7. technical data

7/28/2019 7. Technical Data

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Technical Data P44x/EN TD/E33

MiCOM P441/P442 & P444

TECHNICAL DATA


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MiCOM P441/P442 & P444 Page 1/30

CONTENT

1. RATINGS 5

1.1 Currents 5

1.2 Voltages 5

1.3 Auxiliary Voltage 6

1.4 Frequency 6

1.5 Logic inputs 6

1.6 Output Relay Contacts 7

1.7 Field Voltage 7

1.8 Loop through connections 7

1.9 Wiring requirements 7

2. BURDENS 8

2.1 Current Circuit 8

2.2 Voltage Circuit 8

2.3 Auxiliary Supply 8

2.4 Optically-Isolated Inputs 8

3. ACCURACY 9

3.1 Reference Conditions 9

3.2 Measurement Accuracy 9

3.3 Protection accuracy 10

3.4 Influencing Quantities 12

3.5 High Voltage Withstand IEC60255-5:1977 12

3.5.1 Dielectric Withstand 12

3.5.2 Impulse 12

3.5.3 Insulation Resistance 12

4. ENVIRONMENTAL COMPLIANCE 13

4.1 Electrical Environment 13

4.1.1 DC Supply Interruptions IEC60255-11:1979 13

4.1.2 AC Ripple on DC Supply IEC60255-11:1979 13

4.1.3 Disturbances on AC Supply - EN61000-4-11:1994 13

4.1.4 High Frequency Disturbance IEC60255-22-1:1988 13

4.1.5 Fast Transient IEC60255-22-4:1992 13

4.1.6 Electrostatic Discharge IEC60255-22-2:1996 13

4.1.7 Conducted Emissions EN 55011:1991 134.1.8 Radiated Emissions EN 55011:1991 13

4.1.9 Radiated Immunity IEC60255-22-3:1989 14


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P44x/EN TD/E33 Technical Data

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4.1.10 Conducted Immunity IEC61000-4-6:1996 14

4.1.11 Surge Immunity IEC61000-4-5:1995 14

4.1.12 EMC Compliance 14

4.1.13 Power Frequency Interference - Electricity Association (UK) 14

4.2 Atmospheric Environment 14

4.2.1 Temperature IEC60255-6:1988 14

4.2.2 Humidity IEC60068-2-3:1969 14

4.2.3 Enclosure Protection IEC60529:1989 14

4.2.4 Pollution degree IEC61010-1:1990/A2:1995 14

4.3 Mechanical Environment 15

4.3.1 Vibration IEC60255-21-1:1988 15

4.3.2 Shock and Bump IEC60255-21-2:1988 15

4.3.3 Seismic IEC60255-21-3:1993 15

5. ANSI TEST REQUIREMENTS 16

5.1 ANSI / IEEE C37.90.1989 16

5.2 ANSI / IEEE C37.90.1: 1989 16

5.3 ANSI / IEEE C37.90.2: 1995 16

6. PROTECTION SETTING RANGES 17

6.1 Distance Protection 17

6.1.1 Line Settings 17

6.1.2 Zones settings 17

6.1.3 Power-swing settings 18

6.2 Distance protection schemes 18

6.2.1 Programmable distance schemes 19

6.2.2 Distance schemes settings 19

6.2.3 Weak infeed settings 19

6.2.4 Loss of load settings 19

6.3 Back-up Overcurrent Protection 20

6.3.1 Threshold Settings 20

6.3.2 Time Delay Settings 20

6.3.3 Inverse Time (IDMT) Characteristic 20

6.4 Negative sequence overcurrent protection 22

6.5 Broken Conductor Protection 22

6.6 Earth Fault Overcurrent Protection 22


6.6.2 Polarising Quantities For Earth Fault Measuring Elements 22

6.6.3

Time Delay Characteristics 22

6.7 Zero sequence Power Protection (since B1.0) 23


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6.8 Channel Aided Directional Earth Fault Protection 23


6.9 Under Voltage Protection 23


6.9.2 Under Voltage Protection Time Delay Characteristics 23

6.10 Over Voltage Protection 24


6.10.2 Time Delay Characteristics 24

6.11 Voltage Transformer Supervision 24

6.12 Capacitive Voltage Transformer Supervision (since B1.0) 24

6.13 Current Transformer Supervision 25

6.14 Undercurrent Element 25

6.15

Breaker Fail Timers (TBF1 and TBF2) 25

7. MEASUREMENT SETTINGS 26

7.1 Disturbance Recorder Settings 26

7.2 Fault Locator Settings 26

8. CONTROL FUNCTION SETTINGS 27

8.1 Communications Settings 27

8.2 Auto-Reclose 27

8.2.1

Options 27

8.2.2 Auto-recloser settings 27

8.3 Circuit Breaker State Monitoring 28

8.4 Circuit Breaker Control 29

8.5 Circuit Breaker Condition Monitoring 29

8.5.1 Maintenance alarm settings 29

8.5.2 Lockout Alarm Settings 29

8.6 Programmable Logic 30

8.7 CT and VT Ratio Settings 30


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BLANK PAGE


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1. RATINGS

1.1 Currents

In = 1A or 5A ac rms (dual rated).

