SIEMENS CONSORTIUM EZ-SE-01/2009
SIEMENS AG SIEMENS LIMITED
FEEDING EZDAN AND INTERNATIONAL HOUSING GROUP PROJECT IN WUKAIR AREA
SAT Procedures and Test Forms for Transformer Differential protection relay
Client : KAHRAMAA, QATAR
Location : 66/11kV EZDAN-2 S/S
Feeder No. : B11 Designation : F871 (87T)
Make : SIEMENS Relay Version : V04.62.05
MLFB No. : 7UT6131-5EB92-1AA0-OS Sr. No. : 1004062850
Aux. Volts : 110 V DC Nominal Current : 1 A
1. CT & Transformer Data Setting:
CT rated primary current (Side 1) set as : 400A
CT rated secondary current (Side 1) set as : 1A
Rated primary voltage (Side 1) set as : 62.0kV
CT Star point (Side 1) set as : Towards Transformer
Transformer Winding Connection (Side 1) set as : D (Delta)
Transformer Star point of side-1 is : Isolated
CT rated primary current (Side 2) set as : 2500A
CT rated secondary current (Side 2) set as : 1A
Rated primary voltage (Side 2) set as : 11kV
CT Star point (Side 2) set as : Towards Transformer
Transformer Winding Connection (Side 2) set as : Y (Star)
Transformer Star point of side-2 is : Grounded
Vector Group Numeral (Side 2) set as : 1
Rated Apparent Power (Side 1) set as : 40MVA
Rated current: Side 1, HV = 372.49 / 400 = 0.931
Rated current: Side 2, LV = 2099.52 / 2500 = 0.839
Type of FaultReference Winding
(High Voltage)
Even VG numeral(0,2,4,6,8,10)
Odd VG numeral(1,3,5,7,9,11)
3-Phase 1 1 12-Phase 1 1 √3/2=0.866
1-Phaes with Io Elimination 3/2 = 1.5 3/2 = 1.5 √3=1.731-Phaes without Io 1 1 3/1+√3 = 1.1
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SAT Procedures and Test Forms for Transformer Differential protection relay
Elimination
2. MEASURED VALUE TEST: Inject current in the relay as per the table below. Observe the reading on the relay display in primary and secondary values on side-1 and side-2.
Side on
which Curren
t injecte
d
Phase in which current injected
Current injected(Amps)
Secondary current read on relay display in Amp
Primary current read on relay display in A / kA
IL1
(Amps)
IL2
(Amps)
IL3
(Amps)
3I0
(Amps)
IL1
(Amps)
IL2
(Amps)
IL3
(Amps)
3I0
(Amps)
Side 1 R-E 1.0 1.0 0.0 0.0 1.0 401 0.0 0.0 401
(HV) Y-E 1.0 0.0 1.0 0.0 1.0 0.0 399 0.0 400
B-E 1.0 0.0 0.0 1.0 1.0 0.0 0.0 400 399
R-Y 1.0 1.0 1.0 0.0 0.0 400 400 0.0 0.0
Y-B 1.0 0.0 1.0 1.0 0.0 0.0 400 400 0.0
B-R 1.0 1.0 0.0 1.0 0.0 400 0.0 400 0.0
R-Y-B 1.0 1.0 1.0 1.0 0.0 400 400 399 0.0
Side 2 R-E 1.0 1.0 0.0 0.0 1.0 2.49 0.0 0.0 2.49
(LV) Y-E 1.0 1.0 0.0 0.0 1.0 0.0 2.49 0.0 2.50
B-E 1.0 0.0 0.0 1.0 1.0 0.0 0.0 2.50 2.49
R-Y 1.0 1.0 1.0 0.0 0.0 2.50 2.50 0.0 0.0
Y-B 1.0 0.0 1.0 1.0 0.0 0.0 2.49 2.49 0.0
B-R 1.0 1.0 0.0 1.0 0.0 2.50 0.0 2.49 0.0
R-Y-B 1.0 1.0 1.0 1.0 0.0 2.50 2.50 2.50 0.0
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SIEMENS CONSORTIUM EZ-SE-01/2009
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SAT Procedures and Test Forms for Transformer Differential protection relay
2. DIFFERENTIAL PROTECTION :3a. Setting for 87-1 Pick-Up = 0.20 x I/InO
T I-Diff> Time Delay setting = 0.00 sec
Expected Trip Current (HV, Phase – Neutral) = (87-2 setting) x 1.5Expected Trip Current (HV, Phase – Phase) = (87-2 setting) x 1.0Expected Trip Current (LV, Phase – Neutral) = (87-2 setting) x 1.732Expected Trip Current (LV, Phase – Phase) = (87-2 setting) x 0.866Expected Trip Current (LV Three Phase) = (87-2 setting) x 1.0Expected Pickup Current = 0.85 x Expected Trip CurrentExpected Dropout Current = 0.70 x Expected Trip CurrentIdiff Trip = Idiff>> set X Kvg X I tx rated / I ct primary
