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Ct test report
- 1. UNIT – 1
LAVT
CT – 2
Name Plate Details:
Core 1: 2500/5 A Burden: - CL: PS ISF / ALF : -
Core 2: 2500/5 A Burden: - CL: PS ISF / ALF : -
For Core 1: Vk: 400V; Max. RS: 2.0Ω ; Iex<30 mA at Vk/2
For Core 2: Vk: 400V; Max. RS: 2.0Ω ; Iex<30 mA at Vk/2
Freq:50Hz; Ins.Level :12/36/95 kV; STC: 40 kA for1 sec.; Ins.Cl: B
ConfirmedTo:IS2705/1992
Knee Point Voltage Test:
R – PH:
CT SL. NO.: CT12109179
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 9.0 9.0
40 12.9 12.8
60 15.6 15.5
80 18.3 17.6
100 20.8 20.7
120
140
160
180
200
220
- 2. Y – PH:
CT SL. NO.: CT12109176
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 8.9 7.8
40 13.0 11.2
60 15.3 13.5
80 18.2 16.1
100 20.1 18.0
120
140
160
180
200
220
B – PH:
CT SL. NO.: CT12109175
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 8.5 8.9
40 11.8 12.7
60 14.3 15.1
80 19.0 18.2
100 20.0 20.4
120
140
160
180
200
220
- 3. CT – 3
Name Plate Details:
Core 1: 2500/5 A Burden: - CL: PS ISF / ALF : -
Core 2: 2500/5 A Burden: - CL: PS ISF / ALF : -
For Core 1: Vk: 400V; Max. RS: 2.0Ω ; Iex<30 mA at Vk/2
For Core 2: Vk: 400V; Max. RS: 2.0Ω ; Iex<30 mA at Vk/2
Freq:50Hz; Ins.Level :12/36/95 kV; STC: 40 kA for1 sec.; Ins.Cl: B
ConfirmedTo:IS2705/1992
Knee Point Voltage Test:
R – PH:
CT SL. NO.: CT12109169
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 6.5 8.5
40 10.6 13.0
60 13.5 16.4
80 15.7 19.7
100 17.7 23.1
120
140
160
180
200
220
- 4. Y – PH:
CT SL. NO.: CT12109171
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 10.1 8.2
40 13.6 12.9
60 16.7 15.2
80 20.0 18.2
100 22.6 22.9
120
140
160
180
200
220
B – PH:
CT SL. NO.: CT12109174
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 9.6 10.9
40 13.5 15.3
60 17.1 18.5
80 21.0 22.1
100 24.9 24.2
120
140
160
180
200
220
- 5. UNIT – 1 NGT
CT – 1
Name Plate Details:
Core 1: 2500/5 A Burden: - CL: PS ISF / ALF : -
Core 2: 2500/5 A Burden: - CL: PS ISF / ALF : -
For Core 1: Vk: 400V; Max. RS: 2.0Ω ; Iex<30 mA at Vk/2
For Core 2: Vk: 400V; Max. RS: 2.0Ω ; Iex<30 mA at Vk/2
Freq:50Hz; Ins.Level :12/36/95 kV; STC: 40 kA for1 sec.; Ins.Cl: B
ConfirmedTo:IS2705/1992
Knee Point Voltage Test:
R – PH:
CT SL. NO.: CT12109185
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 6.2 10.2
40 9.8 14.5
60 12.9 17.4
80 15.5 20.4
100 18.2 23.6
120
140
160
180
200
220
- 6. Y – PH:
CT SL. NO.: CT12109186
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 6.7 11.4
40 10.5 15.1
60 14.2 17.1
80 17.6 18.5
100 21.2 20.7
120
140
160
180
200
220
B – PH:
CT SL. NO.: CT12109184
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 8.5 9.5
40 11.6 13.2
60 13.3 15.1
80 15.0 17.0
100 16.6 18.3
120
140
160
180
200
220
- 7. CT – 2
Name Plate Details:
Core 1: 2500/5 A Burden: - CL: PS ISF / ALF : -
Core 2: 2500/5 A Burden: - CL: PS ISF / ALF : -
For Core 1: Vk: 400V; Max. RS: 2.0Ω ; Iex<30 mA at Vk/2
For Core 2: Vk: 400V; Max. RS: 2.0Ω ; Iex<30 mA at Vk/2
Freq:50Hz; Ins.Level :12/36/95 kV; STC: 40 kA for 1 sec.; Ins.Cl: B
ConfirmedTo:IS2705/1992
Knee Point Voltage Test:
R – PH:
CT SL. NO.: CT12109180
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 9.7 9.3
40 14.0 13.6
60 16.9 15.1
80 19.9 17.7
100 23.7 20.2
120
140
160
180
200
220
- 8. Y – PH:
CT SL. NO.: CT12109188
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 12.5 9.2
40 16.6 12.9
60 19.1 15.6
80 22.0 18.7
100 24.1 21.5
120
140
160
180
200
220
B – PH:
CT SL. NO.: CT12109190
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 9.3 9.7
40 13.8 12.9
60 15.9 15.3
80 18.2 17.4
100 20.4 18.4
120
140
160
180
200
220
- 9. UNIT – 2
LAVT
CT – 2
Name Plate Details:
Core 1: 2500/5 A Burden: - CL: PS ISF / ALF : -
Core 2: 2500/5 A Burden: - CL: PS ISF / ALF : -
For Core 1: Vk: 400V; Max. RS: 2.0Ω ; Iex<30 mA at Vk/2
For Core 2: Vk: 400V; Max. RS: 2.0Ω ; Iex<30 mA at Vk/2
Freq:50Hz; Ins.Level :12/36/95 kV; STC: 40 kA for1 sec.; Ins.Cl: B
ConfirmedTo:IS2705/1992
Knee Point Voltage Test:
R – PH:
CT SL. NO.: CT12109170
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 9.7 9.5
40 14.0 13.5
60 17.4 16.8
80 21.4 19.5
100 25.2 21.8
120 23.1
140 26.1
160
180
200
220
- 10. Y – PH:
CT SL. NO.: CT12109178
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 10.1 10.0
40 14.2 14.5
60 17.1 17.9
80 19.5 20.9
100 21.6 24.4
120 23.8 28.2
140 26.4
160
180
200
220
B – PH:
CT SL. NO.: CT12109172
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 9.7 10.4
40 13.8 14.6
60 17.7 18.3
80 21.2 21.3
100 25.0 23.2
120 25.7
140 27.9
160
180
200
220
- 11. CT – 3
Name Plate Details:
Core 1: 2500/5 A Burden: - CL: PS ISF / ALF : -
Core 2: 2500/5 A Burden: - CL: PS ISF / ALF : -
For Core 1: Vk: 400V; Max. RS: 2.0Ω ; Iex<30 mA at Vk/2
For Core 2: Vk: 400V; Max. RS: 2.0Ω ; Iex<30 mA at Vk/2
Freq:50Hz; Ins.Level :12/36/95 kV; STC: 40 kA for1 sec.; Ins.Cl: B
ConfirmedTo:IS2705/1992
Knee Point Voltage Test:
R – PH:
CT SL. NO.: CT12109173
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 11.8 10.6
40 17.2 14.8
60 21.9 18.1
80 26.4 21.2
100 24.7
120 28.0
140
160
180
200
220
- 12. Y – PH:
CT SL. NO.: CT12109177
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 10.4 9.1
40 14.7 13.1
60 17.8 16.1
80 20.8 17.7
100 23.2 18.4
120 26.6 21.4
140 23.3
160 25.8
180
200
220
B – PH:
CT SL. NO.: CT12109168
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 10.6 10.1
40 14.6 13.9
60 17.1 16.1
80 19.6 18.5
100 22.2 20.6
120 25.3 23.1
140 25.8
160
180
200
220
- 13. UNIT – 2 NGT
CT – 1
Name Plate Details:
Core 1: 2500/5 A Burden: - CL: PS ISF / ALF : -
Core 2: 2500/5 A Burden: - CL: PS ISF / ALF : -
For Core 1: Vk: 400V; Max. RS: 2.0Ω ; Iex<30 mA at Vk/2
For Core 2: Vk: 400V; Max. RS: 2.0Ω ; Iex<30 mA at Vk/2
Freq:50Hz; Ins.Level :12/36/95 kV; STC: 40 kA for1 sec.; Ins.Cl: B
ConfirmedTo:IS2705/1992
Knee Point Voltage Test:
R – PH:
CT SL. NO.: CT12109189
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 10.0 9.0
40 14.1 12.3
60 17.0 15.3
80 20.4 17.2
100 23.2 19.7
120 21.9
140 24.2
160 26.7
180
200
220
- 14. Y – PH:
CT SL. NO.: CT12109191
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 7.7 9.9
40 12.1 13.9
60 16.2 17.2
80 20.3 19.3
100 24.6 22.2
120 24.6
140
160
180
200
220
B – PH:
CT SL. NO.: CT12109183
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 9.9 9.6
40 13.9 13.9
60 17.2 17.2
80 19.3 20.6
100 22.2 24.1
120 24.6
140
160
180
200
220
- 15. CT – 2
Name Plate Details:
Core 1: 2500/5 A Burden: - CL: PS ISF / ALF : -
Core 2: 2500/5 A Burden: - CL: PS ISF / ALF : -
For Core 1: Vk: 400V; Max. RS: 2.0Ω ; Iex<30 mA at Vk/2
For Core 2: Vk: 400V; Max. RS: 2.0Ω ; Iex<30 mA at Vk/2
Freq:50Hz; Ins.Level :12/36/95 kV; STC: 40 kA for1 sec.; Ins.Cl: B
ConfirmedTo:IS2705/1992
Knee Point Voltage Test:
R – PH:
CT SL. NO.: CT12109182
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 6.8 11.3
40 10.4 15.2
60 13.7 18.1
80 16.7 21.0
100 19.9 23.0
120 23.4 25.2
140 27.6 27.7
160
180
200
220
- 16. Y – PH:
CT SL. NO.: CT12109181
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 9.7 9.3
40 13.7 13.0
60 17.1 16.2
80 20.8 18.4
100 24.2 20.7
120 27.1 22.7
140 26.0
160 27.2
180
200
220
B – PH:
CT SL. NO.: CT12109187
Applied Voltage to secondary in Volts Measured Current in mA
Core 1 Core 2
20 10.3 10.3
40 14.5 14.4
60 17.8 17.2
80 20.6 20.0
100 24.3 22.2
120 28.4 25.4
140 28.5
160
180
200
220
