transformer a to z testing-ready catalogue

Oil

AccuracyGas

Insulation

Winding

Resistance

Ratio

Winding/

Re-Winding

PD Test

C+DF

HV Test

103 – 105 Freston Road (Industrial Area), London W11 4BD,England

Tel.: +44-(0)20-73133190 • Fax.:+44-(0)20-73133191

E-Mail: [email protected]

MULTI-TEK INTERNATIONAL

Transformer A to Z Testing

J 2007/2008

(2008/2009)

Item Description

1 General Purpose Electrical Test Equipment for Transformers

1A Multimeter type AVO310 with backlit LCD display, min/max store, analogue bar graph and standard accessories

1B Multifunction Installation Tester type MFT1552 complete with standard accessories

1C Power Clampmeter type VA6200 complete with Software

1D Insulation Tester up to 1KV type MIT420 with Standard Accessories

1E Insulation Tester up to 10KV type MIT1020/2 complete with all standard accessories.

2 Winding Resistance Testing

2A Transformer Ohmmeter / Winding Resistance and Tap Changer Test Set type MTO210 complete with test lead set

2B Digital Low Resistance Ohmmeter type DLRO10X (10A / rechargeable) including memory / download functions, with standard accessories

2C 5kV Impulse Winding Tester with Graphic Display type R8228-5

3 Transformer Turn Ratio Testing

3A Fully Automatic Single and 3 Phase Transformer Turns Ratio Test Set type TTR300 Series compete will all standard accessories.

3B Single Phase Hand Held Transformer Turns Ratio test set type TTR100 with standard accessories

3C Hand Held Transformer Turns Ratio test set type TTR25 with standard accessories

(2008/2009)

Item Description

3D Single-phase Hand-cranked Transformer Turns Ratio Test Set type 550005 complete with standard accessories

3E Portable Digital Ratio meter type RTD/3

4 Capacitance + Dissipation Factor (Tan Delta) Test Sets

4A Tangent Delta / C+DF Test Set type Delta2000 complete with 12kV HV supply, all standard accessories, RS232 interface and software, hot collar straps and tap connectors, operation voltage 230V AC, 50Hz

4B 10kV Automatic Power Factor Test Set with “PowerDB software” type Delta 3000 complete with all standard accessories.

5 CT / PT & Meter Testing

5A Current Transformer Tester type MCTT-10 complete with all standard accessories

5B Automatic CT Saturation, ratio, polarity, demagnetizing, burden and insulation test set type MCT1600.

5C Portable current instrument transformer tester type PTT2.1 with standard accessories

5D Three Phase Portable Meter Reference Standard type PWS2.3 PLUS class 0.1 for Meter Testing as well as CT / VT Testing complete with Test leads, Three 100 Amp Clamps, Scanning Head & Software

6 Computerised Power & Distribution Transformer Evaluation

and Test System.

6A Automatic Power Transformer Test Set Type ETP SYSTEM complete with software.

(2008/2009)

Item Description

7 Transformer Frequency Response Analyzer:

7A Transformer Frequency Response Analyzer type FRAX101 complete

with all standard accessories

7B Insulation Diagnostic Analyzer (Capacitance and Dissipation Factor/Water content) for Power Transformers type IDEX300 with all standard accessories and software (AG-19090)

8 PD Measurement for MV and HV. (Applicable to latest measurement on Switchgear & Transformer)

8A PD Level Indicator type PD Surveyor complete with accessories

8B Online & Offline PD Test Equipment for Testing of Medium Voltage Transformer consisting of:

- Partial Discharge Test Hardware type OSMLongshot – WR Xi (4-ch PD Analyser) with HFCT Sensor, TEV Probes, Mini Pulse Generator, 36kV, 850pF High Voltage Coupling Capacitor, Variable Gain Amplifier, Test Cables

- Hardware Package Includes Carry Case, Mini Keyboard, Optical Mouse & Mouse mat and 80GB USB Portable Hard Disk (for storage and transfer of PD Gold data files).

- Partial Discharge Test Software type PD Gold + PD Reader (Data Analysis Software) + PD Waveform Capture & Analysis Software

Option - AC High Voltage Low Discharge System for Offline Testing can be provided on request.

9 Transformer Oil Dielectric Test Set

9A Fully Automatic Oil Test Set type OTS100AF/2 with all standard accessories

(2008/2009)

Item Description

10 Transformer Oil Moisture Test Set

10A Portable Moisture in Oil Test Set type KF-UNI complete with all standard accessories

11 Transformer Oil Treatment Plant

11A Transformer Oil treatment plant (3000L/H capacity) type THV3000 complete with standard accessories Note: Other Versions with different Capacities can be provided on request.

12 Gases and Transformer Oil (Portable GC for detection of 11 Gases)

12A Dissolved Gas Analyzer for transformers according to DIN/IEC567 type Mobil GC version2, consisting of :

-GC with TCD, one channel column, automatic injector valve, Software for detection of 11 fault gases in 19” portable case - 2 Detector FID (Flame Ionisation detector) for more

-accurate detection of hydro carbons - Methanizer (filled with catalytic powder) - 2. column ( Molesiev column 30m x 0,53mm inner diam.) for detection of O, N, H2 -column switch for autom. Measurement. Procedure

-Autom. sample loop with dosing valve, fixed dosing volume -Internal carrier gas supply for approx. 80 h of operation -Internal burning gas supply for approx. 80 h of operation H2 -Partial vacuum degassing according to DIN/IEC 567 consists of: Oil syringe incl. access. 3 port valve gas volume syringegas injection syringe rubber caps -Software and Expert system for autom. measurement procedure -Operating manual -Transport case

(2008/2009)

Item Description

12B Dissolved Gas Analysis with Automatic Degassing unit According to IEC567 /ASTM 3612 type Top Toga GC.

13 Transformer Fault Indicator (Online Monitoring)

13A Transformer monitoring unit type Hydrocal1002 complete with Hydrosoft software for data transfer and data administration

13B Transformer monitoring unit type Hydrocal1003 as Hydrocal 1002 but with additional Water in oil/ moisture measurement.

14 High Voltage Lab for AC, DC and Impulse Testing can be provided on request.

15 Transformer Electrical Workshop

A complete transformer repair workshop including Winding / Rewinding Coil Winding Machines, Ovens, Essential Tools and other Accessories can be provided on request.

1.General Purpose

Electrical Test Equipment

for Transformers

Item 1A

AVO300Digial Multimeter

Designed for Electricians

Fully auto ranging

Large display characters

Separate battery and fuse cover

Data hold

Min/Max store

IEC 61010 compliant

Suitable for applications to CATIII 600 V

AVO300Digital Multimeter

DESCRIPTIONThe AVO300 range of Megger digital multi-meters are toughcompact instruments designed for the contracting electri-cian, but are also suitable for a wide range of applications and users.

Both instruments offer a range of measurement modes for AC and DC applications, resistance and current measurement.

The AVO300 series multi-meters have tough rubberarmoured cases offering the maximum amount of protection from the extreme use found in modern industrial environments. They draw on extensive experience of Megger engineers in designing safe reliableinstruments for the electrical industry.

Neither of the instruments are burdened with functions thatnever get used. This keeps the instruments simple to oper-ate without the continued need to refer to the user manual.

Auto-rangingEvery measurement range is fully auto-ranging. Simplyswitch on the instrument and start testing, leaving handsfree for holding probes, or hanging onto ladders.

Separate Battery/Fuse compartmentThe battery and fuse compartment are accessed by a sepa-rate cover on the back. This allows both battery and fuses tobe replaced without opening the main instrument body, andif the meter is sealed with a calibration seal, will not breakthe seal and invalidate the calibration. A problem found onmost commonly available multi-meters.

Large clear displayThe LCD display has large high contrast 31/2 digit displaywhich are easily read from a distance. Additionally theAVO310 has a backlit LCD for use in poor lighting and a bargraph range showing the percentage of range used.

Data HOLD This allows a displayed result to be held on the display untilneeded, rather than trying to remember a measurement.The result will be held until the HOLD button is pressedagain, or until the unit switches off.

MODEWhen making current measurements the mode functionallow the selection of AC or DC measurement.

MAX/MIN (AVO310 only)The Max/Min function on the AVO310 freezes the maximumor minimum measured result on the screen. The displaydoes not have to be continually watched to capture amomentary increase or fall in circuit voltage, resistance orcurrent.

Voltage measurementBoth AC and DC voltage measurement is possible with theinstrument auto ranging to match the voltage at the testprobes.

Voltage measurements up to 1000V are permitted withoutdamage to the instrument.

Current measurementThree ranges are provided for current measurement ofeither AC or DC current from 0.1uA to 10A. Fused inputsprotect both the user and the instrument in the case ofexcess current.

SPECIFICATIONS

Technical:Insulation: Class2, Double insulation.

Overvoltage category: (AVO300/310)CATIII 600V / CATII1000V

Display

AVO300:

4000 counts LCD display, 25.4mm high

AVO310:

4000 counts LCD display, 20mm high

Backlight

AVO310 only

Polarity

Automatic, (-) negative polarity indication.

Over-range

"OL" mark indication.

Low battery indication: A Battery symbol is displayed when thebattery voltage drops below the operating level.

Measurement rate

2 times per second nominal.

Auto power offAVO300:

Meter automatically shuts down after approx. 15 minutes ofinactivity.

AVO310:

Meter automatically shuts down after approx. 30 minutes ofinactivity.

Operating environment

-10 ºC to 50 ºC (14 ºF to 122 ºF) at < 70 % relative humidity.

Storage temperature

-30 ºC to 60 ºC (-4 ºF to 140 ºF) at <80 % relative humidity.

Relative humidity

90% (0ºC to 30ºC); 75%(30ºC to 40ºC); 45%(40ºC to 50ºC)

For inside use, max height

Operating:3000m

Storage 10,000m

Pollution degree 2


Resistance, continuity and Diode testingResistance can be measured directly on the ohms rangefrom 0ohms up to 1.999Mohms. A continuity buzzer range isalso available for checking low resistance between twopoints. The buzzer sounding if the resistance is less than50ohms (35ohms on the AVO310).

Additionally a diode range exists for testing forward andreverse bias operation of transistors and diodes.

Additional featuresA low battery indicator warns when batteries are low, and anauto-off function ensures no unnecessary battery wastageoccurs if accidentally left on.

A built-in rear stand provides both a bench stand for com-fortable use on the bench, as well as extending round 180°to act as a hanging bracket.

Product selection table AVO300 AVO310

Technical Features

AC Voltage 1000 V 1000 V

DC Voltage 1000 V 1000 V

AC Current 10 A 10 A

DC Current 10 A 10 A

Resistance 0.1 Ω to 40 MΩ Y Y

Diode test Y Y

Fast continuity buzzer Y Y

Auto-ranging Y Y

Data-hold Y Y

Max/Min - Y

Backlight - Y

Tough Rubber Armoured case Y Y

Separate fuse and battery cover Y Y

Integral Stand/Hanger Y Y

Probe holder Y Y

Auto power down Y Y

Battery Low Warning Y Y

Base Accuracy 1% 1%

Battery type 9V PP3 (LR61)

Temperature -10˚C to +50˚C

Installation category 600V CATIII

IEC 61010 Y Y


Safety

The instrument complies with EN61010-2-32

Powe:

One 9 V battery , NEDA 1604, IEC 6F22

Dimensions

182 (H) x 82 (W) x55 (D) mm

Weight: Approx

375g

Accuracy

Accuracy is given at 18 ºC to 28 ºC (65 ºF to 83 ºF), less than 70 %RH

DC Voltage (Auto-ranging)

Range Resolution Accuracy

400.0 mV 0.1 mV +0.5% of rdg ±2 digits

4.000 V 1 mV

40.00 V 10 mV +0.8% of rdg ±2 digits

400.0 V 100 mV

600 V 1 V +1% of rdg ±2 digits

Input Impedance: 7.8MΩ.

Maximum Input: 1000 V d.c.

AC Voltage (Auto-ranging)


400.0 mV (AVO310 only) 0.1 mV

4.000 V 1 mV

40.00 V 10 mV

400.0 V 100 mV

1000 V 1 V +1.5% of rdg ±5 digits

Input Impedance: 7.8 MΩ.

AC Response: 50Hz 60Hz

Maximum Input: 1000 V rms

DC Current (Auto-ranging)


400.0 µA 0.1 µA

4000 µA 1 µA

40.00 mA 10 µA

400.0 mA 100 µA

10 A 10 mA +2.5% of rdg ± 3 digits

Overload Protection: 0.5 A / 1000 V and 10 A / 1000 V Fuse.

Maximum Input: 4000 µA dc on µA range

400 mA dc on mA range

10 A dc on 10 A range.

AC Current (Auto-ranging)


400.0 µA 0.1 µA

4000 µA 1 µA

40.00 mA 10 µA

400.0 mA 100 µA

10 A 10 mA +3.0% of rdg ±5 digits

Overload Protection: 0.5 A / 1000 V and 10 A / 1000 V Fuse.

AC Response: 50Hz to 400Hz

Maximum Input: 4000 µA ac rms on µA

400 mA ac rms on mA

10 A ac rms on 10 A range.

Resistance [Ω] (Auto-ranging)


400.0 Ω 0.1 Ω +0.8% of rdg ±5 digits

4.000 kΩ 1 Ω

40.00 kΩ 10 Ω400.0 kΩ 100 Ω

4.000 MΩ 1 kΩ

40.00 MΩ 10 kΩ

Input Protection: 1000 V d.c. or 1000 V a.c. rms.

AVO300: Diode Test

Test current Resolution Accuracy

0.3mA typical/Open <1.5 V 1 mV +10% of rdg ±5 digits

Open circuit voltage: 1.5 V dc typicalOverload protection: 1000 V d.c. or 1000 a.c. V rms

AVO310: Diode Test

Test current Resolution Accuracy

1mA typical/Open MAX.3 V 1 mV +10% of rdg ±5 digits

Open circuit voltage: MAX. 3 V dc

Overload protection: 1000 V d.c. or 100 V a.c. rms

Audible continuity

Audible threshold:

AVO300:

Less than10 ohm to 30 ohm Ω

Test current: MAX. 0.3 mA

AVO310:

Less than 35 ohm Ω

Test current MAX. 1.5 mA

Overload protection: 1000 V d.c. or 1000 V a.c. rms

+1% of rdg ±5 digits

+0.8% of rdg ±2 digits


+3% of rdg ±8 digits



Item (Qty) Order CodeDigital multimeter CATIII 600V AVO300

Digital multimeter CATIII 600V with Min/Max and backlight AVO310

Included Accessories

Test leads and Probes

Optional Accessories

Replacement Red/Black Test lead set 6220-779

Fused Red/Black test lead set 6220-789

ORDERING INFORMATION

Item 1B

MFT1500 SeriesCombined Insulation, Loop & RCD Tester

DESCRIPTION

The MFT1500 series multifunction tester has been revised toinclude some additional new features:

Called the MFT1500 series, they retain all the essential features necessary for testing domestic, commercial andindustrial fixed wiring, and now include the following:

PFC measurement on both loop test ranges

Selectable Fault (Touch) voltage 25 V or 50 V

Fault (Touch) voltage display

New Megger lead set included with all instruments

DC test functions for RCDs

All instruments test in accordance with InternationalStandards and National Wiring Regulations including BS7671(16th Edition wiring regulations) and European StandardEN61557.

In addition, the MFT1500 series also meets or exceeds therequirements of EN61010-1 Category III 480 V (max) phase-phase.

The MFT1500 is available in 4 options, the standardMFT1501/2 the MFT1502/2 which includes useful additionalfacilities such as backlit display and range switches, plus theunique Megger illuminated switched probe, the MFT1552which has an automatic RCD test feature, and the MFT1553which has Bluetooth downloading capability

The unique modern styling of the instruments allows it tobe operated whilst stood on the floor, a ledge, hung aroundthe neck with the supplied neck strap, or held in the hand.

FEATURES

The MFT1500 series uses the patented Megger digital/analogue arc display. The analogue arc provides an indication of fluctuating readings, while the digital readoutproviding the ability to record accurate results.

All test functions are selectable from the main panel, withno hidden ranges or functions to forget.

Special functions include:

VOLTAGE MEASUREMENT

AC/DC Volt meter provides a means of measuring the supply voltage independently of any other test functions,eliminating the need to carry a separate multimeter.Automatic selection of AC or DC measurement up to 500 V a.c./d.c.

CONTINUITY TESTING

200 mA continuity from 0.01 to 99.9 k exceeds allcurrent requirements for testing final ring circuitconductors, and bonding of services.

Automatic continuity testing commences the momentthe test probes touch the circuit to be tested, allowingfast testing with both hands free.

Fast continuity buzzer is a fast buzzer tone, with nodelay on each test for the buzzer to sound, savingvaluable operator time. This test includes a fast safetycheck for the presence of a voltage as the test probesare connected to the circuit.

Combined 16th Edition testing

Guaranteed non-tripping loop test range

Backlit display and selector ranges

Automatic RCD testing (MFT1552 &MFT1553 only)

Bluetooth downloading (MFT1553 only)

Illuminated switch probe

Selectable touch voltage

Touch (fault) voltage and display

Calibrated earth loop test lead

Calibration certificate



Variable buzzer threshold controls the limit at whichthe continuity buzzer stops sounding. Selected from 2 to 100 in 6 steps.

Lead null stores the test lead resistance and deducts thisvalue from the continuity result, even if the instrument isswitched off. Thus reducing the chance of possiblemeasurement errors.

Insulation testing:

Insulation test at 250 V, 500 V and 1000 V for testinglow voltage applications. A 1000 V warning is issuedprior to performing the 1000 V insulation test.

Live circuit warning when performing insulation orcontinuity measurements a live circuit warning isdisplayed and an audible warning sounded if connectedto a circuit with a voltage greater than 25 V (15 V forcontinuity testing).

Safety lockout at voltages greater than 55 V duringcontinuity and insulation testing, the instrumentautomatically warns the operator and inhibits anytesting, preventing accidental damage to the instrumentand full protection to the operator.

The ‘Auto discharge’ facility safely discharges allcircuits after an insulation test, preventing accidentalshock from a stored charge on a long cable during orafter disconnection.

LOOP TESTING

Low current loop test is a 3 wire non-tripping 0.01 loop test designed to prevent RCD tripping byusing a sophisticated 15 mA loop test pioneered byMegger Limited. This NO-TRIP test ensures the RCD willnot trip whilst performing a loop impedance test.

High current loop test at 25 A provides a fast loop testwhere no RCD is fitted, or for Ze measurement on theincoming side of an RCD.

Supply voltage and polarity indication uponconnection to the mains supply the polarity and voltageare displayed to show correct wiring of the socket undertest or test lead connections. This function also providesa warning of live voltages while continuity or insulationtesting.

Phase-Phase Phase-Neutral and Phase-Earth Loop Testsare possible. No danger of damage from accidental 3-phase connection.

Wide supply voltage; allows loop measurements from55 V to 480 V. No damage if accidentally connectedacross phases.

Prospective short-circuit current (PSC) A dedicatedPSC range, using either the 25 A high current loop test orno-trip test, is provided for rapid measurement of Loopcurrents, both at the socket outlet and distributionboard. The PSC ranges from 1 A to 19.9 kA with a resolution of 1 A, 10 A and 100 A depending on range. Allthe loop and PSC tests are auto-ranging.

RCD TESTING:

10 mA to 1000 mA RCD ranges. All standard RCDsfrom 10 mA to 1000 mA are fully supported. All standardRCD test functions are available with both 0° and 180°phase angle at 1/2I, I and 5I up to 300 mA.

RCD ramp test measures the RCD trip current. Theramp test displays the actual trip current on all RCDranges instead of trip time. Ideal for identifying nuisancetripping RCDs. The current is stepped up from 1/2I to I in200 ms steps.

Fault (Touch) voltage can now be set for either 25 V or50 V depending on application.

Fault/touch voltage can also be displayed up to 100 V ona selectable bargraph.

DC sensitive, RCD test option enables testing at 1/2I,I and 5I.

GENERAL FEATURES:

Quick to pick up and use by using colour codedranges and no hidden functions the MFT1500 series takesminutes to learn how to use. Function buttons arecolour matched to the test mode to ensure easyoperation.

Visible and audible Safety warning features areparamount with live circuit warning and protectioncircuitry. If live voltages exist on a circuit duringinsulation or continuity testing the voltage is displayedon the screen. If this voltage exceeds a safe level, theMFT1500 series inhibits further testing and a warningbeeper sounds for extra safety.

Large easy-to-read LCD using the patented Meggerdigital/analogue arc technology - combining high speedanalogue clarity with digital stability. Making it easy toread even in low light level.

Economical with batteries by incorporates an autoshut off facility that operates after 5 minutes of inactivity,reducing wasted battery consumption.

Innovative test lead connection has been developedfor the MFT1500 series. The unique shutter systemallows only those combinations of test leads permittedfor safe testing to be connected. Unsafe or unnecessaryoptions cannot be connected.

Rubber over-moulded case. The ergonomic rubbermoulding provides a secure comfortable hold, whilst providing maximum protection with IP54 weather proofrating.

Calibration certificate

3 year warranty

MFT1502/2 Additional features

Illuminated switched probe shines a new light on testing.

A fully featured test probe allows for single-handedoperation and test status indication. Probe features include:

Remote test button for single-handed testing in difficultlocations, the test button duplicates the instrument test


button in all test modes.

LED torch using a built-in WHITE LED light provides illu-mination to the probe tip, providing essential lighting inlow light conditions.

Red/green status LED duplicates the warning display onthe main instrument display. A RED LED indicates a voltage present on an insulation range. A GREEN LEDindicates the instrument is displaying a valid test result.

Three interchangeable probe tips are supplied in standard shrouded, removable shrouded and an extendedprobe tip to provides the ideal probe tip option.

Illuminated display and selector ranges. Not only thebacklight, but also the selector dials are illuminated toallow for use in difficult low-light conditions. Range orfunction change automatically operates the backlight, orby manual selection.

Instrument and document carry case is supplied totransport the instrument as well as any necessary testleads, documents, drawings etc.

MFT1552 & MFT1553 Additional features

Selecting the auto (RCD) feature, starts the RCD test current cycle of 1/2I, I and 5I.

Each time the RCD is tripped, resetting it, automatically continues the test sequence.

Once completed, test results can be recalled on theMFT1552 or MFT1553.

MFT1553 Additional features

Using the Bluetooth function, download test results directlyinto inspection certificates, within PowerSuite® running onlaptops and mobile devices for on-site certification.Alternatively the data can be downloaded into MobileDownload Manager for storage and later processing.

SPECIFICATION

Supply Voltage rangeVoltage a.c.:0 V - 500 V 50/60Hz ±2% ±2 digits

Voltage d.c.: 0 V - 500 V ±2% ±2 digits

Polarity indicated above 10 V

Insulation test ranges (to EN 61557-2)Short circuit current: <2 mA

250 V 0.01 M - 99.9 M

500 V 0.01 M - 299 M

1000 V 0.01 M - 499 M

±2% ±2 digits up to 99 M

250, 500 and 1 kV into 1 mA (BS7671, HD384 and IEC364)

Output voltage: +20% - 0% at rated load or less

Live circuit warningsInsulation:

25 V threshold

Continuity:

>15 V threshold

Insulation25 V visual warning

55 V visual, audible and test inhibit

Phase to earth: >280 V visual, audible and test inhibit

Continuity (to EN 61557-4)Ohms:0.01 - 99.9 (±2% ±2 digits)

100 - 99.9 k (±5% ±2 digits)

BuzzerSelectable limits of 2 , 5 , 10 , 20 , 50 , 100

Open circuit voltage 4-5 V d.c.

Test current:

>200 mA @ 2

Test Lead null:

Up to 9.99 (zero uses Test Button)

Loop test ranges (to EN 61557-3)Line/Earth(Single phase)

25 A 0.01 - 9.99 (±5% ±0.03 )

10.0 -89.9 (±5% ±0.5 )

90 - 899 (±5% ±5 )

900 - 3.00 k (±5% ±20 )

Supply:55 V - 280 V 45 Hz to 65 Hz

Phase to phase25 A 0.01 -1 9.99 (±5% ±0.03 )

Supply:55 V - 480 V 45Hz to 65Hz

Low current Loop (NO TRIP)15 mA 0.01 - 2.00 k (±5% ±0.03 ohms ± Noise Margin).

Supply:55 V - 270 V 45Hz to 65Hz

Prospective Shortcircuit Current PSCProspective fault current = Nominal Voltage/Loop Resistance

Accuracy is therefore derived from the loop test.

1 A - 199 A 1 A resolution

0.02 kA - 1.99 kA 10 A resolution

2.0 kA - 19.9 kA 100 A resolution


RCD ranges (to EN-61557-6)Supply:

100 V - 270 V 45Hz to 65Hz

Ranges:

1000 mA, 500 mA, 300 mA, 100 mA, 30 mA, 10 mA

Type: 1/2I - 1/2 times the selected RCD rated current.

I - One times selected RCD rated current.

5I - Five times I RCD rated current.

RAMP - A ramp test that displays actual trip current .

DC sensitive - A DC test current at 1/2I, I and 5I.

Current accuracy:

No trip (1/2I) -8% to -2%

Trip (I) and 5I +2% to +8%

Trip time accuracy:

±1% ±1 ms

Touch (Fault) voltage: 0 V to 100 V error ±5% to +15% ±0.5 V

Selection: 25 V or 50 V

Power supply8 x 1.5 V Alkaline cells type LR6

Battery life: 2600 insulation tests with a duty cycle of 5 secondson and 25 seconds off at 500 k .

Fuses

Replaceable 500 mA (F) HBC 10 kA 500 V

Non-replaceable 7 A (SIBA 70-065-63) x 2

Non-replaceable 1 A

Remote probe: MFT1502/2, MFT1552 and MFT1553 only

Torch feature: 5mm WHITE LED 1500 mcd

Safety: CLASS 1 LED to IEC 60825:2001 Interchangeable tips

Battery: 1 x 9 V Alkaline cell type PP3

Fuse: Non-replaceable 7 A (SIBA 70-065-63)

SafetyDouble insulated to IEC61010-1-2001, Installation Category III, 300 V phase to earth, 500 V phase to phase.

In addition Probe designed to meet IEC 61010-031-2002, Doubleinsulated to Installation Category III, 300 V phase to earth, 500 Vphase to phase.

EMCIn accordance with IEC 61326 including amendment No. 1

EnvironmentalOperating range: -5 to +40ºC

Operating humidity: 90% RH at 40ºC max

Storage temperature: -25 to 65ºC

Maximum altitude: 2000 m

Dust and water protection: Instrument IP54, probe no rating

PhysicalDimensions:150 mm high x 85 mm wide x 235 mm deep

(6 in. x 3.5 in. x 9.5 in.)

Weight:1440 gms (3lb)

EN61557:

Complies with the following parts of 61557, electrical safety inlow voltage systems up to 1000 V a.c. and 1500 V d.c.-Equipment for testing, measuring or monitoring of protectivemeasures:-

Part 1- General requirements

Part 2- Insulation resistance

Part 3- Loop resistance

Part 4- Continuity

Part 6- Residual current devices (RCD)

Part 10- Combined measuring equipment

The Bluetooth word mark and logo are owned by the Bluetooth SIG. Inc.and any use of such marks by Megger is under licence.

Item (Qty) Order No.Multifunction tester standard MFT1501/2

Multifunction tester with illuminated switch probe

MFT1502/2

Multifunction tester standard (European) MTF1501/2E

Multifunction tester with illuminated switch

probe (European) MFT1502/2E

Multifunction tester with automatic RCD testing MFT1552

Multifunction tester with automatic

Bluetooth downloading MFT1553

Accessories included with MFT1501

User guide on CD 6172-831

3 wire test lead

Crocodile clips (red, black and green)

Mains plug (BS1363) test lead

Item (Qty) Order No.Additional accessories with MFT1502/MFT1552/MFT1553

As MFT1501/2 plus:

Illuminated switched probe

Instrument/document carry case

Optional accessories for MFT1500 Series

PowerSuite On-site (MFT1553 only) 6111-777

Replacement 3 wire test lead set 6220-796

Fused prod and clip set 6180-405

Standard switched probe 6220-836

Illuminated switched probe 6311-089

Test lead with Schuko plug 6231-593

Test lead with UK mains plug 6220-740

Test lead with USA mains plug 6220-643

Earth bond test lead set 6231-586

Instrument/document carry case 6420-143

Illuminated probe tip set 6121-562

Item 1C

Products Guarantee 2 years

Network mains analysis clamp

The screen on this clamp can be used either as a numeric display oras a graphical screen like an oscilloscope, or as a logging instru-ment. The clamp measures the true RMS voltage and current, appa-rent, reactive, active, balanced three-phase and single-phase power,cosj, peak factor, total distortion, power consumption and maximumpower demand. In graphics mode, it displays and quantifies the first 50 harmonics ofthe signal (simultaneously as a percentage of the fundamental com-ponent and in volts, response in amperes), the form of the U and Isignals, the single-phase and three-phase diagram. In loggingmode, the clamp stores information in its memory. The sampling fre-quency and the start/stop cues can be programmed. Long acquisi-tions at high frequencies, with several simultaneous quantities, arepossible by using an RS232 output to a PC and special software.

ref. VA6200

Total effective current – THD Harmonic current no.1 %harmonic no.1 / fundamental component

Three-phase diagram V1 V2 V3 I1 I2 I3 ϕ

Oscillogram U and I Phase angle ϕ

OTHER FUNCTIONSMeasurement of the maximum demand in kW and kVAProgrammable threshold for transient capture (128 events)32 to 256 points/cycle can be saved on the internal memoryMemory size: 50,000 logs can be programmed based on a period of between 1 and 6000s.Real time output of: oscillograms, power, settings and harmonicsSwitches off automatically if not used

Optoisolated RS232 INTERFACE (8 bits, ASCII format) supplied as standardSystem software for curve charts and numeric results on PC.

OTHER FEATURESOpening of clamping jaws: 55mmDimensions/Weight: 270 x 100 x 45mm Weight 800gSupplied with probes and a carry case

FUNCTIONS RANGES ACCURACYIAC RMS 4.0 ~ 1500.0 A auto ranging 0.5% + 5 dgtVAC RMS 4.0 ~ 600.0 V auto ranging 0.5% + 5 dgtW - VA - VAR 1000.0 W - 10.000 - 100.00 - 1000.0kW 1% + 20 dgtEnergy Wh kWh 0 Wh ~ 999 999 kWh (resp VAh &VARh) 1% + 20dgtCrest factor CF 1.00 - 99,99 5% + 30 dgtTotal harmonic distortion 0.0 ~ 1000.0 % 2% - 6% - 10% (as per range)

Power factor cosϕ 0.000 - 1.000 0.04phase angle - 180° ~ +180° 0.1°Harmonics of AC voltage Order 1 ~ 20th : 0.0 ~ 100.0% 2%in V and in % Order 20th ~ 50th : 0,0 ~ 100.0% 4%

Harmonics of AC current Order 1 ~ 20th : 0,0 ~ 100.0% 2%in V and in % Order 20th ~ 50th : 0.0 ~ 100.0% 4%

IAC and VAC transients Capture of transient events (32000)

Peak current – THD - Harmonic spectrum

Reactive, active apparent power cos ϕ consumption

Item 1D

MIT400 CAT IVIndustrial Insulation Testers

DESCRIPTION

The new Megger MIT400 series insulation and continuitytesters has been designed for electrical testing by the utilities, industrial, commercial and domestic electricians.The wide range of features also makes the MIT400 seriesideal for the maintenance and service/repair engineer.

They replace the well-established BM400 insulation testerrange, given greater functionality with simplified operation,greater application range and increased safety.

The rangeThe range consists of five instruments:

MIT400 250 V, 500 V and 1000 V

MIT410 50 V, 100 V, 250 V, 500 V and 1000 V + PI, DAR

MIT420 50 V, 100 V, 250 V, 500 V & 1000 V + PI, DAR and result storage

MIT430 50 V, 100 V, 250 V, 500 V & 1000 V + Bluetooth download

MIT40X 10 V to 100 V in 1 V steps

INSULATION TESTING

Test voltages - 250 V to 1000 V or 50 V to 1000 V insulation test voltages available

Test Lock - Locks insulation test on continuously. Test voltage display - The actual test voltage is displayed

on the smaller digital readout, with the insulation resulton the larger digital display.

Analogue arc - The display also features an analogue arcto replicate the response of a moving coil display.

PI and DAR - Polarisation Index (PI) and DielectricAbsorption Ratio (DAR) functions

200 G - Insulation testing from 20 G (MIT400) to 200 G (MIT420 and MIT430).

Silicone leads - High quality flexible silicone test leadsare comfortable to use and prevent measurement errorson higher G ranges.

Test inhibit - prevents testing if voltages in excess of 50 Vare detected when making insulation tests.

Insulation buzzer - The buzzer can be set to buzz if theinsulation resistance is above a preset limit, set via theSetup menu.

CONTINUITY TESTING

Auto-test - Auto test on circuit contact enables real twohanded operation without the need to press the test button.

200mA or 20mA - Either 200 mA or 20 mA continuitytest currents are available. 20 mA test current will considerably increase battery life.

Lead null - Lead resistance compensation (NULL) operates up to 9 of resistance.

Buzzer - ON-OFF selected by simple push button. Buzzer limit - Continuity buzzer limit alarm provides

adjustment of the maximum resistance the continuitybuzzer sounds. This is adjustable from 1 to 20 in 5steps.

CAT IV 600 V applications

TRMS & DC Voltage measurement

Insulation testing up to 1000 V and 200 G

Continuity testing at 200 mA or 20 mAdown to 0.01

Pass/Fail limit alarms

Combined Analogue and dual digitaldisplay

PI/DAR and Timer function

Test result storage (MIT420)

Bluetooth® wireless data transfer(MIT430)

MIT400 CAT IVIndustrial Insulation Testers

k range extends resistance measurement to 1 M .

DISPLAY

The display offers a combination of analogue arc and a dualdigital readout:

Analogue arc:

Full display width analogue arc. Patented arc display shows essential charge and discharge

characteristics not visible on a digital display. Single pointer “needle” response is similar to a moving

coil meter. Logarithmic display for better low insulation value

measurements.

Dual digital display:

Large main digital readout for good visibility of all mainmeasurement results

Second digital display for additional data such as:

Insulation test voltage.

