摘要
本文阐述了集合式电容器在单星形接线、双星形接线、桥形接线方式下高次谐波电流对电容器内部故障保护可靠性的影响,通过针对电容器内部不同元件故障率(熔丝熔断率)情况下电磁式继保装置检测值中谐波含量的计算分析,得出单星形接线电容器的相差电压保护存在拒动作风险、而双星形接线/桥形接线电容器的不平衡电流/桥差电流保护则存在误动作风险。
This paper expounds the assemble type capacitor in single star connection,double star connection,bridge connection mode high-harmonic current of capacitor internal fault protection reliability impact,directed through the capacitor internal different component fault ate（the rate of the fuses） under electromagnetic type delay protection equipment detection value of harmonic content analysis,the single star connection capacitor voltage protection action is to risk,and the double star connection or bridge connection capacitor unbalance current bridge differential unbalanced current protection which have the risk of error-action.
出处
《江西电力》
2011年第5期25-27,共3页
Jiangxi Electric Power
关键词
高次谐波
集合式电容器
继保装置
high-harmonic
assemble type capacitor
protection equipment
