Protection Relay
FAKOOR SANAT TEHRAN Commissioning Standard Test Formats
Description: 7SJ622 Record No.:
Bay no.: SS121-33KV Drawing ref.: V-1 Sheet: 1 of 6
Contractor: FEEDER NO.: U00 COUPLING Substation No : 121
Note:
The approved updated final settings should be applied and printed out from the relay
by using the software of the relay.
The following test format contains minimum required tests and some of settings are
mentioned as an example and not as limitation.
1. GENERAL DATA & INFORMATION
Panel No. SS121-33KV CT Ratio 800/5
Relay Type 7SJ62 In 5
Manufacturer SIEMENS VT Ratio 6.6KV/110V
SERIAL NO Vn 63.51V
No. of contacts: Draw. & Sh No. : VII-1
Order - No. Conn.Diag.No.
Software Version DIGSI 4.87 DC. Auxiliary. Voltage 110V-DC
Opto-coupler supply: 110V-DC Frequency Fn 50 Hz
2. MECHANICAL CHECKS AND VISUAL INSPECTION
Item Description Remarks
1. Inspect for any physical damage or defects. Yes N/A
2. Verify connections and ferrules as per approved drawings Yes N/A
3. Check tightness of all the connections. Yes N/A
4. Check Apparatus List Yes N/A
5. Check relay version and switching elements on printed circuit board Yes N/A
Tested by: masoud karimi Witnessed by:
Signature & Date: Signature & Date:
Protection Relay
FAKOOR SANAT TEHRAN Commissioning Standard Test Formats
Description: 7SJ622 Record No.:
Bay no.: SS121-33KV Drawing ref.: V-1 Sheet: 2 of 6
Contractor: FEEDER NO.: U00 COUPLING Substation No : 121
3. ELECTRICAL TESTS
3.1. FUNCTION TEST
ITEM DESCRIPTION REMARKS
1. Human Machine Interface (HMI) Checked. Yes N/A
2. Case Earthing checked. Yes N/A
3. LED’s Function Checked. Yes N/A
4. Trip Contacts Checked. Yes N/A
5. Reset Function Checked Yes N/A
6. Group active Functions Checked Yes N/A
7. Binary inputs checked. Yes N/A
8. Output Relays Checked Yes N/A
9. Event Display on HMI Screen Checked Yes N/A
10. Test switch / plug checked for correct function. Yes N/A
11. Watchdog contacts checked Yes N/A
12. Current shorting facility. Yes N/A
3.2. RELAY BURDEN
ITEM DESCRIPTION DC Voltage (V) Current (mA) V.A
1 Normal Condition 125 50 6.25
2 Fault Condition 125 52 6.5
Burden =7 VA
Tested by: masoud karimi Witnessed by:
Signature & Date: Signature & Date:
Protection Relay
FAKOOR SANAT TEHRAN Commissioning Standard Test Formats
Description: 7SJ622 Record No.:
Bay no.: SS121-33KV Drawing ref.: V-1 Sheet: 3 of 6
Contractor: FEEDER NO.: U00 COUPLING Substation No : 121
3.3 SECONDARY INJECTION TEST:
MEASUREMENTS
Open Degsi 4 Measurement primary value operational value primary after connecting to the relay
& observe the reading, in primary values.
Input CT Applied Value (A) CT Ratio Applied (A) Displayed Secondary Value (A) Displayed Primary Value (A)
R 800 800/5 5 800
S 800 800/5 5 800
T 800 800/5 5 800
N 0
To get the value of IN we will inject only one phase by 1A
Input CT Applied Value (A) CT Ratio Applied (A) Displayed Secondary Value(A) Displayed Primary Value(A)
N 1 800/5 1 160
Voltage Inputs Check:
Input PT Applied Value PT Ratio Applied Displayed Secondary Value (V) Displayed Primary Value (KV)
R-S 110 33000/110 110 33K
S-T 110 33000/110 110 33K
R-T 110 33000/110 110 33K
R-N 63.51 33000/110 63.51 19.05K
S-N 63.51 33000/110 63.51 19.05K
T-N 63.51 33000/110 63.51 19.05K
Tested by: masoud karimi Witnessed by:
Signature & Date: Signature & Date:
Protection Relay
FAKOOR SANAT TEHRAN Commissioning Standard Test Formats
Description: 7SJ622 Record No.:
Bay no.: SS121-33KV Drawing ref.: V-1 Sheet: 4 of 6
Contractor: FEEDER NO.: U00 COUPLING Substation No : 121
Active, Reactive and Apparent Power Check:
- Injected 63.51V per phase
- To check the values go to measurement.