Insulation leakage current.

Supply frequency (when measuring volts).

Test mode eg. PI, DAR or TI (Timed mode).

MIT40X - VARIABLE INSULATION VOLTAGETESTER.

The MIT40X provides a unique solution for awkward insulation voltage measurement applications. The MIT40Xhas a variable insulation test voltage from 10 V to 100 V in 1 V steps, selectable in the “Set-Up” menu. Once selectedthis can only be changed by re-configuring in the Setupmenu.

Typical applications include:

Commercial avionics Military land, marine and air communications Manufacturing/production line goods Electrostatic measurement Component testing Battery powered traction and lifting equipment

STORAGE & DOWNLOADING RESULTS

MIT420The MIT420 is capable of saving test results for recall to thescreen. A simple storage structure allows for a test numberand screen results to be recalled individually.

MIT430The MIT430 supports both test result storage and down-loading.

Test results can be stored in the instrument and subse-quently downloaded to a computer with the Megger down-load manager software.

Data transfer is by Bluetooth, with the MIT485 Bluetooth

MIT400 SeriesIndustrial Insulation Testers

transmitter being enabled when the Download mode isselected on the instrument.

NOTE: The receiving PC needs to have Bluetooth capabilityor a USB port fitted a Bluetooth receiver. Class II (10m) isacceptable.

SAFETY

Designed to be exceptionally safe to use, fast detecting circuitry prevents damage to the instruments if accidentallyconnected to live circuits or across phases. Specifically, allinstruments:

Meet the international requirements of IEC1010-2 andEN61557.

Live circuit detection inhibits insulation testing on circuitsabove 50 V.

Live circuit detection and test inhibit on continuity measurements.

Default display of live circuit voltage on all ranges. Detection and inhibit functions even if the protection

fuse has failed. Suitable for use on CAT IV applications and supply

voltages to 600 V.

600 V CAT IV

All MIT400 instruments are designed to meet the safetyrequirements for use on CAT IV 600 V.

APPLICATIONS

(A) Electrical installations testing:The MIT400 includes all the features required for electricians and engineers working in a range of industries.Available features are selected to make testing easy and fastin a range of situations. Typical industries include:

Electrical supply companiesLarge and small scale electrical installationPeriodic inspection and testingCable testing

(B) Service, repair and maintenance:

The MIT410 and MIT420 add additional features requiredfor engineers working on more demanding applications.Functions such as PI and DAR, capacitance measurementand higher insulation range increase the suitability for applications such as:

Manufacturing/production testingPanel buildingRailway and other transportationMotor testingCable inspection/quality controlStreet lighting maintenanceAvionics ground testing and maintenanceMilitary applications

MIT400 SeriesIndustrial Insulation Testers

SPECIFICATION

All quoted accuracies are at +20°C.

InsulationNominal test voltagesMIT400 250 V, 500 V, 1000 VMIT410, 420,430 50 V, 100 V, 250 V, 500 V, 1000 VMIT40X 10 V to 100 V variable (1 V increments)

Insulation resistance rangeMIT400 20 GMIT410 100 GMIT420, 430 200 GMIT40X 200 G

Range Full Scale Accuracy1000 volts ±3% ±2 digits ±0.2% per G500 volts. ±3% ±2 digits ±0.4% per G250 volts. ±3% ±2 digits ±0.8% per G100 volts. ±3% ±2 digits ±2.0% per G50 volts. ±3% ±2 digits ±4.0% per G10 volts ±3% ±2 digits ±2.0% per 100 M

Analogue range: 1 G full scale

Short Circuit Current: 2 mA +0% -50%Terminal voltage: -0% +20% ±1 V

Test Current on load: 1 mA at min. pass value of insulation specified in BS7671, HD384and IEC364, 2 mA max.

EN61557 Operating range: 0,10 M to 1,00 G

Leakage Current: 10% ±3 digits

Voltage display: 3% ±3 digits ±0.5% of rated voltage

Polarisation Index (PI): 10 min / 1minute ratio

Dielectric Absorption Ratio (DAR): 60 sec / 30 sec ratio

Notes:(1) All ranges measure from 0,00 M upwards.

(2) Above specifications only apply when high quality silicone leads are being used.

ContinuityMeasurement: 0,01 to 99,9 (0 to 100 on

analogue scale)Accuracy: ±3% ±2 digits (0 to 100 )Open circuit voltage: 5 V ±1 V

Test current: 200 mA (–0 mA +20 mA)(0.01 to 9.99 )20mA (±1 mA ) (10.0 to 99.9 )

Zero offset at probe tips: 0,10 typicalLead resistance zeroing: Up to 9,00 Buzzer: Variable limit 1 , 2 , 5 ,

10 , 20

ResistanceMeasurement: 0,01 k to 1000 k (0 to 1 M

on analogue scale)

Accuracy: ±3% ±2 digitsOpen circuit voltage: 5 V ±1 VShort circuit current: 20 µA ± 5 µA

Voltage range0 to 600 V d.c. ±2% ±2 digits10 mV to 600 V TRMS sinusoidal (40 to 400 Hz) ±2% ±2 digits0 to 1000 V on Analogue scaleUnspecified input level 0 - 10 mV (40 to 400 Hz)

For non-sinusoidal waveforms additional specificationapply:±3% ±2 digits 101 mV to 600 V TRMS and ±8% ±2 digits 10 mV to100 mV TRMS

Default Voltmeter: Operates at >25 V a.c. or d.c. on any range except OFF

Frequency: 40-450 Hz (40 Hz - 99,9 Hz) ±0.5% ±1 digit (100 Hz to 450 Hz)

Capacitance measurementMIT420, MIT430

Measurement range: 100 pF to 10 µFAccuracy: ± 5.0% ±2 digits

Distance by capacitance:MIT420, MIT430Arithmetic conversion from capacitance measurement on Default capacitance measurement: 50nF/m

Capacitance range: 40 nF/m to 60 nF/m

Result storageCapacity: >1000 test resultsDownload: Bluetooth wirelessBluetooth Class: Class IIRange: up to 10 m

Power Supply: 5 x 1,5 V cells type IEC LR6 (AA, MN1500, HP7, AM3 R6HP) AlkalineNiMH rechargeable cells may be used.

Battery life: 2200 insulation tests with duty cycle of 5 sec ON /55sec OFF @ 1000 V into 1 M

DimensionsInstrument: 220 x 92 x 50 mm (8.66 in. x 3.63 in. x 1.97 in.)

Instrument + case: 456 x 178 x 89 mm (18 in. x 7 in. x 3.5 in.)

WeightInstrument only: 590 gms, 775 gms with boot (20.73 oz. (27.22 oz.)Instrument plus case: 1.75kg (3.86 lb)

FuseUse only a 500 mA (FF) 1000 V 32 x 6 mm ceramic fuse of highbreaking capacity HBC 50 kA minimum. Glass fuses MUST NOT befitted.

Safety ProtectionThe instruments meet EN 61010-1 (1995) to 600 V phase to earth,Category IV. Refer to safety warnings supplied.

ORDERING INFORMATIONItem (Qty) Order No.Basic CATIV 600 V with 250 V/500 V/1000 V insulation

MIT400-EN

As MIT400 + 50 V, 100 V, PI and DAR MIT410-EN

As MIT410 + result storage and recall MIT420-EN

Bluetooth downloading version of MIT420 MIT430-EN

Special selectable voltage 10-100 V MIT40X-EN

Included accessories

Test leads: 2 wire lead set to CAT IV 600 V, consisting of :

1 x Red lead 1.25m complete with probe

1 x Black lead 1.25m complete with probe

Item (Qty) Order No.1 x Red croc clip

1 x Black croc clip

1 x instrument rubber boot

1 x Calibration certificate (not included with MIT40X)

1 x Switched probe (not included with MIT400)

Owners information CD

Optional accessories

Replacement lead set 6220-813

SP5 remote switch probe 6220-812

Rubber boot with stand 6231-802

Hard case 5410-420

MIT400 CATIVIndustrial Insulation Testers

E.M.C.In accordance with IEC 61326 including amendment No.1

Temperature effectsTemperature coefficient: <0,1% per °C up to 1 G

EnvironmentalOperating range: -10 to +55°COperating humidity: 90% RH at 40°C max.Storage temperature range: -25 to +70°CCalibration Temperature: +20°CMaximum altitude: 2000 mDust and water protection:IP54 Protected against dust and splashing water

The Bluetooth word mark and logo are owned by the Bluetooth SIG, Inc. andany use of such marks by Megger is under license.

Item 1E

MIT520/2 and MIT1020/25 kV and 10 kV Insulation ResistanceTesters

CAT IV 600 V

Mains or battery powered

Variable test voltage from 50 to 5000 or10,000 V

Automatic IR, PI, DAR, SV and DD tests

Measures to 15 TΩ (5 kV) and 35 TΩ(10 kV)

RS232 and USB download of results toMegger Download Manager

On board memory for results storage

MIT520/2 and MIT1020/25 kV and 10 kV Insulation Resistance Testers

DESCRIPTION

The new 5 and 10 kV insulation resistance testers fromMegger are designed specifically to assist you with thetesting and maintenance of high voltage electricalequipment. IEEE 43-2000 recommends the use of 10 kV formotor windings rated above 12 kV and the MeggerMIT1020/2 facilitates this. The case is incredibly rugged andeasy to carry, being made of tough polypropylene andachieving an ingress protection rating of IP65. In addition,the model number is marked on both sides of the case forease of identification in stores or vehicles.

The instruments have a large easy to read backlit LCDdisplay making it equally suitable for use in both brightsunlight and poorly lit environments. Information displayedincludes resistance, voltage, leakage current, capacitance,battery status and time constant. In addition, the elapsedtime of the test is displayed constantly, removing the needfor separate timers. Adjustable timers and limit alarms areincluded.

The instrument can test when being powered by the mainsor its internal rechargeable battery, a great benefit when siteconditions are unknown or long term testing is required.

The controls of the instrument are clear and unambiguousand a "quick start" guide is included in the lid of theinstrument removing the need to carry bulky manualsunder site conditions.

The instrument is fitted with a guard terminal to enhanceaccuracy. The guard test lead is included as standard withthe instrument.

To further enhance the flexibility of the instruments bothhave the facility to set the test voltage in steps from 50 V tothe maximum output voltage avoiding the expense ofseveral insulation resistance testers to meet your applicationneeds.

These IR instruments are designed to meet the highestsafety standards and meet the requirements of EN61010. Inaddition, the instrument measures the voltage at theterminals and if this is above 50 V then the instrument willdisplay the high voltage warning and inhibit testing. At theend of the test the instrument will automatically dischargethe energy transferred to the equipment during the testphase.

The MIT520/2 and MIT1020/2 are equally suited to routinetesting and diagnostic regimes being pre-programmed withIR, PI, DAR, SV and DD profiles.

Real time outputSerial, once per second of test voltage, current and resistance

Operating temperature-20°C to 50°C

Storage temperature-25°C to 65°C

Ingress protection (lid closed) IP65

Humidity90% RH non-condensing at 40°C

SafetyMeets the requirements of EN61010-1:2001 CATIV 600 V

EMCMeets the requirements of EN61326-1:2006 for use in heavyindustrial areas.

Dimensions 305 x 194 x 360 mm (12.7 x 6 x 14.2 inches)

Weight 7.1 kg (16lb) approx.


SPECIFICATIONVoltage input range 85-265 V rms, 50/60Hz, 60 VA

MIT520/2 battery life Typical capacity is 6 hours continuous testing at 5 kV with a 100 MΩload

MIT1020/2 battery life Typical capacity is 4 hours continuous testing at 10 kV with a 100MΩ load

MIT520/2 test voltages 50 V to 1 kV in 10 V steps, 1 kV to 5 kV in 25 V steps

MIT1020/2 test voltages 50 V to 1 kV in 10 V steps, 1 kV to 10 kV in 25 V steps

MIT520/2 accuracy (23°C, 5 kV)±5% to 1 TΩ±20% to 10 TΩ

MIT1020/2 accuracy (23ºC, 10 kV)±5% to 2 TΩ±20% to 20 TΩ

Guard2% error guarding 500 kΩ leakage with 100 MΩ load

Display rangeDigital display (3 digits) 10 kΩ to 15 TΩ (MIT520/2) to 35 TΩ (MIT1020/2)Analogue display 100 kΩ to 1 TΩ

Short circuit/charge current 3 mA @ 5 kV (MIT520/2) or 10 kV (MIT1020/2)

Capacitor charge time <3 seconds per µF at 3mA to 5 kV (MIT520/2)<5 seconds per µF at 3mA to 10 kV (MIT1020/2)

Capacitor discharge time<120ms per µF to discharge from 5000 V to 50 V (MIT520/2)<250ms per µF to discharge from 10000 V to 50 V (MIT1020/2)

Capacitance measurement (above 500 V) 10 nF to 50 µF (dependent on measurement voltage)

Capacitance measurement accuracy (23°C)±5% ±5 nF

Voltage output accuracy (0°C to 30°C) +4%, -0%, ±10 V of nominal test voltage at 1 GΩ load

Current measurement range0.01 nA to 5 mACurrent measurement accuracy (23°C)±5% ±0.2 nA at all voltages

Interference rejection MIT520/2 1 mA per 250 V up to a maximum of 2 mAMIT1020/2 1 mA per 600 V up a maximum of 2 mA

Timer rangeUp to 99 minutes and 59 seconds from start of test15 second minimum setting for test voltage ≥1000 V30 second minimum setting for test voltage <1000 V

Memory capacity 32kB

Test regimesAuto IR, PI, DAR, SV and DD.

InterfaceRS232 and USB

Data storeVoltage, test time, leakage current, resistance, PI, DAR, DD,capacitance and time constant


Registered to ISO 9001:2000 Cert. no. Q 09250

Registered to ISO 14001-1996 Cert. no. EMS 61597

Item (Qty) Order Code5 kV insulation resistance tester MIT520/2

10 kV insulation resistance tester MIT1020/2


3 m lead set insulated clips 6220-820

User guide on CD-ROM 2000-213

RS232 cable 25955-025

USB cable 25970-041

3 x 3 m lead set insulated clips (MIT1020/2 only) 6220-811


HV test lead sets

3 x 3 m un-insulated small clips 8101-181

3 x 8 m un-insulated small clips 8101-182

3 x 15 un-insulated small clips 8101-183

3 x 10 m medium insulated clips 1000-441

3 x 15 m medium insulated clips 1000-442

3 x 3 m large insulated clips 6220-811



Item (Qty) Order Code

Control circuit test lead sets

2 x 3 m control circuit, small insulated clips 6220-822

Screened HV test leads

1 x 3 m, 5 kV screended un-insulated small clips 6220-835

1 x 15 m, 5 kV screened un-insulated small clips 6311-080

1 x 3 m, 10 kV screended un-insulated small clips 6220-834

1 x 10 m, 10 kV screened un-insulated small clips 6220-861

1 x 15 m, 10 kV screened un-insulatedsmall clips 6220-833


2.Winding Resistance

Testing

Item 2A

DESCRIPTIONThe MTO210 Transformer Ohmmeter is a line-operated,field-portable instrument designed specifically to measurethe dc resistance of all types of magnetic windings safelyand accurately. It can test rotating machine windings andperform low-current resistance measurements onconnections, contacts and control circuits.

The MTO210 employs a patented “Quick Test”measurement technique, which stabilizes the measurementcurrent in the shortest time possible in order tosignificantly reduce test times.

Also, the dual set of potential inputs measures theresistance of the primary and secondary windings of asingle- or three-phase transformer simultaneously. Thisdual reading characteristic, along with the bi-directionalcurrent output capability, also help to speed up themeasurements when used to test windings on three-phasetransformers.

The Transformer Ohmmeter is extremely useful whentesting the windings and contact resistance of tap-changerswith “make-before-break” contacts and voltage regulators.This action will check for pitted or misaligned contacts asthe instrument will give an indication if either conditionoccurs.

Users are protected by the auto-shutdown safety feature.Any inadvertent disconnection of a test lead or loss ofpower to the instrument will safely discharge the energystored in the test sample.

APPLICATIONSThe MTO210 Transformer Ohmmeter is used:

To verify factory test readings

As part of a regular maintenance program

To help locate the presence of defects in transformers,such as loose connections

To check the “make-before-break” operation of on-loadtap-changers

A regular maintenance program that includes windingresistance measurements is the most effective way to usethis instrument. Once a benchmark is established,subsequent test results can be compared to determine ifchanges are occurring in the transformers and associatedcontrol wiring, voltage regulators, motors, generators,breaker contacts, and all types of connections (bolted,soldered, crimped, etc.).

Tap-changers are mechanical devices and the mostvulnerable part of a transformer. Tap-changers result inmore failures and outages than any other component andso require frequent testing and attention to ensure proper,reliable operation.

FEATURES AND BENEFITS Direct 2-channel digital reading allows for testing two-

windings at a time without the need for time-consumingbridge balancing.

Patented “Quick Test” measurement technique minimizestest time.

User-selectable maximum current range ensuresprotection of small transformers.

Bi-directional current output capability allows the unit totake advantage of any existing magnetization of thetransformer core to help stabilize test currents quicker inorder to reduce test times.

Built-in demagnetization circuitry allows the operator tode-magnetize the transformer core, either before orupon completion of resistance testing, or as a stand-alone feature.

MTO210Transformer Ohmmeter

Direct 2-channel digital reading

Patented “Quick Test” measurement technique

0.25% measurement accuracy

Integrated demagnetization feature

Tests operation of on-load tap-changers

Auto safety discharge circuit provided


Item (Qty) Cat. No.


Potential leads, 66 ft (20m) [2pr] 37179

Current leads, 66 ft (20 m) [2 pr] 37180

Beacon strobe light 37181

Printer (includes battery/line powered serial thermal printer, printer interface cable)

120 V, 60 Hz 35312-1

230 V, 50 Hz 35312-2

Foam-lined transit case 37182

Remote trigger switch 30915-220

PowerDB (full version) software DB1007


Item (Qty) Cat. No.

Transformer Ohmmeter120/240 volt, 50/60 Hz input MTO210


Potential leads, 33 ft (10 m) [2 pr] 37173

Current leads, 33 ft (10 m) [1 pr] 37174

Shorting lead, 9.9 ft (3 m) [1] 37175

Ground lead, 15 ft (4.6 m) [1] 4702-7

AC power cord (IEC60320-C13 to US standard) 17032

AC power cord (IEC60320-C13 to Schuko CEE 7/7) 17032-13

Interlock connector 37177

In-lid quick start guide 37178

Canvas carrying bag (for leadset) 30915-211

Instruction manual ATVMMTO210

PowerDB LITE software DB0001

Registered to ISO 9001:2000 Cert. no. 10006.01


SPECIFICATIONS

Input120/240 V, 50/60 Hz, 720 VA

OutputCurrent Range: Up to 10 A (dc)Open-Circuit Test Voltage: up to 50 V dc

Resistance measurement/displayResistance: 1 µΩ to 2000 ΩAccuracy: ±0.25% reading, ±0.25% full scale (when current hasstabilized)Resolution: Up to 6 digits

EnvironmentalOperating: 14° F to 122° F (-10° C to 50° C)Storage: 5° F to 158° F (-15° C to +70° C)Relative Humidity: 0-90% non-condensing

DisplaysTwo 1” high, 6 character, 7-segment, LCDsOne 0.71” high, 6 character, 7-segment, LCD

Dimensions8.5 H x 21.5 W x 13 D in (216 H x 546 W x 330 D mm)

WeightNet 28 lb (12.7 kg)

PrinterPrint to optional 4 inch strip thermal paper printer

The MTO210 allows for test of transformers with on-load tap-changers and provides a “break-before-make”indicator, in the event of any discontinuity.

Beacon drive circuit is provided for use with optionalbeacon strobe light.

For those users who choose to create an externalinterlock safety fence, a safety interlock circuit isprovided.

Remote trigger switch is provided for testingtransformers with tap-changers.

Internal flash memory allows for mass storage of datasetrecords, for later recall, printing, and analysis.

Ruggedized Kelvin clamps, with 4 inch (100 mm) jaws,are provided eliminating the need for bushing adapters.

Field upgradeable firmware.

Compatible with PowerDB software package.

Built-in discharge circuit safely discharges the specimenwhen test is completed, if lead accidentally disconnectsor if power is lost.

Wide resistance range allows heat-run testing of manytransformer types.

Output RS232 serial port is provided for optionalprinting of results.

Ideal for use in shop or substation environmentsbecause of its light weight and portability.

Item 2B

DLRO 10 and DLRO 10XDigital Microhmmeter

DESCRIPTION

DLRO 10 and DLRO 10X set the standards for low resistancemeasurement. DLRO 10 and DLRO 10X are fully automaticinstruments, selecting the most suitable test current up to 10A d.c.to measure resistance from 0.1 µΩ to 2000 Ω, on one of sevenranges.

For users who desire more control over the measurement process,DLRO 10X uses a menu system controlled by a two-axis paddle toallow the user to manually select the maximum test current.

DLRO 10X also adds real time download of results and on boardstorage for later download to a PC.

Both instruments are built into a strong, lightweight case that isequally at home in the field or in the laboratory. Light enough tobe worn around the neck, they are small enough to be taken intoareas that were previously too small to access.

DLRO 10 uses a large, bright 4 1/2 -digit LED display while DLRO10X has a large, backlit LCD display. Normally, measurements aremade with forward and reverse currents to cancel the effects ofany standing voltages across the test sample.

The average value is then displayed within 3 seconds, to a basicaccuracy of 0.2%. DLRO 10X displays both forward and reversemeasurements as well as the average of the two.

DLRO 10X allows the user to set high and low pass limits, therebyenabling simple go-no-go testing.

At the end of a test DLRO10X will store the test results, as well asany notes relevant to the test.

To assist operator safety and ease of use, both instruments aresupplied complete with a pair of duplex handspikes with 1.2 m (4 ft) leads. One of the probes is fitted with LED’s, whichduplicate indicators on the instrument display indicating that allfour contacts have been made, the presence of a high voltageacross the load, and the presence of current flow while a load isdischarging. A full range of test leads is available with probes,clamps and Kelvin clips.

Nickel Metal Hydride (NiMH) batteries power the instruments.The battery packs are interchange-able so that an exhaustedbattery may be recharged using the external charger suppliedwhile testing continues using a spare pack. Although full chargingwill take 4 hours, a fast charge mode allows the battery to be 90%charged within 2 1/2 hours from a 12 volt battery or from astandard 120/230 V AC supply via the supplied charger. Thebattery pack contains its own battery state indicator, which allowsthe charge-state to be monitored, even without being connectedto the instrument.

DLRO 10X is fitted with RS232 communications that will allowresults to be downloaded in real time or stored for later retrieval.

Up to 700 sets of results may be stored within DLRO 10Xcomplete with notes containing up to 200 characters which maybe added using the on board keypad. These results can also bedownloaded to a PC.

MEASUREMENT MODES:A variety of measurement modes are available. Since theintroduction of V2.0 firmware, Normal, Auto, Continuous andInductive mode are available on both the DLRO 10 and the DLRO 10X.

Auto current reversal cancels standing emfs

Protected to 600 V

Automatically detects continuity inpotential and current connections

Multiple operating modes including fullyautomatic

Alpha-numeric keypad for entering testnotes (DLRO 10X)

User selectable high and low limits (DLRO 10X)

Printer output and memory (DLRO 10X)

DLRO 10 AND DLRO10XDigital Microhmmeter

DLRO 10 AND DLRO 10XDigital Microhmmeter

FEATURES AND BENEFITS

Small, lightweight and portable - can be used in tight places,reduces the need for extra long leads and two personoperation.

Four terminal resistance method shows the true resistance ofthe item under test.

Bright LED (DLRO 10) and LCD (DLRO 10X) displays are easilyvisible under all lighting conditions and reduce human error.

Automatically applies forward and reverse currents which cancelout any standing voltages across the sample under test.

Checks for undue noise during measurement, reducing thepossibility of recording the incorrect result.

Automatically detects continuity in P and C circuits, preventingerroneously high reading to be taken due to high resistancecontact.

Battery module has a battery condition indicator allowing theuser to check the state of spare batteries without connecting tothe instrument.

RS232 connector on the DLRO 10X allows downloading ofresults in real time or stored for later retrieval.

DLRO 10 will display the average of the measurements achievedusing forward and reverse current, while DLRO 10X displays bothindividual measurements and the average.

Normal mode initiates a test by pressing the Test button on theinstrument front panel after connecting the test leads. Continuityof all four connections is checked, forward and reverse currentsare applied.

Auto mode allows forward and reverse current measurements tobe made and the average displayed simply by making contactwith all four probes. This mode is ideal when working with thesupplied handspikes. Each time the probes are removed andreconnected to the load another test will be performed withoutthe need to press the test button on the instrument.

Continuous mode allows repeated measurements to be made onthe same sample. Simply connect the test leads and press the testbutton. The measurement is updated every 3 seconds until thecircuit is broken.

Inductive mode is intended for use when measuring inductiveloads. When measuring inductive loads it is necessary to wait forthe voltage to stabilise. This means that the measurement couldtake a few seconds or several minutes. The test leads are firmlyconnected to the item to be measured and the Test button ispressed. The instrument will pass a current through the sampleand wait for the voltage to stabilise. If possible the current will beincreased. This procedure will be repeated until the voltagedetected falls into the range 15 mV to 200 mV. The instrument willthen continue to take readings, which will gradually decrease tothe true value as the voltage stabilises further. The operatordecides when the result is stable and presses the Test button toterminate the test. Measurement is made with forward current only.

Unidirectional mode, on DLRO 10X only, applies a current inone direction only. This does not enable any standing emfs to benegated but speeds up the measurement process. Test startsautomatically when probes are connected.

APPLICATIONS

The needs for accurate low resistance measurement are wellknown and very diverse. They range through Goods Receivinginspection of components to ground bonding and welded joints.Typical applications include, but are not limited to, making d.c.resistance measurements of:

Switch and contact breaker resistance

Busbar and cable joints

Aircraft frame bonds and static control circuits

Integrity of welded joints

Inter-cell connections on battery systems up to 600 V peak

Quality control of resistive components

Transformer and motor winding resistance

Rail and pipe bonds

Metal alloys, welds and fuse resistance

Graphite electrodes and other composites

Wire and cable resistance

Transmitter aerial and lightning conductor bonding

The DLROs are light enough to be worn around the neck. Theyare also small enough to be taken into areas which werepreviously too cramped for easy testing.


Full Scale

1.9999 mΩ

19.999 mΩ

199.99 mΩ

1.9999 Ω

19.999 Ω

199.99 Ω

1999.9 Ω

Resolution

0.1 µΩ

1 µΩ

10 µΩ

100 µΩ

1 mΩ

10 mΩ

100 mΩ

Accuracy

±0.2% ±0.2µΩ

±0.2% ±2 µΩ

±0.2% ±20 µΩ

±0.2% ±0.2 mΩ

±0.2% ±2 mΩ

±0.2% ±20 mΩ

±0.2% ±0.2 Ω

Resistive

20 mV

20 mV

20 mV

20 mV

20 mV

20 mV

200 mV

Inductive

n/a

20 mV

200 mV

200 mV

200 mV

200 mV

200 mV

Resistive

10 A

1 A

100 mA

10 mA

1 mA

100 µA

100 µA

Inductive

n/a

1 A

1 A

100 mA

10 mA

1 mA

100 µA

Full Scale Volts Test Current

DLRO 10 DLRO 10X

Manual, Auto, Continuous, Manual, Auto, Continuous,

High Power High Power, Unidirectional

Fully Automatic Fully Automatic/Manual

<3s for forward & reverse current and to display average

41/2 digit seven segment LED

LED indication Large backlit LCD

Single cycle reversing d.c. ratiometric measurement -average result display.

±10%

<10 ppm per second

100 mΩ total for 10A operation irrespective of battery condition.

> 200 kΩ

Less than 1% ±20 digits additional error with 100 mV peak 50/60 Hz. on the potential leads. Warningwill show if hum or noise exceeds this level.

Real Time or from storage via RS232

700 tests

Up to 256 characters per test via integral alphanumeric keypad

7 Ah NiMH rechargeable

Typically 1000 x 10 A tests before recharge

Via External 90V - 260V 50/60 Hz charger or from 12 to 15V d.c. supply

2.5 hours to 90% capacity, 4 hrs for full charge

+5ºC to +45ºC (41ºF to 113ºF) at full specification

-10ºC to +50ºC (14ºF to 122ºF) at reduced accuracy

-30ºC to +70ºC (-22ºF to 158ºF)20ºC (68ºF)

<0.01% per ºC over range 5ºC to 40ºC

<0.01% per ºC from 5ºC to 40ºC (<0.006% per oF from 41ºF to 104ºF)

0ºC to +45ºC (32ºF to 113ºF)

+10ºC to +45ºC (50ºF to 113ºF)

90% RH @ 40ºC (104ºF) non-condensing

2000m (6500 ft) to full safety specifications

In accordance with EN61010-1 600V Category III

The instrument meets EN50081-1 and EN50082-1 (1992)

220 x 100 x 237 mm (8.6 x 4 x 9.5 in)

2.6 kg (5 3/4 lb.) including battery module.

Measurement: Mode:

Control:

Speed:

Display: Measurement:

Range and Safety:

Test Method:

Test Current: Accuracy:

Stability:

Maximum Lead Resistance:

Voltmeter input impedance:

Hum rejection:

Data: Transfer:

Storage:

Memo Field

Battery: Capacity:Life:

Recharge:

Charging Rate: Standard:

Temperature: Operation:

Storage:

Calibration:

Co-efficient:

Slow charging:Fast charging:

Humidity (max):

Altitude (max):

Safety:

EMC:

Dimensions:

Weight:

ORDERING INFORMATIONItem (Qty) Order No.DLRO 10 Digital Low Resistance Ohmmeter 6111-428

DLRO10X Digital Low Resistance Ohmmeter 6111-429

Complete with7 Ah NiMH battery module. 6340-101

DH4 Duplex handspikes (2),

one with indicator lights. 1.2m / 4 ft 6111-503

Battery charger for operation from 115/230 V .

50/60Hz supply. 6280-333

Cigar lighter adapter for battery charging. 6280-332

User guide. 6172-473

Warranty book. 6170-618

Optional Accessories at extra cost

Carrying case for DLRO10/10X

and all standard accessories. 6380-138

Carrying case for optional lead sets. 18313

Calibration Shunt,10 Ω, current rating 1 mA. 249000

Calibration Shunt, 1 Ω, current rating 10 mA. 249001

Calibration Shunt, 100 mΩ current rating 1A. 249002

Calibration Shunt, 10 mΩ current rating 10 A. 249003

Certificate of Calibration for Shunts, NIST CERT-NIST

Replacement tips for DH4, DH5 and DH6 handspikes.

Needle point 25940-012

Serrated end 25940-014

Optional Test Leads at extra cost

Duplex LeadsDH5 straight duplex handspikes (2).

One has indicator lights. 2.5m/8ft 6111-517

DH6 Duplex handspikes (2) suitable

for working on 600 V. systems. 2.5m/8ft 6111-518

Duplex Handspikes (2) with spring

loaded helical contacts. 2m/7ft 242011-7

2.5m/8ft 6111-022

5.5m/18ft 242011-18

6m/20ft 6111-023

9m/30ft 242011-30

Item (Qty) Order No.Straight Duplex Handspikes (2)

Heavy Duty with fixed contacts. 2m/7ft 242002-7

5.5m/18ft 242002-18

9m/30ft 242002-30

Duplex Heavy Duty 5cm (2")

C-Clamps. (2) 2m/7ft 242004-7

5.5m/18ft 242004-18

9m/30ft 242004-30

Duplex handspikes with replaceable

Needle Points 2m/7ft 242003-7

Duplex 1.27 cm (1/2 ")

Kelvin Clips. (2) gold plated 2m/7ft 241005-7

silver plated 2m/7ft 242005-7

Duplex 3.8 cm (11/2")

Kelvin Clips. (2) 2m/7ft 242006-7

5.5m/18ft 242006-18

9m/30ft 242006-30

Single LeadsSingle handspike (1) for

potential measurement. 2m/7ft 242021-7

5.5m/18ft 242021-18

9m/30ft 242021-30

Current clip (1) for current

connections. 2m/7ft 242041-7

5.5m/18ft 242041-18

9m/30ft 242041-30


Item 2C

R8228-5 - IMPULSE WINDING TESTER

Function:

Verification of the quality on electrical windings with control of the absence of short-circuits

Application:On any kind of winding with a minimum of 10 microHenry

inductance

Use:

Laboratory or small productions

Features: Low energy test without damaging the coil

4 kind of waveform comparison methodes

Up to 20 MSPS sampling rate

Multi-trigger mode programmable

Direct display of comparison results

Technical specifications Output impulse voltage : 500-5000V +/-3% +/-5V

Voltage control mode Normal : Voltage programmable on terminals when terminals

are open Contant : mantains voltage selected across the winding

indipendent of changes of the winding impedance Sampling rate : 20MSPS/50nsec - 10MSPS/100nsec

Sampling rate : 5MSPS/200nsec - 2.5MSPS/400nsec

Sampling rate : 1.25MSPS/800nsec - 625kSPS/1600nsec

Sampling rate : 312kSPS/3200nsec - 156kSPS/6400nsec

Resolution : 8 bits

Sampling points : 960 bytes

Input impedance : 10Mohm (resistive voltage divider)

Waveform measurement : Voltage, time, frequency

Area size comparison

Differential area comparison

Corona discharge

Differential phase comparison

Area size repetition accuracy : +/- 1%

Differential area repetition accuracy : +/- 1%

Detection output : PASS/FAIL display, Alarm

60 groups of standard waveforms can be stored in internal

non-volatile memory 800 groups in the USB flash memory (optional)

Interfaces: RS232-C, Handler, IEEE488, Scanner

3.Transformer Turn Ratio

Testing

Item 3A

DESCRIPTIONThe TTR300 Series of three-phase transformer turns ratiotest sets are designed to measure the turns ratio of power,instrument, and distribution transformers in a substation ormanufacturing environment. A rugged and robust designmakes these instruments well suited for use in a variety ofharsh environments. Our leads are specially designed toprovide the necessary flexibility needed in cold weather.

The TTR300 Series are ideal for use by power transformermanufacturers. Their unique testing procedures andstorage capability allows an operator to set up and testdifficult three-phase transformers (with multiple tapchangers and bushing CTs) in a fraction of the time than itused to take with other TTRs. This test also includes apass/fail limit of individual ratios.

