P821 (50 62 Tie CB) Test Report Rev 1

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SUMMARY REVISION PAGES 0 1 1 PURPOSE OF TESTS 2 X 2 REFERENCE DOCUMENT 2 X 3 SCOPE 2 X 4 RELAY TERMINLOGY 3 X 5 TEST EQUIPMENT 3 X 6 PRE-REQUISTES 3 X 7 PROCEDURES 4 X

8 RECORD TEST SHEET 6 X

8.1 RELAY INFORMATION 8.2 CT DATA:

8.3 PRODUCT CHECKS

8.4 MEASURMENT VALUE TEST: 8.5 BREAKER FAIL PROTECTION: 8.6 BINARY INPUT TEST :

8.7 BINARY OUTPUT TEST:

8.8 FIXED LED INDICATIONS TEST: 8.9 LED INDICATIONS TEST:

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1 PURPOSE OF TESTS

The purpose of the tests is to check the full functionality of the protection relay.

This procedure does not intend to check that all alarms and trips are correctly sent to the DCS or SCADA level. This part is already developed into dedicated DCS or SCADA Commissioning procedures.

This procedure does not intend to check all tripping matrix and PSL logic tests, this, when applicable, are described into a separate document, dedicated to the specific substation and feeder type.

2 REFERENCE DOCUMENTS

DOCUMENT _REFERENCEDOCUMENT VERSION/_DATE REMARKS

Protection Line Diagram Schematic Drawing Service Manual Operation Manual

Protection Relay Coordination Principles Relay setting Calculation

LED Display Configuration

3 SCOPE

Substation Name :- Diameter:

Bay :

Panel Number :

Relay Denomination in Scheme

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4 TERMINOLOGY

Code ( ANSI) Terminology

50/62 Breaker Fail Protection Including BF timers.

5 TEST EQUIPMENT USED

Sl No Description Make Equipment

Sl No. Calibration date Calibration due date 1. Secondary Injection Kit 2. Multimeter 3. Laptop _NA

Setting software Type : MICOM S1 Studio

Version : 2.14

6 PRE - REQUISITES

PRE-REQUISITES REMARKS

All Safety Condition Are Ok

All Competent Personnel Available For The Test Ac & Dc Supply Availability And Security PPE Safety Available.

All Other Relevant Safety Instructions Been Followed Coordination With Other Parties ( GIS, Transformer, Etc..)

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7 TEST PROCEDURES

The following procedures are written for demonstrating the main protection functions of the P821 relay using an Omicron test set or similar. The tests do not test the boundaries of all available function characteristics. They do test that the function is operating at a point on one chosen characteristic. This document is to be referred to when performing commissioning tests in association with the commissioning section of the service manual.

NOTE :

All the Test are performed in the Test Switch.

Omicron CMC156 Test Equipment or Any Equivalent To Be Used..

7.1 Testing the "CB Failure protection" function 7.1.1 MiCOM P821 relay parameters

Note the settings of the MiCOM P821 relays are by default the following:

 I>BF = 0,10 In

 Delay stage 1 = tBF1 = 100ms thus retrip after 100ms*

 Delay stage 2 = tBF2 = 200ms

Also **

 Output Relay operation (RL1, 2 and 3) if programmed (phase A, B and C)

 Output Relay operation (RL4) if programmed (Backtrip)

* The time delay does not take into account the opto-coupler input filtering and processing (which is 20 ms ± 1 ms.)

**This Output Relays are programmed for testing purpose only after test completion , Actual Programming of utput relays to checked.

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7.1.2 I>BF check

1. Energise a trip order input (A, then B, then C, then 3 phase)

2. Gradually inject the current into the 3 phases up to the stage value: retripping of the tripped phase (A, then B, then C, then A, B and C) should occur for a current equal to the stage (I>BF) to within ±2% followed by the backtrip

Action check:

1. Appearance of an alarm message on the display 2. Flashing of the “Alarm” LED

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4. Illumination of the LEDs associated with instantaneous information 50BF 5. Output Relay operation (RL1, 2 and 3) if programmed (phase A, B and C) 6. Output Relay operation (RL4) if programmed (Backtrip)

7.1.3 Timer Check tBF1 and not tBF2

1. Inject the current 1,00 In into the 3 phases 2. Energise the trip order input

3. After tBF2 cut the current injection, the retrip of the tripped phase (A or B or C) should occur at tBF1+20ms and no backtrip shall follow

Action check:

3. Illumination of the “Trip” LED if tripping is programmed

7.1.4 Timers tBF1 and tBF2

1. Inject the current 1,00 In into the 3 phases 2. Energise the trip order input

3. After tBF2 + 10ms (or more) cut the current injection, the retrip of the tripped phase (A or B or C) should occur at tBF1+20ms and followed by the backtrip at tBF2+20ms

Action check:

3. Illumination of the “Trip” LED if tripping is programmed

7.2 Testing of Binary Inputs :

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The opto-isolated inputs should be energized one at a time. Ensuring correct polarity, connect the auxiliary voltage to the appropriate terminals for the input being tested.

The line "INPUTS" in the "OP. PARAMETERS" menu gives the state of each input, a '1' indicating an energized input and a '0' indicating a de-energized input. When each input is energized one of the digits on the bottom line of the display will change to indicate the new state of the inputs.

7.3 Testing of Binary Output’s :

This test checks that all the output relays are functioning correctly. (8 output relays for the P821).The output relays should be energised one at a time. Connect a continuity tester across the terminals corresponding to output relay 1 .

In the following window in the "Relay Satus" sub-menu of the "OP PARAMETERS" menu: Relay 8 7 6 5 4 3 2 1

Status 0 0 0 0 0 0 0 1

Repeat the test for each relay.

Operation will be confirmed by the continuity tester operating for a normally open contact and ceasing to operate for a normally closed contact.

NOTE: It should be ensured that thermal ratings of anything connected to the output relays during the test procedure is not exceeded by the associated output relay being operated for too long. It is therefore advised that the time between application and removal of relay testing kept to the minimum.

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8 RECORD TEST SHEET 8.1 RELAY INFORMATION

Type No.: P821 Designation :

Model No : Nominal Current :

Serial Number Nominal Voltage` :

Firmware Version : Aux. Volts :

8.2 CT & VT DATA:

CTs CT rated primary current set as

CT rated secondary current set as Rated primary voltage (L-L) set as Rated secondary voltage (L-L) set as

8.3 PRODUCT CHECKS

Relay damaged?

Rating information correct for installation? Case earth installed?

External wiring checked against diagram? Test block connections checked?

Measured auxiliary supply V dc

LCD front panel display Clock set to local time?

Time maintained when aux. supply removed?

8.4 MEASURMENT VALUE TEST: Current Measurement

Phase injected

Current injected (Amps)

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L1-E 1.0 0 0

L2-E 1.0 0 0

L3-E 1.0 0 0

L1-L2-L3 1.0 0

8.5 BREAKER FAIL PROTECTION: 8.5.1 Sensitivity Check

Phase I> Setting Pickup Current

R Y B N

8.5.2 BF Timers Check

Phase Time Setting Stage 1 Measured Time Stage 1 Time Setting Stage 2 Measured Time Stage 2 R 100 ms 200 ms Y 100 ms 200 ms B 100 ms 200 ms N 100 ms 200 ms

8.6 BINARY INPUT TEST :

Input No. Terminal No. Active Function Assigned sheet Result

1 22-24 High SPARE*

2 _26-28 _High _SPARE*

3 _17-19 _High _{CB QA31 BFI 3-PH}

4 _21-23 _High _{NOT USED**}

5 _25-27 _High _{NOT USED**}

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8.7 BINARY OUTPUT TEST:

Output No. Terminal No. Type Function Assigned _{(Aux relay operated)} sheet Result

1 2-6 NO 2-4 NC 2 8-12 NO 8-10 NC 3 14-16 NO 4 18-20 NO 5 1-3 NO 6 5-7 NO 7 9-11 NO 8 13-15 NO

* SPARE: wired up to terminal blocks. ** NOT USED: Not wired.

8.8 FIXED LED INDICATIONS TEST:

LED No. LED Label Color Result

1 Trip Red

2 Alarm Yellow

3 Warning Yellow

4 healthy Green

8.9 LED INDICATIONS TEST: ( LEFT SIDE LED)

LED No. LED Label Color Result

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3 4

8.10 FINAL CHECKS

Item Description Result

1 All test equipment, leads, shorts and test block removed safely?

2 Disturbed customer wiring re-checked?

3 All commissioning tests disabled?

4 Circuit breaker operations counter reset?

5 Current counters reset?

6 Event records reset?

7 Fault records reset?

8 Disturbance records reset?

9 Alarms reset?

10 LEDs reset?

11 Secondary front cover replaced? (If applicable)

REMARKS

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