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Side on which Current injected
Phase in which current injected
Expected Pickup Current
(mA)
Actual Pickup Current
(mA)
Expected Drop-
out Current
(mA)
Actual Drop-out Current
(mA)
Expected Trip
Current (mA)
Actual Trip
Current(mA)
Actual Trip
Time at 2xItrip
(msec)Side-1 R-E 158 158 130 130 186 185 33.50
(HV) Y-E 158 158 130 130 186 186 32.50
B-E 158 157 130 130 186 186 34.30
R-Y 158 158 130 131 186 186 36.50
Y-B 158 158 130 131 186 186 33.70
B-R 158 157 130 131 186 186 34.90
R-Y-B 158 157 130 131 186 185 37.10
Side-2 R-E 247 245 204 205 290 290 35.50
(LV) Y-E 247 246 204 204 290 290 34.70
B-E 247 246 204 204 290 290 32.50
R-Y 123 124 102 102 145 145 34.70
Y-B 123 123 102 102 145 145 34.70
B-R 123 123 102 102 145 145 34.70
R-Y-B 143 142 118 118 168 167 34.90
SIEMENS CONSORTIUM EZ-SE-01/2009
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FEEDING EZDAN AND INTERNATIONAL HOUSING GROUP PROJECT IN WUKAIR AREA
SAT Procedures and Test Forms for Transformer Differential protection relay
3b. Setting for 87-2 Pick-Up = 1.00 x I/InO T I-Diff>> Time Delay setting = 0.00 sec
Side on which Current injected
Phase in which current injected
Expected Pickup Current
(A)
Actual Pickup Current
(A)
Expected Drop-out Current
(A)
Actual Drop-out Current
(A)
Expected Trip
Current (A)
Actual Trip
Current(A)
Actual Trip Time at 2xItrip (msec)
Side 1 R-E 0.792 0.791 0.652 0.652 2.796 2.80 24.10
(HV) Y-E 0.792 0.792 0.652 0.652 2.796 2.80 22.10
B-E 0.792 0.792 0.652 0.652 2.796 2.80 22.40
R-Y 0.792 0.790 0.652 0.652 1.864 1.87 22.30
Y-B 0.792 0.791 0.652 0.652 1.864 1.87 24.90
B-R 0.792 0.791 0.652 0.652 1.864 1.87 23.50
R-Y-B 0.792 0.791 0.652 0.652 1.864 1.87 23.50
Side 2 R-E 1.235 1.234 1.017 1.010 1.453 1.453 23.40
(LV) Y-E 1.235 1.234 1.017 1.010 1.453 1.452 22.30
B-E 1.235 1.235 1.017 1.010 1.453 1.452 22.20
R-Y 0.618 0.618 0.509 0.509 0.727 0.727 23.70
Y-B 0.618 0.618 0.509 0.509 0.727 0.728 23.50
B-R 0.618 0.618 0.509 0.509 0.727 0.728 22.30
R-Y-B 0.714 0.713 0.588 0.587 0.840 0.839 22.30
Expected Trip Current (HV, Phase – Neutral) = (87-2 setting) x 1.5Expected Trip Current (HV, Phase – Phase) = (87-2 setting) x 1.0Expected Trip Current (LV, Phase – Neutral) = (87-2 setting) x 1.732Expected Trip Current (LV, Phase – Phase) = (87-2 setting) x 0.866Expected Trip Current (LV Three Phase) = (87-2 setting) x 1.0Expected Pickup Current = 0.85 x Expected Trip CurrentExpected Dropout Current = 0.70 x Expected Trip Current
Idiff Trip = Idiff>> set X Kvg X I tx rated / I ct primary
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SIEMENS CONSORTIUM EZ-SE-01/2009
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FEEDING EZDAN AND INTERNATIONAL HOUSING GROUP PROJECT IN WUKAIR AREA
SAT Procedures and Test Forms for Transformer Differential protection relay
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SIEMENS CONSORTIUM EZ-SE-01/2009
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FEEDING EZDAN AND INTERNATIONAL HOUSING GROUP PROJECT IN WUKAIR AREA
SAT Procedures and Test Forms for Transformer Differential protection relay
3c. Settings for Bias Characteristics
Idiff>Set = 0.20I/InO Slope 1 Set = 0.25Base Point 1 Set = 0.00I/In Irest. Calculated Start Point of Slope 1 = 0.0 Idiff. Calculated Start Point of Slope 1 = 0.0
Slope 2 Set = 0.50 Base Point 2 Set = 2.00I/In Irest. Calculated Start Point of Slope 2 = 4.0 Idiff. Calculated Start Point of Slope 2 = 1.0
Idiff>>Set = 6.00I/InO
For test results please find omicron test kit results.
