Relay Test Report
11/20/2021
PAGE 1
Nameplate Data
MANUFACTURER: Alstom
ASSET ID: B2+RP10
SUBSTATION 500kV New Lahore (South)
LZOP:
PROTECTION: Differential Prot. Set II
MODEL: P642
SERIAL NUMBER:
PT RATIO:
kV :
TEST STATUS: Pass
DATASHEET:
Counter Clockwise Rotation 0-360 Lead
JOB #: PTW # 919
RELAY FIRMWARE:
V
A
Differential Settings
Pickup
Trip Time
Prefault Level
Prefault Time
Off Delay
Through Fault Current
2nd Harmonic Content
Fault Duration
ICT Correction
0.2
20
50
800
0
100
15
500
525
1,500
pu
ms
%
ms
ms
% Ib
%
ms
NO
Current Tolerance
12
Trip Time Tolerance
10
Simulate Breaker NO
Use Reference Voltage NO
+50
Slope Through Origin
Ibias Equation
Unrestrained Pickup
10
pu
Slope
Ibias(pu)
Gradient (%)
1
0.667
30
2
2
60
ms
Harmonic Tolerance
15
%
Harmonic Ramp Mode Ramp To Operate
Nth Harmonic Content
35
% 5th
Nominal Current Protected Object
kV
750
*A vertical offset is created between slopes
when two equivalent restraint values are entered.
The Gradient % of the first equivalent point will be
the value of the vertical offset in per unit.
231
MVA
:1 A
kV
2,400
824.786 A
:1 A
1,874.51 A
YY0
0.55 A
Single Phase
Pickup Factor
Sat Nov 20 14:52:18 2021
%
%
0.781 A
Interposing CTs
1.50
1.50
Single Phase
Pickup Factor
Stabilization Test
Phase
A-N
B-N
C-A
Injected Currents
W1
Currents Observed From Relay
W2
W1
I (A)
ϕ (°)
I (A)
ϕ (°)
0.550
0
0.781
180
824.78
0
1,874.5
180
0.550
240
0.781
60
824.78
240
1,874.5
60
0.550
120
0.781
300
824.78
120
1,874.5
300
W2
ϕ (°)
Idiff
I (A)
ϕ (°)
Ibias
I (A)
827.10
0
1,889.0
179.9
1.006
0.00563
826.60
240.2
1,887.0
59.79
1.002
0.00229
826.30
120.1
1,883.0
300.05
1.005
0.0074
Timing Test
TEST EQUIPMENT USED: FREJA546 (SN201906070004)
COPYRIGHT © 2002-2021 POWERDB, INC.
Sat Nov 20 15:02:13 2021
TESTED BY:
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Form Schema 0, REVISED 1/29/2019
Relay Test Report
11/20/2021
PAGE 2
Phase
Tested
Fault Current
(% Ib)
Expected
Trip Time (s)
Maximum
Trip Time (s)
Measured
Trip Time (s)
P/F
A-N
100.0
0.020
0.072
0.027
P
B-N
100.0
0.020
0.072
0.030
P
C-N
100.0
0.020
0.072
0.030
P
ABC
100.0
0.020
0.072
0.030
P
Pickup Test
Sat Nov 20 15:03:29 2021
Winding 1
Phase
Winding 2
Pickup
Setting
(pu)
Pickup
(pu)
Pickup
(A)
Error
(%)
P/F
Pickup
Setting
(pu)
Pickup
(pu)
Pickup
(A)
Error
(%)
P/F
A-N
0.20
0.200
0.165
0.0
P
0.20
0.192
0.225
-4.0
P
B-N
0.20
0.198
0.163
-1.0
P
0.20
0.192
0.225
-4.0
P
C-N
0.20
0.198
0.163
-1.0
P
0.20
0.194
0.227
-3.0
P
ABC
0.20
0.196
0.108
-2.0
P
0.20
0.194
0.152
-3.0
P
#
Ibias
(pu)
Idiff
(pu)
W1
(A)
W2
(A)
Error
(%)
P/F
1
0.40
0.20
0.27
0.23
0.0
P
2
1.10
0.33
0.69
0.73
-1.0
P
3
1.40
0.42
0.89
0.93
0.0
P
4
3.40
1.44
2.27
2.09
0.0
P
5
5.90
2.94
4.05
3.46
0.0
P
COPYRIGHT © 2002-2021 POWERDB, INC.
Characteristic Test
Sat Nov 20 16:33:24 2021
2nd Harmonic Block Test
Sat Nov 20 16:48:42 2021
www.powerdb.com
Form Schema 0, REVISED 1/29/2019
Relay Test Report
11/20/2021
PAGE 3
Winding 1
Winding 2
Phase
Pickup = 0.150A , Tolerance = 15%
Funda2nd
2nd
P/F
Error
mental Harmonic Harmonic
(%)
I (A)
I (A)
I (%)
Pickup = 0.150A , Tolerance = 15%
Funda2nd
2nd
P/F
Error
mental Harmonic Harmonic
(%)
I (A)
I (A)
I (%)
A-N
1.00
0.146
14.650
-2.3
P
1.00
0.147
14.750
-1.7
P
B-N
1.00
0.145
14.550
-3.0
P
1.00
0.148
14.850
-1.0
P
C-N
1.00
0.145
14.550
-3.0
P
1.00
0.149
14.950
-0.3
P
ABC
1.00
0.144
14.450
-3.7
P
1.00
0.145
14.550
-3.0
P
Nth Harmonic Shot Test
Winding 1
Winding 2
Phase
Fundamental Current = 1.000A
5th
5th
Harmonic Harmonic Operate
I (A)
I (%)
Fundamental Current = 1.000A
5th
5th
No
Harmonic Harmonic
Operate
I (A)
I (%)
5th
5th
Harmonic Harmonic Operate
I (A)
I (%)
5th
5th
No
Harmonic Harmonic Operate
I (A)
I (%)
A-N
0.300
30.00
P
0.400
40.00
P
0.300
30.00
P
0.400
40.00
P
B-N
0.300
30.00
P
0.400
40.00
P
0.300
30.00
P
0.400
40.00
P
C-N
0.300
30.00
P
0.400
40.00
P
0.300
30.00
P
0.400
40.00
P
ABC
0.300
30.00
P
0.400
40.00
P
0.300
30.00
P
0.400
40.00
P
Harmonic Content for No Operation:
40
%
Harmonic Content for Operation:
Characteristic Shot Test
#
Ibias
(pu)
Idiff
(pu)
W1
(A)
W2
(A)
P/F
1
1.30
0.30
0.80
0.90
P
...
2
1.20
0.60
0.82
0.70
P
...
3
1.80
0.50
1.13
1.21
P
...
4
1.70
0.70
1.13
1.05
P
...
5
2.70
0.90
1.73
1.76
P
...
6
2.60
1.20
1.76
1.56
P
...
7
3.50
1.40
2.31
2.19
P
...
8
3.30
1.70
2.28
1.91
P
...
9
4.50
2.00
3.02
2.73
P
...
10
4.20
2.30
2.94
2.38
P
...
COPYRIGHT © 2002-2021 POWERDB, INC.
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30
%
Sat Nov 20 16:37:04 2021
Form Schema 0, REVISED 1/29/2019