P633 (TEE2) Test Report Rev 1

Gulf Cooperation CouncilInterconnection AuthorityGCCIA

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GCC Interconnection Project - Phase I

P633Site Acceptance Test Report

MiCOM P633TEE2

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SUMMARYREVISION

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 10 X

8.1 RELAY INFORMATION

8.2 CT DATA:

8.3 PRODUCT CHECKS

8.4 MEASURMENT VALUE TEST:

8.5 DIFFERENTIAL PROTECTION

8.6 BINARY INPUT TEST :

8.7 BINARY OUTPUT TEST:

8.8 FIXED LED INDICATIONS TEST:

8.9 LED INDICATIONS TEST: ( LEFT SIDE LED)

8.10 GOOSE CHANNEL TEST

8.11 FINAL CHECK

AREVA T&D GCCIA / SNCL

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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, is described into a separate document, dedicated to the specific substation and feeder type.

2 REFERENCE DOCUMENTS

DOCUMENTDOCUMENT REFERENCE

VERSION/ DATE

REMARKS

Protection Line Diagram

Schematic Drawing

Service Manual

Operation ManualProtection Relay Coordination Principles Relay setting Calculation

PSL logic Connections

LED Display Configuration

3 SCOPE

Substation Name :-

Diameter:

Bay :

Panel Number :

Relay Denomination in Scheme

Scheme to be Checked Relay Functionality Test.


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4 TERMINOLOGY

Code ( ANSI) TerminologyTEE2 TEE busbar Differential Protection

5 TEST EQUIPMENT USED

Sl No Description MakeEquipment

Sl No.Calibration

dateCalibration due

date

1. Secondary Injection Kit

2. Multimeter

3. Laptop NA

Setting software

Type : MICOM S1 StudioVersion : 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 P633 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 Differential protection

Following parameters define differential characteristics :

Menu Data point Setting in our examplePara/Funct/PSS1/Diff Idiff> 0.2 Iref

M1 0.3M2 0.7IR, m2 4.0 Iref

7.1.1 Checking of first section :

Objective : To test threshold Idiff >

Test method :

Inject balanced currents in all phases. ( one by one) (say 0.150 A for our example)Gradually increase currents till relay operation. Note down the value.

Pass criteria :

The operating current should be within +/- 5% of { Idiff> / Kam,a}.

7.1.2 Checking of second section :Objective : To check slope m1.

Test method : Simulate differential and restraining currents such that they lie in the region over and under the curve.


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Restraining current Ir = 0.5 * { |Ia| + |Ib| }

Differential current Id = | Ia + Ib |

Inject 1 A balanced currents in HV and LV windings.

Gradually increase HV current till relay operation. Note down value.

Pass criteria :

Characteristic equation for the range (0.5 Idiff >) < (Ir) <(Ir m2)

Id = (m1*Ir ) + Idiff> * (1- 0.5*m1)

In our case , m1 = 0.3Idiff> = 0.2

Please note that “Id” and “Ir” are derived by the relay after amplitude and vector group matching. Hence, we have to multiply injected currents by amplitude matching factors for calculation of “Id” and “Ir” , then we substitute this value of “Ir” into characteristic equation, To find Theoretical value of Id.then compare with measure value of Id .

7.1.3 Checking of third section :

Objective : To check slope m2 and threshold IR m2.

Test method : Simulate differential and restraining currents such that they lie in this region over and under the curve

Restraining current Ir = 0.5 * { |Ia| + |Ib| }

Differential current Id = | Ia + Ib |

Inject 5 A balanced currents in HV and LV windings. (Gradually increase HV current till relay operation. Note down value.

Pass criteria :


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Characteristic equation for the range Ir m2 < Ir

Id = (m2*Ir ) + Idiff> * (1- 0.5*m1) + Ir m2 * (m1-m2)

In our case , m1 = 0.3M2 = 0.7 Idiff> = 0.2Ir m2 = 4.0

Please note that “Id” and “Ir” are derived by the relay after amplitude and vector group matching. Hence, we have to multiply injected currents by amplitude matching factors for calculation of “Id” and “Ir”, then we substitute this value of “Ir” into characteristic equation, To find Theoretical value of Id.then compare with measure value of Id .

