Property Analysis for On/off Surge of High-Voltage Motor

고압모터의 개폐써지 특성 분석

Whenever the large-capacitor and high-voltage pump motor is opened and closed, the power factor improvement condenser and the low-voltage equipment are often damaged by the sparking and the on-off power serge. In order to find the reason and resolve the problem, we have installed a transition wave recorder for obtaining the transient on-off power serge wave and a power disturbance analyzer for long-time monitoring. In this way we measured and analysed the condition of the high-voltage pump motor whenever it is opened and closed.