电测与仪表2016，Vol.53Issue(z1)：33-37,5.
电容式电压互感器绝缘在线监测系统设计与应用
Design and application of on-line monitoring system for capacitor voltage transformer
摘要
Abstract
In order to ensure capacitor voltage transformer(CVT) in safe operation, an on-line monitoring system has been designed. In this paper, on on-line monitoring program is given and equivalent circuit of CVT is established. Calc-ulation formula of dielectric loss factor and capacity for CVT are deduced. Design of on-line monitoring system for ins-ulating property is in detail introduced, including current signal acquisition circuit, voltage signal acquisition circuit and A/D sampling circuit. The on-line monitoring system has been applicated to 500kV substation in Sichuan. The accuracy and effectiveness of the online monitoring system monitoring are verified by monitoring results.关键词
电容式电压互感器(CVT)/在线监测/介质损耗Key words
Capacitor Voltage Transformer/on-line monitoring/dielectric loss factor分类
信息技术与安全科学引用本文复制引用
黄嘉鹏,陈贤顺,张福州,李涛..电容式电压互感器绝缘在线监测系统设计与应用[J].电测与仪表,2016,53(z1):33-37,5.基金项目
国家电网公司研究开发费资助项目 （）