The TTR300 Series also measure the phase deviation of thetransformer primary versus secondary. This quicklyindicates problems in the transformer such as partialshorted turns and core faults. This measurement is alsouseful in verifying phase errors in all types of PTs and CTs.

Each unit comes equipped with a remote-control switchfor single person testing. This allows the operator to testtransformers with LTCs very quickly.

The Series consists of four instruments:

TTR300 The TTR300 is designed to be completely remotecontrolled via a PC running PowerDB LITE (included) orPowerDB (full version) PC software applications. TheTTR300 is field upgradeable to the TTR310, TTR320 orTTR330.

Some of the features of the TTR300 are:

Field upgradeable to a model TTR310, TTR320 orTTR330 without compromise to calibration

Built-in capability for storing test results into internalmemory in an open XML data format via PowerDB LITE

Quickly download test results via RS-232 serial port

TTR®300 Series3-Phase Transformer Turns Ratio Test Sets

Stand-alone or remote-control operation

Accurately measures ratio, phase deviation

and exciting current

Field upgradeable without compromise to

calibration

Built-in capability for storing and downloading

test results in an XML format, via RS-232,

Ethernet or USB ports (depending on model)

Works in the presence of high interference/

high voltage

Highest ratio measurement (45,000:1);

highest accuracy (0.1%)

Displays % error vs. name plate with pass/fail

limits

TTR®300 SeriesThree-Phase Transformer Turns Ratio Test Sets

TTR330 shown

TTR300 — remote controlled “black box” unit


Also, with a simple interface to PowerDB LITE PC softwareapplication (included), the user can perform data analysisand trending of results.

The TTR320 includes the following features:

Fully automatic operation (stand-alone or remote-control)

Field upgradeable to a model TTR330 withoutcompromise to calibration

Graphical User Interface allows for automated setup andcontrol through easy-to-read ICON based screens

Built-in capability for storing test results, in an openXML format, to either internal memory or to an externalUSB storage device

Built-in RS-232 port and optional thermal spool-paperprinter allows for printing of test results, while in thefield, and without the use of an external computer

5.7” VGA bright color display

TTR310 — text-based LCD interface unit

TTR310 This unit features an easy-to-read, high-contrast LCD which can be seen in bright sunlight and provides the user interface for instrument set-up and test operation. The unit comes complete with the software application,PowerDB LITE.

The TTR310 has the ability to store test results, uploadresults to a PC (via RS232 serial port), and/or print them in the field via optional thermal paper printer, without theuse of an external computer.

Some of the features of the TTR310 consist of:

Fully automatic operation (either stand-alone or remote-control)

Field upgradeable to a TTR330 or TTR320 withoutcompromise to calibration

Built-in RS-232 port and optional thermal spool-paperprinter allows for printing of test results, while in thefield, and without the use of an external computer

Built-in capability for storing test results into internalmemory in an open data format for direct input intoExcel® or XML format via PowerDB LITE

TTR320 The TTR320 features a high contrast bright 5.7” full VGAcolor display can be seen in direct sunlight. Theinstrument employs a full QWERTY keyboard for enteringnameplate-type information. Communications ports areprovided in the form of RS-232, USB and Ethernet ports foreasy on-board printing, storage, and downloading of testresults.

TTR320 — graphical ICON based user interface unit

TTR330 shown testing a pad mount three-phase transformer

TTR330 The TTR330 offers a new user interface which allows theoperator to interact with the PowerDB ONBOARDsoftware system via full QWERTY and navigation keypadsas displayed on an 8.4” VGA bright-color screen. One ofthe primary benefits of this interface is that it displays theactual test form on the screen. An advanced feature of theTTR330 allows the user to customize these test forms viaoptional full-version PowerDB.

Other primary features of the TTR330 include threecommunications ports (two USB, one Ethernet). The USB“host” ports can be used for connecting directly to anoptional printer (to print full size 8.5” x 11” completed testforms) and for data storage to a USB memory device (forlater printing, analysis, archiving, and/or trending). TheEthernet port allows the TTR330 to interface (on a bi-directional basis) directly to a PC.

PowerDB™ ONBOARD Acceptance & Maintenance Test Data Management Software (Model TTR330only)The “PowerDB ONBOARD” logo means PowerDBsoftware is running on a computer embedded within theTTR330. This powerful feature provides the TTR330 with a common “User Interface” to minimize operator trainingand provides a seamless interface to the full PowerDB (PC version) application.

Easy-to-read on-screen test forms provide the userinterface for instrument set-up and test operation. Resultsare displayed against pass/fail nameplate limits and can bestored (either internally or to a USB storage device) in anopen XML data format.

The ONBOARD software also maintains a historical datafile so that, while in the field, current and past results canbe analyzed, compared, and displayed in trend chartswithout the need of an external computer. An 8.5” x 11”test form can also be printed in the field via an optionalUSB printer, and without the use of an external computer.

Built-in MemoryThe TTRs come equipped with sufficient internal memoryto store test results. The outcome of the results are basedon the model:

TTR310: stores up to 200 three-phase data sets in the fieldfor later retrieval. Test results can be printed on anoptional printer (using thermal spool paper) whenever ahard copy is desired, or the data can be downloaded to aPC for archiving, analysis, trending, and/or printing. Thesystem software allows entry of the transformeralphanumeric serial number, transformer type and tapinformation for each test performed.

TTR320: stores up to 100,000 data sets in the field forlater retrieval. Test results can be printed on an optionalprinter (using thermal spool paper) whenever a hard copyis desired, or the data can later be downloaded to a PC forarchiving, analysis, trending, and/or printing. Identificationof individual test readings is also easily done. The systemsoftware allows entry of the transformer alphanumericserial number, transformer type and tap information foreach test performed.

TTR330: stores up to 100,000 data sets in the field forlater retrieval. Test results can be printed on an optionalin-lid printer (using 8.5” x 11” thermal paper) whenever ahard copy is desired, or the data can later be downloadedto a PC for archiving, analysis and/or printing.Identification of individual test readings is also easily done.The system software allows entry of the transformeralphanumeric serial number, transformer type and tapinformation for each test performed.


The TTR330 offers the following:

Fully automatic operation (stand-alone or remote-control) with user interface via on-screen customizabletest forms

Integrated PowerDB ONBOARD allows for data analysisand trending while in the field without the use of anexternal computer

Built-in USB port and optional USB printer allows for8.5”x 11” test forms printing without the use of a laptop

Built-in capability for storing test results, in an openXML format, to either internal memory or to an externalUSB storage device

Full 8.4” VGA color display

PowerDB LITE™ Acceptance & Maintenance Test Data Management Software All four units in the TTR300 Series come complete, at noextra charge, with PowerDB LITE (a new powerful PCWindows® based software program). PowerDB LITE allowsthe operator to completely program a test routine, inadvance, for a transformer, save it under the transformerID number, and then recall it in the future as required.

Testing on the TTRs can be performed in a remote controlmanner, via PowerDB LITE. Once testing is complete onall of the instruments, results are easily downloaded to theexternal PC in an “open” XML data format. Theinstruments’ internal memory also maintains historical data-files so that, through interface to PowerDB LITE, currentand past results can be archived, compared, analyzed,displayed in trend charts, and compiled into Test Reports.

Control of the TTRs in this remote-control manner offersthe following benefits:

Easy to use interface between operator and instrument.

Problems such as PASS/FAIL are flagged visually using aRED highlight.

Easily recall transformer setups from a custom settingsmenu.

Quickly download results to the PC for completing atransformer test report.

PowerDB™ (full version) Acceptance &Maintenance Test Data Management SoftwareAs an enhancement over the PowerDB LITE software(described above), a powerful “full version” PowerDBsoftware is also available on the TTR300 Series as anoption. PowerDB LITE and the internal architecture of theTTR Series has a seamless interface to the full versionPowerDB, PC based software application.

Multiple data files (from multiple instruments) canautomatically be fed to PowerDB in order to generatecomprehensive asset analysis in the form of Reportscontaining table of contents, test data sheets, commentary,and deficiency summaries.

Electrical utilities who have invested in sophisticatedComputerized Maintenance Management Systems (CMMS)can easily link with the PowerDB software because itworks with a number of systems.

Turns Ratio Range and Accuracy8 V ac: ±0.1% (0.8 to 2000)

±0.25% (2001 to 4000)±0.35% (4001 to 8000)

40 V ac: ±0.1% (0.8 to 2000) ±0.15% (2001 to 4000)±0.3% (4001 to 10,000)±0.35% (10,001 to 25,000)

80 V ac: ±0.1% (0.8 to 2000)±0.15% (2001 to 4000)±0.25% (4001 to 10,000)±0.30% (10,001 to 45,000)

Resolution: 5 digit for all ratios

Printer InterfaceTTR300: Not applicableTTR310: RS-232 portTTR320: RS-232 portTTR330: USB

Computer InterfaceTTR300 and TTR310: RS-232 portTTR320 and TTR330: Ethernet

User InterfaceTTR300: Not applicableTTR310: 5.7 in., B&W display, text on-screen view,

numeric keypadTTR320: 5.7 in., full-color VGA, graphical icon on-screen view,

full QWERTY keypad and navigational pushbuttonsTTR330: 8.4 in., full-color VGA, test forms on-screen view,

full QWERTY keypad and navigational pushbuttons

Internal Data StorageTTR310: up to 200 data sets TTR320 and TTR330: up to 100,000 data sets

Communication/Control SoftwarePowerDB LITE and PowerDB (full version, optional)TTR330: PowerDB ONBOARD

Transformer Winding Phase RelationshipANSI C57.12.70-1978CEI/IEC 76-1:1993 and Publication 616:1978AS-2374, Part 4-1982 (Australian Standard)

Safety/EMC/VibrationMeets the requirements of IEC-1010-1, CE and ASTM D999.75

Temperature RangeOperating: 23° F to 122° F (-5° C to 50° C)Storage: -58° F to 140° F (-50° C to 60° C)

Relative Humidity0 to 90% noncondensing

Measuring Time8 to 20 seconds depending on mode of operation and type of transformer

Measurement MethodANSI/IEEE C57.12.90

Dimensions 8.5 H x 21.5 W x 13 D in. (216 H x 546.1 W x 330.2 D mm)

WeightInstrument only, not including leadsTTR300: 20 lbs (9.1 kg)TTR310: 23 lbs (10.4 kg)TTR320: 25 lbs (11.3 kg)TTR330: 25 lbs (11.3 kg)


APPLICATIONSThe TTR300 Series applies voltage to the high-voltagewinding of a transformer and accurately measures theresulting voltage from the low voltage winding. In additionto turns ratio, the units measure excitation current, phaseangle deviation between the high- and low-voltagewindings and percent ratio error.

Transformer Turns RatioTransformer turns ratio is the ratio of the number of turnsin the high-voltage winding to that in the low-voltagewinding. Complexity in the measured ratio versusnameplate ratio occurs with most three-phase powertransformers because multipliers such as √3 are required tomatch the measured ratio to the nameplate ratio. TheTTR300 Series automatically applies the multiplier in aform which allows the operator a direct comparison to thenameplate (or expected) ratio. The built-in calculatordisplays the % error versus nameplate for each tap andeach winding, without the need for a computer.

Exciting CurrentThe TTR provides accurate measurement of excitingcurrent (to 0.1 mA) which can help provide informationabout the condition of a transformer’s core. Unwantedcirculating currents or unintentional core grounds canincrease the exciting current and indicate a problem.

Phase Angle Deviation and its ApplicationThe phase angle deviation, displayed in either degrees(minutes) or radians, is the phase relationship between thevoltage signal applied to the high-voltage winding and thevoltage signal extracted from the low-voltage winding. Thephase deviation, together with ratio error, can be used as alow-cost method of verifying accuracy class of all types ofPTs and CTs at “zero burden.”

The phase deviation between the high and low side of atransformer is generally very small. If there is deteriorationor damage in the transformer core, however, the phasedeviation can change significantly. The three-phase TTRcan measure this phase relationship with the resolution of0.1 minutes (equal to 1/600 of a degree), which isnecessary to detect problems.

SPECIFICATIONS

Input Power120/230 V ac ±10%, single phase, 50/60 ±2 Hz 100 VA

Battery Operation (Optional)Inverter 12 V dc to 120 V/230 V ac for operation from vehiclebattery

Excitation Voltage8, 40, or 80 V rms, automatically or manually selected

Excitation Current Range and Accuracy0 to 500 mA, 3 digit resolution, ±(2% of reading + 1 digit)

Phase Deviation Range and Accuracy±90 degrees, 1 decimal point for the minutes display, 2 decimalpoints for the degree display, or for the centi-radian displayAccuracy: ±3 minutes


Field upgradeable/interchangeable to any other TTR in the Series without compromising calibration (patent pending)

Remote controllable

Works in the presence of high interference/high voltage

Displays % error vs. name plate with pass/fail limits

Measures the widest turns ratio range in the industry (45,000:1) and provides the highest accuracy (0.1%)

Enables operator to enter the ratio of transformer and all of its taps letting operator know immediately when a tap

is outside acceptable limits so problem can be flagged

Equipped with “Remote TEST” switch for single person testing, allowing the operator to test transformers with

“LTCs” very quickly

Measures phase deviation of the transformer primary versus secondary; quickly indicates problems in the

transformer such as partial shorted turns and core faults.Useful in verifying phase errors in PTs and CTs

Rugged, lightweight design ideal for a harsh field and substation environment

User selectable standards: ANSI, IEC, and Australian. Meets IEC 1010 and other standards such as CSA and UL

“Quick Test” mode provides a fast determination of turns ratio for single- and three-phase transformers

Units can be operated while in transit case

Leads can stay connected while in transit case

Printing of test results without the use of a computer N/A 4” thermal 4” thermal 8.5” x 11”spool paper spool paper thermal paper

SoftwarePowerDB LITE

“PowerDB ONBOARD” allows for operation of the unit through on-screen customizable test forms (patent pending)

Full version PowerDB Optional Optional Optional Optional

Communications port

Printer interface N/A RS-232 RS-232 USB

Internal data storage (data sets) N/A 200 100,000 100,000

External storage device N/A N/A USB USB

Computer interface RS-232 RS-232 Ethernet Ethernet

User interfaceDisplay type N/A 5.7” B&W 5.7” color VGA 8.4” color VGA

On-screen view N/A Text Graphical icons Test forms

Keypad N/A Numeric QWERTY QWERTY

TTR300 TTR310 TTR320 TTR330

FEATURES AND BENEFITS GUIDE




PowerDB software, 1st machine license, soft key DB1001

PowerDB, 1st machine license, USB dongle DB1001S

Calibration device (for TTR verification) 550555

3-ø lead set adapter to allow use of Megger TTR C/N 550503 lead set (30915-xxx) 37087

3-ø shielded test lead set, X and H winding, 30 ft (9.1 m) 37093

3-ø shielded test lead set, X and H winding, 50 ft (15 m) 37094

1-ø shielded test lead set, X and H winding, 30 ft (9.1 m) 37095

Inverter with 3 ft (0.91 m) cigarette adapter cord

12 V dc to 120 V ac, 60 Hz 35271-1

12 V dc to 120 V ac, 50 Hz 35271-3

12 V dc to 230 V ac, 60 Hz 35271-2

12 V dc to 230 V ac, 50 Hz 35271-4

TTR printer package for TTR300, TTR310, TTR320120 V, 60 Hz 35755-3

230 V, 50 Hz 35755-4

USB portable thermal printer for TTR330 36493

Thermal paper (8.5” x 11”) for P/N 36493 36809-1

Thermal paper (A4) for P/N 36493 36809-2

Replacement/spare battery pack for P/N 36493 37077

Transit case (for instrument, leads and accessories) 37009

Field Upgrade Kits

TTR330 interface panel 37089-1




Item (Qty) Cat. No.

Three-Phase TTR, remote controlled TTR300

Three-Phase TTR, stand alone or remote controlled TTR310

Three-Phase TTR, graphical user interface TTR320

Three-Phase TTR with PowerDB ONBOARD TTR330

Note: 120 V 50/60-Hz operation standard.For 230 V, 50/60-Hz operation Add -47 to Cat. No.


Canvas carrying bag for test leads 30915-211

Power supply cord, 8 ft (2.5 m) 17032-4

Ground lead, 15 ft (4.6 m) 4702-7

Hand-held TEST switch assy for remote operation 30915-220

PowerDB LITE DB0001

RS232 cable for connecting to a PCfor use with TTR300 and TTR310 35248

Ethernet cable for connecting to a PC for use with TTR320 and TTR330 36798

Bushing clips (6) MC7144

Transformer Vector Voltage Diagram Set (for ANSI, IEC, and AS Standards) for TTR310 35314

Instruction manuals

for TTR300 AVTMTTR300



For TTR330 AVTMTTR330

Item (Qty) Cat. No.

OPTIONAL ACCESSORY LEADSOur heavy duty leads feature right angle connectors for amore streamlined look and feel. The larger clips are usefulwhen clamping onto large transformer bushings.

Please specify catalog number for lead length/configurationwhen ordering.

Three-Phase TTR®

Transformer Turns Ratio Test Set



Test leads, 1-ø clip ends, H winding, 10 ft (3.1 m) 30915-506

Test leads, 1-ø clip ends,X winding, 10 ft (3.1 m) 30915-507

Test leads, 3-ø clip ends, H winding, 20 ft (6.2 m) 30915-524

TTR Printer Package

120 V, 60 Hz 35312-1

230 V, 50 Hz 35312-2

Includes Battery/line-powered serial thermal printer,printer interface cable, and shelf for mounting printer

Calibration Standard (for TTR verification) 550555

Inverter with 3 ft (0.91 m) cigarette adapter cord

12 V dc to 120 V ac, 60 Hz 35271-1

12 V dc to 120 V ac, 50 Hz 35271-3

12 V dc to 230 V ac, 60 Hz 35271-2

12 V dc to 230 V ac, 50 Hz 35271-4

Transit case (for instrument leads and accessories) 35313

Item (Qty) Cat. No.

120 V ac ±10%, 50 or 60 Hz, Three-Phase TTR 550503

230 V ac ±10%, 50 or 60 Hz, Three-Phase TTR 550503-47


Canvas carrying bag for test leads 30915-211

Power supply cord, 8 ft (2.5 m) 17032-4

Ground lead, 15 ft (4.6 m) 4702-7

3-ø shielded test leads, H winding, 10 ft (3.1 m) 30915-505

3-ø shielded test leads, X winding, 10 ft (3.1 m) 30915-504

Shielded extensions, H winding, 33 ft (10 m) 30915-503

Shielded extensions,X winding, 33 ft (10 m) 30915-502

Hand-held switch assy for remote operation 30915-220

ComLink software 35794-2

RS232 cable for connecting to a PC 35248

Bushing clips (6) MC7144

Transformer Vector Voltage Diagram Set (For ANSI, IEC, and AS Standards) 35314

Instruction manual AVTM550503

Item (Qty) Cat. No.

ISO STATEMENT

Registered to ISO 9001:1994 Reg no. Q 09250

Registered to ISO 14001 Reg no. EMS 61597

THREE_PHASE_TTR_DS_en_V12

SPECIFICATIONSInput PowerCat. No. 550503: 120 V ac ±10%, single phase, 50 ±2 Hz or 60 ±2 Hz, 100 VACat. No. 550503-47: 230 V ac ±10%, single phase, 50 ±2 Hz or 60 ±2 Hz, 100 VA

Battery Operation (Optional)Inverter 12 V dc to 120 V/230 V ac for operation from vehiclebattery.

Excitation Voltage8, 40, or 80 V rms, automatically or manually selected

Excitation Current Range and Accuracy0 to 500 mA, 3 digit resolution, ±(2% of reading + 1 digit)

Phase Deviation Range and Accuracy±90 degrees, 1 decimal point for the minutes display, 2 decimalpoints for the degree display, or for the centi-radian displayAccuracy: ±3 minutes

Turns Ratio Range and Accuracy8 V ac: ±0.1% (0.8 to 2000)

±0.25% (2001 to 4000)±0.35% (4001 to 8000)

40 V ac: ±0.1% (0.8 to 2000) ±0.15% (2001 to 4000)±0.3% (4001 to 10,000)±0.35% (10,001 to 25,000)

80 V ac: ±0.1% (0.8 to 2000)±0.15% (2001 to 4000)±0.25% (4001 to 10,000)±0.30% (10,001 to 45,000)

Resolution: 5 digit for all ratios

PC/Printer InterfaceRS232C port, 9-pin 9600 baud

DisplayLCD module, 256 x 128 dots (42 characters by 16 lines)

Test Result StorageInternal, nonvolatile memory for storing up to 200 sets of three-phase measured and calculated ratio, exciting current, phase, ratioerror, plus serial number and transformer type.

Communication/Control Software — ComLinkIncluded ComLink software for data storage, report printout anddownload of data to a PC, and control of the TTR via PC.



Temperature RangeOperating: 23° F to 122° F (-5° C to 50° C)Storage: -58° F to 140° F (-50° C to 60° C)

Relative Humidity0 to 90% noncondensing

Measuring Time8 to 20 seconds depending on mode of operation and type oftransformer.


Dimensions10.5 H x 17.5 W x 6.9 D in. (266.7 H x 444.5 W x 175.3 D mm)

WeightApprox. 16.5 lbs (7.5 kg), instrument only, not including leads

Item 3B

TTR™100Single-Phase Handheld TTR

Fully automatic; fast; easy-to-use;handheld; robust; lightweight

Battery powered with power-saving andshutdown function

Tests turns ratio, phase displacement,excitation current, vector group, windingresistance and polarity

Alphanumeric keyboard

RS232 for data transfer and printing

Stores 200 test results and 100 user-defined transformer test settings

Six user-selectable languages


DESCRIPTIONThe Megger TTR100 is an automatic single-phasehandheld, battery operated transformer turns ratio test setused to measure the turns ratio, excitation current, phasedisplacement, dc resistance and polarity of windings insingle- and three-phase distribution transformers (testedphase by phase), potential & current transformers, andtapped transformers. Deviations in the mentionedmeasurements will quickly indicate problems intransformer windings or in the magnetic core circuits.

The unique design of the TTR100 allows the user tooperate the test set while holding it in one hand. No othertransformer test set offers this capability. It effectivelyeliminates the user from having the kneel or bend over tooperate the instrument and speeds up testing time.

Realizing the extreme environments in which the TTR100must operate, special attention has been paid to making itextra rugged, with a high impact, shock resistant case, yetincredibly lightweight (3.3 lb). It weights less than anyother commercially available instrument on the market.

Its rugged and robust design makes this instrument wellsuited for use in a variety of harsh environments. TheTTR100 is particularly suited for testing in substations andtransformer-manufacturing environments where testingsingle and three-phase transformers can be performed.The TTR100 provides reliable results, helping the user indetermining the condition of the transformer under test. Itfeatures a high contrast LCD screen which can be seen inbright or ambient light.

The TTR100 comes equipped with specially designed leadswhich provide the necessary flexibility needed in allweather conditions.

This unit measures the highest turns ratio in the industrywith an accuracy of 0.1% or better and with the lowestexcitation voltage. No other instrument’s performance iscomparable that is commercially available today. Anotherexcellent feature of this TTR is the ability to accuratelymeasure phase deviation (in minutes or centiradians) ofthe transformer primary versus secondary. Thismeasurement is also useful in verifying phase errors in PTsand CTs.

The TTR100 features special software capabilities. It comesequipped with sufficient onboard memory to store up to200 test results (including test report header information)in the field for later retrieval, as well as 100 user-definedtransformer settings. Test results can be printed on anoptional serial printer whenever a hard copy is desired, orthe data can be downloaded to a PC. Identification ofindividual test readings is also easily done. The systemsoftware allows entry of the transformer alphanumericserial number, transformer type and tap information(numerical, alphabetical, or alpha-numerical) for each testperformed.

The TTR100 comes with a Windows® based softwareprogram that permits download of test data from theinstrument to a PC database. Data stored in the databasecan be retrieved at a later date and test reports can beprinted to assist in the preparation of management and/oranalysis reports. These reports are easily transmitted via e-mail.


APPLICATIONSThe proper operation of a transformer relies almostentirely on the electrical properties of its windings. Toensure continued proper operation, transformers are testedto verify that their electrical properties have not changedfrom design specifications. A TTR is an extremely usefulinstrument for testing transformer windings because it canlocate several types of problems within a single- or athree-phase transformer. It is also ideal to use for testing inmeter shops for the inspection of CTs and PTs. It candetermine the no-load accuracy of CTs and PTs and alsodetermine the need to further test faulty CTs and PTs.

The TTR100 applies voltage, with voltage ratio beingdirectly proportional to turns ratio, to the high-voltagewinding of a transformer and accurately measures theresulting voltage from the low voltage winding. In additionto turns ratio, the unit measures excitation current, phaseangle deviation between the high and low voltagewindings, percent ratio error, dc winding resistance andpolarity.

Transformer Turns RatioTransformer Turns Ratio is the ratio of the number of turnsin the high voltage winding to that in the low voltagewinding.

A Transformer Turns Ratio Test Set such as the TTR100 candirectly measure the ratio of single phase, as well as threephase transformers. Transformer ratio can change due toseveral factors, including physical damage from faults,deteriorated insulation, contamination and shippingdamage. If a transformer ratio deviates more than 0.5percent from the rated voltage ratio, it may not operatereliably. To measure small ratio changes such as this, theaccuracy of a Megger TTR100 is needed.

Excitation CurrentThe TTR100 is capable of measuring exciting current byapplying voltage to one of the transformers windings. Anaccurate measurement of exciting current can provideinformation about the condition of a transformer’s core.Unwanted circulating currents or unintentional groundscan affect the exciting current and indicate a problem.

Phase Angle DeviationThe phase angle deviation is the relationship between thevoltage signal applied to the high voltage winding and thevoltage signal extracted from the low voltage winding.

The phase deviation between the high and low side of atransformer is generally very small. However, the phasedeviation can change significantly if there is deteriorationor damage in the transformer core. The TTR100 canmeasure this phase relationship with the resolutionnecessary to detect a problem.

Additional information about a transformer’s electricalproperties can be found in the IEEE Standard Test Codefor Transformers, C57.12.90, or by contacting Megger’stechnical support group.

Winding ResistanceMeasuring the DC resistance of transformer windings willaid in identifying problems such as shorted or openwindings, as well as loose connections.

The Megger TTR100 can measure the DC resistance ofboth single phase and three phase transformer windings.

Transformer PolarityPolarity of a distribution transformer becomes of interest inorder to determine its proper connection within a powernetwork.

The Megger TTR100 will identify subtractive and additivepolarity of the single-phase distribution transformers.

FEATURES AND BENEFITS Faster, easier handheld operation. User no longer has tokneel or bend down to operate the instrument.

Powered by rechargeable battery, provides up to fifteenhours of field operation.

Report header information such as company name,substation name, transformer manufacturer, transformerratio, operator, temperature and %RH can be entered andsaved via the alphanumeric keypad.

Measures the widest turns ratio range in the industry(20,000:1) with the highest accuracy (±0.1%, 0.8 to 2000) ata low excitation voltage.

Enables the operator to enter the ratio of the transformerand all of its taps. This allows the operator to knowimmediately when a tap is outside the acceptable limits sothat problem taps can be easily identified.

Records ratio errors for bushing CTs to an accuracy of±0.1% nameplate. This reduces the need for additional testequipment and improves set-up time.

Measures the phase deviation (in minutes, degrees orcentiradians) of the transformer primary versus secondary.This quickly indicates problems in the transformer such aspartial shorted turns and core faults. This measurement isalso useful in verifying phase errors in all types of PTs andCTs.

Perfect for meter shops, the TTR100 can be used forinspection purposes by using it to determine the no-loadaccuracy of most CTs and PTs. It also can be used todetermine the need to further test potentially faulty CTsand PTs.

The TTR100 is ideal for use by transformermanufacturers. Its unique testing procedures and storagecapability allows an operator to set up and test single andthree-phase transformers (with multiple tap changers andbushing CTs) in minimal time.

A “Quick Test” mode provides a fast determination ofthe turns ratio, excitation current, phase angle deviation,and winding resistance in single- and three-phasetransformers and CTs. In addition, polarity is provided forCTs and single-phase transformers.

Displays all measured and calculated values for each testincluding ratio, excitation current, ratio error, phase angledeviation, transformer vector group, winding resistanceand polarity thus providing comprehensive and conclusivedata

Automatic self-calibration for each test.


Rugged, lightweight design ideally suited for a harshfield and substation environment.

Three user selectable standards: ANSI, IEC, andAustralian. Also meets IEC1010 as well as CE.

Six user selectable languages: English, French, German,Italian, Portuguese and Spanish.

SPECIFICATIONS

Type of PowerRechargeable NIMH battery pack, 3.6 V dc, 3800 mAh

Battery Life15 hours of field operation

Charger input voltage100-250 V ac, 50/60 Hz ±2 Hz Unit can be operated whilecharging. Charging time is approximately three hours

Optional charger sourceOptional inverter 12 V dc to 115 V ac for powering a charger fromvehicle battery (non CE marked)

Excitation Voltage8 V rms for testing distribution or power transformers, and PTs;1.5 V ac RMS, or 8 V ac RMS for testing CTs. The excitation voltage is switched automatically if excitationcurrent exceeds a preset value.

Test Frequency55 Hz internally generated providing a universal 50/60 Hz test set

Excitation Current Range0 to 100 mA, 4-digit resolution

Turns Ratio Range8 V ac: 0.8 to 20,000, 5 digit resolution (for transformers and PTtesting)1.5 V ac: 5.0 to 2200, 5 digit resolution (for CT testing)

Phase Deviation Range±90º, 1 decimal point for the minutes display, 2 decimal points forthe degree display, or for the centiradian display

Winding Resistance Range0 to 2000 Ω, 4 digit resolution

Transformer Vector Group1PH0 or 1PH6

Transformer PolarityAdditive or Subtractive

Current (rms) accuracy±(2% of reading + 1 digit)

Phase Deviation Accuracy±3 minutes

Turns Ratio Accuracy±0.1% (0.8 to 2000)±0.15% (2001 to 4000)±0.20% (4001 to 10,000)±0.25% (10,001 to 20.000)

Winding Resistance Accuracy±(10% of reading + 1 digit) for 10 Ω to 2000 Ω range±(10% ±1 mΩ) for 10 mΩ to 9.99 Ω range±(10% ±0.5 mΩ) for 0.1 mΩ to 9.99 mΩ range

PC/Printer InterfaceRS232C port, 9-pin, 57.6 Kbaud (19.2 Kbaud for the printer)

Display full graphicsLCD module, wide temperature range, 128 x 64 dots (21characters by 8 lines)

Test Result StorageInternal, nonvolatile memory for storing up to 200 sets of single-phase measured and calculated ratio, exciting current, phase, ratioerror, winding resistance, polarity, vector group, plus headerinformation (company, substation, transformer manufacturer,transformer rating, instrument serial number, temperature, relativehumidity, and operator name) In addition, up to 100 user-defined transformer settings can bestored.

Computer SoftwareIncluded software for downloading of data to a PC, data storageto database and report printout.

Test LeadsSupplied with one complete set of single-phase leads, 6 ft (1.8 m)in length



Temperature RangeOperating: -4º F to 131º F (-20º C to 55º C)Storage: -58º F to 140º F (-50º C to 60º C)

Relative humidityOperating: 0 to 90% noncondensingStorage: 0 to 95% noncondensing

Protective Devices High voltage side shorting relays, transient voltage suppressorsand gas surge voltage protectors

Measuring Time8 to 20 seconds for a single-phase distribution transformer


Dimensions9.5 H x 4.5 W x 1.875 D in. (241 H x 115 W x 48 D mm)

WeightApprox. 3.3 lbs (1.5 kg), instrument only, without leads

Protective Instrument Carrying CaseNeoprene case with carrying strap and attachable pouch foruniversal charger and 6 ft. (1.8 m) test leads, single-phaseconnection (two leads for the H winding and three leads for thesecondary winding with tap).


OPTIONAL ACCESSORIES Power Inverter It may be necessary to have aportable power source in thefield. A power inverter using avehicle’s battery can providethe energy to the batterycharger in order to power upthe TTR100. The optionalinverter can be connected tothe vehicle’s cigarette lighter.The inverter’s output provides a true sine wave rated todeliver 60 watts of ac power continuously or 75 watts ofpower for 5 minutes. It is also protected with features thatwill automatically shut off in case of under-voltage, over-voltage, and over-temperature. (Non CE marked.)

Test LeadsA set of 12 ft (3.6 m) testleads is available for testinglarger transformers (twoleads for the H windingand three leads for thesecondary winding withtap).

PrinterTest results, includingtransformer vector group, canbe documented using anoptional thermal printer whichis easily attached to the TTR.A sample test report is shownin Figure 1.

Battery Pack (not shown)A NIMH battery pack for use when additional testing timeis required. The battery pack can be charged in theTTR100 while it is in use or not.

Rated at 3.6 V dc, 3800 mAh

Transit Case (not shown)Rugged semi-hard padded case for storing/shipping theinstrument, all leads and other accessories.

MEGGER1-ph. TRANSFORMER TURN RATIO TESTER

Catalog No. TTR100

TRANSFORMER TEST REPORT

COMPANY: SOUTHWEST ENERGYSUBSTATION: HARDWOODMANUFACTURER: DELTA-STAR, ILTRANSFORMER RATING: 375 KVAAMBIENT TEMPERATURE: 78 FRELATIVE HUMIDITY: 83%TTR S/N: 200308001OPERATOR(S): MIKE BRIGHTCOMMENTS/NOTES:

TEST DATE (M/D/Y): 04/15/03 09:27TEST NO: 033TRANSFORMER ID: 3AG-872B/AD39AMH VOLTAGE, V: 13800X VOLTAGE, V: 240CALCULATED TURNS RATIO: 57.500

TEST VOLTAGE: 8 VTRANSFORMER POLARITY: SUBTRACTIVETRANSFORMER VECTOR GROUP: 1PH0

RATIO: N1 57.536 DEV. N1:0.06%PHASE N1 (min): -1.5 Rx12 (Ohm): 0.127

RATIO N2: 56.978 DEV. N2: -0.04%PHASE N2 (min): 0.7 Rx32 (Ohm): 0.119

Exc. I (mA): 0.12 RH (Ohm): 191.6

Figure 1: Sample Single-phase three-wire series connectiontransformer test report

Order a TTR100 configured to your specific application. To determine the catalog number, fill in the blanks below with thecorresponding number from the detailed information boxes.

