330kV电容式电压互感器分压电容击穿故障原因分析及预控措施

Cause Analysis and Precontrol Measures for Breakdown of Voltage Divider Capacitor of 330kV Capacitive Voltage Transformer

本文中作者介绍了一例330kV电压互感器电容击穿的典型案例,描述了诊断试验情况,确定了电压互感器密封垫破损是设备异常的主要原因,最后从日常运维和检测等方面提出了预防措施。

A typical case of 330 kV voltage transformer capacitive breakdown is introduced by the authors in this paper. The diagnostic test situation is described. The damage of the voltage transformer gasket is the main cause of equipment anomaly. Precautionary measures are proposed based on daily operation and maintenance and testing.