7.1.4 Checking of harmonic blocking :

Following settings affect the second harmonic blocking

Menu Data point Setting in our examplePara/Funct/PSS1/Diff Rush I(2f0)/I (f0) PS1 20%

Objective : To check the set threshold for second harmonic blocking

Test method :

Test module – DIFFERENTIALUse “harmonic” tab. Select second harmonic injectionSet Idiff = 1.0 I/In

Ixf = <20% , say 19%, observe that DIFFERENTIAL element of relay trips.Ixf = >20% , say 21%, observe that DIFF. Element doesn’t trip

Pass criteria : Measured second harmonic threshold for blocking of differential element should be +/-10% of set value.

7.1.5 Checking of Idiff >> :

Following setting is used for rapid (high-set) differential protection function.


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Menu Data point Setting in our examplePara/Funct/PSS1/Diff Idiff >> PS1 6.0 Iref

Test method :

Test module – DIFFERENTIALUse “harmonic” tab. Select second harmonic injection ( to insure only Idif>> is operational)Set Idiff = say, 5.0 I/In

Ixf = >20% , say 25%, observe that DIFFERENTIAL element of relay trips.

If injected “Idiff” exceeds 6.0 Iref, then the relay trips irrespective of second harmonic content.

Pass criteria :

Actual differential current can be seen from relay measurement menu

Menu Data point ReadingOper/Cyclic meas/Meas op. Data/Diff

Diff current 1 This should be within +/- 10% of 6.0

7.2 Testing of Binary Inputs :

Apply nominal Voltage on respective Relay terminal and Check the Healthiness of Binary Inputs in the System Manu – Relay input status. ( 0 or 1 ) Note : if the BI is used in the scheme the BI will be tested along with scheme.

Caution : please make sure of Nominal voltage and Polarity of Terminal before apply the voltage to relay.

The status of each opto-isolated input can be viewed in the Measurements + Tests subheading in the menu, under Measurements/I.O Status Monitor, example cell for opto input U2001 [153.086: Measurements + Tests/Measurements/I.O. Status Monitor/INP, State U 2001]. A de-energized input is indicated by the display ‘Low’, and when an input is energized the display should read ‘High’.


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7.3 Testing of Binary Output’s :

This test checks that all the output relays are functioning correctly. It can also be used to verify that output contact wiring is routed to the correct location, via the panel/cubicle wiring. Connect a continuity tester across the terminals corresponding to the output relay being tested, as given in the external connection diagram. Output contacts will be operated by manual commands - ensure that contact operation is permitted, without dangerous/unwanted consequences. For example, operation of contacts assigned to trip or close duties should only be undertaken if the CB is locked for no operation, or if operation is permitted. The output relays should be energized one at a time. The means of operating contacts is within the Control and Testing sub-heading in the menu, via the heading Measurements + Tests. The user first selects which contact should be operated, at cell [003.042: Measurements + Tests/Control + Testing/OUTP, Relay Assign. f.Test]. The contact to be operated is selected by scrolling down the list and selecting Configure. Once configured, stepping down to the next cell in the menu [003.043: …/OUTP, Relay Test] allows the user to apply the test by selecting ‘Execute’. With default settings, the selected contact will be operated for 1 second. 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 contact 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 contact test is kept to the minimum.

Note : If the Outputs are assigned for function this will be tested along with Functional test of

relays.


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8 RECORD TEST SHEET

8.1 RELAY INFORMATION

Type No.: P633 Designation :

Model No : Nominal Current :

Serial Number Nominal Voltage` :

Firmware Version : Aux. Volts :

8.2 CT DATA:

CTs

SIDE 1

CT rated primary current set as

CT rated secondary current set as

Ignd-CT rated primary current set as

Ignd-CT rated secondary current set as

CTs

SIDE 2





CTs

SIDE 3





8.3 PRODUCT CHECKS

Relay damaged?

Rating information correct for installation?

Case earth installed?


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External wiring checked against diagram?

Test block connections checked?

Measured auxiliary supply V dc

Value measured between terminals 8 and 9 V dc

LCD front panel display

Clock set to local time?

Time maintained when aux. supply removed?

8.4 MEASURMENT VALUE TEST: 8.4.1 CT 1 Current Measurement

Phase injected

Current

injected (Amps)

Secondary Current read on relay display (A)

Primary Current read on relay display (A)

PH-N IR IY IB IN IR IY IB IN

L1-E 1.0 0 0 0 0

L2-E 1.0 0 0 0 0

L3-E 1.0 0 0 0 0

L1-L2-L3 1.0 0 0

8.4.2 CT2 Current Measurement

Phase injected

Current

injected (Amps)




L1-E 1.0 0 0 0 0

L2-E 1.0 0 0 0 0

L3-E 1.0 0 0 0 0

L1-L2-L3 1.0 0 0


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8.4.3 CT 3 Current Measurement

Phase injected

Current

injected (Amps)




L1-E 1.0 0 0 0 0

L2-E 1.0 0 0 0 0

L3-E 1.0 0 0 0 0

L1-L2-L3 1.0 0 0

8.5 DIFFERENTIAL PROTECTION Settings:Winding “a” amplitude matching factor – Kam,a

Winding “b” amplitude matching factor – Kam,b

Winding “c” amplitude matching factor – Kam,b

Vector group reference ( a-b)

Vector group reference (a-c )

Zero sequence filter on winding “a”

Zero sequence filter on winding “b”

Zero sequence filter on winding “c”

Idiff>

M1

M2

IR, m2


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8.5.1 Checking the first section of tripping characteristics & the Operating Time.

Expected operating current = (Idiff>*Inom)/(Kam,a*Ks,1,a) =Expected Operating Time < 40 ms

Test Winding Expected operating current

Measured current

Injected current

Operating time(ms)

(R phase)

Side a 1.0 A

Side b 1.0 A

Side c 1.0 A

(Y phase)

Side a 1.0 A

Side b 1.0 A

Side c 1.0 A

(B phase)

Side a 1.0 A

Side b 1.0 A

Side c 1.0 A

8.5.2 Checking of second/third section of tripping characteristic (Between sides a & b) : Test method : 1 phase currents injected in winding “a” and “b”.

Vector group ends a-b: kam,a: kam,b:

PHASE Section of tripping

char. Under test

Winding “a”

Injected Current

Winding “b”

Injected Current

Restrain current

Measured

Differential current

Calculated Measured (R phase) Second

Third

(Y phase) Second

Third


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(B phase) Second

Third

8.5.3 Checking of second/third section of tripping characteristic (Between sides a & c) : Test method : 1 phase currents injected in winding “a” and “c”.

Vector group ends a-c: kam,a: kam,c:

PHASE Section of tripping

char. Under test

Winding “a”

Injected Current

Winding “c”

Injected Current

Restrain current

Measured

Differential current

Calculated Measured (R phase) Second

Third

(Y phase) Second

Third

(B phase) Second

Third


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8.5.4 Checking of Magnetizing Inrush Restraint :

Harmonic Blocking Setting: %

Applied Phase Injected Current Pick up % 2nd Harmonic

(R phase)

Side a

Side b

Side c

(Y phase)

Side a

Side b

Side c

(B phase)

Side a

Side b

Side c

8.6 BINARY INPUT TEST :Input No. Terminal No. Active Function Assigned sheet Result

U901 19X118-19X119 High SPARE* 212

U902 19X120-19X121 High SPARE* 212

U903 19X122-19X124 High NOT USED**

U904 19X123-19X124 High NOT USED**

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

8.7 BINARY OUTPUT TEST:

Output No. Terminal No. TypeFunction Assigned (Aux relay operated)

sheet Result


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K90119X101-19X102 NO DTT-B SEND 211

19X103-19X104 NO 3 PHASE TRIP TO 86CB 212

K902 19X105-19X107 NC NOT USED**

19X106-19X107 NO

K903 19X108-19X109 NO NOT USED**

K904 19X110-19X111 NO NOT USED**

K905 19X110-19X112 NO NOT USED**

K906 19X110-19X113 NO NOT USED**

K907 19X110-19X114 NO NOT USED**

K908 19X115-19X117 NC NOT USED**

19X116-19X117 NO NOT USED**

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

8.8 FIXED LED INDICATIONS TEST:LED No. LED Label Color Result

LED H1

LED H2

LED H3

LED H4

8.9 LED INDICATIONS TEST: ( LEFT SIDE LED)LED No. LED Label Color Result

LED H5

LED H6

LED H7


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LED H8

LED H9

LED H10

LED H11

LED H12

LED H13

LED H14

LED H15

LED H16

8.10 GOOSE CHANNEL TEST ( IF APPLICABLE)

Channel Receive Test Channel Send Test

Channel No Function Assigned Result Channel No Function Assigned Result

8.11 FINAL CHECKS


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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

………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………

END OF REPORT


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P633 (TEE2) Test Report Rev 1

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