1) Secondary Voltage Rating – 110V or 63.5V
2) Primary Voltage Rating
3) Accuracy Class- upto 0.2 Class
|
Test |
Test Method |
Year |
LL |
Unit |
UL |
Unit |
|
Power frequency dry withstand test on primary terminals- Common mode (separate source) withstand test - for Unearth VT |
IS 3156 (Part 1) |
1992 |
10 |
kV |
95 |
KV
|
|
IS 16227 (Part 2) |
2016 |
10 |
kV |
95 |
KV
|
|
|
IEC 61869-3 |
2011 |
10 |
kV |
95 |
KV
|
|
|
Power frequency dry withstand test on primary terminals- Common mode (separate source) withstand test - for Earthed VT |
IS 3156 (Part 1) |
1992 |
1 |
kV |
5 |
KV
|
|
IS 16227 (Part 3) |
2015 |
1 |
kV |
5 |
kV
|
|
|
IEC 61869-3 |
2011 |
1 |
kV |
5 |
KV
|
|
|
Power frequency dry withstand test on primary terminals- Differential mode (Induced) AC Voltage test for Unearth/Earthed VT |
IS 3156 (Part 1) |
1992 |
1.81 |
kV |
95 |
KV
|
|
IS 16227 (Part 3) |
2015 |
1.81 |
kV |
95 |
KV
|
|
|
IEC 61869-3 |
2011 |
1.81 |
kV |
95 |
KV
|
|
|
Power frequency dry withstand test on secondary terminals |
IS 3156 (Part 1) |
1992 |
1 |
kV |
5 |
kV
|
|
IS 16227 (Part 3) |
2015 |
1 |
kV |
5 |
kV
|
|
|
IEC 61869-3 |
2011 |
1 |
kV |
5 |
KV
|
|
|
Verification of terminal marking and polarity-Visual Test |
IS 3156 (Part 1) |
1992 |
0 |
0 |
0 |
0
|
|
IS 3156 (Part 2) |
1992 |
0 |
0 |
0 |
0
|
|
|
IS 3156 (Part 3) |
1992 |
0 |
0 |
0 |
0
|
|
|
IS 16227 (Part 3) |
2015 |
0 |
0 |
0 |
0
|
|
|
IEC 61869-3 |
2011 |
0 |
0 |
0 |
0
|
|
|
Determination of Voltage (Ratio) error |
IS 3156 (Part 1) |
1992 |
0 |
% |
3 |
%
|
|
IS 3156 (Part 2) |
1992 |
0 |
% |
3 |
%
|
|
|
IS 3156 (Part 3) |
1992 |
0 |
% |
3 |
%
|
|
|
IS 16227 (Part 3) |
2015 |
0 |
% |
3 |
%
|
|
|
IEC 61869-3 |
2011 |
0 |
% |
3 |
%
|
|
|
Determination of Phase Displacement |
IS 3156 (Part 1) |
1992 |
0 |
Min. |
120 |
Min.
|
|
IS 3156 (Part 2) |
1992 |
0 |
Min. |
120 |
Min.
|
|
|
IS 3156 (Part 3) |
1992 |
0 |
Min. |
120 |
Min.
|
|
|
IS 16227 (Part 3) |
2015 |
0 |
Min. |
120 |
Min.
|
|
|
IEC 61869-3 |
2011 |
0 |
Min. |
120 |
Min.
|
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