ashida numerical 3 phase tx. differential protection...

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ASHIDA ELECTRONICS PVT LTD. ASHIDA HOUSE, Plot No. A-308, Road No. 21, Wagle Industrial Estate,Thane (W)-400 604. INDIA. E-mail: [email protected] Web: www.ashidaelectronics.com

Note: Due to our po l icy to upgrade our products constant ly , we reserve the r ight to supply products which may vary s l ight ly f rom that ind icated above.

Type: ADR233A(ADITYA–V2 Ser ies )

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ASHIDA Numerical 3 Phase Tx. Differential Protection Relay

L5

TRIP

L6

L7

ADR 233B_V2

PROTH.

FAULT 87

REF

BF

ERR

Ashida Numerical Directional 3O/C + 1E/F Protection RelayAshida Numerical 3 Phase Tx. Differential Protection Relay

L5

TRIP

L6

L7

L5

TRIP

L6

L7

ADR 233B_V2ADR 233A_V2

PROTH.

FAULT 87

REF

BF

ERRPROTH.

FAULT 87

REF

BF

ERR

Ashida Numerical Directional 3O/C + 1E/F Protection RelayAshida Numerical 3 Phase Tx. Differential Protection Relay Ashida Numerical Directional 3O/C + 1E/F Protection RelayAshida Numerical 3 Phase Tx. Differential Protection Relay

L5

TRIP

L6

L7

ADR 233B_V2

PROTH.

FAULT 87

REF

BF

ERR

Ashida Numerical Directional 3O/C + 1E/F Protection RelayAshida Numerical 3 Phase Tx. Differential Protection Relay

L5

TRIP

L6

L7

L5

TRIP

L6

L7

ADR 233B_V2ADR 233A_V2

PROTH.

FAULT 87

REF

BF

ERRPROTH.

FAULT 87

REF

BF

ERR

Ashida Numerical Directional 3O/C + 1E/F Protection RelayAshida Numerical 3 Phase Tx. Differential Protection Relay Ashida Numerical Directional 3O/C + 1E/F Protection RelayAshida Numerical 3 Phase Tx. Differential Protection Relay

Protection Features:

3Phase Tx. Differential Protection + REF

Programmable (Non- Volatile) Setting By

local keys as well as remote setting by

communication port

Latching of fault current value.

Operation base on fundamental frequency

value.

Harmonics restrain for Tx charging and CT

saturation condition.

Breaker Failure detection.

Cross harmonics restrain.

Programmable starting current.

Programmable Internal ICT( interposing CT)

ratio to match different transformer having

different vector groups

Programmable dual bias setting

Wide setting range 10-50% for bias in steps of

5%

Programmable 2nd HRM restrain 10% - 80%

Relay Design Features: Large 20x4 LCD display for Parameter and

setting display

Disturbance Recorder. Up 1 sec of actual

waveform of current along with logical and

physical status, are captured & saved in the

built-in memory with date time stamping, for

analyzing fault condition & fault location.

Fully communicable with IEC 60870-5-103 or

IEC61850 protocol

Very low burden on CT (less than 0.5VA)

Continuous monitoring of module’s internal

hardware and alarm generation in case of

failure of any critical components.

Facility to synchronised Relay time from

SCADA

5 Digital Output contacts for local alarm as

well as tele-signalling

5 Optically isolated digital status input for

monitoring of status and avoid used of

external relay logic

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100 nos of event memory, event such CB

close, Trip, digital status change, relay pkp

etc. All events are with date and time stamped

up to 1ms.

10 nos of Fault data stored with keypad

interface and time stamping.

Description:

ADR233A is second generation Numerical

Transformer differential Relay. It consist all the

necessary protection and monitoring functions

required for transformer, it consist of

1. High Speed Digital DSP Controller

2. Analog Measuring Module

3. Power supply Module

4. Digital Input output module.

The High speed Digital Signal Controller

continuously monitors line HV and LV current +

REF current. Along with different status input,

through CTs, and optical isolated status

connections. The high-speed micro-controller

samples these current signals through a A/D

converter. The Digital Signal performs powerful

Numerical Algorithms to find out RMS of

fundamental & harmonic contents of the current.

All measurement is tuned to fundamental

frequency i.e 50Hz, thus relay remain stable

during distorted waveform generated electronics

loco-motive. All these measure values are then

used for different protection function.. These

measured values are also displayed on large 20 x

4 LCD display for metering purpose. The DSC

also monitor different digital input through optical

isolator and control potential free contact for

control CB and generate ALARM and Tele-

signalling.

The power supply module is basically DC – DC

converted designed using modern PWM based

Switching mode technique to convert 110Vdc

station battery supply to the 12V and 24Vdc low

voltage supply for relay electronics and control

circuit. It also provides necessary isolation from

station battery. There are two type of power supply

modules are available 1) having range of 77Vdc –

250Vdc. Covering requirement of 110Vdc and

220Vdc station battery system 2) having range of

18Vdc to 52Vdc covering 24Vdc, 30Vdc, 48Vdc

station battery requirement.

The relay is having total 8 nos of dual LED of high

intensity for easy identification of type of fault for

easy user interface. LEDs L5, L6 and L7 and

Relay R1 to R5, digital status input and controlled

output are fully programmable via key pad

interface.

Main Functions The ADR233A are having following protection

functions.

1. Transformer differential protection.

2. REF protection.

3. Breaker Failure Detection.

4. Monitoring Functions.

Each of these functions are independently

programmable and can be enable or disable by

user depending upon requirement

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Differential Protection (87):

The ADR233A monitor HV and LV current of

power transformer through respective CT. The

sample current values are processed by power

fully DSP controller. It convert the these current

samples in to equivalent vectors and numbers of

parameter such as RMS values of IHV and ILV

and phases. IHV represent HV current and ILV

represent LV current. Normally to match HV and

LV CT ratio, phase shift between two winding due

to transformer vector group, ICTs (interposing

CTs) are needed. In ADR233A ICTs are software

selectable. There are two separate ICT ratio and

vector groups are provided, one for HV value and

another for LV value. After applying this corrective

factor, relay calculate operating and restring signal

from IHx and ILx (IH1 and IL1 is HV and LV

current after applying ICT correction factor. x

denote phase, 1 for R, 2 for Y and 3 for B). Base

on this and setting relay decide to operate or

restrain.

Operating Current Iox = IHx – ILx

Restraining Current

Ibx = (|IHx| +| ILx| ) / 2

Relay operate when Io is greater than pick-up current setting and

Iox > = S Ibx Where S = set bias. (Slope 1)

The relay support dual bias characteristic. The

bias (slop 1) is settable from 10% to 50% This

is a normal bias characteristic. The relay

follows this characteristic up to Ibx become

equal to 2nd Bias I setting. During heavy

through fault due to CT saturation large

difference current might generate, which lead

to mal operation of relay. To prevent mal

operation during such heavy through fault relay

is provided with dual bias characteristic. In

which after 2nd Bias I setting the relay change

it bias setting from set value to 80%

automatically.

The relay is provided with differential highest

protection where |IHx-ILx| is greater than a

preset value relay will provided high-set

protection. High-set setting can be bypassed

when it is not required. The relay detect

transformer charging condition from 2nd

harmonics contents. If 2nd harmonics are more

than set limit then relay block tripping

operation. Similarly relay detect over excitation

condition from 5th and restrain it operation.

Most of the relays are multifunction and having

large numbers of setting. The ADR series relay

SLOP 2SLOP 1 SLOP 2SLOP 1

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having big 4 line 20 character back lit LCD

display and very strong user interface, this

make very easy to manage the relay setting.

All setting are arranged in menus for easy

understanding of parameter

Maximum settings in one display

The relay shows all the parameters such current

before ICT current after ICT, Primary current,

Bias and

difference current.

Restricted Earth Fault:

The relay is equipped special REF protection

section for transformer winding. The setting for

REF protection is 5% to 80% of rated. The relay

give instant trip command as soon as it detected

EF in restricted zone.

Breaker Failure Detection:-

Normally after tripping current should become

Zero within 100 – 200ms time depend upon type

of fault and breaker mechanism. After Fault

ADR233A trigger internal timer (settable from 0.1s

to 1.0s) If fault is not cleared during this time then

relay declare as Breaker fail (LBB function) and

change another contacts. This contact is marked

as Breaker Fail can be used to trip back up

breaker or can be used to generate ALARM

signal.

Programmable DI/DO and LED:-

The ADR233A has got 5 digital outputs, 5 opto-

isolated input and 6 general purpose LEDs. These

can be programmed by local key board. Any logical

of physical status can be assigned to any relay

contact The logic of digital status input as well as

logical status can be formed and assigned to any of

the relay output. The disturbance record can be

trigger from external logical input.

Monitoring Functions (Event, Disturbance Record):-

Apart from basic protection functions. Relay is

continuously monitors all substations operation

through status, it internal functions, internal

hardware etc. if any changed is observed it

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marked as event. Such type of events is stored in

internal non-volatile memory along with time

stamped. Following some of the events. Relay

PKP, Relay Reset, CB Trip, CB close, Changed of

any digital status input, Relay setting changed etc.

Up to 100 such event can be stored and can be

download for detailed analysis. Apart from Event

record Relay also record actual waveform of

current along with all digital and logical status

during fault condition. Up to 10 such waveforms

can be recorded, the duration of disturbance

record is 1 sec. The disturbance record can be

trigger from physical status input as well as

from pick, trip operation of relay. This waveform

can be downloaded through communication port

for further analysis.

Relay Talk Software:

The general communication software is provided

to communicate with relay, known as Relay Talk.

By using this software data such as event log,

disturbance records etc can be down loaded and

can be further analysis. The disturbance record

data can be saved in standard COMTRADE

Format which is understandable by numbers of

relay testing units for play back.

Following as some of software clips

All The data can view at time

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Event list with real time

The waveform and logical and physical status latched by relay can be view and analysed

Data can be viewed as raw sine wave

or RMS value

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While Order ing Specify the fol lowing Information for ADR233AA Relay

Order ing informat ion:

A D R 2 3 3 A - A M - X X X - X X - X - X - X X - X

Example ADR233A – AM-201-01-3-0-02-0 Type: ADR233A wi th s tandard set t ing IEC60870-5-103 com St . Back termina l layout Cabinet Type: CSE -150 H Termina l Removable Aux i l ia ry Supply: 77-250Vdc CT sec: 1 Amp. / 5 Amp selectable

AM XXX XX X Over current Earth Fault Relay

For Adity-V2 series start from 201. For V1 series refer respective document 201 01 Relay with standard Back Connection with IEC60870-5-

103 Communication CSE – H- 150 3

202 01 Relay with standard Back Connection with IEC61850 Communication

CSE – H- 150 3

D e f i n i t i o n o f M o d e l N o o f A d i t y a S e r i e s o f R e l a y s

A M X X X – X X – X – X – X X – X

Auxiliary Supply 01 = 18 – 52 V dc 06 = 110 V dc 02 = 77 – 250 V dc 07 = 220 V dc 03 = 24 V dc 04 = 30 V dc 05 = 48 V dc

Reserved for Future Use

PT Secondary 0 = NO PT 1 = 63.5 PT sec

CT Secondary 1 = 1 Amp. 2 = 5 Amp. 3 = 1 Amp. / 5 Amp. Selectable

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Technical Specifications:

General specifications Sr. No. Specification Particulars

I. Current Input : Suitable for CT secondary 5 Amp. or 1 Amp site selectable II. Aux. Supply : 77 - 250VDC. Or 18V – 52V to be specify

III. VA burden on CT : Less than 0.2VA IV. VA burden on Aux. : Less than 10 Watts V. Operating Temp. range : -10 deg. To + 65 deg.

VI. Continuous Current carrying capacity

: 2 x of rated

VII. Pick up : with in 1.1 times of set VIII. Reset Value : 95% to 90% of pick up.

IX. Output Contact : 2 for Trip : 1 for REF Trip : 1 for BF : 1 for PROTH. : 1 for RL OK : 5 for General Programmable

X. Contact Rating : Continuous: 5A : Make & carry for 0.5 sec : 30A : Make carry for 3 sec : 15A

XI. Opto Isolated input general programmable

: 2 + common Input : 5 -ve common

XII. Operating Time : Diff < 40ms at 2 times :REF < 25ms at 5 times

XIII. Thermal With stand for CT : 20 x of rated for 3.0 sec.

Differential Protection (87) : 87 OFF/ON : Operating Current (Io) 10% - 100% insteps of 1%

: Bias : 10 - 50%. In steps of 5% : 2nd Harm. Restrain : 10% to 80 % settable : High Set setting : 100% to 2000% in steps of 100%

: 2nd Bias I 100% -400% insteps of 50%

Vector group compensation for HV winding

: VH:- Yy0,Yy2,Yy4,Yy6,Yy8,Yy10,Yd1,Yd3,Yd5, Yd7,Yd9,Yd11,Ydy0 and Ydy6

XIV.

Vector group compensation for LV winding

: VL:- Yy0,Yy2,Yy4,Yy6,Yy8,Yy10,Yd1,Yd3,Yd5, Yd7,Yd9,Yd11,Ydy0 and Ydy6

REF section (Ie) :Ie> : OFF / ON XV. Ie :Ie> 5% - 80% insteps of 5%

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Breaker Fail (BF) :BF OFF/ON XVI. :BF delay : 0.1S – 1.0s

Operational Indicators (Flags) PROT.H /ERR : Green LED indicates Relay OK (Protection Healthy)

: In case of following condition led become Red 1. Problem in relay Hardware.

FAULT - 87 : Red LED indicates FAULT Hand Reset (HR) Type. REF : Red LED indicate REF Fault

XVII.

BF : Green LED indicate Breaker Fail (HR) Type L5 / L6 / L7 : Spare LED Programmable TRIP : Green LED indicates Output trip relay contact closer (SR) Type

: For Cabinet Type - MAC01302 XVIII. Drawing References : For Back Connections - ADV01301

: For Typical External connection - ADV01401 : For Draw-out Arrangement - MAC01303

Sr. No. Title Standard no. Electromagnetic Compatibility Type Test :

I. High Frequency test : IEC 60255-22-1, class – III : Frequency : 1MHz Damped Oscillatory : Longitudinal :5 KV (peak) : Duration: sec duration 2 sec. : Between input current Terminal

II. Electrostatic discharge Direct application

: IEC 60255-22-2 Class III and IEC 61000-4-2 class III. : Contact discharge: 6kV, : Air discharge: 8KV : Polarity: both +ve and –Ve polarities.

III. Indirect application : IEC-61000-4-2, Class-III

IV. Fast transient disturbance

: IEC 60255-22-4 and IEC 61000-4-4, class A : 1.2KV; 5/50ns; 5KHz burst duration = 15ms. : Repetition rate 300ms; Both polarities; Ri = 50Ω; duration 1 min.

V. Surge immunity test

: IEC 60255-22-5 / IEC 61000-4-6 class 4 : Differential Mode = 2kV : Common Mode = 4kV : 1.2/50uS , 5 surges of each polarity

VI. Power frequency immunity test : IEC-60255-22-7, Class-A

VII. Power frequency magnetic field test

: IEC-61000-4-8, Class-V

VIII. Radiated electromagnetic field disturbance

: IEC- 60255-22-3 : EN-61000-4-3 : Frequency 80MHz – 1GHz

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IX. Conducted Disturbance

induced by Radio Frequency field

: IEC 60255-22-6 / IEC 61000-4-6: 1996. : Freq. 150kHz – 80MHz, Amplitude 10 V, Modulation 80% AM @ 1

KHz X. AC Ripple in DC supply

Test : IEC 60255-11

XI. Radiated emission : IEC- 60255-25 Insulation tests:

XII. High Voltage Test

: IEC 60255-5. class – III : At 2.5kV 50Hz between all terminal connected together and

earth for 1 minutes XIII. Impulse Voltage Test

: IEC60255-5. class – III : Test voltage: 5KV (peak) 1.2 / 50us, : Energy :0.5 J, : Polarity : + ve and – Ve : Nos. of impulses : 3 positive and 3 negative impulse : Duration between Impulses : 5 sec.

Environmental tests: XIV. Cold test Storage test : IEC-60068-2-1 XV. Dry heat test : IEC-60068-2-2

XVI. Damp heat test, steady state : IEC-60068-2-3

XVII. Damp heat test, cyclic : IEC-60068-2-30 CE compliance XVIII. Immunity : IEC-60255-26 XIX. Emissive Test : IEC- 60255-26 XX. Low voltage directive : EN-50178

Mechanical tests

XXI. Vibration : IEC 60255-21-1 class 1 : Frequency Range = 10Hz – 150Hz , acceleration. = 1gn (9.8 m/s2) : Sweep rate 1 octave/min; 20 cycle in 3 orthogonal axis.

XXII. Shock and bump : IEC- 60255-21-2 XXIII. Seismic : IEC-60255-21-3 Revision Date Description

01 27 Jan 2008 Original specs

ashida numerical 3 phase tx. differential protection...

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