Separate terminals are provided for the 1A and 5A windings, with the neutral input of eachwinding sharing one terminal.

CT Type Operating range

Standard 0 to 64In

Sensitive 0 to 2In

All current inputs will withstand the following, with any current function setting:

Withstand Duration

4 n Continuous rating

4.5 n 10 minutes

5 n 5 minutes

6 n 3 minutes

7 n 2 minutes

30 n 10 seconds

50 n 3 seconds

100 n 1 second

Pass Criteria Winding temperatures


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1.3 Auxiliary Voltage

The relay is available in three auxiliary voltage versions, these are specified in the tablebelow:

Nominal Ranges Operative dc range Operative ac range

24-48V dc 19 - 65 V Not available

48-110 V dc (30 / 100 V ac rms) ** 37 - 150 V 24 - 110 V

110-250 V dc (100 / 240 V ac rms) ** 87 - 300 V 80 - 265 V

** rated for AC or DC operation.

Pass Criteria All functions operate as specifiedwithin the operative ranges

All power supplies operatecontinuously over their operativeranges, and environmental

conditions

1.4 Frequency

The nominal frequency (Fn) is dual rated at 50/60Hz, the operate range is 45Hz to 65Hz.

1.5 Logic inputs

All the logic inputs are independent and isolated, relay types P441 provide 8 inputs, 16inputs are provided by the P442.

Rating Range

Logical off 0Vdc 0 - 12Vdc

Logical on 50Vdc 30 - 60Vdc

Higher voltages can be used in conjunction with an external resistor, value of the resistor isdetermined by the following equation:

Resistor = (Required Input Level - 50) x 200.

Hardware ref P441/442B or C or P444A or C (Universal Opto) :

All the logic inputs are independent and isolated, relay types P441 provide 8 inputs, 16inputs are provided by the P442 and 24 inputs for P444.

Battery Voltage (V dc) Logical off (V dc) Logical on (V dc)

24/27 19.2

30/34 24

48/54 38.4

110/125 88

220/250 176

REMARK: Control the version compatibility in P44x/EN VC chapter


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1.6 Output Relay Contacts

Make & Carry 30A for 3s

Carry 250A for 30ms10A continuous

Break DC: 50W resistiveDC: 37.5W inductive (L/R = 40ms)AC: 1250VAAC: 1250VA inductive (P.F. = 0.7)

Maxima: 10A and 300V

Loaded contact: 10,000 operations minimum

Unloaded contact: 100,000 operations minimum

Watchdog Contact

Break DC: 30W resistiveDC: 15W inductive (L/R = 40ms)AC: 275W inductive (P.F. = 0.7)

The maximum number of output relays that should be configured to be permanentlyenergized is 50% of those available (minimum 4).

1.7 Field Voltage

The field voltage provided by the relay is nominally 48V dc with a current limit of 112mA. Theoperating range shall be 40V to 60V with an alarm raised at


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2. BURDENS

2.1 Current Circuit

CT burden (at nominal current)

1A


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3. ACCURACY

For all accuracies specified, the repeatability is 2.5% unless otherwise specified.

If no range is specified for the validity of the accuracy, then the specified accuracy shall bevalid over the full setting range.

3.1 Reference Conditions

Quantity Reference conditions Test tolerance

General

Ambient temperature 20 C 2C

Atmospheric pressure 86kPa to 106kPa -

Relative humidity 45 to 75 % -

Input energising quantity

Current In 5%

Voltage Vn 5%

Frequency 50 or 60Hz 0.5%

Auxiliary supply DC 48V or 110VAC 63.5V or 110V

5%

3.2 Measurement Accuracy

Quantity Range Accuracy

Current 0.1 to 64In 10mA or 1%

Voltage 1.0 Vn 1%

Frequency 45 - 65Hz 0.025Hz

Phase 0 - 360 2


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3.3 Protection accuracy

Element Range Trigger Res

Distance elements: Zone 1

ResistanceImpedance 0 to 400/In0.001/In to 500/In

Accuracy: 5%

Distance elements: Other zonesResistanceImpedance

0 to 400/In0.001/In to 500/In

Accuracy: 10%

Phase Overcurrent elements (I>1, I>2, I>3, I>4) 2 to 20 Is [1] DT: Is5%IDMT: 1.05Is5%

