电容式电压互感器二次电压异常的检测方法及处理  

Analysis and Treatment on Abnormal Secondary Voltage of Capacitor Voltage Transformer

作　　者：胡伟涛[1] 岳啸鸣[2] 祝晓辉[3] 闫佳文[3] 

机构地区：[1]国网河北省电力公司检修分公司,石家庄050070 [2]国网河北省电力公司电力科学研究院,石家庄050000 [3]国网河北省电力公司培训中心,石家庄050031

出　　处：《电气技术》2015年第8期99-102,共4页Electrical Engineering

摘　　要：电容式电压互感器是电网运行中不可或缺的重要设备,其主要是由电容分压器和电磁单元两部分组成。由于它结构简单且可兼具多种设备的功能,近几年,在电力系统中得到广泛应用。但由于厂家工艺、产品本身质量问题等原因,电容式电压互感器发生的故障较多。本文阐述了电容式电压互感器的工作原理;对电容式电压互感器二次电压常见的缺陷进行了分析,并针对不同的缺陷原因提出了检测方法,提出了运行维护的注意事项及防范措施。Capacitor voltage transformers are important equipments in power network operation, which mainly Consists of capacitive divider and electromagnetic unit. Because its structure in simple and many functions, they are widely used in the power system. Through test of CVT and disassembly inspection, it is proved that the main cause of lots of faults for the capacitive voltage transformer is the selection of raw material and manufacturing process. The paper mainly focuses on the working principle of the capacitor voltage transformers, analyzes the common faults of the capacitive voltage transformer secondary voltage. Finally, the suggestions for operation, maintenance and production of capacitor vohage transformers have been proposed.

关 键 词：电容式电压互感器 二次电压 异常 检测 

分 类 号：TM451[电气工程—电器]