Ordering Example:

To order a TTR100 for North American application, without a deluxe kit, and instruction manual in the English language, request catalog number TTR100-NA0-ENG TTR100 — N A 0 — E N G

To order a TTR100 for North American application, with a deluxe kit, and instruction manual in the English language, request catalog number TTR100-NA1-ENG TTR100 — N A 1 — E N G

Fill in these blanks with the corresponding letter or number.

TTR100 — X X X — X X X



Country

NA = North America

UK = United Kingdom

EU = European Union

(Determines power cord requirement)

Deluxe Kit Option

0 = No Kit

1 = Deluxe Kit, 120 V, 60 Hz printerpackage

2 = Deluxe Kit, 230 V, 50 Hz printerpackage

(Kit consists of TTR100, includedaccessories as well as all optionalaccessories, excluding Inverter P/N35973)

Instruction Manual

ENG = English

FRN = French

SPN = Spanish

Item (Qty) Cat. No.


Test Leads

"X" winding, 6 ft (1.8 m) 35502-511

"H" winding, 6 ft (1.8 m) 35502-521

PC interface cable 33147-18

Battery pack 35753

Universal battery charger 35757

Power cable for battery charger Determined by Country

Protective neoprene carrying case and accessory pouch 55-20008

Software for uploading test results to a PC 35794-2

Quickstart guide 55-20013

Instruction manual AVTMTTR100-XXX(XXX = language code)


Test Leads

"X" winding, 12 ft (3.6 m) 35502-510

"H" winding, 12 ft (3.6 m) 35502-520

Semi-hard fabric transport case 35788

Additional battery pack 35753

Inverter cigarette adapter with power cable, 12 V dc to 115 V ac, 60 Hz, non CE marked 35973

Printer package, including battery/line power serial thermal printer with paper, battery pack, battery charger, printer interface cable, 120 V, 60 Hz 35755-1

Printer package, including battery/line power serial thermal printer with paper, battery pack, battery charger, printer interface cable, 230 V, 50 Hz 35755-2

Additional printer paper (1 roll) 27705-1

Optional Accessories are ordered separately or with Deluxe Kit

Item 3C

TTR™25Handheld TTR

Single- and three-phase transformer testing

Fully automatic; fast; easy-to-use; robust; lightweight

Battery powered

Tests turns ratio, excitation current, and polarity

Simple, one-button operation

Quick-start guide on front panel

Operator-selectable languages


DESCRIPTIONThe Megger TTR25 is an automatic hand-held batteryoperated transformer turns ratio test set. It is used tomeasure the turns ratio, excitation current and polarity ofwindings in single- and three-phase distribution and powertransformers (tested phase by phase), potential & currenttransformers, and tapped transformers.

The unique design of the TTR25 allows the user to operatethe test set while holding it in one hand. It effectivelyeliminates the user from having to kneel or bend down tooperate the instrument and speeds up testing time.Realizing the extreme environments in which the TTR25must operate, special attention has been paid to making itextra rugged, with a high impact, shock resistant case, yetincredibly lightweight at a mere 870 g (1.9 lbs).

Its design makes this instrument well suited for use in avariety of harsh environments. The TTR25 is particularlysuited for testing in substations, transformer-manufacturingenvironments, and meter shops. It features a high-contrast,backlit LCD screen which can be seen in bright or ambientlight.

This unit measures a high turns ratio of 20,000:1 accuratelywith the lowest excitation voltage. The excellentrepeatability of the TTR25 helps the users to determine thecondition of transformers under test. It is designed forsimple, one button operation with the measured resultsdisplayed directly on the easy to read LCD or printed tothe optional printer. The TTR25 needs no additionalsoftware and comes ready to use complete out of the box.

APPLICATIONSThe proper operation of a transformer relies almostentirely on the electrical properties of its windings. Toensure continued proper operation, transformers are tested

to verify that their electrical properties have not changedfrom design specifications. A TTR is an extremely usefulinstrument for testing transformer windings because it canhelp locate several types of problems within single- andthree-phase transformers.

It it used to determine the no-load accuracy of CTs andPTs and also determine the need to further test faulty CTsand PTs. The TTR25 applies voltage to the high-voltagewinding of a transformer and accurately measures theresulting voltage from the low voltage winding. The ratioof voltages is directly proportional to turns ratio. Inaddition, the unit measures excitation current and polarity.

Transformer Turns RatioA Transformer Turns Ratio Test Set such as the TTR25 candirectly measure the turns ratio of single-phasetransformers as well as three-phase transformers.Deviations in these measurements will quickly indicateproblems in transformer windings and in the magneticcore circuits. Transformer ratio can change due to severalfactors, including physical damage from faults, deterioratedinsulation, contamination and shipping damage. If atransformer ratio deviates more than 0.5 percent from therated voltage ratio, it may not operate reliably. To measuresmall ratio changes such as this, the accuracy of a MeggerTTR25 is needed.

Transformer PolarityPolarity of a distribution transformer becomes of interest inorder to determine its proper connection within a powernetwork. The Megger TTR25 will identify normal (inphase) and reverse polarity of the single-phasetransformers.

Item (Qty) Cat. No.

Hand-held TTR25 TTR25


Combined test leads, "X/H" winding, 1.8 m (6 ft) 35938

Instruction manual AVTMTTR25

Electronic documents AVTDTTR25


Combined test leads, "X/H" winding, 3.6 m (12 ft) 35942

Combined test leads, “X/H” winding, 6 m (20 ft) 36013

Printer package including battery/line powerserial thermal printer with paper, battery packand charger, printer interface cable, 120V, 60Hz 35755-1

Printer package including battery/line powerserial thermal printer with paper, battery packand charger, printer interface cable, 230V, 50Hz 35755-2

Semi-hard fabric transport case 35788

Quick-guide overlay in Spanish, French, German and Portuguese 35945


FEATURES AND BENEFITS Fast, easy hand-held operation. No need to kneel or

bend down to operate the instrument.

Powered by six standard “AA” alkaline batteries; nocharger needed. Provides up to 12 hours of fieldoperation.

Measures turns ratio range of 20,000:1, with a highaccuracy (±0.1%, 0.8 to 2000) at a low excitation voltage.

Records ratio errors for bushing CTs to an accuracy of±0.1% nameplate. This reduces the need for additionaltest equipment and improves set-up time.

Perfect for meter shops, the TTR25 can be used forinspection purposes to determine the no-load accuracyof most CTs and PTs. It also can be used to determinethe need to test potentially faulty CTs and PTs.

Automatic self-calibration for each test.

User selectable languages: English, Spanish, German,French and Portguese.

SPECIFICATIONS

Type of PowerSix standard “AA” (IEC LR-6) alkaline batteries

Battery Life12 hours of field operation

Excitation Voltage8 V rms for testing distribution or power transformers and PTs;0.5, 1.5, or 8 V ac rms for testing CTs. The excitation voltage is switched automatically if excitationcurrent exceeds a preset value.

Test Frequency55 Hz internally generated providing a universal 50/60 Hz test set

Excitation Current Range0 to 100 mA, 4-digit resolution

Turns Ratio Range0.8 to 20,000, 5 digit resolution

Transformer PolarityNormal or reversed

Current (rms) accuracy(2% of reading + 1 digit)

Turns Ratio Accuracy0.1% (0.8 to 2000)0.15% (2001 to 4000)0.25% (4001 to 20,000)

Display full graphicsLCD module, adjustable back-lighting, wide temperature range,128 x 64 dots (21 characters by 8 lines)



Temperature RangeOperating: -20º C to 55º C (-5º F to 130º F) Storage: -50º C to 60º C (-55º F to 140º F)

Relative humidityOperating: 0 to 90% noncondensingStorage: 0 to 95% noncondensing

Protective Devices High voltage side shorting relay, transient voltage suppressors andgas surge voltage protectors

Measuring TimeLess than 5 seconds


Dimensions240 H x 115 W x 50 D mm (9.5 H x 4.5 W x 1.9 D in.)

WeightApproximately 1.3 kg (2.8 lb), including leads


Item 3D

SINGLE-PHASE TTR®

TRANSFORMER TURNS RATIO TEST SET

Used for testing single phase power anddistribution transformers

Design based on precision bridgemeasuring technique

Available in hand-cranked or line-operatedmodels

Unmatched accuracy (0.1%) in a portabledesign

DESCRIPTIONThe Single Phase TTR Transformer Turns Ratio Test Setmeasures the turns ratio and exciting current of windings inpower, potential and current transformers. Deviations in turnsratio readings indicate problems in one or both windings orthe magnetic core circuit.

The TTR test set aids in identifying:

Shorted coils

Open circuits

Incorrect connections

Internal faults or tap-changer defects in step regulators aswell as in transformers.

The single phase model is available in either hand-crankedor line-operated versions and measures highly sensitiveturns ratios of up to 129.99:1 with accuracy of 0.1%. Anoptional auxilary transformer extends the ratio range to329.99:1.

The TTR set operates on the principle that the voltage ratio of thetransformer at no load is practically equal to the true turnsratio.

The major source of error in a transformer is a primary imped-ance drop due to magnetizing current, which is kept to aminimum by excitation at a fraction of rated voltage. Byemploying a design that meets both of these conditions alongwith the use of a null balance system, the turns ratio of atransformer can be determined accurately.

When measuring the turns ratio of distribution and powertransformers, the accuracy is well within 0.1%.

APPLICATIONSThe single phase models are primarily used for testing single-phase power and distribution transformers, for low-ratioreadings up to 129.99:1, or up to 329.99:1 with an auxiliarytransformer.

They also can be used to test three-phase transformers byconnecting and testing each phase separately.

FEATURES AND BENEFITS Available in hand-cranked or line-operated models, theseunits provide unmatched accuracy (0.1%) in a portabledesign.

Rack-mounted model is suitable for routine productiontesting by transformer manufacturers or repair shops. This unitis line-operated.

Line-operated model for shop or field testing is packagedin a rugged, metal case.

Measures highly sensitive turn ratios up to 129.99:1. Anoptional auxiliary transformer extends this ratio range to329.99:1.

SINGLE-PHASE TTR®

Transformer Turns Ratio Test Set

SINGLE-PHASE TTR®

TRANSFORMER TURNS RATIO TEST SET


Range Dimensions

ModelPowerSource

Turn Exciting Accuracy WeightCAT.NO.

Ratio Current H x W x D

Single-phasefield sets

Hand-cranked 0 to 1 A**7.5 H x 14 W x 12 D in. 16 lb

550005189 H x 353 W x 302 D mm (7.3 kg)

Line* 0.001 to 12 H x 12 W x 30 D in. 26 lb550027

129.9990 to 5 A** 0.1% 300 H x 300 W x 756 D mm (11.8 kg)

Single-phaserack mounted

Line*10 H x 10.5 W x 19 D in. 22 lb

550022255 H x 267 W x 483 D mm (10 kg)

* 120 Va c, 50/60 Hz. To order 240 Va c, 50/60 Hz, add –47 to Cat. No. ** Divide by 5 switch for increased resolution

OPTIONAL ACCESSORIES

Auxiliary TransformerAn auxiliary transformerextends the ratio range ofsingle-phase models to329.99:1. Turns ratio is 100:1and 200:1, and is accurate towithin 0.1%.

The auxiliary transformerincludes all the necessary cablesfor connection to the TTR setand the transformer under test.

Dimensions8 H x 13 W x 10 D in. (203 H x 330 W x 254 D mm)

Weight: 13 lb (5.9 kg)

Calibration Reference TransformerCalibration reference transformers are available for bothsingle- and three-phase test sets. They provide a referencestandard for periodic calibration checks to document proofof calibration.

A Calibration Certificate ofTurn Ratio Accuracy traceableto the NIST is furnished witheach calibration referencetransformer, providing accura-cies of 0.05%.

Dimensions8 H x 14 W x 10 D in.

203 H x 356 W x 254 D mm

Weight: 11 lb (5.0 kg)

Item (Qty) Cat. No.Single-phase TTRHand-cranked 550005Line operated, 120 Vac, 50/60 Hz 550027Line operated, 240 Vac, 50/60 Hz 550027-47Rack-mounted, line, 120 Vac, 50/60 Hz 550022Rack-mounted, line, 240 Vac, 50/60 Hz 550022-47

Item (Qty) Cat. No.

Included AccessoriesCable assembly 19494

With C-clamps for X (low-voltage) winding,10 ft (3 m) [2]With spring clips for H (high-voltage) winding,13 ft (4 m) [2]

All cables are permanently connected to the test set.Instruction manual AVTM55JD

Optional AccessoriesAuxiliary transformer 550030Calibration reference transformer 550050

SPECIFICATIONSOutput

8 V, 50/60 Hz. Line-operated models supply up to 5 A for testing specialty power transformers having a high ratio and a low secondary voltage.

MeteringFour decade dials

Item 3E

(2008/2009)

Item Description

12B Dissolved Gas Analysis with Automatic Degassing unit According to IEC567 /ASTM 3612 type Top Toga GC.

13 Transformer Fault Indicator (Online Monitoring)

13A Transformer monitoring unit type Hydrocal1002 complete with Hydrosoft software for data transfer and data administration

13B Transformer monitoring unit type Hydrocal1003 as Hydrocal 1002 but with additional Water in oil/ moisture measurement.

14 High Voltage Lab for AC, DC and Impulse Testing can be provided on request.

15 Transformer Electrical Workshop

A complete transformer repair workshop including Winding / Rewinding Coil Winding Machines, Ovens, Essential Tools and other Accessories can be provided on request.

4.Capacitance +

Dissipation Factor (Tan

Delta) Test Sets

Item 4A

DELTA-2000 10 kV Automated Insulation Power Factor Test Set

Extremely easy to use, without anyextensive hardware or software setup

Designed to work in high interferenceswitchyards of up to 765 kV

Built-in capability for storing, printingand downloading test results

Rugged, portable design for field/shop shop use with automated control via thePowerDB™ software package

Optional HV reference capacitors (100 pF, 1000 pF) with 2% dissipationfactor, and a 10 nF TTR capacitor

Optional Priority Access package offeringexclusive services/support


DESCRIPTIONThe DELTA-2000 is a fully automatic 10 kV insulationpower factor test set designed for condition assessment ofelectrical insulation in high voltage apparatus, such astransformers, bushings, circuit breakers, cables, lightningarresters and rotating machinery.

This set has been designed to provide a comprehensiveAC insulation diagnostic test. Measurements are performedautomatically by the DELTA-2000, and results aredisplayed on a large graphical LCD. Measured quantitiesinclude voltage, current, power (loss), power factor andcapacitance. The operator has the option of correcting thecurrent and loss readings to their 2.5 kV or 10 kVequivalents. An optional 10 nF TTR capacitor in additionto two HV reference capacitors are also available.

The built-in tracking automatic interference suppressioncircuit ensures accurate and reliable test results undersevere electrostatic and electromagnetic interferenceconditions. This feature allows the performance of testmeasurements in energized switchyards of up to 765 kV.

The operator has the option of storing the test results onthe provided data key, or download directly to a PC orthe included thermal printer. A small printer mounting canbe installed inside the unit’s lid in lieu of the standardprinter that is included. The data key has storage capacityfor 127 sets of test results. Information stored on the datakey can be easily retrieved on a PC using the providedsoftware program and interface box.

In addition to performing insulation power factor tests, theDELTA-2000 can be used for measuring the excitationcurrent of transformer windings.

The Priority Access program provides specific guaranteedsupport to assure full utilization of the Megger DELTA-2000. The purchase of the program entitles the userfree services for one year from receipt of the unit.

FEATURES AND BENEFITS Fully automatic operation eliminates operator error and

reduces testing time.

Simplified operation procedure eliminates the need forextensive software or hardware setups.

Performs all standard ungrounded-specimen tests (UST)and grounded-specimen tests (GST), with or without aguard circuit.

Utilizing the automatic suppression circuitry achieveshigh accuracy measurement under severe electrostaticand electromagnetic interference conditions.

Two-piece design reduces size and weight of the systemand provides easier transportation.

Built-in self diagnostic and calibration check.

The operator has the option of measuring either thepower factor or dissipation factor (tan ∂).

Open-ground detector ensures proper grounding beforetest.

Interlock switches provide operator safety.

Built-in interface to the optional Resonating Inductor(Cat. No. 670600) to extend the capacitance measuringrange to 1µF at 10 kV.


Data key stores 127 sets of test results for retrieval andanalysis. Stored results can be easily transferred to a PCusing the provided interface box.

Optional printer mounting inside unit’s lid instead ofstandard thermal printer.

Optional TTR capacitor (10 nF) in addition to two HVreference capacitors (100 pF and 1000 pF) with a 2%dissipation factor.

RS-232 serial interface for downloading the test results to aPC.

Includes a battery/line operated printer for a hard copyof the test results which are date and time stamped.

Optional bar code wand and PC software for recordingan alphanumeric test identification in the field.

Optional Priority Access package with exclusive services.

Optional Oil Test Cell for testing insulating fluids up to 10 kV.

Optional Calibration Standard verifies proper operationand accuracy of the test results.

Interfaces with a PowerDB™ software package thatperforms extensive information processing, data trendingand report generation.

SPECIFICATIONS

Input120 V ±10%, 1 , 60 Hz, 1440 VA

Output0 to 12 kV, continuously adjustable, 100 mA continuous, maximum200 mA (15 minutes on, 15 minutes off, maximum 8 tests). Thepower supply capacity can be expanded to 4 Amps using theoptional Resonating Inductor, catalog number 670600.

Accuracy

Voltage(RMS) ±(1% of reading + 1 digit)

Current(RMS) ±(1% of reading + 1 digit)

Capacitance±(0.5% of reading + 2 pF) in UST mode ±(0.5% of reading + 6 pF) in GST mode

Measuring Ranges

Voltage250 V to 12 kV, 10 V resolution. Minimum recommended voltage is 500 V.

Current0 to 5 Amps, 1µA maximum resolution. The measurement can becorrected to either 2.5 kV or 10 kV equivalents.

Capacitance1 pF to 1.1 µF, 0.01 pF maximum resolution.

Power Factor0 to 90%, 0.01% max. resolution.

Watt-loss0 to 2 kW, actual power, 0 to 100 kW when corrected to 10 kVequivalent. 0.1 mW maximum resolution. The measurement can becorrected to either 2.5 kV or 10 kV equivalents.

Data Keys with PC interface box and standard thermal printer

Power Factor±(2% of reading + 0.05%)

Watt-loss±(2% of reading + 1mW)

MeasurementThe following seven test modes are available, using the blue andred measuring leads, and can be selected by the operator:

UST: Ground Red, Measure BlueUST: Ground Blue, Measure RedUST: No Ground, Measure to both Red and BlueGST: No GuardGST: Guard Blue, Ground RedGST: Guard Red, Ground BlueGST: Guard Red, and Blue, No GroundingUST: Ungrounded Specimen TestingGST: Grounded Specimen Testing

Test FrequencySame as line frequency

Interference SuppressionAvailable Suppression Methods1. Operator selectable automatic forward/reverse measurement

averaging. 2. Operator selectable automatic tracking interference cancellation.

Safety QualificationsThe test set meets the requirements of both the IEC-1010 and theCE mark specifications. The test set also meets the shock andvibration requirements of the ASTM D999.75 standard.

Environment

TemperatureOperating: 32 to 122° F ( 0 to 50° C), Storage: -58 to +140° F (-50 to +60° C)

Relative HumidityOperating: 0 to 90% non-condensingStorage: 0 to 95% non-condensing

Dimensions

Control Unit15 H x 22 W x 16 D in.(381 H x 559 W x 406 D mm)

High Voltage Unit15 H x 22 W x 16 D in.(381 H x 559 W x 406 D mm)

WeightControl Unit: 74 lb (33kg)High Voltage unit: 63 lb (29 kg)Cables: 35 lb (16 kg)


Optional bar code wand for recordingan alphanumeric test identification

The optional Oil TestCell is used fortesting insulatingfluids up to 10 kV

The optional CalibrationStandard traceable to the NIST for quick operating orcalibration checks of test setbridges calibrated in wattsloss or in dissipation factor

The optional ResonatingInductor expands thecapacitance range of theDELTA-2000


The optional accessory kit, C/N 670501 includes mini bushing tapconnectors, hot collar straps, temperature/humidity meter, .75” bushingtap connector, 1” bushing tap connector, “J” probe bushing tapconnector, 3-ft non-insulating shorting leads, 6-ft non-insulating shorting leads

Optional printer mounted in lid

Optional capacitor kit includes carry case, TTR capacitor (left), and 2reference capacitors (center). Also shown are 2 connectors (right) thatwill work with the capacitors and are supplied with the DELTA-2000 unit.


Item [Qty] Cat. No.

DELTA-2000, 10 kV Automated Insulation Test Set

120 Vac, 60 Hz 672001

120 Vac, 50 Hz 672001-44

240 Vac, 60 Hz 672001-45

240 Vac, 50 Hz 672001-47


High voltage lead: 70 ft (21.4 m), double shielded, interchangeable hook or clip termination 30012-5

Low voltage leads: 70 ft (21.4 m), shielded

Color-coded Red 25572-1

Color-coded Blue 25572-2

Ground lead: 15 ft (4.6 m) 4702-7

120 volt Power cord: [1] 8 ft (2.5 m) 17032-4


Safety hand switch, Interlock #1: 70 ft (21.4 m) 34460-021


Interconnect cables: For connecting the controland high voltage units, two 5 ft (1.5 m) 27978, 27979

Foam transit case: two, foam padded, heavy-dutycases for control and high voltage unit 35582

Programmed battery/line power serial thermal printer 33842

AC 120 V adapter 33841-2


Data keys [2] 30603

Data key interface box, 120 volt 30606

Data key interface box, 240 volt 30606-1

Data key download software 35227

Instruction and application manual AVTM672001A

ORDERING INFORMATIONItem [Qty] Cat. No.


Printer mounted in lid (in lieu of std. printer) Add -39

HV TTR capacitor (10 nF, 10 kV) 36610

HV reference capacitor (100 pF, 10 kV) 36610-1


Carry case for capacitors 36610-CC

Capacitor kit (TTR cap, 2 ref caps, carry case) 36610-KIT

Resonating inductor 670600

Calibration standard 670500-1

Oil test cell 670511

Hot collar belts [3] 670505

Bushing tap connectors [2] 670506

Transit cases for cables (heavy-duty, foam-padded) 218744

Transit cases for calibration standard (heavy-duty, foam-padded) 670635

Bar code wand and software 34705

RS-232 cable 34675-1

High voltage lead, 25 ft (7.6 m) 30012-8

Accessory kit: mini bushing tap connectors [2], hot collar straps [3], temperature/humidity meter [1], .75” bushing tap connector [1], 1” bushing tap connector [1], “J” probe bushing tap connector [1], 3-ft non-insulating shorting lead [3], 6-ft non-insulating shorting lead [3] 670501

Priority Access package D2K-P-ACCESS

PowerDB™ Acceptance & Maintenance Test Data Management SoftwareThe DELTA-2000 is controlled and automated by thePowerDB management system, a powerful softwarepackage providing data management for acceptance andmaintenance testing jobs. Customer/contract information isquickly sorted and searched. Opening a specific recordshows detailed information such as type of service, orderdate, sales contact, and invoice information. Jobinformation can be transferred between field-use databasesand a master database. Job/Device Productivity Reportsaid in bidding future jobs as well as personnel evaluation.


The package also provides test documentation andtrending, report generation and a number of other optionaladd-ons that are described in the Megger PowerDB datasheet

Data entry and automated control of Megger DELTA-2000

ISO STATEMENTRegistered to ISO 9001:2000 Cert. no. 10006.01

DELTA2000_DS_en_V13

Megger is a registered trademark

Item 4B

DELTA-3000 10 kV Automated Insulation Power Factor Test Set with “PowerDB OnBoard”

Integrated PowerDB software packageallows for automated control without theuse of a laptop

Extremely easy to use, without anyextensive hardware or software setup

Rugged, portable unit for field/shop useand designed to work in high interferenceswitchyards of up to 765 kV

Built-in capability for storing, printingand downloading test results

Optional HV reference capacitors (100 pF, 1000 pF) with 2% dissipationfactor, and a 10 nF TTR capacitor

Optional Priority Access package offeringexclusive services/support


DESCRIPTIONThe DELTA-3000 is a fully automatic 10 kV insulationpower factor test set designed for condition assessment ofelectrical insulation in high voltage apparatus, such astransformers, bushings, circuit breakers, cables, lightningarresters and rotating machinery. Its integrated PowerDBsoftware package allows the user easy accessibility to thefield without having to carry a laptop.

The DELTA-3000 allows for direct data feed into PowerDBfor automatically generating test reports such as table ofcontents, data sheets, deficiency and comments reports. Alldata can be saved in an XML file with all historical data.This allows the user to view the previous year’s test sheetor to trend specific test points. If a user also has a fulllicense of PowerDB, test sheets can be modified anddownloaded to the instrument to customize theinstrument’s personality and procedures in order to meetcustomer needs.

The unit’s intuitive and easy-to-use interface allows theuser to configure test sheets and pop-up test procedures. AQWERTY keyboard makes it simple for entering allnameplate and location information. USB drive support isalso included in the unit with two exposed USB ports.

The test set is designed to provide a comprehensive ACinsulation diagnostic test. Measurements are performedautomatically by the DELTA-3000, and results are displayedon a large graphical LCD. Measured quantities includevoltage, current, power (loss), power factor andcapacitance. The operator has the option of correcting thecurrent and loss readings to their 2.5 kV or 10 kVequivalents. Information can be downloaded directly to aPC or printer. An optional 10 nF TTR capacitor in additionto two HV reference capacitors are also available.

The built-in tracking automatic interference suppressioncircuit ensures accurate and reliable test results undersevere electrostatic and electromagnetic interferenceconditions. This feature allows the performance of testmeasurements in energized switchyards of up to 765 kV.

In addition to performing insulation power factor tests, theDELTA-3000 can be used for measuring the excitationcurrent of transformer windings.

The Priority Access program provides specific guaranteedsupport to assure full utilization of the Megger DELTA-3000. The purchase of the program entitles the userfree services for one year from receipt of the unit.


FEATURES AND BENEFITS “PowerDB OnBoard” software allows for automated

control and the option of saving data (informationprocessing, data trending, report generation) in an XML file with all historical data.

QWERTY keyboard for quick information input.

USB drive support for data download.

Fully automatic operation eliminates operator error andreduces testing time.

Simplified operation procedure eliminates the need forextensive software or hardware setups.

Performs all standard ungrounded-specimen tests (UST)and grounded-specimen tests (GST), with or without aguard circuit.

Utilizing the automatic suppression circuitry achieveshigh accuracy measurement under severe electrostaticand electromagnetic interference conditions.

Two-piece design reduces size and weight of the systemand provides easier transportation.

Built-in self diagnostic and calibration check.

The operator has the option of measuring either thepower factor or dissipation factor (tan ∂).

Open-ground detector ensures proper grounding beforetest.

Interlock switches provide operator safety.

Built-in interface to the optional Resonating Inductor(Cat. No. 670600) to extend the capacitance measuringrange to 1µF at 10 kV.

Optional TTR capacitor (10 nF) in addition to two HVreference capacitors (100 pF and 1000 pF) with a 2%dissipation factor.

Optional USB bar code scanner to record andalphanumeric test identification in the field.

Optional Priority Access package with exclusive services.

Optional Oil Test Cell for testing insulating fluids up to 10 kV.

Optional Calibration Standard verifies proper operationand accuracy of the test results.

The DELTA-3000, available in either 120 or 240 V ac/50 or 60 Hz, includes the Control Unit (top) and High Voltage Unit (bottom)

Close-up of DELTA-3000 panel


SPECIFICATIONS

Input120 V ±10%, 1 , 60 Hz, 1440 VA

Output0 to 12 kV, continuously adjustable, 100 mA continuous,maximum 200 mA (15 minutes on, 15 minutes off, maximum 8tests). The power supply capacity can be expanded to 4 Ampsusing the optional Resonating Inductor, catalog number 670600.

Accuracy

Voltage(RMS) ±(1% of reading + 1 digit)

Current(RMS) ±(1% of reading + 1 digit)

Capacitance±(0.5% of reading + 2 pF) in UST mode ±(0.5% of reading + 6 pF) in GST mode

Measuring Ranges

Voltage250 V to 12 kV, 10 V resolution. Minimum recommended voltage is 500 V.

Current0 to 5 Amps, 1µA maximum resolution. The measurement can becorrected to either 2.5 kV or 10 kV equivalents.

Capacitance1 pF to 1.1 µF, 0.01 pF maximum resolution.

Power Factor0 to 90%, 0.01% max. resolution.

Watt-loss0 to 2 kW, actual power, 0 to 100 kW when corrected to 10 kVequivalent. 0.1 mW maximum resolution. The measurement canbe corrected to either 2.5 kV or 10 kV equivalents.

Power Factor±(2% of reading + 0.05%)

Watt-loss±(2% of reading + 1mW)

MeasurementThe following seven test modes are available, using the blue andred measuring leads, and can be selected by the operator:

UST: Ground Red, Measure BlueUST: Ground Blue, Measure RedUST: No Ground, Measure to both Red and BlueGST: No GuardGST: Guard Blue, Ground RedGST: Guard Red, Ground BlueGST: Guard Red, and Blue, No GroundingUST: Ungrounded Specimen TestingGST: Grounded Specimen Testing

Test FrequencySame as line frequency

Interference SuppressionAvailable Suppression Methods1. Operator selectable automatic forward/reverse measurement

averaging. 2. Operator selectable automatic tracking interference cancellation.

Safety QualificationsThe test set meets the requirements of both the IEC-1010 and theCE mark specifications. The test set also meets the shock andvibration requirements of the ASTM D999.75 standard.

Environment

Temperature Operating: 32 to 122° F ( 0 to 50° C), Storage: -58 to +140° F (-50 to +60° C)

Relative HumidityOperating: 0 to 90% non-condensingStorage: 0 to 95% non-condensing

Dimensions

Control Unit16 H x 22 W x 16 D in.(406 H x 559 W x 406 D mm)

High Voltage Unit16 H x 22 W x 16 D in.(406 H x 559 W x 406 D mm)

WeightControl Unit: 74 lb (33kg)High Voltage unit: 63 lb (29 kg)Cables: 35 lb (16 kg)

The optional Resonating Inductor expands the capacitance rangeof the DELTA-3000


The optional accessory kit, C/N 670501 includes mini bushing tapconnectors, hot collar straps, temperature/humidity meter, .75” bushingtap connector, 1” bushing tap connector, “J” probe bushing tapconnector, 3-ft non-insulating shorting leads, 6-ft non-insulating shorting leads

Optional capacitor kit includes carry case, TTR capacitor (left), and 2 reference capacitors (center). Also shown are 2 connectors (right) thatwill work with the capacitors and are supplied with the DELTA-3000 unit


The optional Oil Test Cell, C/N 670511, is used for testing insulatingfluids up to 10 kV

The optional CalibrationStandard traceable to the NIST for quick operating orcalibration checks of test setbridges calibrated in wattsloss or in dissipation factor

PowerDB™ Acceptance & Maintenance Test DataManagement SoftwareThe “PowerDB OnBoard” logo means PowerDB softwareis running on a computer embedded within theinstrument. This gives the interface for new Meggerinstruments a common “look and feel.” The instrument hasa full QWERTY keyboard for entering nameplate, locationinformation, test configuration and annotation.

The user interface is intuitive and the printed results matchthe format of these screens. (What you see is what youget.) The software maintains a history of results for eachpiece of equipment tests so past results can be displayedin trend charts. Data is stored in an open format XML datafile. These files can be opened on a PC with PowerDB Liteto view or print the test results.

Multiple data files can automatically be fed to a fullversion of PowerDB in order to generate documentationwith a table of contents, test data sheets, comment anddeficiency summaries. PowerDB can also be used tocustomize the test sheets and configuration screens usedby the instruments.

The DELTA-3000 is controlled and automated by thePowerDB management system, a powerful softwarepackage providing data management for acceptance andmaintenance testing jobs. Customer/contract information isquickly sorted and searched. Opening a specific recordshows detailed information such as type of service, order

Data entry and automated control of Megger DELTA-3000


date, sales contact, and invoice information. Jobinformation can be transferred between field-use databasesand a master database. Job/Device Productivity Reportsaid in bidding future jobs as well as personnel evaluation.


The package also provides a number of other optionaladd-ons that are described in the PowerDB data sheetavailable on the Megger website www.megger.com.


Item [Qty] Cat. No.

DELTA-3000, 10 kV Automated Insulation Power Factor Test Set with “Power DB Onboard”

120 Vac, 60 Hz 673001

120 Vac, 50 Hz 673001-44

240 Vac, 60 Hz 673001-45

240 Vac, 50 Hz 673001-47


High voltage lead: 70 ft (21.4 m), double shielded, interchangeable hook or clip termination 30012-5

Low voltage leads: 70 ft (21.4 m), shielded

Color-coded Red 25572-1

Color-coded Blue 25572-2

Ground lead: 15 ft (4.6 m) 4702-7





Interconnect cables: For connecting the controland high voltage units, two 5 ft (1.5 m) 27978, 27979

Foam transit case: two, foam padded, heavy-dutycases for control and high voltage unit 35582



Instruction and application manual AVTM673001

ORDERING INFORMATIONItem [Qty] Cat. No.


