Transformer Over-Current Setting
132kV
33kV
300/1
1000/1
50 MVA
%Z = 12%
51
51
Power Rating (MVA):
Voltage on LV Side (kV):
Voltage on HV Side (kV):
Impedance (%):
CT Ratio for LV Side:
CT Ratio for HV Side:
Trip Time for LV Side (s):
Trip Time for HV Side (s):
LV:
HV:
t
I
IEEE
IEEE EI
IEEE VI
IEEE MI
US
US I
US STI
IEC
IEC MI
IEC VI
IEC EI
UK
UK LTI
UK R
TD=
1.0
TMS=
0.1
IEEE
IEEE EI
IEEE VI
IEEE MI
US
US I
US STI
IEC
IEC MI
IEC VI
IEC EI
UK
UK LTI
UK R
TD=
1.0
TMS=
0.1