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Commissioning Service Department
Commissioning Standard Test Formats
Description:
High Imp. Secondary Injection
Location : Protection Panels
Contractor :
Record No. :
Drawing ref.:
Contract no.:
Sheet : 1 of 2
Substation No : S/s
1. GENERAL DATA AND INFORMATION:
Circuit.
Frequency:
Panel No.
Serial no:
Make:
Model no:
60 Hz
2. RELAY SETTING:
DIFF. SETTING(V):
CT Supervision setting(V)
Operating Current(mA):
Shunt Resistor (Ohm)
Stabilizing Resistor(Ohm):
CTS DT (S)
CT Ratio:
BB Prim. Current (A)
3. SERIES RESISTOR MEASUREMENT:
Phase
Setting value (Ω)
Measurement value (Ω)
R-N

R01=
Ω
Y-N

R02=
Ω
B-N

R03=
Ω
4. SHUNT RESISTOR MEASUREMENT:
Tested by:
Signature & Date:
Phase
Setting value (Ω)
R-N

RS1=
Ω
Y-N

RS2=
Ω
B-N

RS3=
Ω
ENG.
Witnessed by:
Signature & Date:
Measurement value (Ω)
ENG.
Commissioning Service Department
Commissioning Standard Test Formats
Description:
High Imp. Secondary Injection
Location : Protection Panels
Contractor :
Drawing ref.:
Contract no.:
Record No. :
Sheet : 2 of 2
Substation No : S/s
5. SECONDARY INJECTION TEST:
5.1.
CT SUPERVISION OPEARION:
Injected
Phase
Voltage (V)
Current(mA)
Main relay
Current(CTS)
mA
Metrosil
Current
mA
SHUNT RESISTOR
CURRENT
mA
Main relay
Current(CTS)
mA
Metrosil
Current
mA
SHUNT RESISTOR
CURRENT
mA
R
Y
B
5.2.
MAIN RELAY OPERATION:
Injected
Phase
Voltage (V)
Current(mA)
R
Y
B
Tested by:
Signature & Date:
ENG.
Witnessed by:
Signature & Date:
ENG.
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