0.95

0.95

Relay characteristic angle -95 to +95 Accuracy: 2 1

Earth fault measuring elements (IN>1,I

N>2, I

N>) 2 to 20 Is [2] DT: Is5%

IDMT: 1.05Is5%0.95

Zero sequence voltage polarisation (Vop>)

Vn = 100/120 V 0.5 - 25VAccuracy:

10% at RCA 90 -

Negative sequence Polarisation: Voltage threshold (V2p>)

Vn = 100/120 V 0.5 - 25VAccuracy:

5% -

Negative sequence Polarisation: Current threshold (I2p>) 0.08 - 1.0In Accuracy:

5%0.95

Negative Sequence Overcurrent (I2>) 2 to 20 Is [1] Is5% 0.95

Under Current element (I>)Vn = 100/120 V 60 - 185V

DT: Vs5%IDMT: 1.05Vs5% 0.95

Directional Operating Boundary 0 - 360 Accuracy:2

-


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Technical Data

MiCOM P441/P442 & P444

Element Range Trigger Res

Broken conductor protectionI

I

2

1

0.2 to 1.0

I

I

2

1

5% 0.95

Transient Overreach 2 to 20 Is


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3.4 Influencing Quantities

No additional errors will be incurred for any of the following influencing quantities:

Quantity Operative range (typical only)

Environmental

Temperature -25C to +55C

Mechanical (Vibration, Shock, Bump,Seismic)

According toIEC 60255-21-1:1988IEC 60255-21-2:1988IEC 60255-21-3:1995

Quantity Operative range

Electrical

Frequency 45 Hz to 65 HzHarmonics (single) 5% over the range 2nd to 17th

Auxiliary voltage range 0.8 LV to 1.2 HV (dc)0.8 LV to 1.1 HV (ac)

Aux. supply ripple 12% Vn with a frequency of 2.fn

Point on wave of fault waveform 0 - 360

DC offset of fault waveform No offset to fully offset

Phase angle -90 to + 90

Magnetising inrush No operation with OC elements set to 35% of

peak anticipated inrush level.

3.5 High Voltage Withstand IEC60255-5:1977

3.5.1 Dielectric Withstand

2.0kVrms for one minute between all terminals and case earth.

2.0kVrms for one minute between all terminals of each independent circuit grouped togetherand all other terminals. This includes the output contacts and loop through connectionsD17/D18 and E17/E18.

1.5kVrms for one minute across dedicated normally open contacts of output relays.

1.0kVrms for 1 minute across normally open contacts of changeover pairs and watchdogoutputs.

3.5.2 Impulse

The product will withstand without damage impulses of 5kV peak, 1.2/50s, 0.5J across:

Each independent circuit and the case with the terminals of each independent circuitconnected together.

Independent circuits with the terminals of each independent circuit connected together.

Terminals of the same circuit except normally open metallic contacts.

3.5.3 Insulation Resistance

The insulation resistance is greater than 100 M at 500Vdc.


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4. ENVIRONMENTAL COMPLIANCE

The product complies with the following specifications :

4.1 Electrical Environment

4.1.1 DC Supply Interruptions IEC60255-11:1979

The product will withstand a 20ms interruption in the auxiliary voltage in its quiescentcondition.

4.1.2 AC Ripple on DC Supply IEC60255-11:1979

The product will operate with 12% AC ripple on the DC auxiliary supply without anyadditional measurement errors.

4.1.3 Disturbances on AC Supply - EN61000-4-11:1994

The products satisfies the requirements of EN61000-4-11 for voltage dips and shortinterruptions.

4.1.4 High Frequency Disturbance IEC60255-22-1:1988

The product complies with Class III 2.5kV common mode and 1kV differential mode for 2

seconds at 1MHz with 200 source impedance, without any mal-operations or additionalmeasurement errors.

4.1.5 Fast Transient IEC60255-22-4:1992

The product complies with all classes up to and including class IV/4kV without any mal-operations or additional measurement errors.

Fast transient disturbances on power supply(common mode only)

4kV, 5ns rise time, 50ns decay time, 5kHzrepetition time, 15ms burst, repeated every

300ms for 1min in each polarity, with a 50source impedance.

