基于CVT电容元件击穿的事故分析计算  

Analysis and Calculation on the Fault of CVT Caused by Capacitor Element Breakdown

作　　者：刘永鑫[1] 王鹏皓 李艳鹏[1] 梁基重[1] 马丽强[1] 

机构地区：[1]国网山西电力科学研究院,山西太原030001 [2]国网太原供电公司,山西太原030001

出　　处：《电力电容器与无功补偿》2014年第6期77-80,90,共5页Power Capacitor & Reactive Power Compensation

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。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 

分 类 号：TM451.2[电气工程—电器]