- P= √3 * V * I * COS (ӨL) and Q= √3 * V * I * SIN (ӨL)
PHASE Calculated Measured Calculated Measured Calculated Measured
ANGLE (P) MW (P) MW (Q) MVAR (Q) MVAR (S) MVA (S) MVA
AT 0O 45.73 45.73 0 0 45.73 45.73
AT 45O Lag 32.33 32.33 32.33 32.33 45.73 45.73
AT 90O Lag 0 0 45.73 45.73 45.73 45.73
AT 45O Lead 32.33 32.33 -32.33 -32.33 45.73 45.73
AT 90O Lead 0 0 -45.73 -45.73 45.73 45.73
Trip time Trip time Trip time Trip time
PHASE Pickup TMS CURVE
2X Theory 2X Relay 2X Theory 2X Relay
R 3.6 A 0.8 V.I 10.8 sec 10.821 sec 3.6 Sec 3.618 sec
51 S 3.6 A 0.8 V.I 10.8 sec 10.821 sec 3.6 Sec 3.618 sec
T 3.6 A 0.8 V.I 10.8 sec 10.821 sec 3.6 Sec 3.618 sec
1.05X
PHASE Pickup TMS CURVE Injected A 1.05X Relay
Theory
R 25 A 0.25 D.T 26.25 A 0.25 sec 0.262 sec
50-1 S 25 A 0.25 D.T 26.25 A 0.25 sec 0.262 sec
T 25 A 0.25 D.T 26.25 A 0.25 sec 0.262 sec
1.05X
PHASE Pickup TMS CURVE Injected A 1.05X Relay
Theory
R 50 A 0.02 D.T 52.5 A 0.02 sec 0.033 sec
50-2 S 50 A 0.02 D.T 52.5 A 0.02 sec 0.033 sec
T 50 A 0.02 D.T 52.5 A 0.02 sec 0.033 sec
1.05X
PHASE Pickup TMS CURVE Injected A 1.05X Relay
Theory
50N-2 N 0.5 A 0.3 D.T 0.525 0.3 sec 0.314 sec
Tested by: masoud karimi Witnessed by:
Signature & Date: Signature & Date:
Protection Relay
FAKOOR SANAT TEHRAN Commissioning Standard Test Formats
Description: 7SJ622 Record No.:
Bay no.: SS121-33KV Drawing ref.: V-1 Sheet: 5 of 6
Contractor: FEEDER NO.: U00 COUPLING Substation No : 121
Binery Input Check:
This is to verify the healthiness of the DC control inputs.
Apply a rated voltage at each input and verify the status of the input through DIGSI in the online
operating mode
Control input No. Terminal Configuration Result
BI 1 F14 VCB CLOSE OK
BI 2 F15 TEST POSITION OK
BI 3 F17 TCS OK
BI 4 R9 FEEDER READY OK
BI 5 R10 EARTH SWITCH OK
BI 6 R11 SPRING DISCHARGED OK
BI 7 R12 VCB OPEN OK
BI 8 R8 GENERAL TRIP OK
BI9 R2 XXXXXXXX OK
BI10 R6 XXXXXXXX OK
BI11 R7 XXXXXXXX OK
Control Output Relay Check:
This is to verify the healthiness of the Control output relay healthiness.
Operate each output through DIGSI® 4 in the online operating mode, the check continuity of the
contact that closes.
Output Relay No. Terminal Configuration Result
BO 1 F6,F7
BO 2 F8,F9
BO 3 F10,F11 GENERAL TRIP
BO 4 F12,F13 74 TCS
BO 5 R1,R3 GENERAL TRIP
BO 7 R4,R5
Tested by: masoud karimi Witnessed by:
Signature & Date: Signature & Date:
Protection Relay
FAKOOR SANAT TEHRAN Commissioning Standard Test Formats
Description: 7SJ622 Record No.:
Bay no.: SS121-33KV Drawing ref.: V-1 Sheet: 6 of 6
Contractor: FEEDER NO.: U00 COUPLING Substation No : 121
LED Status Checked:
LED No. Configuration STATUS CHECKED
1 OVER CURRENT Yes
2 EARTH FAULT Yes
3 UNDER VOLAGE Yes
4 74 TCS Yes
5 SPRING DISCHARGED Yes
6 GENERAL TRIP Yes
7 Yes
Test Instrument Details
Name of The Instrument Type Sl.No.
OMICRON 256-6 256-6 DI540J
Tested by: masoud karimi Witnessed by:
Signature & Date: Signature & Date:
