The Potential Transformer is made with high-quality core operating at low flux density so that the magnetising current is small. The terminal of the transformer should be designed so that the variation of the voltage ratio with load is minimum and the phase shift between the input and output voltage is also minimum.
|System Voltage||6.6 KV, 11 KV & 33 KV|
|Voltage Factor||1.2 Continuous / 1.9 for 8 Hours|
|Insulation Class||B and Higher|
|Accuracy Class||Metering Classes 0.2, 0.5, 1.0, 3.0 |
|Standard||IS:3156/1992, IEC 61869|
|Frequency||50 / 60 Hz|