Fast transient disturbances on I/O signal,data and control lines (common mode only)

4kV, 5ns rise time, 50ns decay time, 5kHzrepetition time, 15ms burst, repeated every

300ms for 1min in each polarity, with a 50source impedance.

4.1.6 Electrostatic Discharge IEC60255-22-2:1996

The product will withstand application of all discharge levels up to the following without mal-operation:

Class IV 15kV discharge in air to the user interface, display and exposed metal work.

Class III 8kV discharge in air to all communication ports, 6kV point contact discharge to anypart of the front of the product.

4.1.7 Conducted Emissions EN 55011:1991

Group 1 Class A limits.

0.15 - 0.5MHz, 79dBV (quasi peak) 66dBV (average).

0.5 - 30MHz, 73dBV (quasi peak) 60dBV (average).

4.1.8 Radiated Emissions EN 55011:1991

Group 1 Class A limits.

30 - 230MHz, 40dBV/m at 10m measurement distance.

230 - 1000MHz, 47dBV/m at 10m measurement distance.


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4.1.9 Radiated Immunity IEC60255-22-3:1989

Class/Level III/3 - 10V/m at 1kHz 80% am., 20MHz to 1GHz.

4.1.10 Conducted Immunity IEC61000-4-6:1996

Level 3 - 10Vrms at 1kHz 80% am.- 0.15 to 80MHz.

4.1.11 Surge Immunity IEC61000-4-5:1995

Level 4 - 4kV peak, 1.2/50s between all groups and case earth

2kV peak, 1.2/50s between terminals of each group.

4.1.12 EMC Compliance

Compliance to the European Community Directive 89/336/EEC on EMC is claimed via theTechnical Construction File route.

Generic Standards EN 50081-2 :1994 and EN 50082-2 :1995 are used to establishconformity.

4.1.13 Power Frequency Interference - Electricity Association (UK)

EA PAP Document, Environmental Test Requirements for Protection Relays and SystemsIssue I, Draft 4.2.1 1995.

Class Length of commscircuit

UnbalancedComms V rms

Balanced Comms(Unbalance 1%)Vrms

Balanced Comms(Unbalance 0.1%)Vrms

1 1 to 10 metres 0.5 0.005 0.0005

2 10 to 100 metres 5 0.05 0.005

3 100 to 1000 metres 50 0.5 0.05

4 1000 to 10,000m or > 500 5 0.5

4.2 Atmospheric Environment

4.2.1 Temperature IEC60255-6:1988

Storage and transit 25C to +70C.

Operating 25C to +55C.

IEC60068-2-1:1990 Cold

IEC60068-2-2:1974 Dry heat

4.2.2 Humidity IEC60068-2-3:1969

56 days at 93% relative humidity and 40C.

4.2.3 Enclosure Protection IEC60529:1989

IP52 - Protected against dust and dripping water at 15 to the vertical.

4.2.4 Pollution degree IEC61010-1:1990/A2:1995

Normally only non conductive pollution occurs. Occasionally a temporary conductivitycaused by condensation must be expected.


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4.3 Mechanical Environment

4.3.1 Vibration IEC60255-21-1:1988

Vibration Response Class 2 - 1g

Vibration Endurance Class 2 - 2g.

4.3.2 Shock and Bump IEC60255-21-2:1988

Shock response Class 2 - 10g

Shock withstand Class 1 - 15g

Bump Class 1 - 10g

4.3.3 Seismic IEC60255-21-3:1993

Class 2.


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5. ANSI TEST REQUIREMENTS

The products shall meet the ANSI / IEEE requirements as follows:-

5.1 ANSI / IEEE C37.90.1989

Standards for relays and relay systems associated with electric power apparatus.

5.2 ANSI / IEEE C37.90.1: 1989

Surge withstand capability (SWC) tests for protective relays and relay systems:-

Oscillatory test - 1MHz to 1.5MHz, 2.5kV to 3.0kV,

Fast transient test 4kV to 5kV

5.3 ANSI / IEEE C37.90.2: 1995

Standard for withstand capability of relay systems to radiated electromagnetic interferencefrom transceivers: 35V/m, 25 to 1000Mhz.