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SIEMENS CONSORTIUM EZ-SE-01/2009
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SAT Procedures and Test Forms for Transformer Differential protection relay
Differential Operating Characteristic:
Test Object - Differential ParametersProtected Object: Protected Object: Transformer Vector Group: DY1
Winding/Leg Name:
Primary Secondary
Voltage: 62.00 kV 11.00 kVPower: 40.00 MVA 40.00 MVAStar point Grounding:
No Yes
Delta-connected CT:
No No
CT:Winding/Leg Name:
Primary Secondary
CT Current Prim: 400.00 A 2500.00 ACT Current Sec: 1.00 A 1.00 ACT Grounding: tow. Prot. Obj. tow. Prot. Obj.Gnd CT Prim Current:
200.00 A 800.00 A
Gnd CT Sec Current:
1.00 A 1.00 A
Gnd CT Grounding:
n/a n/a
Protection device: Reference
Winding: Primary
Ibias Calculation: ( |Ip| + |Is| ) / K1 (K1 = 1.00)
Zero Seq. Elimination:
IL-I0
Reference Current:
PO nominal current
Ground CT Used:No Disable Comb.
char.:No
tdiff>: 0.03 s
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Doc.No. EZD-01-10-36-P014 Rev 0 Annex-1 Page 7 of 34
SIEMENS CONSORTIUM EZ-SE-01/2009
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SAT Procedures and Test Forms for Transformer Differential protection relay
Idiff>: 0.20 In tdiff>>: 0.03 s Idiff>>: 2.00 In ttol rel: 3.00 % Itol rel: 2.00 % ttol abs: 0.01 s Itol abs: 0.05 In
Test Module Name: OMICRON Diff Operating
CharacteristicVersion: 2.40
Test Start: 05-Dec-2010 15:03:55 Test End: 05-Dec-2010 15:05:35 User Name: Manager: Company:
Test Settings:.General Settings: Testing: Primary / Secondary Max. Test Time: 1.50 s Delay Time: 0.25 s Prefault: No Prefault current: 0.00 In Prefault time: 0.000 s Vout enabled: No Vout winding: Secondary GPS/IRIG-B enabled: No GPS/IRIG-B side: Primary
Test Results for Fault Location L1-E at Reference Side Primary
Ibias Idiff Nominal
Idiff Actual
Dev (rel) Dev (abs)
State Result
1.00 In 0.250 In 0.254 In 1.59 % 0.0040 In Tested Passed 2.00 In 0.500 In 0.496 In -0.84 % -0.0042
InTested Passed
3.00 In 0.750 In 0.754 In 0.59 % 0.0045 In Tested Passed 4.00 In 1.000 In 0.995 In -0.46 % -0.0046
InTested Passed
5.00 In 1.250 In 1.255 In 0.39 % 0.0049 In Tested Passed 6.00 In 1.500 In 1.503 In 0.17 % 0.0026 In Tested Passed 7.00 In 1.750 In 1.747 In -0.15 % -0.0027
InTested Passed
8.00 In 2.000 In 1.975 In -1.26 % -0.0251 In
Tested Passed
9.00 In 2.000 In 1.997 In -0.16 % -0.0031 In
Tested Passed
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Doc.No. EZD-01-10-36-P014 Rev 0 Annex-1 Page 8 of 34
SIEMENS CONSORTIUM EZ-SE-01/2009
SIEMENS AG SIEMENS LIMITED
FEEDING EZDAN AND INTERNATIONAL HOUSING GROUP PROJECT IN WUKAIR AREA
SAT Procedures and Test Forms for Transformer Differential protection relay
Operating Characteristic DiagramIbias [In]1 2 3 4 5 6 7 8 9Idiff [In]0.000.250.500.751.001.251.501.752.00
Test Results for Fault Location L2-E at Reference Side Primary
Ibias Idiff Nominal
Idiff Actual
Dev (rel) Dev (abs)
State Result
1.00 In 0.250 In 0.254 In 1.59 % 0.0040 In Tested Passed 2.00 In 0.500 In 0.496 In -0.84 % -0.0042
InTested Passed
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Doc.No. EZD-01-10-36-P014 Rev 0 Annex-1 Page 9 of 34
SIEMENS CONSORTIUM EZ-SE-01/2009
SIEMENS AG SIEMENS LIMITED
FEEDING EZDAN AND INTERNATIONAL HOUSING GROUP PROJECT IN WUKAIR AREA
SAT Procedures and Test Forms for Transformer Differential protection relay
3.00 In 0.750 In 0.746 In -0.59 % -0.0044 In
Tested Passed
4.00 In 1.000 In 0.986 In -1.39 % -0.0139 In
Tested Passed
5.00 In 1.250 In 1.255 In 0.39 % 0.0049 In Tested Passed 6.00 In 1.500 In 1.492 In -0.51 % -0.0077
InTested Passed
7.00 In 1.750 In 1.753 In 0.15 % 0.0027 In Tested Passed 8.00 In 2.000 In 1.992 In -0.42 % -0.0084
InTested Passed
9.00 In 2.000 In 1.991 In -0.47 % -0.0094 In
Tested Passed
Operating Characteristic DiagramIbias [In]1 2 3 4 5 6 7 8 9Idiff [In]0.000.250.500.751.001.251.501.752.00 SIEMENS ENERGOPROJEKT KAHRAMAA.Signature Signature Signature
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Doc.No. EZD-01-10-36-P014 Rev 0 Annex-1 Page 10 of 34
SIEMENS CONSORTIUM EZ-SE-01/2009
SIEMENS AG SIEMENS LIMITED
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SAT Procedures and Test Forms for Transformer Differential protection relay
Test Results for Fault Location L3-E at Reference Side Primary
Ibias Idiff Nominal
Idiff Actual
Dev (rel) Dev (abs)
State Result
1.00 In 0.250 In 0.246 In -1.58 % -0.0039 In
Tested Passed
2.00 In 0.500 In 0.496 In -0.84 % -0.0042 In
Tested Passed
3.00 In 0.750 In 0.754 In 0.59 % 0.0045 In Tested Passed 4.00 In 1.000 In 0.995 In -0.46 % -0.0046
InTested Passed
5.00 In 1.250 In 1.245 In -0.39 % -0.0049 In
Tested Passed
6.00 In 1.500 In 1.503 In 0.17 % 0.0026 In Tested Passed 7.00 In 1.750 In 1.747 In -0.15 % -0.0027
InTested Passed
8.00 In 2.000 In 1.997 In -0.14 % -0.0028 In
Tested Passed
9.00 In 2.000 In 1.997 In -0.16 % -0.0031 In
Tested Passed
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Date 11.04.2011 Date 11.04.2011 Date
Doc.No. EZD-01-10-36-P014 Rev 0 Annex-1 Page 11 of 34
SIEMENS CONSORTIUM EZ-SE-01/2009
SIEMENS AG SIEMENS LIMITED
FEEDING EZDAN AND INTERNATIONAL HOUSING GROUP PROJECT IN WUKAIR AREA
SAT Procedures and Test Forms for Transformer Differential protection relay
Operating Characteristic DiagramIbias [In]1 2 3 4 5 6 7 8 9Idiff [In]0.000.250.500.751.001.251.501.752.00
Test Results for Fault Location L1-L2 at Reference Side Primary
Ibias Idiff Nominal
Idiff Actual
Dev (rel) Dev (abs)
State Result
1.00 In 0.250 In 0.254 In 1.58 % 0.0040 In Tested Passed 2.00 In 0.500 In 0.496 In -0.82 % -0.0041
InTested Passed
3.00 In 0.750 In 0.746 In -0.57 % -0.0043 In
Tested Passed
4.00 In 1.000 In 1.005 In 0.45 % 0.0045 In Tested Passed 5.00 In 1.250 In 1.245 In -0.37 % -0.0047
InTested Passed
6.00 In 1.500 In 1.760 In 0.60 % 0.0104 In Tested Passed 7.00 In 1.750 In 1.991 In -0.47 % -0.0094
InTested Passed
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Doc.No. EZD-01-10-36-P014 Rev 0 Annex-1 Page 12 of 34
SIEMENS CONSORTIUM EZ-SE-01/2009
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SAT Procedures and Test Forms for Transformer Differential protection relay
8.00 In 2.000 In 1.991 In -0.47 % -0.0094 In
Tested Passed
9.00 In 2.000 In 1.991 In -0.47 % -0.0094 In
Tested Passed
Operating Characteristic DiagramIbias [In]1 2 3 4 5 6 7 8 9Idiff [In]0.000.250.500.751.001.251.501.752.00
Test Results for Fault Location L2-L3 at Reference Side Primary
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Doc.No. EZD-01-10-36-P014 Rev 0 Annex-1 Page 13 of 34