HV TTR capacitor (10 nF, 10 kV) 36610



Carry case for capacitors 36610-CC

Capacitor kit (TTR cap, 2 ref caps, carry case) 36610-KIT

Resonating inductor 670600

Calibration standard 670500-1

Oil test cell 670511

Hot collar belts [3] 670505

Bushing tap connectors [2] 670506

Transit cases for cables (heavy-duty, foam-padded) 218744

Transit cases for calibration standard (heavy-duty, foam-padded) 670635

Bar code scanner 36528

High voltage lead, 25 ft (7.6 m) 30012-8

Accessory kit: mini bushing tap connectors [2], hot collar straps [3], temperature/humidity meter [1], .75” bushing tap connector [1], 1” bushing tap connector [1], “J” probe bushing tap connector [1], 3-ft non-insulating shorting lead [3], 6-ft non-insulating shorting lead [3] 670501

Priority Access package D2K-P-ACCESS


5.CT / PT & Meter Testing

Item 5A

MCTT-10Current Transformer Tester

Performs saturation and ratio tests on CTsusing the voltage-comparison method

Tests bushing CTs mounted insidetransformers or switchgear

Eliminates the need for large PrimaryInjection Test Systems to test CTsaturation and ratio

Saturation and ratio tests performedwithout changing test lead connections

Overload and short-circuit protection


DESCRIPTIONThe MCTT-10 test set is a portable unit for performingsaturation and ratio tests on current transformers using thevoltage-comparison method. Model MCTT-10 provides avariable voltage output and precision instrumentation fortesting single and multi-ratio CTs. All tests, saturation andratio – can be performed without changing any leads.Current transformers can be tested in their equipmentconfiguration, such as being mounted in transformers, oilcircuit breakers or switchgear. It is necessary for theequipment to be totally isolated from the electrical systemprior to testing.

Saturation and ratio tests are critical to ensure properelectrical system reliability. Saturation tests are performedon CT’s to make sure that when a fault occurs the propersecondary current signals are delivered to the protectivedevices. If a CT does not deliver proper secondarycurrent signals to a protective device because of coresaturation, it is probable that the protection scheme willnot operate correctly. A CT ratio test is performed toensure that the secondary current signals are proportionaland correct, in relation to the primary current.

APPLICATIONS

Saturation TestMCTT-10 provides a variable voltage output and digitalinstrumentation for measuring the excitation voltage andexcitation current, that results as the voltage applied to theCT under test is increased. As the CT under test begins tosaturate, a large increase in current will be detected for asmall increase in voltage.

Ratio TestThe ratio test is performed by comparing a voltage appliedto the secondary winding to the resulting voltageproduced on the primary winding. For example, if 1 voltper turn is applied to the secondary winding, the voltagepresent on the primary winding will be 1 volt. Morespecifically, if 120 volts were applied to the secondary of a600/5 current transformer (120:1 ratio), 1 volt will bepresent on the primary winding.

FEATURES AND BENEFITS The MCTT-10 utilizes the voltage comparison method.

This provides the user wth the ability to measure the CTratio without the heavy and large equipment needed totest a CT ratio using the current method. Many of thedevices using the current-comparison method exceed 100 lbs (45 kg). The MCTT-10 is only 37 lbs (16.8 kg).

A RUN/HOLD switch freezes readings on instrumentswhen switched to the HOLD position. This permits theuser to freeze all the MCTT-10 meters for simultaneousreadings.

A low range of 40 volts is provided for CTs that saturateat low voltages. A low voltage output range permits theMCTT-10 to test low saturation CT’s with the appropriateresolution.

The unit provides a high range of 1000 volts. Thisallows the MCTT-10 to test nearly all protection CT’swith high saturation knee points.

A zero-start interlock is incorporated in the unit. Thisminimizes the possibility of energizing the CT test with asudden high voltage, while under test.


SPECIFICATIONS

Input115 V +10/-5%, 1 , 50/60 Hz OR 230 V +10/-5%, 1 , 50/60 Hz

OutputContinuously variable in four ranges:0 to 40 V at 1.5 A max0 to 150 V at 1.5 A max0 to 600 V at 1.5 A max0 to 1000 V at 1.0 A max (5 min on, 15 min off)

Instrumentation

VoltmetersTwo 41/2 digit, auto ranging

Solid-state InstrumentsRanges: 0.0000 to 1.9999/19.999/199.99/1000 VAccuracy: ±0.25% of reading, ±1 digit for 1 to 1000 V; ±1% of reading ±1 digit for 0.2 to 1 V

AmmeterOne 41/2 digit

Solid-state InstrumentRange: 0.0000 to 1.9999 AAccuracy: ±0.85% of reading, ±1 digit

EnclosureThe unit is housed in a high-strength, molded suitcase-typeenclosure with carrying handle and removable cover. Storagespace is provided for test leads.

Dimensions9.9 H x 14.1 W x 11.9 D in.(251 H x 357 W x 287 D mm)

Weight37 lbs (16.8 kg)

Connections for performing saturation, ratio and polarity tests

X1-X5

BUSHING CT'S

H VOLTS

H1

X1

H2

X2

X VOLTS

X AMPERES

OFF

THERMAL O/I

1000

600150

40

HOLDRUN

DISPLAY

FINE VOLTAGE CONTROL

MCTT-10

POWER

MAIN CB

CURRENT TRANSFORMER TESTER

MAIN VOLTAGE CONTROL

OFF

ON

1000

OUTPUT RANGE

1000

!

Item (Qty) Cat. No.

Model MCTT-10115 volt input 50/60 Hz MCTT-10-115230 volt input 50/60 Hz MCTT-10-230


Test LeadsLead, Red, 200cm CAT III (2 qty) 684022

Lead, Black, 200cm CATIII (2 qty) 684023

Alligator Clip, Red, CATIII (2 qty) 684006

Alligator Clip, Black, CATIII (2 qty) 684007

Line Cord (1 qty) Model MCTT-10-115 6828

Line Cord (1 qty) Model MCTT-10-230 15065

Instruction Manual 710019


Technical Specifications

Current transformers

Nominal currents of the CT to be tested (X) 5 A and 1 A

Nominal Current of the standard CT (N)v 5 A

Working range 1 ... 200% of nominal current

Frequency 50 and 60 Hz

Uncertainty of ratio measurement 100 ppm 3% of reading

Uncertainty of phase measurement 100 rad 3% of reading

Inherent burden N-Side 0.1

Inherent burden X-Side 50m /5A , 0.55 /1A

Potential transformers

Nominal voltage of the PT to be tested (X) 40 ... 140 V with factors 1, ½, 1/3, 1/ 3

Nominal voltage of the standard PT (N) 100 V

Working range 1 ... 200% of nominal voltage


Uncertainty of ratio measurement ± 100 ppm ± 3% of reading

Uncertainty of phase measurement ± 100 mrad ± 3% of reading

Inherent burden of X- and N-Side 25 k (0.4 VA/ at 100V)

Electronic current transformers

Nominal voltage of the CT to be tested (X) 400 mV ... 4 V

Nominal Current of the standard CT (N)v 5 A

Working range 1 ... 200% of nominal current




Inherent burden N-Side 0.1

Inherent burden X-Side 1M

Electronic voltage transformers

Nominal voltage of the standard PT (N) 100 V

Nominal voltage of the PT to be tested (X) 1 ... 8V with factors 1, ½, 1/3, 1/ 3

Working range 1 ... 200% of nominal voltage

Frequency 50 und 60 Hz



Inherent burden N-Side 25 k (0.4 VA/ at 100V)

Inherent burden X-Side 1 M

Reference conditions

temperature 23° C ± 2°

humidity 45 ... 75%

altitude (pressure) 101.3 kPa

Rated range of use

according IEC 359

temperature 5° C ... 40° C

humidity, non condensing 20 ... 95%

altitude (pressure) 70 ... 106 kPa

Dimensions (W, D, H) 500 x 360 x 192 mm

Weight 15 kg

Power mains 230V/50 Hz 50 VA

Measuring cables

For Current Transformers 20m (2 pcs.)

For voltage transformers 20m (2 pcs., twisted)

Item 5B

CT’s include a multi-ratio secondary, therefore theMCT1600 has the ability to plot and simultaneouslydisplay up to 10 CT saturation curves.

Ratio Test Ratio testing is performed by comparing a voltage appliedto the secondary winding to the resulting voltageproduced on the primary winding. For example, if 1 voltper turn is applied to the secondary winding, the voltage

MCT1600Current Transformer Saturation, Ratio and Polarity Test Set

One button automated test:Demagnetization, CT Ratio, Knee Point,Saturation, Polarity and Phase Deviation Test

Displays multiple instantaneous SaturationCurves with Knee Point

Integrated 1 kV DC insulation test system

Color daylight viewable graphical display

“Save & Print Later” with USB stick

Fast data entry using full QWERTY keyboard

1600 VAC Saturation Test Voltage

Automatic or manual testing selectable


DESCRIPTIONThe Megger MCT1600 test set is a lightweight, robust,portable unit used to automatically or manually performsaturation, ratio, polarity, demagnetizing tests andinsulation tests on current transformers. The MCT providesa microprocessor controlled variable voltage output andprecision instrumentation for automatically testing singleand multi-ratio CTs. The MCT1600 possessesmicroprocessor controlled output voltage with precisioninstrumentation and storage, reducing testing time andincreasing productivity. All three tests – saturation, ratioand polarity – can be performed with the push of a buttonand without changing leads. The MCT1600 has a largedisplay, permitting the user to easily read all pertinent datawhile the test is being performed and providing the abilityto view the current transformer’s saturation curve.

Current transformers can be tested in their equipmentconfiguration, such as being mounted in transformers, oil circuit breakers or switchgear. It is necessary for theequipment to be completely isolated from the electricalsystem prior to testing.

APPLICATIONS

Saturation TestWith the single push of a button, The MCT1600 performs a CT saturation test and calculates the rated knee point.The saturation test is performed at mains rated frequencyof 50 or 60 Hz as required by IEC regulations. TheMCT1600 will calulate the rated knee point in compliancewith IEEE C57.13.1, IEC 60044-1 or IEC 60044-6. Whilethe saturation test is being performed, The MCT will plotthe CT saturation curve on the large graphical display andautomatically provide the user with the rated knee pointper the desired IEEE or IEC standard. Many substation


present on the primary winding would be 1 volt. Morespecifically, if 120 volts were applied to the secondary of a600/5 current transformer (120:1 ratio), 1 volt would bepresent on the primary winding. This test is performedautomatically during a CT saturation test or manually withthe output control knob and metering display. TheMCT1600 will also provide the operator with a directreading ratio, thus removing the need to calculate CT ratio manually.

Polarity TestPolarity of the current transformer under test is indicated tothe operator by a simple “Correct” or “Incorrect” indicationon the display accompanied by the measured phase angle.

Demagnetization Normal operating conditions and typical winding resistancemeasurements can cause a CT to become magnetized.The MCT1600 has the ability to automatically demagnetizethe CT under test. This automatic demagnetization routineis useful to ensure that the CT Saturation test yield correctresults. Prior to testing demagnification is recommendedper ANSI C57.13.1.

Insulation Resistance TestIn order to ensure that the CT secondary wiring is properlyinsulated, the MCT1600 system includes a 500/1000Vinsulation resistance test system. This test ensures that theCT secondary winding and secondary wiring is properlyinsulated per ANSI C57.13.1.

Note: Disconnect all electronic loads before performingthis test.

Data Storage and PrintingThe MCT1600 test system not only permits accurate andautomated CT testing, but also catalogues and stores testresults within the instrument for simple retrieval bysoftware at a later date. All catalogued test results can beuploaded to Megger’s PowerDBTM Lite for report generationand saturation curve plotting on a computer. PowerDBLite also has the ability to operate the MCT1600 with nooperator intervention, thus providing a completelycomputer controlled automated test system.

Complete report generation with PowerDb Lite

The Megger MCT1600 iseasily field transportablealong with anaccompanying heavyduty carry bag for leadsand cords.

The operator also has the option to print any cataloguedtest results immediately using an optional printer,providing hard copy of test reports immediately upon CTtest completion.

Onboard memory allows complete test results and data tobe stored in one complete file, permitting easy access toquick construction of reports such as saturation curve withknee point. The MCT1600 test file is saved in a MicrosoftXML format, thus the data is available to any applicationthat will accept an XML format.

UpgradeabilityThe MCT1600 includes the ability to upgrade the userinterface and testing capability using updates supplied ona USB memory device and a simple “upgrade” command.This upgrade capability permits the MCT1600 system toimprove as new testing needs are developed.


FEATURES AND BENEFITS Large Display - The large graphical display provides the

user with immediate. easy to read test results including aplot of the CT saturation curve. This display alsoprovides the user with simple, easy to read test results for Ratio and Polarity Test.

CT Saturation, Ratio and Polarity Automated Testing -The microprocessor-controlled output fully automatestesting of CT’s. This automated testing simplifies CTtesting and reduces testing time. Automated testing isaccomplished directly on the MCT1600 or via theincluded MS Excel macro.

CT Demagnetization - During operation and routine DCwinding resistance testing, it is possible for a CT tobecome magnetized. The MCT1600 includes anautomated CT Demagnetization function, which allowsdetermination of accurate Knee Point as well as stable,repeatable test results, and reduces test time.

Insulation Test - The MCT1600 includes a 500/1000Vinsulation test system to verify the CT secondary windingand secondary wiring. This insures that the secondaryinsulation has not degraded and will continue to performits function during high current faults.

Complete CT Testing - The MCT1600 system provides a complete CT saturation, ratio and polarity test.Eliminating the need for multiple pieces of testequipment to perform a CT test. All test are performedin compliance with IEEE C57.13.1 test guidelines.

Full QWERTY Keyboard - The field ruggedized fullQWERTY keyboard simplifies nameplate data input.

Test Result Report - The MCT1600 offers storage ofcomplete test files in an easy-to-use, versatile format thatpermits upload to PowerDB Lite, or printing test resultsusing the optional external printer. These optionsprovide a simple, complete, easy way to store over 200test results and saturation curves. All test results can becatalogued and stored inthe MCT1600.

High Voltage WarningIndication - The MCT1600can produce a high voltageoutput. To ensure thesafety of the user, a highvoltage warning is issuedvia both the MCT1600 andthe PowerDB Lite interfaceprior to the presence of anyoutput test voltage.

Manual Operation - TheMCT1600 is also suppliedwith a manual voltage output control knob. Thispermits the user to perform any test required manually if only a spot check is required. This allows the user toensure that test results are correct, assisting in diagnosisof a faulty CT.

Saturation Curve and all test results displayed at a glance.

Manual testing screen.

With a manualvoltage outputcontrol knob, theuser is able toperform any testrequired manuallyif only a spotcheck is required.

Download test results to a USB device.


SPECIFICATIONS

Input100 to 265 V, 1ø, 50 or 60 Hz, 15 A max.

Output

Continuously variable in six ranges:0 to 40 V at 2.0 A max (1 minute on 15 minute off)0 to 160 V at 2.0 A max (1 minute on 15 minute off)0 to 800 V at 1.5 A max (3 min on, 15 min off)0 to 1600 V at 1.0 A max (3 min on, 15 min off)

Instrumentation

Voltmeters

Output41⁄2 digit, auto rangingResolution: 0.0000 to 1.9999/19.999/199.99/1999.9Ranges: 0 to 40/160/800/1600 VAccuracy: ±0.5% of reading, and ±.5% range typical

±1% of reading and ±1 V maximum

Input41⁄2 digit, auto-rangingRanges: 0 to 2/600Resolution: 0.0000 to 1.9999/1.99/1.9/600 V

Accuracy2 V Range: ±0.5% of reading and ±0.25% range 600 V Range: ±0.5% of reading and ±0.5% range

Ammeter41⁄2 digitRange: 0.0000 to 1.0000A/5.000Accuracy: ±0.85% of reading and ±1 LSD

Phase Angle

3 digitsRange: 0 to 360 degreesAccuracy: ±1 degree

RatioRange Accuracy0.8 to 5000 ±0.4% typical

±0.8% maximum

Insulation TestTest Voltage: 1000 VDC, 500 VDCMeasuring Range: 10kΩ – 999MΩShort Circuit Current: 1.5mA nominalTest Current on Load: 1mA at min. pass values of insulation (as specified in BS7671, HD 384 and IEC 364)Accuracy: ±3%, ±2 digits up to 10MΩ

±5%, up to 100MΩ±30% up to full scale

Communication InterfacesUSBEthernet

EnvironmentOperating: -10º C to 40º CStorage: -30º C to 70º C

EnclosureThe unit is housed in a rugged enclosure suitable for use inoutdoor substations.

StandardsIEC 61010CSA 22.2CE

Dimensions7.5” H X 19.25” W X 15” D(190 H X 489 W X 940 D mm)

Weight47.6 lb (21.6 kg)

Item (Qty) Cat. No.

MCT1600 Current Transformer Saturation, Ratio and Polarity Test Set MCT1600


Line cord, North American (1 ea) 620000

Line cord, International color coded wire (1 ea) 15065

Test lead, H1 & H2, 40 ft, (1 ea) 620148

Test lead, X black, 20 ft, (1 ea) 620149

Test lead, X red, 20 ft, (1 ea) 620150

Ground lead, green with yellow,with large ground clip, 20 ft, (1 ea) 620151

Large test clip, red, 40mm opening, (1 ea) 640266

Large test clip, black, 40mm opening, (1 ea) 640267


Item (Qty) Cat. No.

Alligator clip, red, 4.1 mm, (1 ea) 684006

Alligator clip, black, 4.1mm, (1 ea) 684007

Soft side lead case 684035

USB memory stick 830029

Ethernet crossover cable (1 ea) 620094

Instruction book 750025

PowerDB Lite 544342


Printer USB, battery operated, (1 ea) 830030

PowerDB, 1st copy with USB key DB1001S

Item 5C

PTT 2.1 Portable Instrument Transformer Tester

The PTT 2.1 is an easy and light in weight test in-strument for testing instrument transformer using the existing load of the installation.

Advantages • Burden measurements of current instrument

transformer (CT) and voltage instrument trans-former (PT) inclusive input of wiring parameters e.g. cable lengths, cable diameter, resistance of fuses and junctions, in case that the measure-ment is not carried out directly on the CT termi-nals.

• Current instrument transformer ratio measure-ments based on a simultaneous primary and secondary current measurement

• Data memory for 680 complete data sets

• Small dimensions and light in weight

• Serial interface for data transfer (RS 232)

Applications • On-site ratio test of current instrument trans-

former

• On-site burden test of current instrument trans-former

• On-site burden test of voltage instrument trans-former

Options • CALSOFT I read out software for transfer and

presentation of data

• Printer DATAMEGA

Edition 05.2005

Technical Data PTT 2.1 Auxiliary supply: 46 V ... 300 V

(Max. Voltage without de-struction: 480 V / t ≤ 30s)

Influence of external magnetic fields: Safety requirements

≤ 0.25 % / 0.5 mT

Power consumption: ≤ 10 VA CE- certified Housing: Hard plastic Isolation protection: EN 61010-1 Dimensions: W 125 x H 236 x D 41 mm Degree of protection: IP-55 Weight: ca. 650 g Storage temperature: - 20 ... + 60°C Operation temperature: -10 °C ... +50 °C Relative humidity: ≤ 85% at Ta ≤ 21°C Temperature coefficient: 0.02 % / K +0 ... +40°C

0.05 % / K -10 ... +50°C Relative humidity for 30 days/year spread:

≤ 95% at Ta ≤ 25°C

Frequency range: 45 ... 66 Hz

Measurement accuracy Tolerance = ± ≤ indicated value of accuracy E(%) / phase shift ∆∆∆∆ϕϕϕϕ(°), Ecos

CT ratio: Accuracy E(%) of ratio error Ei, Et / Phase shift ∆∆∆∆ϕϕϕϕ(°) of phase displacement ϕϕϕϕp, ϕϕϕϕsIN1: Ip CT 100A CT 1000A LEMflex 3000A

IN2: Is CT ratio > 500 mA … 100 A > 5 A … ≤ 50 A > 50 A … 1000 A 3 A … 3000 A

I (12A) > 10 mA … ≤ 12 A 0.4 % / 0.3 ° 0.7 % / 0.4 ° 0.7 % / 0.3 ° 0.7 % + ECT / ---

CT 100A > 500 mA … 100 A 0.4 % / 0.3 ° (1) 0.7 % / 0.4 ° 0.7 % / 0.3 ° 0.7 % + ECT / ---

(1) Second CT 100A necessary (option)

CT, PT burden: Accuracy E(%) of operating burden Sb / Phase shift ∆∆∆∆ϕϕϕϕ(°) of burden phase angle ββββIN1: U U (300V)

IN2: I CT burden 20 mV … ≤ 100 mV > 100 mV … ≤ 30 V

I (12A) > 10 mA … ≤ 12 A (0.2 + 0.5)% / 0.3 ° 0.7 % / 0.3 °

CT 100A > 50 mA … ≤ 500 mA (0.5 + 0.5)% / 1.6 ° 1 % / 1.6 °

> 500 mA … 100 A (0.2 + 0.5)% / 0.3 ° 0.7 % / 0.3 °

Accuracy Ecos of burden factor cosIN1: U U (300V) Ecos (∆ϕ, cos)

IN2: I PT burden >30 V … 300 V ∆ϕ ±(0.8 … 1) ±(0.5 … 0.8) I (12A) 1 mA … ≤ 10 mA (0.2 + 0.2)% / 0.6 ° 0.3° 0.4 % 0.9 %

> 10 mA … ≤ 12 A 0.4 % / 0.3 ° 0.6° 0.8 % 1.8 %

CT 100A 10 mA … ≤ 50 mA (0.5 + 0.2)% / 2.6 ° 1.6° 2.1 % 4.9 %

> 50 mA … ≤ 500 mA 0.7 % / 1.6 ° 2.6° 3.5 % 8.0 %

Current, voltage: Accuracy E(%) / Phase shift ∆∆∆∆ϕϕϕϕ(°) of I,U I 1 mA … ≤ 10 mA > 10 mA … ≤ 12 A

I (12 A) (IN2) 0.2 % / 0.5 ° 0.2 % / 0.15 °

10 mA … ≤ 50 mA > 50 mA … ≤ 500 mA > 500 mA … 100 A

CT 100A (IN1, IN2) 0.5 % / 2.5 ° 0.5 % / 1.5 ° 0.2 % / 0.15 °

1 A … ≤ 5 A > 5 A … ≤ 50 A > 50 A … 1000 A

CT 1000A (IN1) 0.5 % / 1.5 ° 0.5 % / 0.25 ° 0.5 % / 0.15 °

3 A … 30 A 30 A … 300 A 300 A … 3000 A

LEMflex 3000A (IN1) 0.5 % + ECT / --- 0.5 % + ECT / --- 0.5 % + ECT / ---

> 2 A … 2000 A ECT : Accuracy specification of CT manufacturer

AmpLiteWire 2000A (IN1) 0.5 % + ECT / --- --- : No specification for phase shift

U 20 mV … ≤ 100 mV > 100 mV … ≤ 30 V >30 V … 300 V

U (300V) (IN1) 0.5 % / 0.15 ° 0.5 % / 0.15 ° 0.2 % / 0.15 °

0.5 %: Tolerance related to measurement range final value (Full Scale, FS). Tolerance depends from measurement value (M): E(%) = FS / M *x.x %, e.g. 0.5 %, 20 mV … ≤ 100 mV, U = 50 mV; E(%) = 100mV / 50mV*0.5 % = 1 %.Formulas for accuracy specification of ratio and burden measurementE(%), ∆ϕ(°) and Ecos are based on the specification of the used voltage and current ranges of used inputs IN1, IN2.

Accuracy E(%) for ratio / burden Phase shift ∆ϕ(°) for ratio / burden Accuracy Ecos of burden factor

E (ratio) = E(IN1 : Ip) + E(IN2 : Is)

E (burden) = E(IN1 : U) + E(IN2 : I)

∆ϕ (ratio) = ∆ϕ(IN1 : Ip) + ∆ϕ(IN2 : Is)

∆ϕ (burden) = ∆ϕ(IN1 : U) + ∆ϕ(IN2 : I)

Item 5D

PWS 2.3 PLUS Three-phase Portable Working Standard for Testing Electric-ity Meters and Instrument Transformers

The PWS 2.3 PLUS Portable Working Standard is a three-phase portable electronic meter test unit, used for testing single and three-phase electricity meters on site. The PWS2.3 PLUS allows checking of all meter installation parameters and associated circuits. The PWS 2.3 PLUS,with integrated instrument transformer test functions, is available in accuracy classes 0.1 or 0.2.

The unit can be used either with a direct connection in the range of 1 mA ... 12 A, or by using a set of 3 active 100A error compensated clamp-on CT’s (included in the stan-dard accessories set) in the range 10 mA …100 A. It is therefore possible to easily and accurately measure both CT and direct connected meters.

The unit can be powered either from the measuring circuit or from an auxiliary single-phase supply.

Advantages • Precision test equipment for AC values in the 45 Hz to

66 Hz frequency range • Wide measuring range with auto ranging • Display of vector diagram for analysis of mains condi-

tions and meter connections • Measurements of wave forms and harmonics with dis-

play • Easy detection of circuit connection faults • Data memory for test results and customer data • Small dimensions and light in weight • Serial interface for data transfer (RS 232)

Functions • Active, reactive and apparent energy measurement for

single-phase and three-phase, 3- or 4-wire, circuits with integrated error calculator

• Impulse output for energy (galvanic isolated) • Registration of active, reactive and apparent energy for

register testing • Active, reactive and apparent power measurements • Current and voltage measurements • Power factor measurements • Frequency measurements • Burden measurement of Current Transformer (CT) and

Potential Transformer (PT) • Ratio testing of Current Transformer (CT) • Ratio testing of Potential Transformer (PT) (option)

Options • Software CALSOFT • Set of 3 clamp-on CT 10A (active error compensated) • Set of 3 clamp-on CT 1000A • Set of 3 flexible current probes LEMflex 30/300/3000A• 3-phase adapter for AmpLiteWire, VoltLiteWire • 1-phase adapter for AmpLiteWire, VoltLiteWire • Primary current sensor AmpLiteWire 2000A • Primary voltage sensor VoltLiteWire 40kV

CT Burdenmeasurements

PT Burdenmeasurements

Registertests

Harmonicsanalyses

Vectordiagram

Errormeasurement

LiteWireSensors

Clampsup to 1000 A

Clampsup to 100 A

Clampsup to 3000 A

Customerdata

Ratiomeasurements

Otherchecks data

Meter data

Instrument transformer testing

Meter testing and measurements

Several optionally current clamps

Administrative data set (ADS)

Edition 04.2006

Technical Data PWS 2.3 PLUS

General Auxiliary supply: Power may be taken from the auxiliary

supply or the measuring circuit at 46 V ... 300 V / 47 … 63 Hz

Power consumption: max. 25 VA Housing: Hard Plastic Dimensions: W 290 x H 216 x D 81 mm

(inclusive rubber protection) Weight: approx. 2.2 kg (incl. rubber protection) Operation temperature: -10 °C ... +60 °C Storage temperature: -20 °C ... +60 °C Relative humidity: ≤ 85% at Ta ≤ 21°C

≤ 95% at Ta ≤ 25°C, 30 days / year spread

Safety CE certified

Isolation protection: IEC 61010-1:2002 Measurement Category: 300V CAT III Degree of protection: IP-40

Measurement Range Measuring Quantity Range Input / Sensor

Voltage (phase - neutral) 3 V … 300 V U1, U2, U3, N

20 mV … 5 V U1, N (CT Burden)

Current 1 mA … 12 A I1, I2, I3

1 mA … 10 A Clamp-on CT 10A

10 mA … 100 A Clamp-on CT 100A

100 mA …1000 A Clamp-on CT 1000A

3 A …3000 A LEMflex 3000A

Primary voltage 500 V … 40 kV VoltLiteWire 40kV

Primary current 30 A …2000 A AmpLiteWire 2000A

Measurement Accuracy

Voltage / Current ≤ ± E [%] 1 2 4

Measuring Quantity Range Cl. 0.1 Cl. 0.2

Voltage (U1, U2, U3, N) 46 V … 300 V 0.1 0.2

3 V … 46 V 0.3 0.5

Current direct (I1, I2, I3) 10 mA … 12 A 0.1 0.2

1 mA … 10 mA 0.1 0.2

Current clamp-on CT 10A 10 mA … 10 A 0.2

Current clamp-on CT 100A 100 mA … 100 A 0.2

Current clamp-on CT 1000A 10 A …1000 A 0.2

Current LEMflex 3000A 300 A …3000 A

30 A … 300 A 0.1 + EM 0.2 + EM

3 A … 30 A

Burden Voltage (U1, N) 100 mV … 5 V 0.5 1.0

20 mV … 100 mV 0.5 1.0

Current AmpLiteWire 2000A 300 A …2000 A 0.1 + EM 0.2 + EM

30 A … 300 A 0.1 + EM 0.2 + EM

Voltage VoltLiteWire 40kV 6 kV … 40 kV 0.1 + EM 0.2 + EM

500 V … 6 kV 0.1 + EM 0.2 + EM

Power / Energy Voltage: 46 V… 300 V (U - N) ≤ ± E [%] 1 2 3

Measuring quantity / Input I Range Cl. 0.1 Cl. 0.2

Active (P), Apparent (S) Power / Energy

Direct (I1, I2, I3) 10 mA … 12 A 0.1 0.2

1 mA … 10 mA 0.1 0.2

Clamp-on CT100A 100 mA … 100 A 0.2

10 mA … 100 mA 1.0

Reactive (Q) Power / Energy

Direct (I1, I2, I3) 10 mA … 12 A 0.2 0.4

1 mA … 10 mA 0.2 0.4

Clamp-on CT 100A 100 mA … 100 A 0.4

10 mA … 100 mA 1.0

Influence of external magnetic fields (45 Hz … 66 Hz):

≤ 0.07 % / 0.5 mT 3

≤ ± TC [%/°C] 3

Temperature coefficient (TC): Range Cl. 0.1 Cl. 0.2 0° C ... +40°C 0.010 0.015

-10° C ... +60°C 0.015 0.025

CT Burden ≤ ± E [%] 1 2 5

I (current direct I1) U (U1 - N) Cl. 0.1 Cl. 0.2

10 mA … 12 A 100 mV … 5 V 0.6 1.2

10 mA … 12 A 20 mV … 100 mV 0.1 + 0.5 0.2 + 1.0

PT Burden ≤ ± E [%] 1 2 5

I (Current direct I1) U (U1 - N) Cl. 0.1 Cl. 0.2

10 mA … 12 A 46 V … 300 V 0.2 0.4

1 mA … 10 mA 46 V … 300 V 0.1 + 0.1 0.2 + 0.2

CT Ratio ≤ ± E [%] / ∆ϕ [°] 1 2 6

IP - Input / Range IS (I1, I2, I3) Cl. 0.1 Cl. 0.2

Clamp-on CT 100A

100 mA … 100 A 10 mA … 12 A 0.3 / 0.3 0.4 / 0.4 100 mA … 100 A 1 mA … 10 mA 0.2 + 0.1 / - 0.2 + 0.2 / -

Clamp-on CT 1000A

10 A …1000 A 10 mA … 12 A 0.3 / 0.3 0.4 / 0.4 1 A … 10 A 10 mA … 12 A 1.0 / - 1.2 / -

LEMflex 3000A

300 A …3000 A 30 A … 300 A 10 mA … 12 A 0.2 + EM / - 0.2 + EM / - 3 A … 30 A

AmpLiteWire 2000A

300 A …2000 A 10 mA … 12 A 0.2 + EM / - 0.4 + EM / -

30 A … 300 A 10 mA … 12 A 0.2+0.1+EM/ - 0.2+0.2+EM/ -

PT Ratio ≤ ± E [%] / ∆ϕ [°] 1 2 6

UP (VoltLiteWire) US (U1, U2, U3, N) Cl. 0.1 Cl. 0.2

6 kV … 40 kV 46 V … 300 V 0.2 + EM / - 0.4 + EM / -

500 V … 6 kV 46 V … 300 V 0.1+0.1+EM/ - 0.1+0.2+EM/ -

Frequency / Phase Angle / Power Factor ≤ ± E

Measuring Quantity Range Cl. 0.1 Cl. 0.2

Frequency (f) 40 Hz … 70 Hz 0.01 Hz

Phase Angle (ϕϕϕϕ) 0.00 °… 359.99° 0.1 °

Power Factor (PF) -1.000 … +1.000 0.002

Notes 1 x.x :Related to the measuring value

x.x :Related to the measuring range final value (full scale, FS), E(M) = FS/M * x.x (e.g. 0.1 at FS =10 mA, E(2mA) = 10/2 * 0.1 = 0.5 %)

2 Fundamental frequency in the range 45 … 66 Hz 3 S: x.x, P,Q: x.x / PF (related to apparent power), 3- and 4-wire networks 4 EM: Accuracy specified by manufacturer of clamp-on CT or sensor 5 E[%]: Accuracy of operating burden Sn [VA] 6 E[%]: Accuracy of ratio Ei, Et; ∆ϕ[°]: Phase shift of phase displacement

ϕp, ϕs.

Pulse Input Suitable for scanning head type SH 2003

Input level: 4 … 12 VDC (24 VDC) Input frequency: max. 200 kHz Input supply: 12 VDC (I < 60 mA)

Pulse Output Output level: 5V Pulse length: ≥ 10µsMeter constant Active, Reactive, Apparent [imp/kWh(kvarh,kVAh)]

C = 40’000’000 / In The meter constant depends on the highest selected internal current range (In).

Internal current ranges In [A]

Direct I1, I2, I3 0.012 0.12 1.2 12

Clamp-on CT 100A 0.1 1 10 100

Example: Clamp-on CT 100A (In = 10 A) C = 40’000’000 / 10 = 4’000’000 [imp/kWh]

Output frequency: C’ = C / 3’600’000 [imp/Ws(vars, Vas)] fo = C’ *PΣ(QΣ, SΣ) fmax = 40’000’000 / (10 * 3’600’000) *

3 * 10 * 300 = 10’000 [imp/s]

6.Computerised Power

Transformer Test Set

Item 6A

ETP System

1/13ETP

ETP: Basic features

Predictive Maintenance Less maintenance costs Faults detection and

confirmation capability Each part of the

transformer is checked Easy to use Guided operation Automatic reports

generation

Diagnostic and trending software (optional; coming soon)

Maintenance contracts and help on-line

CE marked

ETP SYSTEM.

Evaluation of Power Transformers

Condition Based Maintenance (CBM)

Introduction

ETP System is a complete predictive

maintenance instrument for transformers, allowing us to detect the problems before

its unexpected appearance and to remove the high costs of urgent maintenance actions, transport and non-planned

downtime.

The normal operation of a transformer can be altered by several factors. Diagnostic systems are based on the periodic realization of tests that try to determinewhen a problem can occur. These

problems can affect from an abnormal way to some or several of transformer components. Evaluation and diagnostic

systems can be electrical or physical-chemical. ETP System are based on electrical test that can determine: Liquid and solid condition Electric circuit condition

Magnetic Core condition Winding displacement

The advantage provided by ETP System is

to allow a predictive maintenance

philosophy, where corrective actions can

be programmed with enough time and in a more efficient manner. This kind of maintenance is being introduced in all

companies with big electrical machines. The ETP System introduction produces a

maintenance costs reduction .

ETP System makes several measurements with the capacity of detect and confirm possible problems in each transformer's

part:

Core

Windings Integrity Liquid and solid insulation system Internal windings position Regulator

ETP System

2/13ETP

ETP System is applicable to any kinds of transformers :

Power transformers Distribution transformer

Autotransformers Measurement transformer (only

voltage) Single or three-phase.

Each problem that can be detected in the transformers will come in many situations

indicated at least by two measurements, making easier the decision process. ETP System carries out the following measurements:

Automatic three-phase turns ratio. Recovery voltage test/Insulation

Resistance test/Polarization Index.

Automatic three-phase winding resistance test with temperature correction.

Short circuit impedance.

In addition to the easy friendly use and guided test, all results generated by ETP

System, as numeric values and graphics are automatically stored. When a test is finished, a full report can be printed or

saved so that it can be treated by two methods of evaluation:

Direct diagnostic, with the parameters obtained at the finish of each test.

Trend analysis to follow the evolution of the parameters to determine if we

are on a risky zone.

Description

A variety of stresses occur during the lifetime of transformers, arising from

mechanical, electrical, contamination effects and lightning discharges in

thunderstorms. Of among these, it is necessary to highlight the following ones:

Opening and closing of breakers Short circuit

Earth connection Continuous overloads Transie nt overloads

These lead to a number of different failure modes with perhaps catastrophic results, Quality of Service (QoS), economical and technical.

Besides, as much the materials variety as

the manufacturing process mediating on the complexity of transformers.

The ideal situation would be to do the first test soon after the machine installation but

the most of times it is impossible. Anyway the first ETP test that you

perform will give you a complete information about the transformer state

and therefor e the actions that you might carry out on it, being a perfect start point to monitoring the transformer ageing.

After this first test, if you test routinely

and keep records of the results generated by ETP System, you can keep track of the condition of the transformer as it

deteriorates over time.

The recommended time between test will depend on the machine status: a very old or damaged machine must be tested in

shorter periods than a new or very good status one. Repeating the test regularly for

routine maintenance yearly may be appropriate if it is essential to keep the apparatus in operation at all times. Testing

at one to four years intervals may be sufficient for other

ETP System

3/13ETP

applications. You should also test the transformer before and after a repair has been performed on the equipment before it is re-energized.

Field experience and economics

ETP System and its diagnostic criteria is based on a theoretical principles and a great field testing experience.

ETP System was developed in collaboration with Iberdrola, a major

European utility, over ten years using results from testing over 10000 transformers. Several utilities and services companies have adopted ETP System all around the world.

Costs of unexpected failure, including

repair and transportation of almost any kind of transformer easily justify ETP inversion.

ETP Method

It’s very important in order to make predictive maintenance that all tests will be comparative in time, removing all the mistakes caused by measuring instrument,

user, and environme nts factors. The manage to make this, is using automatic measure systems and closed tests, in

which user hasn’t got any possibility of chance and the measured values are standardised automatically in external

factors like temperature.

ETP System is very simple to use. A lot of measuring instruments failed in it’s own difficulty. All ETP measuring units are

running in the same way, guiding the user in all testing and analysing process.

The ETP technique takes all measurements under Windows

T M based

PC control, which prompts the user during test process including the correct connections to the transformer under test, so the testing is easy to carry out.

The best feature of this system comes in three-phase transformer with regulator due

to measuring test spe ed. In addition, the

individual and compound values are displayed at the same time corrected in temperature. This involves less time, not only in test time so information

processing and inform generating as well.

Advantages of ETP System

Predictive maintenance. Maintenance costs reduction.

Higher availability. High Reliability.

Ten years maturity. Two measures for detection and

confirmation of each problem.

Speed measures without machine danger.

User friendly environment and guided operation.

Eliminate human error.

Graphic and numeric data visualization

Modular equipment easy to carry. Values and data are saved and

organized automatically.

Computer aided test control through RS232 line and specific software.

ETP System

4/13ETP

Information obtained

The ETP System measures several parameters that allow us to characterize

a transformer. The anomalies in these parameters or in their evolution could

be symptom of a failure. It is very important to perform a stage of tests during the life of each transformer that

indicates us its evolution.

These parameters are based in theoretical principles and experienced by qualified engineers for 10 years of testing and trending in more than 10000

transformers.

The following table shows how ETP System detects and confirms each possible damage on a transformer.

FAILURE DETECTED DAMAGE UM1B UM2B UM3B UM5B

CORE General

Regulator breakdown CONNECTION

Connection slackening

Windings displacement

Winding open loop.

Winding hot points

Short circuit among turns.

WINDINGS

INTEGRITY

Winding partial short circuit

Degradation of solid dielectric

Degradation of liquid dielectric

Contamination of the insulation

LIQUID AND

SOLID

INSULATION

Anomalous aging.

Table 1: Equipment and detected damage.

.- The problems of this type could be detected

.- The problems of this type could be detected if they acquire certain significance.

.- The problem could not be detected by way of this unit.

ETP System

5/13ETP

ETP Equipment

ETP System

6/13ETP

ETP System units can be classified in two groups, in function of the testing signal. There are two equipments that make test with AC current to the frequency of the

mains (50 or 60 Hz): UM1B and UM5B. On the other hand, UM2B and UM3B that make DC test.

UM1B: Transformer Turns Ratio Meter

The UM1B is a unit to measure the turns ratio of power and distribution

transformers or autotransformers both mono-phase and three-phase.

For measuring the turns ratio, the unit applies the voltage test to the high voltage winding of the transformer and measures the voltage induced in the low

voltage winding. The equipment also measures the excitation current and phase angle deviation between the

different magnitudes: V1, V2 and I1.

As voltage used is far from the transformer nominal voltage, this test is

totally non-destructive for the machine. With the turns ratio measurement it is

possible to detect problems in the transformer like:

- Partial shorted turns.- Cut winding.

- Regulator defect.- Problem in magnetic core.

The following graphs illustrate the main features of UM1B equipment.

Testing with ETP System.

ETP System

7/13ETP

Current and

voltage graphs.

Turns ratio graph.

Turns ratio table.

ETP System

8/13ETP

UM2B: Recovery Voltage Meter

UM2B equipment is an automatic unit to take the following measurements in power and distribution transformers or

autotransformers.

Recovery Voltage and Time Constant that allows us to predict an anomalous ageing in the machine.

Insulation Resistance and Polarization Index, that give us an

overview of insulation condition.

For the calculation of those parameters, UM2B equipment applies different D.C. voltage levels through a programmable

source, taking values in an automatic way at specified times. This test is

totally non-destructive for the machine and allows us to detect problems in the transformer like:

Degradation of solid dielectric

Degradation of liquid dielectric Contamination of the insulation

Recovery Voltage Graph.

Insulation

Resistance Graph.

ETP System

9/13ETP

UM3B: Transformer Windings Resistance Tester

UM3B is a low resistance ohmmeter specially designed for the resistance measurement of transformers windings

and single and/or three-phaseautotransformers of any variety.

In a single test, UM3B provides the simple and compound resistance value for

each winding: both high and low voltage and tertiary. Furthermore, to calculate the

results, the system takes into account the transformer connection group, and thetemperature at which the test is carried out, as such results are provided at the reference temperature specified by the

operator.However this equipment is also suitable to pure ohmic resistance and windings

resistance of rotating machine measurements.The UM3B unit permits to do the following measurements automatically:

Winding resistance on the three phases.

Resistance values corrected in temperature.

Calculations of individual and compound resistance values ( or Y).

The measurement technique used is the metric ratio resistance method (measured

on four wires). This technique presents a series of advantages, such as:

Immunity against the variations in the values of the measuring circuit

components. Immunity against temperature

changes. Immunity against variations in test

current.

Winding Resistance Graph and Table.

ETP System

10/13ETP

UM5B: Short Circuit Impedance Meter

UM5B measures the short circuit impedance of power and distribution transformers or autotransformers applying

a voltage test to the high voltage winding of the transformer and measuring the

voltage excitation, the current excitation and phase angle deviation between them: V1 and I1. It’s carried out with the

transformer LV winding in short circuit.

With the short circuit impedance measurement it is possible to detect problems in the transformer like:

Displacements between windings

Open winding Partial shorted turns.

The main features of UM5B equipment are the following:

Automatic per-cent deviation calculation between nameplate and

measurement short circuit voltage (Vcc).

Resistive and inductive

components calculation of short circuit impedance.

Signal graphic visualization for voltage and current on high voltage winding.

Optional 75ºC measurement compensation.

Current and Voltage Graph.

Current and Voltage Graph.

Short Circuit Parameters

Results Table.

ETP System

11/13ETP

ETP System: Testing Procedure

One of the advantages of the system is the application software that facilitates the complete evaluation of the transformer in a short time and with

reliable and traceable results.

Main Menu

Thanks to main menu, it is possible to access to the desired application to carry

out a test, as well as to the diagnostic and trends tools.

Main Menu.

Test's organization

The applications of every equipment use a common test

data storage system. When a test is started, some registers must

be filled in order to guarantee a correct storage and following identification.

Machine Identification.

ETP System

12/13ETP

If the machine has just been tested sometime, only the serial number would

be needed to restore all identification and technical data, and to store the new test in the same folder, making automatically the machine’s historic log. In order to find and observe the results, ETP System

carries out a search based on transformer's serial number and test date.

Technical machine data scre en

ETP System stores all data in relation to the machine under test. This information is shared for all units and only has to be

filled at the first made test. Application software will interpret these data in order

to guide the user in the connection of thedevice under test.

Guided Menu

Software shows the operator a logical

flow of steps both in test and analysis

process. Each application guides the worker and assures that the test is always

made in the same way independently of the worker.

Software shows during all process the connections, precautions that the worker

has to take and the actual state (measuring, printing, etc), being very interactive with the worker.

ETP System carries out an automatic

measurement of different parameters and displays the results clearly on the PC screen. Also, it generates a report of the

equipment tested. All technical data for the current and previous tests (perhaps

over a period of years) are presented in a structured manner. The clear presentation of these reports makes interpretation of

the results straightforward and facilitates predictive maintenance techniques

Test Search.

Technical data.

ETP System

13/13ETP

Optional Tools

ETP DiagHelp

In order to make diagnostic easier, ETP

DiagHelp makes a complete evaluation of transformers using the diagnostic criteria

with the parameters and measurements made by ETP System.

The diagnostic criteria are based on theoretical principles and in the experience acquired by personnel of Iberdrola and Unitronics during the la st 10

years, with more than 10.000 rehearsals in power transformers.

This application recovers the file generated after the test applying

automatically the diagnostic criteria giving both the problem and its gravity.

ETP Trends

ETP Trends tool has been developed to follow the evolution of the tested

machines by ETP System. The trend of a parameter to change gives us information that something is wrong in the machine. In these cases, it will be necessary to make more frequently test and correlate

them with ETP DiagHelp.

ETP Trends shows the results both in

graphical and tabular format in order to easier evaluation.

7. Transformer Frequency

Response Analyzer

Item 7A

FRAX 101Sweep Frequency Response Analyzer

Smallest and most rugged FRAinstrument in the industry

Highest possible repeatability by using reliable cable practice and high-performance instrumentation

Fulfills all international standards for SFRA measurements

Highest dynamic range and accuracy in the industry

Wireless communication and batteryoperated

Advanced analysis and decision supportbuilt into the software

Imports data from other FRA test sets


DESCRIPTIONPower transformers are some of the most vital componentsin today’s transmission and distribution infrastructure.Transformer failures cost enormous amounts of money inunexpected outages and unscheduled maintenance. It isimportant to avoid these failures and make testing anddiagnostics reliable and efficient.

The FRAX 101 Sweep Frequency Response Analyzer(SFRA) detects potential mechanical and electricalproblems that other methods are unable to detect. Majorutilities and service companies have used the FRA methodfor more than a decade. The measurement is easy toperform and will capture a unique “fingerprint” of thetransformer. The measurement is compared to a reference“fingerprint” and gives a direct answer if the mechanicalparts of the transformer are unchanged or not. Deviationsindicate geometrical and/or electrical changes within thetransformer.

FRAX 101 detects problems such as:

Winding deformations and displacements

Shorted turns and open windings

Loosened clamping structures

Broken clamping structures

Core connection problems

Partial winding collapse

Faulty core grounds

Core movements

Hoop buckling

APPLICATIONPower transformers are specified to withstand mechanicalforces from both transportation and in-service events, suchas faults and lightning. However, mechanical forces mayexceed specified limits during severe incidents or whenthe insulation’s mechanical strength has weakened due toaging. A relatively quick test where the fingerprintresponse is compared to a post event response allows fora reliable decision on whether the transformer safely canbe put back into service or if further diagnostics isrequired.

Collecting fingerprint data using Frequency Response Analysis (FRA) is aneasy way to detect electro-mechanical problems in power transformersand an investment that will save time and money.

Method BasicsA transformer consists of multiple capacitances,inductances and resistors, a very complex circuit thatgenerates a unique fingerprint or signature when testsignals are injected at discrete frequencies and responsesare plotted as a curve.

Capacitance is affected by the distance betweenconductors. Movements in the winding will consequentlyaffect capacitances and changethe shape of the curve.

The SFRA method is based oncomparisons betweenmeasured curves wherevariations are detected. OneSFRA test consists of multiplesweeps and reveals if thetransformer’s mechanical orelectrical integrity has beenjeopardized.

Practical Application In its standard application, a“finger print” reference curvefor each winding is captured when the transformer is newor when it is in a known good condition. These curves canlater be used as reference during maintenance tests orwhen there is reason to suspect a problem.

The most reliable method is the time based comparisonwhere curves are compared over time on measurementsfrom the same transformer. Another method utilizes typebased comparisons between “sister transformers” with thesame design. Lastly, a construction based comparison can,under certain conditions, be used when comparingmeasurements between windings in the same transformer.

These comparative tests can be performed 1) before andafter transportation, 2) after severe through faults 3) beforeand after overhaul and 4) as diagnostic test if you suspectpotential problems. One SFRA test can detect windingproblems that requires multiple tests with different kinds oftest equipment or problems that cannot be detected withother techniques at all. The SFRA test presents a quick andcost effective way to assess if damages have occurred or ifthe transformer can safely be energized again. If there is aproblem, the test result provides valuable information thatcan be used as decision support when determining furtheraction.

Having a reference measurement on a mission criticaltransformer when an incident has occurred is, therefore, avaluable investment as it will allow for an easier and morereliable analysis.

Analysis and SoftwareAs a general guideline, shorted turns, magnetization andother problems related to the core alter the shape of thecurve in the lowest frequencies. Medium frequenciesrepresent axial or radial movements in the windings andhigh frequencies indicate problems involving the cablesfrom the windings, to bushings and tap changers.


An example of low, medium and high frequencies

The figure above shows a single phase transformer after a serviceoverhaul where, by mistake, the core ground never got connected (red),and after the core ground was properly connected (green). This potentialproblem clearly showed up at frequencies between 1 kHz and 10 kHz anda noticeable change is also visible in the 10 kHz - 200 kHz range.

The figure above shows a single phase transformer after a serviceoverhaul where, by mistake, the core ground never got connected (red),and after the core ground was properly connected (green). This potentialproblem clearly showed up at frequencies between 1 kHz and 10 kHz anda noticeable change is also visible in the 10 kHz - 200 kHz range.

The FRAX Software provides numerous features to allowfor efficient data analysis. Unlimited tests can be open atthe same time and the user has full control on whichsweeps to compare. The response can be viewed intraditional Magnitude vs. Frequency and/or Phase vs.Frequency view. The user can also choose to present thedata in an Impedance or Admittance vs. Frequency viewfor powerful analysis on certain transformer types.


Test Object Browser — Unlimited numberof tests and sweeps. Full user control.

Quick Select Tabs — Quickly changepresentation view for differentperspectives and analysis tools.

Quick Graph Buttons — Programmablegraph setting lets you change views quicklyand easily.

Sweep/Curve Settings — Every sweepcan be individually turned on or off,change color, thickness and position.

Dynamic Zoom — Zoom in andmove your focus to any part ofthe curve.

Operation Buttons — All essentialfunctions at your fingertips; select withmouse, function keys or touch screen.

Automated analysis compares two curves using analgorithm that compare amplitude as well asfrequency shift and lets you know if the differenceis severe, obvious, or light.

Built-in-decision support is provided by using a built-in analysis tool based on the international standard DL/T 911-2004.


Considerations When Performing SFRAMeasurementsSFRA measurements are compared over time or betweendifferent test objects. This accentuates the need to performthe test with the highest repeatability and eliminates theinfluence from external parameters such as cables,connections and instrument performance. FRAX offers allthe necessary tools to ensure that the measured curverepresents the internal condition of the transformer.

Good ConnectionsBad connections cancompromise the test resultswhich is why FRAX offers arugged test clamp thatensures good connection tothe bushings and solidconnections to theinstrument.

Shortest BraidConceptThe connection from the cable shield to ground has to bethe same for every measurement on a given transformer.Traditional ground connections techniques have issueswhen it comes to providing repeatable conditions. Thiscauses unwanted variations in the measured response forthe highest frequencies that makes analysis difficult.

The FRAX braid drops down from the connection clampnext to the insulating discs to the ground connection at the base of the bushing. This creates near identicalconditions every time you connect to a bushing whether it is tall or short.

The Power of WirelessFRAX 101 uses class 1 Bluetooth® wireless communication.Class 1 Bluetooth® has up to 100 m range and is designedfor industrial applications. An optional internal batterypack is available for full wireless flexibility. Shorter andmore light-weight cables can be used when the user isliberated from cable communication and power supplycables.

A standard USB interface (galvanically isolated) is includedfor users who prefer a direct connection to their PC.

IMPORT AND EXPORTThe FRAX software can import data files from other FRAinstruments making it possible to compare data obtainedusing another FRA unit. FRAX can import and export dataaccording to the international XFRA standard format aswell as standard CSV and TXT formats.

Optimized Sweep SettingThe software offers the user an unmatched feature thatallows for fast and efficient testing. Traditional SFRAsystems use a logarithmic spacing of measurement points.This results in as many test points between 20Hz and200Hz as between 200KHz and 2MHz and a relatively longmeasurement time.

The frequency response from the transformer contains afew resonances in the low frequency range but a lot ofresonances at higher frequencies. FRAX allows the user tospecify less measurement points at lower frequencies andhigh measurement point density at higher frequencies.The result is a much faster sweep with greater detailwhere it is needed.

Variable VoltageThe applied test voltage may affect the response at lowerfrequencies. Some FRA instruments do not use the 10 Vpeak-to-peak used by major manufacturers and this maycomplicate comparisons between tests. FRAX standardvoltage is 10 V peak-to-peak but FRAX also allows theuser to adjust the applied voltage to match the voltageused in a different test.

FTB 101Several international FRA guides recommends to verify theintegrity of cables and instrument before and after a testusing a test circuit with a known FRA response suppliedby the equipment manufacturer. FRAX comes with a fieldtest box FTB101 as a standard accessory and allows theuser to perform this important validation in thefield at any timeand securemeasurementquality.

The laptop can be operated by touch screen and the communication iswireless via Bluetooth. Measurement ground braids connect close to theconnection clamps and run next to the bushing to the flange connectionto avoid cable loops that otherwise affect the measurement.

Contacts made with the C-clampguarantee good connections

FTB 101 Field Test Box


DYNAMIC RANGE

Making accurate measurements in a wide frequency rangewith high dynamics puts great demands on test equipment,test leads, and test set up. FRAX 101 is designed with theserequirements in mind. It is rugged, able to filter inducedinterference and has the highest dynamic range andaccuracy in the industry. FRAX 101 dynamic range or noisefloor is shown in red below with a normal transformermeasurement in black. A wide dynamic range, low noisefloor, allows for accurate measurements in everytransformer. A margin of about 20 dB from the lowestresponse to the instruments noise floor must bemaintained to obtain ±1 dB accuracy.

SPECIFICATIONS

General FRA Method: Sweep frequency (SFRA) Frequency Range: 0.1 Hz - 25 MHz, user selectable Number of Points: Default 1046,

User selectable up to 32,000Measurement time: Default 64 s, fast setting,

37 s (20 Hz - 2 MHz) Points Spacing: Log., linear or both Dynamic Range/Noise Floor: >130dB Accuracy: ±0.3 dB down to -105 dB

(10 Hz - 10 MHz) IF Bandwidth/Integration Time: User selectable (10% default) Software: FRAX for Windows 2000/ XP/Vista PC Communication: Bluetooth and USB

(galvanically isolated) Calibration Interval: Max 3 years Standards/guides: Fulfill requirements in Cigré

Brochure 342, 2008Mechanical condition assessmentof transformer windings usingFRA and Chinese standard DL/T911-2004, FRA on windingdeformation of powertransformers, as well as otherinternational standards andrecommendations

Analog Output Channels: 1 Compliance Voltage: 0.2 - 20 V peak-to-peak Measurement Voltage at 50 Ω: 0.1 - 10 V peak-to-peak Output Impedance: 50 ΩProtection: Short-circuit protected

Analog InputChannels: 2 Sampling: Simultaneously Input Impedance: 50 ΩSampling Rate: 100 MS/s

Physical Instrument Weight: 1.4 kg/3.1 lbs Case and Accessories Weight: 15 kg/33 lbsDimensions: 250 x 169 x 52 mm

9.84 x 6.65 x 2.05 inDimensions with Case: 520 x 460 x 220 mm

20.5 x 18.1 x 8.7 in. Input Voltage: 11 - 16 V dc or 90 - 135 V ac and

170 - 264V ac, 47-63 Hz

Environmental Operating Ambient Temp: -20°C to +50°C / -4°F to +122°F Operating Relative Humidity: < 90% non-condensing Storage Ambient Temp: -20°C to 70°C / -4°F to +158°F Storage Relative Humidity: < 90% non-condensingCE Standards: IEC61010 (LVD) EN61326 (EMC)

PC Requirements (PC not included)Operating System: Windows 2000/ XP / Vista Processor: Pentium 500 MHz Memory: 256 Mb RAM or more Hard Drive: Minimum 30 Mb free Interface: Wireless or USB (client)

An example of FRAX 101’s dynamic limit (red) and transformermeasurement (black)

FEATURES AND BENEFITS Smallest and most rugged FRA instrument in the

industry.

Guaranteed repeatability by using superior cablingtechnology, thus avoiding the introduction of error dueto cable connection and positioning (which is commonin other FRA manufacturers’ equipment).

Fulfills all international standards for Sweep FrequencyResponse Analysis (SFRA) measurements.

Highest dynamic range and accuracy in the industryallowing even the most subtle electro-mechanicalchanges within the transformer to be detected.

Wireless communication allows easy operation withoutthe inconvenience of cable hook up to a PC.

Battery input capability allows for easy operationwithout the need for mains voltage supply.

Advanced analysis and support software tools allows forsound decision making with regard to further diagnosticsanalysis and/or transformer disposition.



FRAX101_DS_en_V01

FRAX cable set consists of double shielded high quality cables, braidfor easy and reliable ground connection, and clamp for solidconnections to the test object.

OPTIONAL ACCESSORIES The built-in battery pack offers flexibility when

performing tests on or off the transformer.

The Active Impedance Probe AIP 101 should be usedwhen measuring grounded connections such as to thetransformer tank or a bushing connected to thetransformer tank. AIP 101 ensures safe, accurate andeasy measurements to ground.

The Active Voltage Probe AVP 101 is designed formeasurements when higher input impedance is needed.AVP 101 can be used for measurements where up to 1 MΩ input impedance is required.

Item (Qty) Cat. No.


Battery option, 4.8 Ah AC-90010

Calibration set AC-90020

Active impedance probe AIP 101 AC-90030

Active voltage probe AVP 101 AC-90040

FRAX Demo box FDB 101 AC-90050

Field Demo Box FTB 101 AC-90060

Ground braid set, 4 x 3 m including clamps GC-30031

FRAX Generator cable, 2xBNC, 9 m (30 ft) GC-30040

FRAX Generator cable, 2xBNC, 18 m (59 ft) GC-30042

FRAX Measure cable, 1xBNC, 9 m (30 ft) GC-30050

FRAX Measure cable, 2xBNC, 18 m (59 ft) GC-30052

FRAX C-clamp GC-80010

FRAX for Windows SA-AC101

Item (Qty) Cat. No.

FRAX 101 complete with: ac/dc adapter, mains cable, ground cable 5 m (16 ft), transport case, USB cable, Bluetooth adapter, Windows software, 4 x 3 m (10 ft) ground braid set, 2 x C-clamp, field test box, generator cable 18 m (59 ft), measure cable 18 m (59 ft), manual AC-19090

FRAX 101, incl. battery, complete with: ac/dc adapter, mains cable, ground cable 5 m (16 ft), transport case, USB cable, Bluetooth adapter, Windows software, 4 x 3 m (10 ft) ground braid set, 2 x C-clamp, field test box, generator cable 18 m (59 ft), measure cable 18 m (59 ft), battery pack, manual AC-19091


Item 7B

IDAX 300Insulation Diagnostic Analyzer

Fast and accurate moisture assessment inpower transformers

Well proven technology; IDA/IDAX unitshave been in field use for more than 10years

Reliable results at any temperature

Automated analysis of moisture contentand oil conductivity — decisions at yourfinger tip

True frequency domain measurement forhighest noise immunity

Performs non-intrusive insulation testingof transformers, bushings, cables andgenerators


DESCRIPTIONIDAX 300 provides an accurate and reliable conditionassessment of insulation in transformers, bushings,generators and cables. The IDAX 300 system maximizesthe outcome of maintenance activities allowing for loadand service life optimization.

IDAX 300 is smaller, lighter and faster than its predecessorIDAX 206. It maintains the same accuracy and ability toprovide reliable data using true DFR (Dielectric FrequencyResponse), also known as FDS (Frequency DomainSpectroscopy), without compromises. The state-of-the-artsoftware makes testing both easier and faster, allowingtransformer moisture assessment in less than 18 minutes.

IDAX 300 measures the capacitance and tan delta/powerfactor of the insulation between power transformerwindings at multiple frequencies. Plotting the results as acurve makes it possible to assess the condition of the oiland solid insulation, assess the moisture level in the solidinsulation and other potential insulation problems. The testcan be performed at any temperature.

APPLICATIONWith an aging power transformer population, today’selectrical utility industry faces a tough challenge astransformer failures and consequent repair and revenueloss costs millions of dollars. Transformers have becomeone of the most mission critical components in theelectrical grid. The need for reliable monitoring anddiagnostic methods drives the world’s leading experts toevaluate new technologies that improve reliability andoptimize the use of every grid component [1].

IDAX is a revolutionary insulation diagnostic instrumentbased on DFR (Dielectric Frequency Response), alsoknown as FDS (Frequency Domain Spectroscopy). Thisanalysis technique has been used in laboratories fordecades and IDA/IDAX was the first instrument designedfor field use (1997). The IDA/IDAX instrument andmeasurement principle has been used and verified aroundthe world over the last ten years.

One of the most important applications for IDAX is todetermine the moisture content in transformer insulation.Moisture in the insulation significantly accelerates theaging process. Moisture can cause bubbles betweenwindings, resulting in catastrophic failures. IDAX providesreliable moisture assessments in one test. The test can bemade at any temperature and takes less than 18 minutes.

Decisions on maintenance and/or replacement should bebased on knowing the condition of the insulation and theexpected loading of the unit. Adding just a few operationalyears to the expected end-of-life for a transformer,generator or cable by optimizing the working conditionbased on reliable diagnostic data means substantial costsavings for the equipment owner.

The FDS technology can also be used to assess thecondition and aging of the insulation in bushings, CTs andcircuit breakers. Numerous ongoing research projects atinstitutes and universities around the world is addingexperience and value to users of IDAX.

Water in Oil vs. PaperAssessing reliable moisture content in transformerinsulation based on oil sample tests is unreliable as thewater migrates between the solid insulation and oil astemperature changes. An oil sample has to be taken atrelatively high temperature and when the transformer is inequilibrium. Unfortunately, this is a rare state fortransformers thus resulting in unreliable assessments.

Figure 1 shows how the significant and potentially criticaldifference of 0.5% respectively 3.0% moisture in paper,correlates to the insignificant difference of 1 respectively 4Parts Per Million (PPM) in an oil sample obtained at 20oC(68oF) [2].

The TestDielectric loss or power factor is frequency andtemperature dependent, so by injecting test signals atdiscrete frequency steps typically between 1 kHz and 1-2mHz while recording results at each point, a curve iscreated (Fig 2).

This profile represent the properties of the insulationmaterial in the transformer and will be used in furtheranalysis as described below. The oil temperature isrecorded to be used in the model analysis describedbelow.

The ModelThe insulation between the windings in a transformerconsists of a solid and a liquid part. The solid part consistsof barriers and spacers to create an oil duct for coolingpurposes (Fig 3). The model formula varies all insulationparameters to simulate every possible geometrical design.The model also applies Arrhenius equation to compensatefor temperature dependence in the material [3].

The IDAX software creates new model curves andcompares them to the measured curve until the bestpossible match is reached. The final results are presentedas a percent of moisture in paper and a separate value foroil conductivity (Fig 4 and 5).

What Controls the Curve?The general rule is that moisture is visible in the highestand in lowest frequencies. Oil conductivity is dominant inthe medium frequency and the temperature shifts the curveto the right and to the left respectively (Fig 6).


Figure 1: Water in oil vs. paper correlation is unreliable at low temperature

Figure 2: Power factor curve presented as capacitance and loss

Figure 3: Typical insulation design

Figure 4: Before matching — green-model, red-measurement Figure 5: After matching — result: 0.4% at 20oC


One Point Is Not EnoughTraditional tan delta/power factor testing provides onevalue at mains frequency 50/60 Hz. This is where theIDAX method makes the difference. Figure 7 show that asingle power factor value cannot provide conclusiveinformation about the potential problem. At best it canprovide information that a problem exists. In this example,two transformers have the same power factor value at 60Hz. However, one of them is wet (3.6%) and should beconsidered for a dry-out while the oil in the other unitshould be replaced or refurbished. The IDAX methodprovides accurate and conclusive information in one test.

Test ProcedureThe test preparation and procedure is similar to a standardtan delta/power factor test, which means that thetransformer has to be off-line and preferably disconnected.

The IDAX software operates on Windows XP and Vistaand utilizes standard USB communication. The softwareguides the user through a test template where allconnections are illustrated in Figure 8. Color markings onclamps makes it easy to connect according to the built ininstructions. The test can be started as soon as the testcables are connected. Error messages on the screen informthe user if there are any problems with connections orcables.

IDAX 300, in the standard version, is equipped with aninput circuitry capable of measuring multiple test modeswithout having to change cable connections on thetransformer. As an option, the IDAX 300 can be equippedwith an additional current measurement channel thatallows for two completely independent measurements atthe same time, thus minimizing test time.

The calibration set enables simple and reliable calibrationof the IDAX system. It also reduces instrument downtimeand transport cost as the calibration box is the only partthat needs to be sent in for calibration. The new designallows calibration in any local certified calibration facilityto avoid long shipment turn-around times and transportcosts.

ConclusionIDAX is a well-proven system for determining moisturecontent in transformer insulation. The instrument andmethod including the modeling software has been testedand verified with numerous customers.

References[1] S.M. Gubanski, J. Blennow, L. Karlsson, K. Feser, S.

Tenbohlen, C. Neumann, H. Moscicka-Grzesiak, A.Filipowski, L. Tatarski “Reliable Diagnostics of HVTransformer Insulation for Safety Assurance of PowerTransmission System” Cigre Paris Aug 2006

[2] From. P. J. Griffin, C. M. Bruce and J. D. Christie:“Comparison of Water Equilibrium in Silicone andMineral Oil Transformers”, Minutes of the Fifty-FiftyAnnual Conference of Doble Clients, Sec. 10-9.1, 1988

[3] U. Gäfvert, L. Adeen, M. Tapper, P. Ghasemi, B.Jönsson, “Dielectric Spectroscopy in Time andFrequency Domain Applied to Diagnostics of PowerTransformers”, Proc. Of the 6th ICPADM, Xi’an, China,2000

Figure 6: Oil conductivity and moisture influence

Figure 7: Blue — dry with bad oil. Red — wet with good oil

Figure 8: Example of connections to a three-winding transformer


Item (Qty) Cat. No.

IDAX 300 complete with:mains cable, ground cable 5 m (16 ft), USB cable, transport case, Windows software, manual, generator cable 18 m (59 ft), measure cable 18 m (59 ft) red, measure cable 18 m (59 ft) blue, soft case for cable AG-19090

IDAX 300, 2 channels, complete with:mains cable, ground cable 5 m (16 ft), USB cable,transport case, Windows software, manual, generator cable 18 m (59 ft), measure cable 18 m red (59 ft), measure cable 18 m (59 ft) blue, soft case for cable AG-19092



IDAX300_DS_en_V01

Item (Qty) Cat. No.


Calibration set for IDAX 300 AG-90010

IDAX demo box IDB 300 AG-90020

2nd channel option for IDAX 300 AG-90200

Ground cable, 5 m (16 ft) GC-30060

Generator cable, 9 m (30 ft) GC-30310

Measuring cable, 2 x 9 m (30 ft), red GC-30320

Measuring cable, 2 x 9 m (30 ft), blue GC-30330

Generator cable, 18 m (59 ft) GC-30312

Measuring cable, 2 x 18 m (59 ft), red GC-30322

Measuring cable, 2 x 18 m (59 ft), blue GC-30332

IDAX for Windows SA-AG101

SPECIFICATIONS

OutputVoltage/current ranges, 10 V: 0 - 10 Vpeak 0 - 50 mA peak

Voltage/current ranges, 200 V: 0 - 200 Vpeak 0 - 50 mA peak

Frequency Range: 0.1 mHz - 10 kHz

Measurements Inputs: Channel 1, channel 2, ground

Capacitance Range: 10 pF - 100 µF

Accuracy: 0.5% + 1 pF

Dissipation Factor Range: 0 - 10 (with retained accuracy ofcapacitance; otherwise higher)

Accuracy: >1% +0.0003, 1 mHz - 100 Hz, C > 1 nf

>2% +0.0005, 100 Hz - 1 kHz, C > 1 nF

Noise Level: Max 500 µA at 50 Hz/60 Hz

Test Modes, 2 Channels: UST-1, UST-2, UST-1+2, GST, GST-Guard-1, GST-Guard-2, GST-Guard-1+2. With 2-ch measurement optionadditionally UST-1+UST-2, UST-1+GST-Guard-2, UST-2+GST-Guard-1, UST-1+2+GST

Calibration: Calibration set allows fieldcalibration, recommended interval2 years

GeneralMains Input (nominal): 90 - 265 V ac, 50/60 Hz

Power Consumption (max): 250 VA

Communication Ports: USB 2.0 and LAN

Physical Instrument Weight: 4.9 kg/11 lbs

Case and Instrument Weight: 9.9 kg/22 lbs

Accessories Weight: 8.5 kg/18 lbs (soft bag)

Dimensions: 335 x 300 x 99 mm

17.7 x 6.3 x 16.1 in

Dimensions with Case: 520 x 430 x 220 mm

20.5 x 17 x 8.7 in.