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6. PROTECTION SETTING RANGES

6.1 Distance Protection

6.1.1 Line Settings

Setting Range Step size

Length of line (Ln) 0.3 - 1000 km0.2 - 625 miles

0.010 km0.005 miles

Positive sequence angle (1) 90 - 90 0.1

In = 1 A In = 5 A

Setting Range Step size Range Step size

Positive sequence impedance

(Z1)

0.001 - 500 0.001 0.002 -

199,8

0.002

6.1.2 Zones settings

Setting In = 1 A In = 5 A

Range Step size Range Step size

Impedance reaches(Zone 1, Zone 2, Zone 3, Zone P,Zone 4)

0.001 - 500 0.001 0.0002 -100

0.0002

Resistive reaches for phase -earth faults

(Zone 1, Zone 2, Zones 3 & 4,Zone P)

0 - 400 0.01 0 - 80 0.002

Resistive reaches for phase -earth faults(Zone 1, Zone 2, Zones 3 & 4,Zone P)

0 - 400 0.01 0 - 80 0.002


Residual compensation angles(Zone 1, Zone 2, Zones 3 & 4,

Zone P)

180-180 0.1

Residual compensation factors(Zone 1, Zone 2, Zones 3 & 4,Zone P)

0 - 7 0.001

Timer for zone 1/1X 0 - 10s 0.002s

Timers for zone 2, Zone 3,Zone P, Zone 4

0 - 10s 0.01s


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6.1.3 Power-swing settings

In = 1 A In = 5 A

Setting Range Step size Range Step size

Powerswing detection boundaries:Delta RDelta X

0 - 400 0 - 400

0.01 0.01

0 - 80 0 - 80

0.002 0.002


Imax line In - 20 In 0.01 In

IN threshold 10 - 100 % Imax 1%Imax

I2 threshold 10 - 100 % Imax 1%Imax

Trip mode Single/Three pole -

Unblocking time delay 0 - 30s 0.1s

Power-swing detection boundary 0 - 25 0.01

Block zones Bit 0: Z1&Z1X-Block, Bit 1: Z2 blockBit 2: Z3 block, Bit 3: Zp block, Bit 4:Z4block

6.2 Distance protection schemes

Basic scheme functions: Instantaneous zone 1 tripping

Time delayed tripping for all zones

Directional earth fault protection

Zero sequence Power protection (since B1.0)

Switch on to fault logic

Trip on reclose logic

Loss of load logic

Conversion to three pole tripping

Channel-aided distance schemes: Permissive Overreach Protection withOverreaching Zone 1 (POP Z1)

Permissive Overreach Protection withOverreaching Zone 2 (POP Z2)

Permissive Underreach Protection, AcceleratingZone 2 (PUP Z2)

Permissive Underreach Protection Tripping viaForward Start (PUP Fwd)

Blocking Overreach Protection with OverreachingZone 1 (BOP Z1)

Blocking Overreach Protection with OverreachingZone 2 (BOP Z2)

Permissive Scheme Unblocking Logic

Permissive Overreach Schemes Weak Infeed

Features

Permissive Overreach Schemes Current ReversalGuard

Blocking Scheme Current Reversal Guard


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6.2.1 Programmable distance schemes

Setting Range

Signal Send Zone No Signal Send/Signal send on Z1/ Signal send on Z2/Signal send on Z4

Type of Scheme on signalReceive

None/None+Z1X/Aided scheme for Z1 faults/Aidedscheme for Z2 faults/ Aided scheme for forward faults/Blocking scheme for Z1 faults/ Blocking scheme for Z2faults

6.2.2 Distance schemes settings


Fault Type/Signal Send Zone Phase-to-Ground Fault Enabled/Phase-to-Phase Fault Enabled/BothEnabled

-

Trip mode for the distance

protection

Force 3 Pole Trip for all zones/1

Pole Trip for zone Z1/1 Pole trip forzones Z1 and Z2

-

Signal Receive Time-Delay forBlocking Schemes (Tp)

0 - 1s 0,002s

Time Delay for Reversal Guard 0 - 0,15s 0,002s

Unblocking Logic/Type of TACReceive

None (no control of SignalReceive)/Loss of carrier/Loss ofGuard (HF Presence)

-

SOTF Delay 10 3600 s 1.000 s

TOR-SOTF Mode TOR

Z1 enable/Z2 enable/Z3 enable/All zones enable/Distance scheme enable

SOTF

AllZones/Lev.Detect./Z1 enable/Z2enable/Z3 enable/Z1+Reven/Z2+Rev en/Dist Scheme/Disable

-

6.2.3 Weak infeed settings


WI :Mode Status Disabled/Echo/Trip&Echo -

WI : Single Pole Trip Disabled/Enabled -

WI : V< Thres. 10 - 70V 5V

WI : Trip Time Delay 0 - 1s 0,002s

6.2.4 Loss of load settings

Setting Range Step Size

Mode status Disabled or enabled

Chan. Fail Disabled or enabled

I< 0.05 x In - 1 x In 0.05 In

Window 0.01s - 0.1s 0.01s

NOTE: For detailed information on distance schemes, please refer to ChapterP44x/EN AP - Application notes.


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6.3 Back-up Overcurrent Protection

6.3.1 Threshold Settings

Setting Stage Range Step size

I>1 Current Set 1st Stage 0.08 - 4.0In 0.01In

I>2 Current Set 2nd Stage 0.08 - 4.0In 0.01In

I>3 Current Set TOR/SOTF protection 0.08 - 32In 0.01In

I>4 Current Set Stub bus protection 0.08 - 32In 0.01In

6.3.2 Time Delay Settings

Each overcurrent element has an independent time setting and each time delay can beblocked by an optically isolated input:

Element Time delay type

1st Stage Definite Time (DT) or IDMT(IEC/UK/IEEE/UScurves)

2nd Stage DT or IDMT

3rd Stage DT

4th Stage DT

6.3.3 Inverse Time (IDMT) Characteristic

IDMT characteristics are selectable from a choice of four IEC/UK and five IEEE/US curvesas shown in the table below.

The IEC/UK IDMT curves conform to the following formula:

t = TMS K

(I/Is)1

The IEEE/US IDMT curves conform to the following formula:

t=TD7

( )

+

L

1I/I

K

S

Where

t = operation time

K = constant

I = measured current

IS

= current threshold setting

= constant

L = ANSI/IEEE constant (zero for IEC/UK curves)

TMS = Time Multiplier Setting for IEC/UK curves

TD = Time Dial Setting for IEEE/US curves


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IDMT Curve description Standard K Constant Constant L Constant

Standard Inverse IEC 0.14 0.02

Very Inverse IEC 13.5 1

Extremely Inverse IEC 80 2

Long Time Inverse UK 120 1

Moderately Inverse IEEE 0.0515 0.02 0.114

Very Inverse IEEE 19.61 2 0.491

Extremely Inverse IEEE 28.2 2 0.1217

Inverse US-C08 5.95 2 0.18

Short Time Inverse US-C02 0.02394 0.02 0.01694

IDMT Characteristics

Name Range Step Size

TMS 0.025 to 1.2 0.025

Time Multiplier Settings for IEC/UK curves

Name Range Step Size

TD 0.5 to 15 0.1

Time Dial Settings for IEEE/US curves

6.3.3.1 Definite Time Characteristic

Element Range Step Size

All stages 0 to 100s 10ms

6.3.3.2 Reset Characteristics

Reset options for IDMT stages:

Curve type Reset time delay

IEC / UK curves DT only

All other IDMT or DT

The Inverse Reset characteristics are dependent upon the selected IEEE/US IDMT curve asshown in the table below. Thus if IDMT reset is selected the curve selection and Time Dialsetting will apply to both operate and reset.

All inverse reset curves conform to the following formula:

( )t

TD tr

I Iset

S

Re=

7 1

Where

tReset

= reset time

tr = constant

I = measured current

IS

= current threshold setting

= constant

TD = Time Dial Setting (Same setting as that employed by IDMT curve)


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IEEE/US IDMT Curve description Standard tr Constant Constant

Moderately Inverse IEEE 0.0515 0.02

Very Inverse IEEE 19.61 2

Extremely Inverse IEEE 28.2 2

Inverse US-C08 5.95 2

Short Time Inverse US-C02 0.02394 0.02

Inverse Reset Characteristics

6.4 Negative sequence overcurrent protection


I2> Current Set 0.08 - 4.0In 0.01In

I2> time Delay 0 - 100s 0.01s

Directional None/Fwd/Rev

I2> Char Angle 95 - +95 1

6.5 Broken Conductor Protection

Settings Range Step size

I2/I1 Setting 0.2 - 1.0 0.01

I2/I1 Time Delay 0 - 100s 0.1s

I2/I1 Trip Enabled / Disabled

6.6 Earth Fault Overcurrent Protection



IN>1 Current Set 0.08 - 4.0In 0.01In

IN>2 Current Set 0.08 - 32In 0.01In

6.6.2 Polarising Quantities For Earth Fault Measuring Elements

The polarising quantity for earth fault elements can be either zero sequence or negativesequence values.


