自愈式电容器压差保护计算分析  

Calculation Analysis of the Voltage Differential Protection for Self-healing Capacitor

作　　者：王恺[1,2] 李翔[3] 

机构地区：[1]上海交通大学电气工程系,上海200240 [2]上海市电力公司沪北供电分公司,上海200072 [3]上海市电力公司浦东新区供电公司,上海201203

出　　处：《供用电》2010年第1期52-54,共3页Distribution & Utilization

摘　　要：随着自愈式电容器的使用,对电容器的保护也由原来的中性点电流零序差动保护改为压差保护。介绍了压差保护的原理、接线以及动作定值的计算,并推算出压差保护动作时电容器单元内电容元件可能损坏的数目。With the use of self-healing capacitor, the protection of capacitor has also been changed from original zero sequence neutral current differential protection into voltage differential protection. This article describes the principle, wiring and setting value calculation of voltage differential protection, also estimates the number of possible faulty components in capacitor unit when the voltage differential protection is operated.

关 键 词：自愈式电容器 压差保护 元件损坏 

分 类 号：TM531.4[电气工程—电器] TM772