LIU YONGXIN, WANG PENGHAO, LI YANPENG, et al. Analysis and Calculation on the Fault of CVT Caused by Capacitor Element Breakdown. [J]. Power capacitor & reactive power compensation, 2014, 35(6): 77-80.
LIU YONGXIN, WANG PENGHAO, LI YANPENG, et al. Analysis and Calculation on the Fault of CVT Caused by Capacitor Element Breakdown. [J]. Power capacitor & reactive power compensation, 2014, 35(6): 77-80. DOI: 10.14044/j.1674-1757.pcrpc.2014.06.017.
基于CVT电容元件击穿的事故分析计算
摘要
针对电容式电压互感器(CVT)因电容元件击穿引起的设备故障问题
结合返厂解体情况
通过对故障电容式电压互感器进行试验
依据试验数据、电容单元数量和电容量进行理论计算
研究得出监测电容式电压互感器二次电压波动的取值范围
并提出运维策略
以进一步提高通过监测二次电压发现电容式电压互感器故障的几率。
Abstract
As for the fault of capacitor voltage transformer(CVT)due to breakdown of capacitor element
the theoretical calculation is made based on disassembly of the CVT in factory and on test data
capacitor element numbers and the capacitance throughout test of the faulty CVT
the secondary voltage fluctuation range of CVT is studied and obtained.The operation and the maintenance strategy are proposed so to increase the fault-finding probability of CVT
which will improve the problemfinding probability of CVT by detecting secondary voltage.
关键词
电容式电压互感器电容单元击穿二次电压
Keywords
capacitor voltage transformer(CVT)capacitor elementbreakdownsecondary voltage