IN> Char angle 95 to +95 1

6.6.3 Time Delay Characteristics

The time delay options for the two earth fault elements are identical, stage 1 may beselected to be either IDMT or definite time. Stage 2 will provide a definite time delay. Thesettings and IDMT characteristics are identical to those specified for the phase overcurrentelements. The setting range for the definite time delayed element is as specified below:

Definite Time Characteristic

Element Range Step Size

All stages 0 to 200s 0.01s


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6.7 Zero sequence Power Protection (since B1.0)

Threshold Settings


Po Status Enabled/Disabled. -

Time Delay Fact. 0 2s 0.200s

Fix Time Delay 0 10s 0.010s

IN current set 0.05 - 4 In 0.01 In

P0 Threshold 0.05IN - IN 0.1IN

6.8 Channel Aided Directional Earth Fault Protection



Polarisation Zero seq. / Neg. seq. -

V> Voltage Set(Vn=100/120 V)

0.500 - 20 V 0.010 V

IN Forward 0.05 - 4 In 0.01 In

Teleprotection Time delay 0 - 10s 0.1s

Scheme logic Shared / Blocking / Permissive

Tripping Any Phase / Three Phases

6.9 Under Voltage Protection



V


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DT setting 0 - 100s 0.01s

TMS Setting (K) 0.5 - 100 0.5

Definite time and TMS setting ranges

6.10 Over Voltage Protection



V>1 Voltage Set(Vn = 100/120V)

60 - 185V 1V

V>2 Voltage Set(Vn = 100/120V)

60 - 185V 1V

6.10.2 Time Delay Characteristics

The Overvoltage measuring elements are followed by an independently selectable timedelay. The first stage has a time delay characteristics selectable as either Inverse Time orDefinite Time. The second stage has an associated Definite Time delay setting.

Each measuring element time delay can be blocked by the operation of a user defined logic(optical isolated) input.

The inverse characteristic is defined by the following formula :

( )t

K

M=

1

Where

K = Time Multiplier Setting

T = Operating time in seconds

M = Applied input voltage / Relay setting voltage (Vs)


DT setting 0 - 100s 0.01s

TMS Setting (K) 0.5 - 100s 0.5

Definite time and TMS setting ranges

6.11 Voltage Transformer Supervision


VTS Time Delay 1.0 - 20s 1s

3 phase undervoltage threshold 10-70V 1V

VTS I2> & I0> Inhibit 0 - In 0.01In

Superimposed current Delta I> 0.01 - 5A 0.01 A

6.12 Capacitive Voltage Transformer Supervision (since B1.0)


CVTS status Enabled / Disabled

CVTS VN> 0.500 - 22V 0.500V

CVTS Time Delay 0 300s 1s


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6.13 Current Transformer Supervision


CTS VN< Inhibit 0.5 - 22V (for Vn = 100/120V) 0.5V

CTS IN> Set 0.08In - 4In 0.01In

CTS Time Delay 0 - 10s 1s

6.14 Undercurrent Element

This element is used by the breaker fail and circuit breaker monitoring functions of the relay.

Name Range Step size

I< Current Set 0.05 3.2In 0.050In

6.15 Breaker Fail Timers (TBF1 and TBF2)

There are two stages of breaker fail that can be used to re-trip the breaker and back trip inthe case of a circuit breaker fail. The timers are reset if the breaker opens, this is generallydetected by the undercurrent elements. Other methods of detection can be employed forcertain types of trip (see Application notes Volume 1 Chapter 2).

Timer Setting range Step

tBF1 0 to 10s 0.005s

tBF2 0 to 10s 0.005s

CBF non Current reset I


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7. MEASUREMENT SETTINGS

7.1 Disturbance Recorder Settings

Setting Range Step

Record Length 0 - 10.5s 0.1s

Trigger position 0 - 100% 0.1%

Trigger mode Single / Extended

Sample Rate 12 Samples/Cycle Fixed

Digital Signals Selectable from logic inputs and outputs and internalsignals

Trigger Logic Each of the digital inputs can be selected to trigger arecord

7.2 Fault Locator Settings


Mutual compensation factor 0 to 7.000 0.001

Mutual compensation angle 0 to 360 1


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8. CONTROL FUNCTION SETTINGS

8.1 Communications Settings

Front port Communication Parameters (Fixed)

Protocol Courier

Address 1

Message format IEC60870FT1.2

Baud rate 19200 bits/s

Rear port settings Setting options Setting available for:

Physical link RS485 or Fibre optic IEC only

Remote address 0 - 255 (step 1) IEC / Courier

Modbus address 1 - 247 (step 1) Modbus only

Baud rate 9 600 or 19 200 bits/s IEC only

Baud rate 9 600, 19 200 or 38 400 bits/s Modbus only

Inactivity timer 1 - 30 minutes (step 1) All

Parity Odd, Even or None Modbus only

Measurement period 1 - 60 minutes (step 1) IEC only

8.2 Auto-Reclose

8.2.1 Options

The Auto-recloser in the distance protection allows either single* or three pole for the firstshot. The following shots are three pole only. Due to the complexity of the logic theApplication notes should be referred to.