Environmental Operating Temperature: 0°C to +50°C /-32°F to +122°F

Storage Temperature: -40°C to 70°C / -40°F to +158°F

Humidity: <95% RH, non-condensing

CE Standards: IEC61010 (LVD) EN61326 (EMC)

PC Requirements Operating System: Windows 2000/ XP / Vista

CPU/RAM: Pentium 500 MHz/512 Mb or better

Interface: USB 2.0

8.PD Measurement for

MV and HV.

(Applicable to latest

measurement on

Switchgear &

Transformer)

Item 8A

Item 8B

Partial Discharge Online Testing Technology

Scope of supply:

Item 1 3 Phase PD Spot Tester - Type: OSM-Longshot© WR Xi (new Waverunner Xi model)

Hardware Description:

Digital PD Detector comprising of a fully calibrated wideband, 4-channel digitizing oscilloscope module, frequency range DC to 400MHz.

Supplied with internal 2 GHz pentium PC.

This allows for 3-phase testing/monitoring of HV Plant including: motors / generators, cables / switchgear, transformers and other HV Plant.

The input impedance to the unit is 50 Ohms allowing for connection of High Frequency Current Transformers (HFCT’s) Ferrite & Rogowski), Capacitive Couplers (TEV sensors), Acoustic/Ultrasonic Sensors for on-line PD testing and blocking capacitors etc for off-line testing.

Supplied with Full Instruction Manual, Mini Keyboard, Optical Mouse and 1x 40GB USB Hard Drive and a set of 4x 20m BNC test cables and 4x 50Hz Filters.

The equipment is designed to operate on ac mains supply systems from 110V to 240V, 50-60Hz. The unit is supplied with a soft carry case for ease of transportation.

The OSM-Longshot© Waverunner Xi Unit is supplied with a 36 month Warranty (in normal use)

Software Description:

The Unit is supplied pre-programmed with 4x Integrated PD Software Packages, all of which run under the WindowsTM operating system, as follows:

PD Gold© Data Capture and Measurement Software

For collecting synchronous, 50/60Hz Power Cycle PD data, with automatic collection of individual PD Pulses.

The software contains a dedicated ‘Machines’ Module dedicated to the measurement of PD Data in Rotating HV Motors and Generators.

PD Reader© Data Analysis and Reportage Software

This ‘reads’ the PDGold© files collected and automatically analyses the data collected using the ‘Event Recogniser’ Software Module.

The software allows for standard PD Test Reports to be automatically generated.

A PC software version is also provided to allow post-analysis of the PD Data on any PC

of 6 June 2007

ScopeControl© PD Pulse Capture Software

This allows the user to collect individual PD pulses from up to 4 channels simultaneously enabling the user to carry out time-of-flight measurements of PD pulse arrival on a number of PD sensors at once.

ScopeControlReader© PD Pulse Analysis and Reportage Software

This reads the individual PD pulses collected by the ScopeControl© software from up to 4 channels simultaneously enabling the user to carry out post-test analysis of the PD data collected in the field.

A PC version of this software is also provided to allow post-analysis of the PD Data on any PC owned by the customer.

Free upgrades on the above software packages are provided for 12-months from the date of purchase. Software support packages are available beyond this 12-month period on request.

PDGold©

The PDGold© program (Main Page shown below) contains all the functions that allow control of the OSM-Longshot instrument, to set the correct values of the acquisition parameters, to acquire and visualise the PD dataset in order to get an immediate diagnostic response.

PDGOLD© PD ACQUISITION SOFTWARE - MAIN PAGE

The PDGold© software collects the PD data in 200x ‘slots’ across the 50Hz (or 60Hz) power cycle, one cycle at a time, followed by a processing stage of a few seconds, followed by the acquisition and processing of a second cycle and so on.

Each signal acquired is synchronised by the AC mains voltage waveform supply (or other volatge signal). The software thus allows the user to observe this 360o plot of the PD behaviour showing both the individual 20ms ‘shots’ and the cumulative measurements of all those taken up to that point, in ‘real-time’.

For the standard PDGold© measurement this would be left to run typically for 3 to 5 minutes with around 100 to 200 individual power cycles usually saved.

of 6 June 2007

Item 2 PD Sensors and Accessories

1x External, Low Voltage PD Calibrator Type HVS 998/0011

Battery operated PD Calibrator for injecting a known PD signal across the test circuit.

Provides four selectable outputs, 10pC, 100pC,1000pC and 10,000pC

3 x Rogowski Coil Type HVS 994C.T. Split

Split-Core RF Current Transducer Type HVS 994C.T. with 95mm internal diameter for connection around the core of HV supply cables to the test circuits.

Suitable for HV Motor/Generator Testing with high supply currents as the Rogowski Coil Sensors do not Saturate with high currents passing through them.

One transducer is required per circuit to be monitored.

3 x Ferrite HFCT Type: CAE 140/100 Split

High Sensitivity, Split-Core RF Current Transducer Type CAE 140/100

Split with 100mm internal diameter for connection around the earth screen of HV supply cables to the test circuits.

Suitable for HV cable and switchgear testing where higher sensitivity to PD activity is required (when compared with Motor Testing).

One transducer is required per circuit to be monitored.

1x Acoustic Probe kit Type HVSL - AA-b40

Acoustic kit comprising of a Magnetic Airborne Acoustic probe, Air Acoustic probe and Conditioning Amplifier with power unit.

3 x Capacitive Probe Coupler Type HVSL TEV

Magnetic Capacitive Probe for the measurement of PD signals emanating from inside Metalclad HV plant, particularly metalclad switchgear etc.

One transducer is required per switchgear panel to be monitored.

4x 50HZ Filter-Decoupler Units

8 x 10m BNC Data Cables + 6 x Through Connectors

(to make 4x 10m, 4x 20m or 2 x 40m BNC data cables for PD testing )

1x IP67 Rated Equipment Case for above items

The above sensors are supplied in a waterproof equipment case fitted with foam inserts and compartments.

Customer Training Packages - for users of OSM-Longshot© PD Spot Testers

Due to the technical nature of the OSM PD test technology, IPEC/HVSL strongly recommend that the customer purchases a dedicated training course in order that they get the maximum performance out of the OSM technology.

of 6 June 2007

1.0 OSM-Longshot© PD Spot Testers

OSM PD Spot Testers listed contain the Standard PDGold© Software which has used been used in the IPEC PD Spot Testers for the past 5 years.

• The PD Gold© Software’s functionality includes:

Capture of signals synchronously across the 50Hz (or 60Hz) power cycle

Provides a PD (partial discharge) threshold level for recording the number of pulses (count) per cycle

• Noise waveforms using a second channel can be used for ‘gating’ external pulsed interference

The software divides the power period into slots, and the peak signal is then detected for each slot, allowing the user to observe familiar phase-related patterns of discharge.

PD levels are given in mV and dB as standard and also in pC for cable testing when used with calibrated HFCT’s.

• A new event recogniser system is incorporated into the analysis software

Keeps segments of the PD waveforms

Classifies these PD pulses into three types: Cable PD, Switchgear PD and Noise.

This can often eliminate the need for background noise reduction.

A machine page is available for testing high voltage rotating machines (motors/generators)

• Full print preview page for outputting results to printers or adobe pdf files

The spot tester is designed for a wide variety of use including on-line PD Testing of the insulation in HV Cables, Switchgear, Transformers, Motors/Generators and other HV Plant.

It is very able to measure on-line PD activity, and the system is offered with a variety of sensors for this type of work.

The system is also capable of accurate laboratory measurements, where synchronous voltage measurements and PD calibrations are needed. The time for which measurements can be recorded is only limited by the internal RAM of the PC.

It is not unusual to run the system for several hours up to a week, with continuous data monitoring.

The 1.0 OSM-Longshot© PD Spot Testers unit is not sold primarily as a monitoring device (it’s primary use being PD ‘Spot Testing’.

These spot testers are not specifically designed to be permanently installed and driven remotely, and whilst this is entirely feasible, other options are available for the permanent monitoring application.

The PDGold© Longshot system can be considered as the most versatile (and best) PD spot testing device on the market.

It is generally regarded that PD monitoring should be carried out by permanently installed PD Monitors with web/remote access (for information on long-term PD Monitoring Technologies contact your supplier).

The applications for on-line testing tend to be plant specific. Hence there are cable related parts to the event recogniser analysis. Here the results can be expressed in pC so that discharges on all cable types, and at all detectable distances down the cable, can be compared in magnitude.

There are also switchgear related parts to this, where the results can be expressed in dB to relate back to the traditional way switchgear PD results were displayed.

9. Transformer Oil

Dielectric Test Set

Item 9A

OTS60PB, 60AF/2, 80AF/2, 100AF/2, VCM100Automatic Oil Test Sets

DESCRIPTION

The Megger range of automatic oil testers offer fullyautomatic testing with many advanced features. The designallows the operator to simply prepare an oil test vessel,load it with the sample oil, place it in the chamber andinitiate the test sequence. The test set then carries out, theseries of tests as specified in a large number of oil testingspecifications. These define the sequence of tests includingthe stand and stir times, rate of voltage rise and number oftests resulting in a calculation of the average value of theoil breakdown strength. Withstand or proof testing canalso be selected. This test subjects the oil to a preselectedvoltage for 1 minute to check for a breakdown.

The OTS60PB is a fully automatic, battery powered,portable oil test set. The test voltage is electronicallycontrolled to the maximum of 60 kV. Designed for on sitetesting, the instrument is supplied in a rugged carryingcase with a handle for ease of transportation. An internalrechargeable battery gives a large number of tests beforerecharging. A clear display shows a menu of test optionsand guides the operator through the set up programme,illustrates the correct test electrodes and gap to use, showsthe progress of each test and gives the results of the testsequence. The result can be set to give either a numericalaverage (with standard deviation where specified) or apass/fail message. The display can be set to read inEnglish, French, German, Italian, Spanish and Portuguese.An optional printer kit enables hard copies of results to beproduced. Accessories, such as the battery charger, sparevessels, spare electrodes and a spacing gauge are located

in an attached compartment. Stirring is carried out by amotor driven paddle stirrer.

The OTSAF/2 range are laboratory instruments with manyadvanced features. Three versions are available withmaximum test voltages of 60 kV, 80 kV and 100 kV. Theyoffer fully automatic operation plus the benefit of a builtin printer to produce a hard copy of the test results andthe ability to program up to five user defined tests forindividual applications. The withstand test can be set tooperate at any test voltage and with an initial stand time.The dot matrix liquid crystal display can also be set toread in one of six languages. An oil test vessel, configuredto suit the IEC156 test specification, is supplied with theinstrument.

A large, backlit, liquid crystal display shows test menus,set up screens and results. The resolution of the highvoltage output is displayed to 0,1 kV.

Results can be printed on the internal dot matrix printer ortransferred via the RS232 interface to an external printer orPC. Printouts are automatically time and date stamped.

Standard stirring with the OTSAF/2 is achieved by amagnetic stirrer bar. Additional vessels are availableoptionally, including one suitable for testing to the ASTMD1816 specification. This calls for stirring to be carried outby a motor driven impeller. Each test can be selected witheither magnetic stirring, propeller stirring or no stirring.

The VCM100 is a calibration meter suitable for verifyingthe calibration of oil test sets. The meter will enable the

Microprocessor controlled fully automaticoil test sets

Wide choice of vessels and accessories

Portable and laboratory units


high voltage output to be checked, traceable to nationalstandards, and is suitable for all recent laboratory modelsof Megger oil dielectric strength test sets such as theOTSAF series and the OTS auto and semi automatic series.

The calibration meter fits in the oil test set chamber inplace of a standard vessel. The design ensures that theload to the transformer is similar to the load during an oildielectric strength test. The voltage indication is viewed onan analogue display marked from 0 to 100 kV with 2 kVdivisions. The scale also shows pass tolerance bands toenable a quick assessment of the accuracy to be made.The meter is supplied in a protective bag.

Oil test sets will display the individual breakdown voltageand their average value. The VCM100 allows the actualapplied voltage to be quickly and easily checked againstthe displayed value giving immediate confidence in thecalibration of the oil test set.

OTS/VCM100 Allows a quick check of high voltage output to be made` Tests up to 100 kV with accuracy of 3% Easy to read mirror arc display with tolerance bands

OPERATION

The OTSAF/2 series are programmed with a test sequencesuitable for using the VCM100 called ‘CHECKCALIBRATION’. This sequence causes the output of the oiltest set to ramp up from 0 kV to the maximum voltagevalue, pausing at each 10 kV point for 10 seconds to allowthe calibration to be checked.

Other versions of Megger oil test sets (such as the OTSAF,OTS60 auto and OTS75 auto) can be used in manualmode or with a low rate of voltage rise to allow checking

with the VCM100. Later versions of the OTSAF also havethe ‘CHECK CALIBRATION’ procedure.

SPECIFICATION

Panel meter scaling 0 - 100 kV in 2 kV divisionsAccuracy ±3% of full scale

Temperature RangeOperational 0°C to 40°C (32 to 104°F)Storage -30°C to +70°C (-22 to 158°F)

Humidity Range Operational 80% RH at 40°C (104°F)Storage 93% RH at 40°C (104°F)

Safety The meter is only approved for use with Megger oil test sets.Dimensions 198 mm x 235 mm x 102 mm

(7,8 x 9,25 x 4 inches)Weight 2,4 kg (5,3 lbs)

OTS VCM100 Scale Plate


Parameters of test specifications (programmed in OTS60PB, OTS60AF/2, OTS80AF/2 and OTS100AF/2)

Test Spec. Electrode Initial Rate of rise Intermediate Intermediate Number Maximum Duration of SelectedSelected Shape Stand of Test Stir Time Stand Time Of Tests test sequence

Voltage OTS60B OTS80AF/2 OTS100AF/2 OTS60AF/2

5min test B 1 min. 2kV/s 30 s 30 s 3 4min. 30s 5min. 5min. 30s

IEC156 etc A,B 5 min. 2kV/s 2 min. 2 min. 6 18min. 19min. 20min.(option 1) (option 2)

ASTM D877 C 2 min. 20 s 3 kV/s - 1 min. 5 8min. 8min. 33s 9min. 7s

ASTM D1816 A 3 min. 0,5 kV/s Continuous 1 min. 5 17min. 20 min. 20s 23 min. 40s

UNE21 A,B 10min. 2 kV/s 1 min. 4 min. 6 38 min. 39 min. 40 min.

Withstand A B 0-99 min 55s ** 2 kV/s Ramps to preselected value of 1 minute or breakdown

Withstand B B 0-99 min 55s ** 2 kV/s As above and continues to breakdown or maximum value of test set

Custom (1-5)* - 0-99 min 55s * 0,5-5,0 kV/s* 0-99 min 55s* 0-99 min 55s* 1-99 - - -

BS5730a A,B - 2 kV/s 1 min. 1 min. Withstand test at 22 kV, 30 kV or 40 kV (depending on equipment category and electrode gap) for 60 s.If breakdown occurs another two tests are carried out, both must pass if sample is OK.

IEC156 etc. includes BS148, BS5874, VDE 0370, NFC 27, CE1344, OCT 6581, SABS555, AS1767, STA8286 and IP295.NFC27, STAS286 and UNE21 omit the first breakdown value from the average calculation.STAS286 has a 2 minute intermediate stand time.

The OTS60PB is also programmed with BS5730-LEPLC which is similar to BS5730a but ramps to breakdown after a successful test.* User Schedule

** OTSAF/2 only.


OTS60PB OTS60AF/2, OTS80AF/2 AND OTS100AF/2

Features Powered by internal, rechargeable battery Automatic laboratory set (see table opposite) Fully automatic operation (see table opposite) Built in printer and RS232 output Pass/fail limit setting Custom test facility

Test voltage 60 kV maximum (30 kV - 0 - 30 kV) OTS60AF/2:60 kV maximum (30 kV - 0 - 30 kV) @ 61,8 HzOTS80AF/2:80 kV maximum (40 kV - 0 - 40 kV)

OTS100AF/2:100 kV maximum (50 kV - 0 - 50 kV)

Power Internal, rechargeable 12 V, 12 Ah battery 110 V, 120 V, 220 V, 240 V ±10%supply (giving typically 12 hours continuous use) 50/60 Hz

Charger supply 85 to 265 V, 50/60 Hz Four pre-selectable values

Optional 12 V supply lead enables operationfrom vehicle cigarette lighter socket

Display Dot matrix LCD giving alphanumeric information and kV test voltage

Resolution 1 kV 0,1 kV

Dimensions 373 H x 259 W x 247 D mm(without accessories) 464 H x 502 W x 319 D mm14,6 H x 10,2 W x 9,8 D in. approx. 18,3 H x 19,7 W x 12,5 D in. approx.

Weight 19 kg (42 lb) without accessories 41 kg (90 lb) approx.Fuses 2 x F6,3 A, IEC127/1, 20 mm x 5 mm, HBC 2 x F6,3 A, IEC127/1, 20 mm x 5 mm, HBC

T2 A, IEC127/5, 20 mm x 5 mm, HBC for 220/240 VT4 A, IEC127/5, 20 mm x 5 mm, HBC for 110/120 V

Temperature Operation: 0°C to 40°C Operation: 0°C to 40°C

Range Storage: -30°C to +65°C Storage: -40°C to +70°C

Humidity Operation: 80% RH at 40°C Operation: 80% RH at 40°C

Range Storage: 93% RH at 40°C, 95% RH at 25°C cyclic Storage: 93% RH at 40°C, 95% RH at 25°C

Safety Designed to incorporate where appropriate Meets the requirements of IEC1010-1 (1991)

IEC1010-1, safety class I. Safety interlock to BS5304 (1988) ‘Guarding ofSafety interlock to BS5304 (1988) ‘Guarding of Machinery’ standard.Machinery’ standard.

Other RS232 output plus optional printer kit RS232C 5 pin DIN socket

Includes battery charger and four test vessels Five custom tests allowing; 1 to 99 testsOption to set pass/fail breakdown values 0,5 to 5 kV/s rate of voltage rise

0 to 99 min. 59 s stir and stand timesAveraging start from first to last test

ORDERING INFORMATIONItem (Qty) Order CodeLaboratory Oil Test Set

60 kV OTS60AF/2

80 kV OTS80AF/2

100 kV OTS100AF/2

Included AccessoriesMains power supply lead 25424-860

Oil test vessel fitted with spherical electrodes,

0,5 in. (12,7 mm) dia, shape B 6231-445

Oil test set preparation kit 6121-486

comprising;

2 magnetic stirrers,

2 mushroom electrodes 1.4 in. (36 mm) dia.,

2 cylindrical electrodes 1 in. (25.4 mm) dia.,

electrode spacing gauge; 1, 2, 2,5 and 4 mm spacing

Protective cover 5340-334

Operating instruction book 6172-064

Optional Accessories for OTS AF’sOil test vessel fitted with mushroom

electrodes, 36 mm dia, shape A 6231-447

Oil test vessel fitted with cylindrical electrodes,

1 in. (25,4 mm) dia. shape C 6231-446

Oil test vessel with motorised stirrer suitable

for testing to ASTM D1816, electrodes shape A 6111-146

Transportation trolley 6111-147

0-100 kV Voltage calibration check

meter complete with case 6410-810

Item (Qty) Order CodePortable oil test set (60 kV) OTS60PB

Included AccessoriesPadded protective carrying case with handle

and shoulder strap 6420-102

4 x 600 ml capacity oil test vessels without lid

Pair of spherical electrodes (fitted) 6220-484

Pair of mushroom electrodes 6220-580

Pair of cylindrical electrodes 6220-483

Electrode spacing gauge for 2mm, 2.5mm and

4mm spacing 5250-211

Battery charger unit 6331-659

Printer lead, OTS 60PB to 25 way ‘D’ 6340-091

Spare fuse 25413-285

User Guide 6171-585

Optional Accessories for OTS60PBClose fitting test vessel lid 6121-402

Pack of 10 reuseable/disposable oil test vessels 6220-487

Lead for connection to a vehicle battery via the

cigar/cigarette lighter socket 6231-509

Pair of cylindrical electrodes with 0,5 mm

edge radius 6220-538

Printer kit 6220-568

Paper roll - 57,5 mm wide, 15 m long,50 mm dia. 25995-001

Ribbon - Epson part no. ERC-09 (IRC 160) 25995-002

Download lead 6340-105


Electrode Shape A36mm Mushroom Electrodes

Electrode Shape B 12,7 mm (0,5 in) Spherical Electrodes

Electrode Shape C25,4 mm (1 in) Cylindrical Electrodes

Electrode Shape D25,4 mm (1 in) Cylindrical Electrodeswith 0,5mm edge radius

PRINTER INFORMATION

The OTS60PB Printer Kit includesa 24 column impact printer withintegral rechargeable batteries anda mains adaptor which operatesfrom 85 V to 265 V a.c. (50/60 Hz).

The printer is 105 mm x 195 mmx 90 mm and weighs 625 g.

10.Transformer Oil

Moisture Test Set

Item 10A

KF875, KF-UNI and KF-LAB Karl Fischer Moisture in Oil Test Sets

Coulometric Karl Fischer titrimetry

KF875 optimized for insulating oil and tests to 0.875, completely portable

KF-UNI offers greater flexibility,versatility and sample data input than the KF875; also completely portable

KF-LAB analyzes materials with an SGbetween 0.6 & 1.4, plus insulating oilswith an SG of 0.875

Suitable for use with any CoulometricKarl Fischer reagent


DESCRIPTIONOver 20 years experience has led to the development ofthe Megger KF875, KF-UNI and KF-LAB Coulometric KarlFischer Test Sets designed to determine moisture in oil, to provide highly accurate results on-site. The KF875 andKF-UNI are highly portable instruments, complete withintegral printer and carrying case, are easy to use andprovide highly accurate results. The KF-LAB unit isdesigned specifically for lab use is mains powered onlyand does not include a built-in battery or carrying case.

APPLICATIONOptimized for testing insulating oils with a specific gravityof 0.875, the Megger KF875 simply requires the operatorto press one button and inject a 1ml sample into the testcell. The simple ‘one touch’ operation makes the KF875so easy to use that it requires no specialist knowledge ortraining to use it effectively. Results are presented on theinstrument display and on the integral printer in bothmicrograms of water and in milligrams per kilogram (parts per million, ppm).

The KF-UNI allows the titration of samples with a range of specific gravities from 0.60 to 1.40 and also permits theuse of different sample sizes. The printer may be disabled

if not required and results can be calculated in ppm,mg/kg, % and micrograms. For extra flexibility, theresults may be calculated based on the weight of thesample or based on the volume and specific gravity of the sample.

The KF-LAB analyzes materials with an SG between 0.6 and 1.4, but also has a default setting optimized foranalyzing insulating oils with an SG of 0.875. This meansit can be used to measure water content in a variety ofdifferent materials but is also easy to set up for transformerinsulating oils.

KF-LAB Unit

KF875 Unit

KF-UNI Unit

KF LAB KF UNI KF 875

Titration method Coulometric Karl Fischer Titration

Electrolysis control Patented “ACE” control system

End point detection AC polarisation

End point indication Visual display / print out / acoustic beep

Measuring range 1 µg – 10 mg water

Moisture range 1 ppm – 100 % 1 ppm – 100 ppm

Max. sensitivity 0.1 µg

Max. titration speed 2 mg per minute

Max. current 400 ma

Drift compensation Automatically controlled

Precision 10-100µg ± 3µg, 100µg - 1 mg ± 5µg, above 1 mg ± 0.5%

Method storage 10 programmable methods Single method Preset method

Sample ID number User programmable Not available

Display format µg, mg/kg, ppm, % mg/kg, ppm

Print format µg + mg/kg, ppm, % µg + mg/kg, ppm

Calculation modes Weight/weight Weight/weight Volume/density

Weight/dilution ratio User programmable Preset values

Volume/volume Volume/density

Volume/density User selectable

User programmable

Statistics Upto 99 runs Preset up to 99 runs

User programmable

Start delay time 0-30 mins. selectable 0-20 mins. selectable Preset

Min. titration time 0-30 mins. selectable Not available

Language English, Francais, Espanol, English

Portugues, Deutsch, Magyar

Stirrer speed Microprocessor controlled

Calendar / clock Analysis time & date print out

Keypad/User controls Non tactile membrane/display prompted menu

Display 40 character alphanumeric backlit display

Printer 42 character high speed thermal printer

Carry case Optional Standard

Power supply 90-264VAC, 47-63Hz 90-264VAC, 47-63Hz

12V DC car adapter/internal battery

Battery life Not available 8 hours running time

Battery low Not available Display & print out indication

Dimensions 250 x 245 x 120 mm

Weight 3 kg (without carry case)


Each unit uses Karl Fischer coulometric titrimetry -the industry standard method for determining moisturecontent (ASTM D1533, BS EN 60814:1998, IEC 60814:1997).

The KF875 and the KF-UNI include a rechargeablebattery power - allows accurate on-site measurementsto be made on oil samples freshly obtained, eliminatingany time deterioration of the oil sample.

The KF875 and the KF-UNI may be powered byinternal rechargeable batteries or from the supply -allows field-testing and laboratory testing with the sameequipment, providing standardization.


FEATURES AND BENEFITS The KF875 and KF-UNI are highly portable and

designed specifically for outdoor use - both units aresupplied as standard with a printer, low drift cell andrugged carry case. Portability is further enhanced withflexible power options - both units can be poweredfrom the mains supply, from the internal rechargeablebattery or via a 12V car adapter.

Each unit eliminates inaccuracies with ACE ControlSystem - some Coulometric Karl Fischer sets aresusceptible to inaccuracies due to changes in electrolysiscell resistance, which requires frequent checking of thetitrator efficiency by analyzing known water contentstandards. The KF875, KF-UNI and the KF-LAB removethis need by using the patent pending ACE(Automatically Compensated Errors) Control System. Thisguarantees that the electrolysis current produced and thecount rate displayed are always correctly synchronized,regardless of changes to the electrolysis cell resistancethus eliminating the need to calibrate the reagent.This further adds to the instruments’ remarkable user-friendliness and ease of use.

Item (Qty) Cat. No.

KF875 Coulometric Karl Fischer Test Set for insulating oils KF875 [6111-636]

KF-UNI Coulometric Karl Fischer Test Set for liquids KF-UNI [6111-637]

KF-LAB Laboratory Coulometric Karl Fischer Test Set KF-LAB [6111-638]

Supplied Accessories (also available as spare items) for the KF875 and KF-UNI ONLY

Titration Vessel 6121-527

Detector electrode 6121-528

Generator electrode 6121-529

Drying tube 6121-530

Carrying Case 6121-537

Power Pack 6121-538

Car adapter 6121-539

Supplied Accessories (also available as spare items) for the KF875, KF-UNI and KF-LAB

Injection septa (10) 6121-531

Glass syringe (1 ml) 6121-532

Luer needle 6121-533

Bottle of Molecular sieve 6121-534

Stirrer bar 6121-535

Funnel 6121-536

Supplied Accessories (also available as spare items) for the KF-LAB ONLY

Complete Glassware pack (single port) EV6121-587

Titration vessel (single port) EV6121-571

Detector electrode EV6121-572

Generator electrode EV6121-573

Drying tube EV6121-574

Teflon sleeves (pack 5 each) EV6121-575

Instruction manual EV6172-878


11. Transformer Oil

Treatment Plant

Item 11A

TECHNICAL DESCRIPTION

OF THE VACUUM OIL TREATMENT PLANT

TYPE THV 3000

OIL TREATMENT I–BETH49GB_0 page 1/5

TYPE THV 3000

Oil treatment

The plants type THV

have been designed to treat di-

electric oils having a 50 ppm

moisture content and a dissolved

gas content of approx. 10% by

volume before being treated.

Once the optimal treatment condi-

tions have been reached, the clean

treated oil goes out after 1 pass at

a maximum temperature of 70°C

with a moisture content below

5 ppm* and a dissolved gas con-

tent of approximately 0.1% by

volume*. This restores the oil di-

electric strength to a value in excess of 75 kV

after treatment. Starting from 20 ppm, mois-

ture content will go down to 3 ppm* after 1

pass. The above figures are reached with oils

having a 10-2 mbar distillation curve at a tem-

perature of 80° C.

Comparison between vapor and liquid phases

of moisture and dielectric oil

0,010,11101001000

0

20

40

60

80

100

120

T °C

mbar

s

WATER

OILLi id t

Vapor water

Liquid oil

V il

Evolution of the moisture content

and of the dielectric strength

0

20

40

60

80

100

KV

0

5

10

15

20

PP

M o

f w

ate

Dielectric strength

Moisture content

* : Theoretical values depending on themeasuring device accuracy and ranging from 2 to 5 ppm

PREAMBLE

The efficient and reliable use

of dielectric fluids in trans-

formers, circuit breakers and

other types of electrical

equipments depends upon

some of their basic charac-

teristics, which in service

may be affected, resulting in

reduced operating efficiency

of the electrical equipments.

In order to act as an insu-

lant, a coolant and an ex-

tinguishing medium, dielec-

tric fluids must have some

basic properties, and espe-

cially a high dielectric

strength.

Working on the principles

of filtration, dehydration

and vacuum degasification ,

the oil treat-

ment plants type THV

complete the range of stan-

dard equipments.

Equipment reliability, treatment quality and price competi-

tiveness remain the main key-points of our equipments.

THV plants have been specially designed to treat oil on a

storage tank or a collapsible supple tank and to fill up trans-

formers.

Reliable and easy to use, they are particularly recommended

for treating oil while commissioning new transformers, or

for treating oil tanks in workshops .

SUMMARY:

Principle of operation 2

Main characteristics 2

Components of the plant 2

Description of the plant 3

Flow diagram 4

Options 5

Page

Options :

Low speed trailer

Road trailer

Options :

Plant with tarpaulin

Plant with metallic cover

Options :

Transformer insulation

High level detection system

Options :

Voltmeter / ammeter

Options :

Remote control

I–BETH49GB_0 page 2/5 OIL TREATMENT TYPE THV 3000

Main characteristics

Nominal flow* during treatment in l/hr 3000

Heating power in kW 48

Total power in kW 56

Filtration** by cartridges in nominal µm 1

Limit vacuum against closed suction in mbars 0,08

Vacuum during treatment in mbars 0,5 to 2

* : Approximate values.

** : Consumable cartridges with filtration expressed in nominal µm.

Tropicalized electrical equipments are standard equipments on all of our plants.

Power supply 400 Volts 3 phases 50 Hz and auxiliary supply 220 Volts by transformer.

1 inlet coarse filter

1 direct electrical heater with 2 heating steps

1 dehydration tank

1 outlet oil motor-pump

1 cartridge filter

1 single-staged vacuum motor-pump

1 set measuring, controlling, alarming, and regulating apparatus

1 control panel

1 set of pipes, valves and accessories

3 lifting rings placed on the plant

The plant is installed on a section iron plate with retention tray and small rubber wheels.

Components of the plant

Principle of operation

The dielectric fluid enters

the plant through an inlet

strainer, and is then sucked

by vacuum* into an oil

heater, where it is heated by

immersion heaters. Then, the

dielectric fluid is sprayed

into a vacuum chamber on a

basket of degasifying rings.

Finally, the treated fluid

flows through the outlet oil

pump and then passes

through a filter composed of

fine filtration cartridges.

*Oil suction must take place in a tank at atmospheric pressure.


Maximum suction distance in m 10

Maximum depression in mbar -1000

Connection diameter in mm 40

Total heating power in kW 48

Number of thermodippers 6

Power of an element in kW 7,8

Flow in m3/hr 170

Limit vacuum in mbar 0,08

Motor power in kW 4

Rotation speed in rpm 1450

Oil capacity in litre 5

Vacuum measure Manometer

Auxiliary vacuum connection in mm 50

Maximum flow of the pump in l/hr 7000

Pump type Centrifuge

Height of discharge in mCE 40

Motor power in kW 3

Rotation speed in rpm 1500

Pump building Cast iron/bronze

Connection diameter in mm 40

Number of cartridges 6

Filter building Cast iron/steel

Clogging control Pressostat

3) Dehydration tank

The vacuum oil treatment plants type THV are equipped with a cylindrical

dehydration cell made of steel that contains a spraying blockhead and a basket of dehy-

dration rings. The upper part of the cell is equipped with an inlet oil connection, a con-

nection to the vacuum pump, a vacuum indicator 1000 to 0 mbar and a vacuum regulation

valve. The collar is equipped with a level sensor, a low tension window with projector to

look at the lower part of the cell and a foam regulation system. The lower part is equipped

with a flow regulation tube and a draining valve.

Oil degasifying under vacuum

4) Vacuum motor-pump

The vacuum oil treatment plants type THV are equipped with a single-staged

group composed of an oil sealed rotary vane type pump with filter, anti-return valve and

air ballast. The group is connected to the dehydration cell by a pipe equipped with a safety

valve, an insulating valve, a Manometer vacuum and an exhaust electro-valve of the

group.

5) Outlet oil motor pump

The outlet discharge of the vacuum oil treatment plants type THV is

equipped with an outlet oil motor-pump, a filter, a sampling cock, an anti-return valve, an

insulation valve and a symmetrical connection (like French fire system).

Oil outlet and fine filtration system

6) Fine filtration system

The vacuum oil treatment plants type THV are equipped with a consumable

cartridge filter with 1 µm nominal filtration, including a clogging control device.