SIEMENS CONSORTIUM EZ-SE-01/2009
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SAT Procedures and Test Forms for Transformer Differential protection relay
Ibias Idiff Nominal
Idiff Actual
Dev (rel) Dev (abs)
State Result
1.00 In 0.250 In 0.254 In 1.58 % 0.0040 In Tested Passed 2.00 In 0.500 In 0.496 In -0.82 % -0.0041
InTested Passed
3.00 In 0.750 In 0.754 In 0.58 % 0.0043 In Tested Passed 4.00 In 1.000 In 0.996 In -0.45 % -0.0045
InTested Passed
5.00 In 1.250 In 1.259 In 0.76 % 0.0095 In Tested Passed 6.00 In 1.500 In 1.740 In -0.58 % -0.0102
InTested Passed
7.00 In 1.750 In 1.991 In -0.47 % -0.0094 In
Tested Passed
8.00 In 2.000 In 1.991 In -0.47 % -0.0094 In
Tested Passed
9.00 In 2.000 In 1.991 In -0.47 % -0.0094 In
Tested Passed
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Doc.No. EZD-01-10-36-P014 Rev 0 Annex-1 Page 14 of 34
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SAT Procedures and Test Forms for Transformer Differential protection relay
Operating Characteristic DiagramIbias [In]1 2 3 4 5 6 7 8 9Idiff [In]0.000.250.500.751.001.251.501.752.00
Test Results for Fault Location L3-L1 at Reference Side Primary
Ibias Idiff Nominal
Idiff Actual
Dev (rel) Dev (abs)
State Result
1.00 In 0.250 In 0.246 In -1.57 % -0.0039 In
Tested Passed
2.00 In 0.500 In 0.504 In 0.83 % 0.0041 In Tested Passed 3.00 In 0.750 In 0.746 In -0.57 % -0.0043
InTested Passed
4.00 In 1.000 In 0.996 In -0.45 % -0.0045 In
Tested Passed
5.00 In 1.250 In 1.245 In -0.37 % -0.0047 In
Tested Passed
6.00 In 1.500 In 1.767 In 0.99 % 0.0174 In Tested Passed 7.00 In 1.750 In 1.997 In -0.16 % -0.0031 Tested Passed
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SAT Procedures and Test Forms for Transformer Differential protection relay
In8.00 In 2.000 In 1.997 In -0.16 % -0.0031
InTested Passed
9.00 In 2.000 In 1.997 In -0.16 % -0.0031 In
Tested Passed
Operating Characteristic DiagramIbias [In]1 2 3 4 5 6 7 8 9Idiff [In]0.000.250.500.751.001.251.501.752.00
Test Results for Fault Location L1-L2-L3 at Reference Side Primary
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SAT Procedures and Test Forms for Transformer Differential protection relay
Ibias Idiff Nominal
Idiff Actual
Dev (rel) Dev (abs)
State Result
1.00 In 0.250 In 0.246 In -1.57 % -0.0039 In
Tested Passed
2.00 In 0.500 In 0.496 In -0.82 % -0.0041 In
Tested Passed
3.00 In 0.750 In 0.746 In -0.57 % -0.0043 In
Tested Passed
4.00 In 1.000 In 0.996 In -0.45 % -0.0045 In
Tested Passed
5.00 In 1.250 In 1.236 In -1.12 % -0.0140 In
Tested Passed
6.00 In 1.500 In 1.719 In -1.75 % -0.0306 In
Tested Passed
7.00 In 1.750 In 1.991 In -0.47 % -0.0094 In
Tested Passed
8.00 In 2.000 In 1.997 In -0.16 % -0.0031 In
Tested Passed
9.00 In 2.000 In 1.997 In -0.16 % -0.0031 In
Tested Passed
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SAT Procedures and Test Forms for Transformer Differential protection relay
Operating Characteristic DiagramIbias [In]1 2 3 4 5 6 7 8 9Idiff [In]0.000.250.500.751.001.251.501.752.00
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SAT Procedures and Test Forms for Transformer Differential protection relay
3d. HARMONIC RESTRAINT:
Setting of 87-2nd Harmonic Content in I-DIFF = 10 %Setting of 87-nth Harmonic Restraint = 5.HarmonicSetting of 87-nth Harmonic Content in I-DIFF = 30 %
Inject current greater than 87-1 setting; first with harmonic content less than setting, then with harmonic content greater than setting; verify 87-1 operation / blocking
2nd Harmonic Restraint:
Side on which Current injected
Phase in which current injected
Current injected(Amps)
2nd
Harmonic Content
(%)
TRIP / BLOCK
2nd
Harmonic Content
(%)
TRIP / BLOCK
Side 1 R-E 1.0 9.0 Trip 11.0 Block(HV) Y-E 1.0 9.0 Trip 11.0 Block
B-E 1.0 9.0 Trip 11.0 BlockR-Y-B 1.0 9.0 Trip 11.0 Block
5th Harmonic Restraint:
Side on which Current injected
Phase in which current injected
Current injected(Amps)
nth (5th) Harmonic Content
(%)
TRIP / BLOCK
nth (5th) Harmonic Content
(%)
TRIP / BLOCK
Side 1 R-E 1.0 29.0 Trip 31.0 Block(HV) Y-E 1.0 29.0 Trip 31.0 Block
B-E 1.0 29.0 Trip 31.0 BlockR-Y-B 1.0 29.0 Trip 31.0 Block
Differential Harmonics Restraint Test:
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SAT Procedures and Test Forms for Transformer Differential protection relay
Test Object - Differential Parameters
Protected Object: Protected Object: Transformer Vector Group: DY1
Winding/Leg Name:
Primary Secondary
Voltage: 62.00 kV 11.00 kVPower: 40.00 MVA 40.00 MVAStarpoint Grounding:
No Yes
Delta-connected CT:
No No
CT:Winding/Leg Name:
Primary Secondary
CT Current Prim: 400.00 A 2500.00 ACT Current Sec: 1.00 A 1.00 ACT Grounding: tow. Prot. Obj. tow. Prot. Obj.Gnd CT Prim Current:
200.00 A 800.00 A
Gnd CT Sec Current:
1.00 A 1.00 A
Gnd CT Grounding:
n/a n/a
Protection device: Reference
Winding: Primary
Ibias Calculation: ( |Ip| + |Is| ) / K1 (K1 = 1.00)
Zero Seq. Elimination:
IL-I0
Reference Current:
PO nominal current
Ground CT Used:No Disable Comb.
char.:No
tdiff>: 0.03 s Idiff>: 0.20 In tdiff>>: 0.03 s Idiff>>: 2.00 In
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SAT Procedures and Test Forms for Transformer Differential protection relay
ttol rel: 3.00 % Itol rel: 2.00 % ttol abs: 0.01 s Itol abs: 0.05 In
Harmonic Settings: HR tol abs: 1.00 % HR tol rel: 3.00 %
Harmonic Order
Start point End point
Ixf/IdiffIdiff/In Ixf/IdiffIdiff/In5 30.00
%0.20 30.00
%2.00
2 10.00 %
0.20 10.00 %
2.00
Test Module Name: OMICRON Diff Harmonic
RestraintVersion: 2.40
Test Start: 05-Dec-2010 15:26:18 Test End: 05-Dec-2010 15:26:30 User Name: Manager: Company:
Test Settings: Testing: Primary Tested Harmonic: 2 Max. Test Time: 1.50 s Delay Time: 0.25 s Active Postfault: No Postfault Time: 0.04 s Vout enabled: No Vout winding: Primary
Test Results for Test phase L1-E at Reference Side Primary for 2. Harmonic
Idiff Ixf/Idiff Angle (Ixf,Idiff)
Trip State Result
1.00 I/In 9.00 % -120.0 ° Yes Tested Passed1.00 I/In 10.00 % -120.0 ° No Tested Passed1.00 I/In 11.00 % -120.0 ° No Tested Passed
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Doc.No. EZD-01-10-36-P014 Rev 0 Annex-1 Page 21 of 34
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SAT Procedures and Test Forms for Transformer Differential protection relay
Harmonic Restraint Test PlaneI2f/Idiff [%]1 2 3 4 5 6 7 8 9 10 11Idiff/In [In]0.000.250.500.751.001.251.501.752.00
Test Results for Test phase L2-E at Reference Side Primary for 2. Harmonic
Idiff Ixf/Idiff Angle (Ixf,Idiff)
Trip State Result
1.00 I/In 9.00 % -120.0 ° Yes Tested Passed1.00 I/In 10.00 % -120.0 ° No Tested Passed1.00 I/In 11.00 % -120.0 ° No Tested Passed
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SIEMENS CONSORTIUM EZ-SE-01/2009
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SAT Procedures and Test Forms for Transformer Differential protection relay
Harmonic Restraint Test PlaneI2f/Idiff [%]1 2 3 4 5 6 7 8 9 10 11Idiff/In [In]0.000.250.500.751.001.251.501.752.00
Test Results for Test phase L3-E at Reference Side Primary for 2. Harmonic
Idiff Ixf/Idiff Angle (Ixf,Idiff)
Trip State Result
1.00 I/In 9.00 % -120.0 ° Yes Tested Passed1.00 I/In 10.00 % -120.0 ° No Tested Passed
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SAT Procedures and Test Forms for Transformer Differential protection relay
1.00 I/In 11.00 % -120.0 ° No Tested Passed
Harmonic Restraint Test PlaneI2f/Idiff [%]1 2 3 4 5 6 7 8 9 10 11Idiff/In [In]0.000.250.500.751.001.251.501.752.00
Test Results for Test phase L1-L2-L3 at Reference Side Primary for 2. Harmonic
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SAT Procedures and Test Forms for Transformer Differential protection relay
Idiff Ixf/Idiff Angle (Ixf,Idiff)
Trip State Result
1.00 I/In 9.00 % -120.0 ° Yes Tested Passed1.00 I/In 10.00 % -120.0 ° No Tested Passed1.00 I/In 11.00 % -120.0 ° No Tested Passed
Harmonic Restraint Test PlaneI2f/Idiff [%]1 2 3 4 5 6 7 8 9 10 11Idiff/In [In]0.000.250.500.751.001.251.501.752.00
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SAT Procedures and Test Forms for Transformer Differential protection relay
Test Results for Test phase L1-E at Reference Side Primary for 5. Harmonic
Idiff Ixf/Idiff Angle (Ixf,Idiff)
Trip State Result
1.00 I/In 29.00 % -120.0 ° Yes Tested Passed1.00 I/In 30.00 % -120.0 ° No Tested Passed1.00 I/In 31.00 % -120.0 ° No Tested Passed
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SAT Procedures and Test Forms for Transformer Differential protection relay
Harmonic Restraint Test PlaneI5f/Idiff [%]5 10 15 20 25 30 35Idiff/In [In]0.000.250.500.751.001.251.501.752.00
Test Results for Test phase L2-E at Reference Side Primary for 5. Harmonic
Idiff Ixf/Idiff Angle (Ixf,Idiff)
Trip State Result
1.00 I/In 29.00 % -120.0 ° Yes Tested Passed1.00 I/In 30.00 % -120.0 ° Yes Tested Passed1.00 I/In 31.00 % -120.0 ° No Tested Passed
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Doc.No. EZD-01-10-36-P014 Rev 0 Annex-1 Page 27 of 34
SIEMENS CONSORTIUM EZ-SE-01/2009
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SAT Procedures and Test Forms for Transformer Differential protection relay
Harmonic Restraint Test PlaneI5f/Idiff [%]5 10 15 20 25 30 35Idiff/In [In]0.000.250.500.751.001.251.501.752.00
Test Results for Test phase L3-E at Reference Side Primary for 5. Harmonic
Idiff Ixf/Idiff Angle (Ixf,Idiff)
Trip State Result
1.00 I/In 29.00 % -120.0 ° Yes Tested Passed1.00 I/In 30.00 % -120.0 ° Yes Tested Passed1.00 I/In 31.00 % -120.0 ° No Tested Passed
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SAT Procedures and Test Forms for Transformer Differential protection relay
Harmonic Restraint Test PlaneI5f/Idiff [%]5 10 15 20 25 30 35Idiff/In [In]0.000.250.500.751.001.251.501.752.00
Test Results for Test phase L1-L2-L3 at Reference Side Primary for 5. Harmonic
Idiff Ixf/Idiff Angle (Ixf,Idiff)
Trip State Result
1.00 I/In 29.00 % -120.0 ° Yes Tested Passed
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SAT Procedures and Test Forms for Transformer Differential protection relay
1.00 I/In 30.00 % -120.0 ° Yes Tested Passed1.00 I/In 31.00 % -120.0 ° No Tested Passed
Harmonic Restraint Test PlaneI5f/Idiff [%]5 10 15 20 25 30 35Idiff/In [In]0.000.250.500.751.001.251.501.752.00
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4. OVERCURRENT PROTECTION (HV Side-1):
Definite Time:50-1 Pickup Setting : 1.50 x I/InS (I/InS = Rated current of the transformer) 50-1 Delay Setting : 0.50 sec 50-2 Pickup Setting : 2.00 x I/InS 50-2 Delay Setting (s) : 0.00 sec
Phase 50-1Actual Pickup current
(A)
50-1 ActualDrop Out current
(A)
50-1 Actual Trip Time @ 2 x setting
(msec)
50-2 Actual Pickup current
(A)
50-2 Actual Drop out current
(A)
50-2 Actual Trip Time @ 2x setting
(msec)
R 1.396 1.337 543.6 1.860 1.789 24.20
Y 1.395 1.335 538.9 1.859 1.785 28.00
B 1.396 1.336 533.7 1.860 1.799 23.60
Inverse Time:IEC Curve : Very Inverse51 Pickup Setting 1.00 x I/InS 51 Time Dial Setting : 0.60 sec
Phase Actual Pickup current
Actual Drop out current
(A)
Operating Time (s) @ 2 x Setting
Operating Time (s) @ 5 x Setting
Operating Time(s) @ 10 x Setting
(A) Calculated Measured Calculated Measured Calculated Measured
R
Y
B
5. BINARY INPUTS : Assignments
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BI 1 : Spare Tested : Ok
BI 2 : Diff Relay Test Block in Test Mode Tested : Ok
BI 3 : Spare Tested : Ok
BI 4 : Spare Tested : Ok
BI 5 : Protection BI DC Supply Fail Tested : Ok
6. BINARY OUTPUTS :- Assignments
BO 1 : 87 Trip / 50-1 Trip Tested : 0.2Ω
BO 2 : Spare Tested : 0.2Ω
BO 3 : Spare Tested : 0.3Ω
BO 4 : 87 Trip / 50-1 Trip Tested : 0.2Ω
BO 5 : 87 Trip / 50-1 Trip Tested : 0.2Ω
BO 6 : Spare Tested : 0.2Ω
BO 7 : 87 Trip / 50-1 Trip Tested : 0.2Ω
BO 8 : 87 Trip / 50-1 Trip Tested : 0.2Ω
Life contact Tested : 0.2Ω
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SAT Procedures and Test Forms for Transformer Differential protection relay
7. LED INDICATORS:- Assignments
LED 1 : Differential Trip stage-1 Tested : Ok
LED 2 : Differential Trip stage-2 Tested : Ok
LED 3 : Differential Phase L1 Trip Tested : Ok
LED 4 : Differential Phase L2 Trip Tested : Ok
LED 5 : Differential Phase L3 Trip Tested : Ok
LED 6 : Differential Pickup Tested : Ok
LED 7 : TX O/C trip Tested : Ok
LED 8 : Overload Alarm Tested : Ok
LED 9 : Spare Tested : Ok
LED 10 : Spare Tested : Ok
LED 11 : Spare Tested : Ok
LED 12 : Spare Tested : Ok
LED 13: Spare Tested : Ok
LED 14 : Spare Tested : Ok
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SAT Procedures and Test Forms for Transformer Differential protection relay
8. Tripping of CB / Lockout Relay (K86A) on Diff. Trip : __Ok___
9. Tripping of CB / Lockout Relay (K86A) on over current Trip : __Ok___
10. Final Settings downloaded to relay after test : __Ok___
11. Test Switch TS871 operation checked (Block K86A) : __Ok___
Relay found healthy: Yes / No
12. Instruments Used:
Sl No Description MakeEquipment
Sl No.Calibration date
Calibration due date
1. Secondary Injection Kit
OMICRON GK016P 27/06/2010 27/06/2011
2. Multimeter FLUKE 179 13150185 23/08/2010 23/08/2011
3. Laptop HP SGH016T1GP --- ---
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