NOTE: *P442 and P444 only

8.2.2 Auto-recloser settings


AUTORECLOSE(Configuration Setting)

ENABLE/DISABLE

Number of Shots 1, 1/3, 1/3/3, 1/3/3/33, 3/3, 3/3/3, 3/3/3/3 1

1P Dead Time 0.1 to 5s 0.01s

3P Dead Time 0. 1 to 60s 0.01s

Dead Time 2 1 to 3600s 1s



Healthy Window 0.01 to 9999s 0.01s (in CB control)

Reclaim Time 1 to 600s 1s

Discrimination time 0.1 to 5s 0.01s

A/R Inhibit Window 1 to 3600s 1s


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Block auto-recloser At T2At T3At TzpLoL Trip

I2> TripI>1 TripI>2 TripV2 tripIN>1 TripIN>2 TripAided D.E.F Trip

AR Close pulse length 0.1 to 10s 0.1s

Check synchronic settings


C/S Check Scheme for A/R Bit 0: Live Bus/Dead Line,Bit 1: Dead Bus/Live LineBit 2: Live Bus/Live Line.

Dead Bus/Dead Line with special PSL

C/S Check Scheme for ManCB

Bit 0: Live Bus/Dead Line,Bit 1: Dead Bus/Live LineBit 2: Live Bus/Live Line.

Dead Bus/Dead Line with special PSL

V< Dead Line 5-30V 1V

V> Live Line 30-120V 1V

V< Dead Bus 5-30V 1V

V> Live Bus 30-120V 1V

Diff Voltage 0.5-40V 0.1V

Diff Frequency 0.02-1Hz 0.01Hz

Diff Phase 5-90 2.5

Bus-Line Delay 0.1 to 2s 0.1s

8.3 Circuit Breaker State Monitoring

The relay can monitor the state of the circuit breaker using either a 52a or 52b signal, it ispossible to select which of these is being used on the relay menu. If the menu is used toselect the Both 52a and 52b option is selected then a discrepancy alarm can be detected. Ifthese contacts remain simultaneously open or simultaneously closed for >5s, then the CBStatus alarm will be indicated.


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8.4 Circuit Breaker Control


CB Control by Disabled/Local/

Remote/Local+Remote/Opto/Opto+local/Opto+Remote/Opto+Rem+local

Manual close pulse time 0.1 to 10s 0.01s

Trip pulse time 0.1 to 5s 0.01s

Man Close Delay 0.01 to 600s 0.01s

Healthy Windows 0.01 to 9999 0.01

C/S Window 0.01 to 9999 0.01AR single pole Disabled/Enabled -

AR three pole Disabled/Enabled -

8.5 Circuit Breaker Condition Monitoring

8.5.1 Maintenance alarm settings


I^ Maintenance 1 to 25000A 1 Summatedbroken current

No. of CB Ops Maint 1- 10000 1

CB Time Maint 5 - 500ms 1ms Circuit breakeropening time

8.5.2 Lockout Alarm Settings


I^ threshold 1 to 25000 1

No. of CB Ops Lock 1- 10000 1

CB Time Lockout 5 - 500ms 1ms

Fault Freq Count 0 to 9999 1Fault Freq Time 0 to 9999s 1s

Lockout reset by: CB close, User Interface

Manual close reset delay 0.01 to 600s 0.01s


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8.6 Programmable Logic

The programmable logic is not editable from the relay menu, a dedicated support package isprovided as part of the MiCOM S1 support software. This is a graphical editor for theprogrammable logic. The features of the programmable logic are more fully described withinthe application section of the user manual. As part of the logic each output contact has a

programmable conditioner/timer, there are also eight general purpose timers for use in thelogic.

The output conditioners and the general-purpose timers have the following setting range:

Time Range Step size

t1 to t8 0 to 4 hours 0.001s

8.7 CT and VT Ratio Settings

The primary and secondary rating can be independently set for each set of CT or VT inputs,for example the earth fault CT ratio can be different to that used for the phase currents.

Primary range Secondary range

Current transformer 1 - 30000 Ampsstep size 1 A

1 or 5 Amps

Voltage transformer 100 V - 1000 kVstep size 1 V

80 - 140 Vstep size 1 V

7. technical data

Documents