Description of the plantOil heating and filtering

1) Oil inlet

The vacuum oil treatment plants type THV are equipped, at the inlet, with a

symmetrical connection (like French fire system), a strainer filter, an insulation valve and

an oil complement valve also serving as a heater drain.

2) Heater

The vacuum oil treatment plants type THV are equipped with a heater with

pipe stub heating casing, fitted with flanged thermodippers. The heater has 2 heating steps.

The heater outlet is equipped with a safety valve adjusted at 4 bars, an overheating safety

thermostat, a temperature regulation probe PT100 and a manometer -1 / +5 bars.


7) Control panel

The oil treatment plants type THV are equipped with an industrial waterproof

type cabinet in painted steel that contains the contactors, relays, fuses, connectors and wires

necessary for the equipment operation. On the door stand the buttons and warning lights of

the different equipment components.

8) Finishing painting

The oil treatment plants type THV are painted in white (RAL9002) for the sys-

tem and in blue (RAL 5012) for the platform.

9) Dimensions

* : the weight will not be higher than the mentioned value

** : the value does not include the length of the draw bar

Length in mm

Width in mm

Height in mm

Weight in kg

Plant on platform 2200 1620 2090 1500

Plant on skid 2200 1620 2890 1500

Plant on low speed trailer 2200** 1620 2320 2050

Plant on low speed trailer with tarpaulin 2200** 1620 2570 2150

Plant on low speed trailer with metallic cover

2200** 1620 2570 2650

Plant on road trailer with tarpaulin 2150** 1700 2790 2500*

Plant on road trailer with metallic cover 2150** 1700 2790 3000*

Characteristics may be modified without any prior notice.


Options

1) TRANSFER PUMP

This option enables to increase the length of the flexible hoses between the plant and the transformer.

2) HIGHER HEATING POWER

The standard heating power of the oil treatment plants has been calculated for a weight ratio between oil and trans-former about 4. In case of a higher ratio, we recommend to increase the heating power of the plant.

5) CONNECTION FEATURES AND ACCESSORIES

6) SPRAYING

1) TRANSFORMER DRYING

This option enables to create a vacuum in the transformer in order to dry the active parts while the oil is being treated. The pump is installed parallel to the first one to increase the pumping capacity of the plant.

2) DOUBLE-STAGED PUMPING GROUP

In this case, the primary vacuum pump mounted on the plant is completed with a second pump stage composed of a roots.

3) AUXILIARY VACUUM CONNECTION

This option enables to have an additional vacuum connection on the plant.

4) CONDENSER AND COOLING GROUP

This option enables an optimal protection of the pump group in case of high water content treatment.

Transformers drying(Vacuum technology)

1) LOW SPEED TRAILER

The oil treatment can be installed on a low speed trailer with full tyres (maximum speed : 20 km/hr).

2) ROAD TRAILER

The oil treatment plant can be installed on a road trailer. The trailer has rear lighting to meet the latest European traffic regulations requirements. The whole installation is commissioned by the French government vehicle testing service in order to be allowed to be driven in France and in the European countries.

3) TARPAULIN PROTECTION

The plant can be equipped with a tarpaulin type protection which protects it from bad weather.The tarpaulin can be opened on the four sides in order to enable the access to every plant components.

4) METALLIC COVER PROTECTION

The plant can be equipped with a metallic cover type protect ion which protects it from bad weather. The cover is made of aluminium and the frame is made of iron steel. The side panels open horizontally, close per key and are maintained thanks to gas jacks. The panels enable the access to the components of the plant.

Presentations

1) INSULATING SYSTEM

This option enables, in case of incident or of any sudden treatment failure (power cut), to insulate the plant from the electric appli-ance to be treated and thus prevents oil from flowing into the oil treatment plant.

2) HIGH LEVEL DETECTION SYSTEM

This option enables the automatic stop of the plant when the valve which protects the vacuum pump is full. This reinforces safety and avoids the transfer of the condensates in the vacuum pump.

3) AUTOMATIC DRAINING OF THE VALVE

This option enables an optimal protection of the vacuum network of the plant.

4) VOLTMETER / AMMETER

This option enables to visualize the power supply of the plant as well as the developed intensity in order to protect the network and the equipment .

5) RECORDER

This option enables to record the physical dimensions characterizing the degasifying process, like temperature and vacuum .

6) QUALITY CONTROL OF OILS

Different type of laboratory or portable equipment enable you to measure the main dielectric oil characteristics.

Process controls

Telecontrol TELECONTROL standard or GSM

Transformers drying(Oil heating and transfer)

12.Gases and

Transformer Oil

(Portable GC for

detection of 11 Gases)

Item 12A

Mobile Gas Chromatograph for Dissolved gas Analysis Version 2

( According to DIN / IEC 60567/567 )

Scope of delivery

- basic device with Windows control software for evaluating documentation and customer-specific settings

- thermal-conductivity detector (TCD) and flame ionization detector (FID), Methanizer

- furnace cassette with separating column and temperature-programmed column heating system, separate heating for each column

- internal carrier and burning gas supply (argon/hydrogen for approximately 80 operating hours)

- 2 capillary columns for determination of hydrocarbons C1-C3 withcomplete heating up to 300°C, 2. column for determination of permanent gases ( H2, Ar, N2, O2, CO, CO2) with complete heating up to 300°C

- Automatic, controlled gas sample valve with exchangeable 0,2 ml - dosing capillary, integrated in basic device. The valve is suitable for high pressure applications. Ready for operation. The sample is pumped with an internal diaphragm pump (time controlled by software).

- Automatic, controlled 6-port-valve, integrated in basic device. The valve is suitable for

packed as well as for capillary columns. - degassing is carried out by means of a gas extraction syringe

according to DIN / IEC 60567/567 ; the released gas is transferred to the GC by means of an injection syringe

For detection of 11 fault gases:

- H2, CH4, O, N, CO, CO2, C2H2, C2H4, C2H6, C3H6, C3H8

The scope of delivery includes the following components: - Calibration gas Peakmaster - 1 gas extraction syringe - 1 seal assembly for the gas extraction syringe - 2 three-way valves - 1 two-way valve

- 2 connectors - 1 tube connecting oil reservoir and syringe - 1 injection syringe - 1 Septen assembly (including 5 Septen) - 1 unit of leakage detector gas - 1 package of cleaning pads

following options are available:

Option: laptop as control computer: Pentium 133 MMX 1.4 GB hard disk/16 MB RAM 12.1 inch DSTN colour LCD display with touch pad The customer has to provide for Win 95 and Windows for Workgroups

Option: connection to external gas supply: cylinder adapter, inert pressure pipe needle valve for setting cylinder pressure security pressure relief valve, filter high-quality steel connector to the mobile GC

Option: carrier gas supply, cylinder with 2 litres of argon, 200 bar for approximately 1,200 operating hours

Option: hydrogen supply, cylinder with 2 litres, 200 bar for approximately 1,200 operating hours

Option: equipment case for mobile GC The scope of delivery includes the following components: - - 1 gas extraction syringe - 1 seal assembly for the gas extraction syringe - 2 three-way valves - 1 two-way valve - 2 connectors - 1 tube connecting oil reservoir and syringe - 1 injection syringe - 1 unit of calibration gas M 218 - 1 unit of calibration gas M 216 - 2 injection syringes with cannulas - 1 Septen?? assembly (including 5 Septen) - 1 unit of leakage detector gas - 1 package of cleaning pads

Multi-Tek International

103-105 Freston Road,London W11 4BD England

Tel: +44-20-73133190 Fax: +44-20-73133191

E-Mail: [email protected]

Item 12B

TO

P T

OG

A G

C

Top Toga GC

Dis

solv

ed G

as A

nal

ysis

wit

h

auto

mat

ic d

egas

sin

g u

nit

A

ccor

din

g to

IE

C 5

67/A

STM

361

2

Feat

ures

and

Ben

efits

:

» Fu

lly a

utom

atic

pro

cedu

re

» O

ne to

uch

oper

atio

n

» M

ulti-

perio

dic

vacu

um d

egas

sing

» Fu

ll TO

GA

anal

ysis

(11

gase

s)

» Au

tom

atic

tran

sfer

of g

as s

ampl

e

Dos

e th

e oi

l-sam

ple.

Pus

h O

NE

butt

on.

Wai

t for

the

resu

lt.

Des

crip

tion

The

anal

ysis

is do

ne in

2 s

teps

with

hig

h se

lect

ivity

and

accu

racy

fully

com

plia

ble

with

labo

rato

ry p

roce

dure

.

1. D

egas

sing

of th

e oi

l sam

ple

thro

ugh

vacu

um e

xtra

ctio

n

(acc

ordi

ng to

IEC

567/

AST

M36

12 )

2. D

issol

ved

gas

anal

ysis

TCD

(the

rmal

con

duct

ivity

dete

ctor

) , F

ID (

Flam

e Io

niza

tion

dete

ctor

) and

Met

hani

zer.

Both

ste

ps a

re s

ynch

roni

zed

by a

mic

ro-c

ontr

olle

r whi

ch

guar

ante

es a

fast

and

relia

ble

mea

sure

men

t rou

tine.

Tech

nic

al S

pec

ifica

tion

s

Deg

assi

ng U

nit

Type

»va

cuum

deg

assin

g pr

oced

ure,

oil-

and

mer

cury

-free

Vacu

um c

onne

ctio

ns

»D

N 1

6 KF

Vacu

um P

ump

»di

aphr

agm

pum

p

»ch

emic

ally

resis

tant

tree

-sta

ge

»co

mpa

ct m

odul

ar d

esig

n

»pu

mpi

ng s

peed

: 2,0

m3 /h

Vacu

um s

enso

r

»m

easu

ring

rang

e: 0

,1 –

200

mba

r

» re

ad-o

ut: 5

per

sec

»in

depe

nden

t of g

as ty

pe

» ac

cura

cy/h

yste

resis

: +/-

1 d

igit

Star

ting

vac

uum

:2

– 3

mba

r

Deg

assi

ng ra

nge:

2 –

200

mba

r

Reso

luti

on:

0,1

mba

r

Sam

ple

volu

me:

50

-100

ml

Prec

ondi

tion

ing

tim

e:

< 5

min

Typi

cal d

egas

sing

tim

e: <

2 m

in

Pow

er s

uppl

y:

230

V, 5

0/60

Hz;

115

V, 5

0/60

Hz

Gas

Chr

omat

ogra

ph

Basi

c un

it: b

asic

dev

ice

with

Win

dow

s co

ntro

l sof

twar

e fo

r

eval

uatin

g do

cum

enta

tion

and

cust

omer

-spe

cific

set

tings

Det

ecto

rs: T

herm

al C

ondu

ctiv

ity D

etec

tor (

TCD

) and

Fla

me

Ioni

satio

n D

etec

tor (

FID

), M

etha

nize

r

Colu

mns

: 2 c

apill

ary

colu

mns

, Car

boxe

n an

d M

oles

iev

Colu

mn

Hea

ting

: fur

nace

cas

sett

e w

ith s

epar

atin

g co

lum

n an

d

tem

pera

ture

pro

gram

med

col

umn

heat

ing

syst

em, s

epar

ate

heat

ing

for e

ach

colu

mn

Sam

ple

valv

e: A

utom

atic

, con

trol

led

gas

sam

ple

valv

e w

ith

exch

ange

able

0,2

ml –

dos

ing

capi

llary

, int

egra

ted

in b

asic

dev

ice.

Dim

ensi

ons:

app

rox.

600

x 5

00 x

550

mm

Wei

ght:

49 K

g

(com

ptel

e sy

stem

)

agkommunikation.at | lenzgrafik.com

13. Transformer Fault

Indicator (Online

Monitoring)

Item 13A

HY

DR

OC

AL

10

02

T

ran

sfo

rmer

On

line

Mo

nit

ori

ng

Sys

tem

Ana

lysi

s of

the

gase

s di

ssol

ved

in p

ower

tran

sfor

mer

oi

l is

rec

ogni

zed

as t

he m

ost

usef

ul t

ool

for

earl

yde

tect

ion

and

diag

nosi

s of

inc

ipie

nt f

aults

in

tran

s-fo

rmer

s.

Bes

ides

reg

ular

gas

chr

omat

ogra

phic

ana

lysi

s of

the

isol

atio

n oi

l of

pow

er t

rans

form

ers

onlin

e m

onito

ring

and

cont

rol s

yste

ms

gain

mor

e an

d m

ore

impo

rtan

ce

wor

ldw

ide.

B

y on

line

mon

itorin

g of

th

e ke

y fa

ult

gase

s an

add

ition

al p

oten

tial

of c

ost

redu

ctio

ns a

nd

safe

ty im

prov

emen

ts c

an b

e ac

hiev

ed.

The

HY

DR

OC

AL

1002

is

a pr

even

tive

mai

nten

ance

de

vice

tha

t is

per

man

ently

mou

nted

on

the

tran

s-fo

rmer

. It

mea

sure

s co

ntin

uous

ly t

he m

ost

impo

rtan

tfa

ult

gase

s in

a p

ower

tra

nsfo

rmer

, hy

drog

en (

H2)

an

d ca

rbon

mon

oxid

e (C

O).

Add

ition

ally

it s

erve

s fo

r re

cord

ing

the

faul

t ga

s co

nten

ts,

allo

ws

alar

m le

vels

to

be

set

for

each

fau

lt ga

s an

d of

fers

out

put

inte

r-fa

ces

(4-2

0mA

) in

divi

dual

ly fo

r H

2 an

d C

O c

onte

nt.

Key

Ad

van

tag

es

Ind

ivid

ual

an

alys

is

of t

he d

isso

lved

ga

s co

n-te

nts

hyd

roge

n (H

2) a

nd c

arbo

n m

onox

ide

(CO

)

Sim

ple,

lig

htw

eigh

t an

d ea

sy-t

o-m

ount

so

lutio

n w

ith

ou

t an

y o

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om th

e tr

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n th

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l tr

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er w

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sup

ply

inte

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on

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s co

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ts

as a

bar

gra

ph,

tren

d an

alys

is,

alar

m s

ettin

g di

-re

ctly

on

the

tran

sfor

mer

and

via

rem

ote

com

mu-

nica

tion

on a

cen

tral

PC

sys

tem

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y in

stal

lati

on

on

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tran

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tan

k or

an

y va

lve

on t

he t

rans

form

er (

conn

ectio

n to

DIN

IS

O 2

28: G

1½

)

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nten

ance

-fre

e sy

stem

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iou

s co

mm

un

icat

ion

in

terf

aces

(R

S

232,

R

S 4

85,

MO

DB

US

, in

tegr

ated

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rans

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/ tr

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sens

ors)

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hu

mid

ity

(via

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ity s

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e co

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alcu

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ap C

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- or

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•

Com

mun

icat

ion

with

up

to 3

1 un

its H

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CA

L 10

02

• C

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urat

ion

via

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mo

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co

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un

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• In

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• M

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pla

ce o

n T

op o

f HY

DR

OC

AL

1002

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alo

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e m

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nic

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n

• In

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com

mu

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n

• V

ia

inte

grat

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23

2 in

terf

ace

(acc

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ble

with

out

open

ing

of H

YD

RO

CA

L 10

02 c

over

) •

On-

site

, e.g

. by

note

book

Sen

sor

mo

un

tin

g

Tra

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ith

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t co

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g s

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m

Mou

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g of

the

HY

DR

OC

AL

1002

sen

sor

on a

val

ve

on th

e tr

ansf

orm

er ta

nk.

Intr

insi

c oi

l circ

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ion

is a

ssur

ing

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mpl

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ent o

f th

e oi

l in

the

sens

or c

ell

Tra

nsf

orm

er w

ith

co

olin

g s

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m a

nd

fo

rced

oil

flo

w

The

HY

DR

OC

AL

1002

sen

sor

is m

ount

ed o

n a

T-t

ube

valv

e on

the

retu

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ow fr

om th

e co

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sor

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war

e m

ain

men

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Use

r m

enu

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form

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ata

• C

usto

mer

/ S

ite a

d-m

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trat

or d

ata

Ext

ern

al m

enu

• V

olta

ge a

nd c

urre

nt

mea

sure

men

t •

Bot

tom

and

top

oil

mea

sure

men

t •

Oil

hum

idity

mea

s-ur

emen

t G

as-i

n-O

il m

enu

• C

hart

dia

gram

H2

and

CO

•

Res

ult t

able

H2

and

CO

Ala

rm m

enu

• R

epor

t tab

le

• A

larm

ack

now

l-ed

gem

ent

Tra

nsf

orm

er m

enu

• A

ging

rat

e •

Hot

pot

tem

pera

ture

•

Loss

-of-

life

Co

nfi

gu

rati

on

men

u

• A

larm

leve

l set

ting

• C

omm

unic

atio

n se

t-tin

g •

Tra

nsfo

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set

tings

/ c

onfig

aura

tion

Gas

-in

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men

u

Ala

rm m

enu

C

om

mu

nic

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n m

enu

Indi

vidu

al c

hart

dia

gram

for

bot

h hy

drog

en H

2 an

d ca

rbon

mon

ox-

ide

CO

Dis

play

of

al

arm

lis

t. D

etai

ls

of

each

ala

rm a

nd in

divi

dual

set

tings

T

rans

mis

sion

sp

eed

adju

stm

ent

for

the

RS

232

/ R

S 4

85 c

onne

c-tio

n

Diff

eren

t ad

just

men

ts /

set

tings

for

th

e m

odem

com

mun

icat

ion

PC

-So

ftw

are

Tra

nsf

orm

er a

dm

inis

trat

ion

d

ata

• A

ll ad

min

istr

atio

n da

ta o

f a

tran

sfor

mer

can

be

en-

tere

d •

Net

wor

k of

diff

eren

t pow

er

plan

ts a

nd tr

ansf

orm

er

bank

s ca

n be

con

figur

ed

• S

elec

tive

cont

act t

o ea

ch

tran

sfor

mer

in th

e ne

twor

k •

Obt

aini

ng in

form

atio

n of

to

tal t

rans

form

er s

ituat

ion

Tec

hn

ical

dat

a H

YD

RO

CA

L 1

002

Mea

surin

g Q

uant

ities

M

easu

ring

rang

e M

easu

ring

accu

racy

H

Hyd

roge

n H

2:

0 pp

m ..

. 2.0

00 p

pm

± 15

% o

f the

mea

surin

g va

lue

± 25

ppm

Car

bon

Mon

oxid

e C

O:

0 pp

m ..

. 2.0

00 p

pm

± 20

% o

f the

mea

surin

g va

lue

± 25

ppm

(r

elat

ed to

oil

tem

pera

ture

of +

55°C

)

Mea

sure

men

t int

erva

l: 20

min

.

Ope

ratio

n T

empe

ratu

re:

Oil

Tem

pera

ture

: -2

0°C

... +

90°C

Am

bien

t tem

pera

ture

: -5

0°C

... +

55°C

(bel

ow -

10°C

dis

play

func

tion

lock

ed)

Tem

pera

ture

Coe

ffic

ient

: 1

% /

K

Oil

Pre

ssur

e:

0 -

800

kpa,

no

vacu

um a

llow

ed

Fun

ctio

ns:

Indi

vidu

al g

as le

vel m

easu

rem

ent H

2 an

d C

O

G

as tr

end

anal

ysis

(ch

art /

bar

dia

gram

)

Diff

eren

t ala

rm le

vel c

onfig

urat

ion

R

S 2

32/R

S 4

85 c

omm

unic

atio

n an

d m

odem

com

mun

icat

ion

(GS

M, M

odem

) to

cent

ral P

C W

indo

ws©

sof

twar

e

Out

puts

: 2

x an

alog

ue o

utpu

ts:

0/4

... 2

0 m

A (

H2

conc

entr

atio

n)

0/4

... 2

0 m

A (

CO

con

cent

ratio

n)

2

x an

alog

ue o

utpu

ts:

0/4

... 2

0 m

A (

free

con

figur

able

)

12

x d

igita

l out

puts

: 4

x 12

V r

ela

y ou

tput

s

Max

imum

sw

itchi

ng v

alue

s:

220

V D

C, 2

20 V

AC

, 2 A

, 60

W

8 x

opto

-cou

pler

out

puts

H2

alar

m (

H)

(1st le

vel a

larm

) H

2 al

arm

(H

H)

(2

nd le

vel a

larm

) C

O a

larm

(H

) C

O a

larm

(H

H)

Inpu

ts:

4 x

anal

ogue

inpu

ts:

0/4

... 2

0 m

A

4

x an

alog

ue in

puts

: 0/

4 ...

20

mA

/ 0

... 1

0 V

(co

nfig

urab

le b

y ju

mpe

rs)

Gas

in o

il 4

x in

tern

al g

as s

enso

rs (

redu

ndan

t sys

tem

) 2

x H

2, 2

x C

O

conc

entr

atio

n M

onito

r:

2 x

inte

rnal

tem

pera

ture

sen

sors

(oi

l tem

pera

ture

, gas

tem

pera

ture

)

Com

mun

icat

ion:

R

S 2

32 (

exte

rnal

con

nect

ion,

no

unm

ount

ing

of p

rote

ctiv

e co

ver

requ

ired)

R

S 4

85 (

bus-

oper

atio

n or

poi

nt-t

o-po

int o

pera

tion,

MO

DB

US

or

prop

rieta

ry p

ro-

toco

l)

Inte

rnal

on-

boar

d m

odem

(G

SM

14.

4 kB

it / a

nalo

g 56

kB

it)

Pro

tect

ion

clas

s:

IP 5

5

Pow

er s

uppl

y:

110

V /

230

V ±

20

%, m

ax. 3

50 V

A, 5

0/60

Hz

Dim

ensi

ons:

ap

prox

. W 2

15 x

H 2

15 x

D 2

15 m

m

Wei

ght:

appr

ox. 8

kg

Co

nn

ecti

on

s

Item 13B

HY

DR

OC

AL

10

03

T

ran

sfo

rmer

On

line

Mo

nit

ori

ng

Sys

tem

wit

h G

as-i

n-O

il an

d M

ois

-tu

re-i

n-O

il M

easu

rem

ent

Ana

lysi

s of

the

gas

es d

isso

lved

in p

ower

tra

nsfo

rmer

oil

is

reco

gniz

ed a

s th

e m

ost

usef

ul t

ool f

or e

arly

det

ectio

n an

d di

agno

sis

of in

cipi

ent f

aults

in tr

ansf

orm

ers.

In a

dditi

on w

ater

con

tam

inat

ion

dete

riora

tes

the

perf

orm

-an

ce o

f th

e oi

l as

a h

igh

moi

stur

e co

nten

t in

crea

ses

the

risk

of

corr

osio

n an

d ov

erhe

atin

g.

Thi

s is

in

pa

rtic

ular

w

hen

the

wat

er c

onte

nt r

each

es t

he s

atur

atio

n po

int

of t

he

oil a

nd fr

ee w

ater

is fo

rmed

.

Bes

ides

reg

ular

gas

chr

omat

ogra

phic

ana

lysi

s an

d of

f-lin

e m

oist

ure

anal

ysis

of

the

isol

atio

n oi

l of

pow

er t

rans

form

ers

onlin

e m

onito

ring

syst

ems

gain

mor

e an

d m

ore

impo

r-ta

nce

wor

ldw

ide.

By

onlin

e m

onito

ring

of t

he k

ey f

ault

gase

s hy

drog

en (

H2)

an

d ca

rbon

mon

oxid

e (C

O)

and

moi

stur

e an

add

ition

alpo

tent

ial

of c

ost

redu

ctio

ns a

nd s

afet

y im

prov

emen

ts c

an

be a

chie

ved.

Key

Ad

van

tag

es

Ind

ivid

ual

an

alys

is o

f th

e di

ssol

ved

gas

cont

ents

hy-

drog

en (

H2)

and

car

bon

mon

oxid

e (C

O)

Ana

lysi

s of

moi

stur

e (H

2O)

diss

olve

d in

tra

nsfo

rmer

oil

(bo

th r

elat

ive

hum

idity

in

% a

nd a

bsol

ute

hum

idity

in

p

pm

)

Sim

ple,

lig

htw

eigh

t an

d ea

sy-t

o-m

ou

nt

solu

tio

n o

n an

y va

lve

on t

he t

rans

form

er (

conn

ectio

n to

DIN

or

NP

T v

alve

s as

wel

l as

via

flang

e co

nnec

tion)

Inst

alla

tio

n

on

the

oper

atio

nal

tran

sfor

mer

w

ith

ou

tan

y su

pp

ly in

terr

up

tio

n

So

ph

isti

cate

d g

rap

hic

al-o

rien

ted

so

ftw

are

(on

the

devi

ce a

nd v

ia P

C)

Var

iou

s co

mm

un

icat

ion

in

terf

aces

(R

S

232,

R

S

485,

MO

DB

US

, int

egra

ted

GS

M-

and

anal

og m

odem

)

Mai

nte

nan

ce-f

ree

syst

em

Tra

nsf

orm

er m

on

ito

rin

g f

un

ctio

ns

Vo

ltag

es a

nd

Cu

rren

ts(v

ia

volta

ge

and

curr

ent

tran

sfor

mer

s /

tran

sduc

er)

Tem

per

atu

re M

on

ito

rin

gB

otto

m a

nd o

il te

mpe

ratu

re

(via

add

ition

al te

mpe

ratu

res

sens

ors)

Oil

hu

mid

ity

(via

add

ition

al h

umid

ity s

enso

r)

Fre

e co

nfi

gu

rati

on

Ana

logu

e in

puts

can

be

free

allo

cate

d to

an

y ad

ditio

nal s

enso

r

Fu

rth

er C

alcu

lati

on

s:

Ho

t-S

po

t jo

int d

evel

opm

ent

Lo

ss-o

f-L

ife

with

PA

UW

ELS

A

gei

ng

Rat

e B

elgi

umC

oo

ling

Sta

ge

/ Tap

Ch

ang

er P

osi

tio

n

(e.g

. via

cur

rent

tran

sduc

er)

Rem

ote

Co

mm

un

icat

ion

RS

485

•

Bus

-Ope

ratio

n or

poi

nt-t

o-po

int o

pera

tion

• M

OD

BU

S-

or p

ropr

ieta

ry p

roto

col

• B

us le

ngth

up

to 1

000

m

• C

omm

unic

atio

n w

ith u

p to

255

uni

ts H

YD

RO

CA

L 10

03

• C

onfig

urat

ion

via

inte

rnal

sof

twar

e or

PC

sof

twar

e H

YD

RO

SO

FT

GP

S/G

PR

S m

od

em c

om

mu

nic

atio

n

• In

tegr

ated

on-

boar

d m

odem

•

Mag

netic

ant

enna

to p

lace

on

top

of H

YD

RO

CA

L 10

03

An

alo

gu

e m

od

em c

om

mu

nic

atio

n

• In

tegr

ated

on-

boar

d m

odem

Dir

ect

com

mu

nic

atio

n

• V

ia in

tegr

ated

RS

232

inte

rfac

e (a

cces

sibl

e w

ithou

t ope

ning

of H

YD

RO

CA

L 10

03 c

over

) •

On-

site

, e.g

. by

note

book

Sen

sor

mo

un

tin

g

Tra

nsf

orm

er w

ith

ou

t co

olin

g s

yste

m

Mou

ntin

g of

the

HY

DR

OC

AL

1003

sen

sor

on a

val

ve o

n th

e tr

ansf

orm

er ta

nk.

Intr

insi

c oi

l circ

ulat

ion

is a

ssur

ing

acco

mpl

ishm

ent o

f the

oil

in th

e se

nsor

cel

l

Tra

nsf

orm

er w

ith

co

olin

g s

yste

m a

nd

fo

rced

oil

flo

w

The

HY

DR

OC

AL

1003

sen

sor

is m

ount

ed o

n a

T-t

ube

valv

e on

the

retu

rn fl

ow fr

om th

e co

olin

g sy

stem

Sen

sor

firm

war

e m

ain

men

u

Use

r m

enu

•

Tra

nsfo

rmer

adm

inis

-tr

ator

dat

a •

Cus

tom

er /

Site

adm

in-

istr

ator

dat

a

Ext

ern

al m

enu

•

Vol

tage

and

cur

rent

m

easu

rem

ent

• B

otto

m a

nd to

p oi

l m

easu

rem

ent

• O

il hu

mid

ity m

easu

re-

men

t

Gas

-in

-Oil

men

u

• C

hart

dia

gram

H2

and

CO

•

Res

ult t

able

H2

and

CO

Ala

rm m

enu

•

Rep

ort t

able

•

Ala

rm a

ckno

wle

dge-

men

t

Tra

nsf

orm

er m

enu

•

Agi

ng r

ate

• H

ot s

pot t

empe

ratu

re

• Lo

ss-o

f-Li

ve

Co

nfi

gu

rati

on

men

u

• A

larm

leve

l set

ting

• C

omm

unic

atio

n se

tting

•

Tra

nsfo

rmer

set

ting

Inst

alla

tion

Gas

-in

-Oil

men

u

Ala

rm m

enu

C

om

mu

nic

atio

n m

enu

Indi

vidu

al c

hart

dia

gram

for

hyd

roge

n H

2, c

arbo

n m

onox

ide

CO

and

moi

s-tu

re-in

-oil

(H2O

in p

pm a

nd %

)

Dis

play

of

alar

m l

ist.

Det

ails

of

each

al

arm

and

indi

vidu

al s

ettin

gs

Tra

nsm

issi

on

spee

d ad

just

men

t fo

r th

e R

S 2

32 c

onne

ctio

n

Diff

eren

t ad

just

men

ts /

set

tings

for

the

m

odem

com

mun

icat

ion

PC

-So

ftw

are

Tra

nsf

orm

er a

dm

inis

trat

ion

d

ata

• A

ll ad

min

istr

atio

n da

ta o

f a

tran

sfor

mer

can

be

ente

red

• N

etw

ork

of d

iffer

ent p

ower

pl

ants

and

tran

sfor

mer

ban

ks

can

be c

onfig

ured

•

Sel

ectiv

e co

ntac

t to

each

tr

ansf

orm

er in

the

netw

ork

• O

btai

ning

info

rmat

ion

of to

tal

tran

sfor

mer

situ

atio

n

Edi

tion

01.2

008

Tec

hn

ical

dat

a H

YD

RO

CA

L 1

003

Mea

surin

g Q

uant

ities

M

easu

ring

rang

e M

easu

ring

accu

racy

(r

elat

ed to

am

bien

t tem

pera

ture

+20

°C a

nd o

il te

mpe

ratu

re +

55°C

)

Hyd

roge

n H

2:

0 pp

m ..

. 2.0

00 p

pm

± 15

% o

f the

mea

surin

g va

lue

± 25

ppm

Car

bon

Mon

oxid

e C

O:

0 pp

m ..

. 2.0

00 p

pm

± 20

% o

f the

mea

surin

g va

lue

± 25

ppm

Moi

stur

e-in

-Oil

H2O

: re

lativ

e

0 %

…

100

%

± 3

% o

f the

mea

surin

g va

lue

± 3

ppm

ab

solu

te 0

ppm

… 1

00pp

m

Mea

sure

men

t int

erva

l: 20

min

.

Ope

ratio

n T

empe

ratu

re:

Oil

Tem

pera

ture

: -2

0°C

... +

90°C

Am

bien

t tem

pera

ture

: -5

0°C

... +

55°C

(be

low

-10

°C d

ispl

ay fu

nctio

n lo

cked

)

Tem

pera

ture

Coe

ffici

ent:

1 %

/ K

Oil

Pre

ssur

e:

0 -

800

kpa,

no

vacu

um a

llow

ed

Fun

ctio

ns:

Indi

vidu

al g

as le

vel m

easu

rem

ent H

2 an

d C

O

M

oist

ure-

in-o

il m

easu

rem

ent H

2O in

bot

h %

and

ppm

Gas

/Moi

stur

e tr

end

anal

ysis

(ch

art /

bar

dia

gram

)

Diff

eren

t ala

rm le

vel c

onfig

urat

ion

R

S 2

32/R

S 4

85 c

omm

unic

atio

n an

d m

odem

com

mun

icat

ion

(GS

M, a

nalo

g)

to

cen

tral

PC

Win

dow

s© s

oftw

are

HY

DR

OS

OF

T

Out

puts

: 3

x an

alog

out

puts

: 4

... 2

0 m

A (

H2

conc

entr

atio

n)

4 ...

20

mA

(C

O c

once

ntra

tion)

4

… 2

0 m

A (

H2O

con

cent

ratio

n)

1

x an

alog

e ou

tput

s:

4 ...

20

mA

(fr

ee c

onfig

urab

le)

12

x d

igita

l out

puts

: 4

x 12

V r

elay

out

puts

(22

0VD

C/V

AC

, 2A

, 60W

)

8 x

opto

-cou

pler

out

puts

H

2/C

O/H

2O a

larm

(H

) (1

st le

vel a

larm

)

H2/

CO

/H2O

ala

rm (

HH

) (2

nd le

vel a

larm

)

Inpu

ts:

4 x

anal

ogue

inpu

ts:

0/4

... 2

0 m

A

4

x an

alog

ue in

puts

: 0/

4 ...

20

mA

/ 0

... 1

0 V

(co

nfig

urab

le b

y ju

mpe

rs)

Ga

s-in

-oil

Mo

nit

or/

3

x in

tern

al g

as s

enso

rs (

redu

ndan

t sys

tem

) 2

x H

2, 1

x C

O

Moi

stur

e-in

-oil

Mon

itor:

1 x

inte

rnal

moi

stur

e se

nsor

2 x

inte

rnal

tem

pera

ture

sen

sors

(oi

l tem

pera

ture

, gas

tem

pera

ture

)

Com

mun

icat

ion:

R

S 2

32 (

exte

rnal

con

nect

ion,

no

unm

ount

ing

of p

rote

ctiv

e co

ver

requ

ired)

RS

485

(bu

s-op

erat

ion

or p

oint

-to-

poin

t ope

ratio

n, M

OD

BU

S o

r pr

oprie

tary

pro

toco

l)

Inte

rnal

on-

boar

d m

odem

(G

SM

14.

4 kB

it / a

nalo

g 56

kB

it)

Pro

tect

ion

clas

s:

IP 5

5

Pow

er s

uppl

y:

110

V /

230

V ±

20

%, m

ax. 3

50 V

A, 5

0/60

Hz

Dim

ensi

ons:

ap

prox

. W 2

15 x

H 2

15 x

D 2

15 m

m

Wei

ght:

appr

ox. 8

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transformer a to z testing-ready catalogue

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