TESTING TIPS -2

Voltage for fuse failure relay should take at final stage of the voltage circuit.

It will block the operation of the main relay if any open wiring and faultily FT switch open operations.

DESIGN TIP -1 CT CIRCUIT

1.CT secondary star point should be equipment side and P2 should be equipment side.

CT CIRCUIT

To short the live CT put short link in the CT TB

To Isolate the equipment from the CT circuit open the CT FT switch

AC power panel Commissioning

AC power panel Commissioning

Set the proper current value in the main incomer MCCB.

Because when AC panel components operates the current goes peak value. This peak current should be withstand incomer MCCB.

380 KV GIS HI POT TEST

HI POT TEST

1. WHILE APPLYING VOLTAGE IN ONE PHASE OTHER TWO PHASE SHOULD BE EARTH

2. 380 KV APPLIED VOLTAGE FOR NEW SYSTEM = IMPULSE VOLTAGE X 40 % X 80%

EXAMPLE : - FOR 380KV 1425KV X 0.4 X 0.8 = 515 KV

3. SECOND TIME = Un X 1.2 = 380KV =454 KV

4. MEASURE SECONDARY VOLTAGE IN FLUK MULTIMETER 187 DON'T USE OTHER MULTIMETER

5. IF NEAR BUS IS ALREADY CHARGED ONLY SWITCHING TEST IS DONE . MEANS NEW BUS AND EQUIPMENT IS CHARGED WITH RATED VOLTAGE AND MONITOR 24 HOURS.

BELTEN CABLE

9271 2 CONDUCTOR, 124 OHM , TWINAXIAL CABEL

25 AWG (0.16 SQ MM)

Tips to test -1

1.While doing the Under voltage relay trip test increase the full voltage level and decrease slowly to get the correct results

2. While doing the Hand reset L/O relay pickup drop off test don't give the continuous voltage to the coil. Use MCB to on off. To get the pick up current put multimeter in "Fast max " range.

3.While test the CVT or VT connect the primary neutral with earth other vise result will be wrong.

LIST OF AREVA RELAYS

LIST OF ALL AREVA RELAYS

AREVA RELAYS

Line Protection

TYPES OF LINE PROTECTION

BASIC

PARAMETERS

SHCMES OF LP

RELAYS

TEST FORMATS

CABLE LAYING

BEFORE CABLE LAYING

1.There are two schedules

a. Laying schedule

b. Termination Schedule

2.Seperate the laying schedule in size vice for laying and gland calculations

3.Seperate the schedules in panel vice for termination and lug quantity

4.Compare the panel vice cable schedule with appropriate drawings

5.Keep at lest one spare core per cable.

6.Arange the following materials

a. Cable Jake

b. Cable rollers tools ext..

c. Cable cutter

d. White marker

e. Cello tape or masking tape and insulation tape

f. Aluminum ladder

g. Scrap cable sheath

h. Cable tie

download lugs manual

PROG

This is book PROG is very useful for every T & C Engineer

00 Application Tables

01 INTRODUCTION

02 Fundamentals

03 Fundamental Theory

04 Fault Calculations

05 Equivalent Circuits

06 Current and Voltage

07 Relay Technology

08-Protection Signalling and Tripping

09-Overcurrent Protection

10 Unit Protection

11 Distance Protection

12-Distance Protection Schemes

13-Protection of Complex Transmission

14 Auto Reclosing

15 Busbar Protection

16-Transformer and Transformer Feeder Prot

17-Generator and Generator Transf Prot

18-Industrial and Commercial

19-AC Motor Protection

20-Protection of AC Elec Rail

21-Relay Testing and Commissioning

22-Power Systems Measurements

23 Power Quality

24-Substation Control and Automation

25-Distribution System Automation

Appendix 1 Terminology

Appendix 2- ANSI&IEC Relay Symbols

THE DISMANTLED PANELS

HOW TO HANDOVER THE DISMANTLED PANELS TO SEC-EOA

1. Take the list of Dismantled materials

2. Go to SEC and meet the particular department foreman and inform him that the list of

Materials we are taken out from the substation.

3. If he says ok the go to facility maintenance get the Gate pass form ( Form dounload here)

4. The gate pass is in ARABIC and it should be fillip in Arabic.

5. Mention the vehicle name and number driver name and iqma number

6. Driver must have the SEC ID or other vice arrange the temporary access

7. Vehicle must have the gate entry sticker or otherwise arrange temporary access.

8. Get the signature from the foreman in the gate pass and go to ISPD LMPD.

9. Now bring out the materials from station

10. Dismantled all parts and segregate

11. Make MDR (Material disposal request ( Form download )

ABU HADRIYAH BSP

Protection bay C2 (A804,A805,A806)

Distance protection

1.Fault current enter side should be CT P1

2.If 1 1/2 scheme CT's cover both breakers and connect the CT wires parallal and given to Relay.

3. Voltage is taken from line side VT only.

4.Give trip to 94 Electric Lock Out Relay and send the trip camand( DTTR) to other end through PSE.

5. 94 will Trip TC1 and TC2 of A805,A806 breackers and initiate BF.

6. 94 trip by the following commands.

a. 21 relay

b. 67 relay

c. DTTR from next end

d.PD trip from other end

No cammands BF from other end

9.Trip cammand send to othere end.
a. DTTR (21 relay)
b.Second stage PD trip from both breakers

c.Secound stage Breaker failure trip from both breakers.

Breaker failure Protection

CT connection

The CT on bus side and P1 should be power intering in to breaker

A806

BF initiations

1.Set-1,Set-2, 94 LOR Al-Fadhili

2.86BB-1,86 BB -2 A806

3.86 BF (A805,A809,A812)

94 LOR (stage-1)

After 62BF-1 time

1. Retrip A806 (TC-1,TC-2)

86 BF-1, 86 BF-2 Stage-2 (2 Units)

After 62BF-2 time

1. Trip- A805

2. Bus bar intiate bus-2 (A803,A806,A809,A812)

3.Trip send Other end Al Fadili

4.Close black for A 805,A809,A812

Breaker Failure for A805

Initiation
1.86-1, 2, 3, 4 (Transformer High Side)
2.86BF A609 (Transformer Low Side)
3.86BF A804,86BF A806
4.94-1,94-2 (line-1)

94 BF Stage-1

1. After 62BF-1 time Retrip A805

86 BF Stage-2 (2 Units)

After 62BF-2
2. Trip & Close black A804,A806
3. Trip & Close black A609 & A301
4. Trip & Close black other end Al fadhili through PSE
5. BF initiation A804,A806,A609
6. Trip save A805.


Breaker Failure for A804

Initiation
1.86-1, 2, 3, 4 (Transformer High Side)
2.86BF A609 (Transformer Low Side)
3.86BF A805,86BF A807, 86BF A810
4.86 BB-1,2 A804

94 BF Stage-1

7. After 62BF-1 time Retrip A804

86 BF Stage-2 (2 Units)

After 62BF-2
8. Trip & Close black A807,A810,A805
9. Trip & Close black A609 & A301
10. Bus -1 BB initiation (A807,A810)
11. BF initiation A807,A810,A805, A609
12. Trip save A804.