Study on the Transfer Overvoltage Test of Capacitor Voltage Transformer

Transfer overvoltage test is difficult to achieve in instrument transformers' detection.Due to the large capacitance of capacitor voltage transformer(CVT),test of transfer overvoltage is more difficult.By way of analysis,study and calculation of the test circuit of the impulse voltage generator,A-type transfer overvoltage impulse wave of CVT meeting the standard requirements has been obtained,and the transfer characteristic has also been preliminarily investigated in this paper.