并联电容器谐波放大引起的10kV线路断路器跳闸事故的分析  

Fault Analysis of 10k V Line Breaker Tripping Caused by Shunt Capacitor Harmonic Amplification

作　　者：曾海涛[1] 欧雄坚 胡少强[2] 

机构地区：[1]广东电网公司肇庆高要供电局,广东肇庆526100 [2]华南理工大学电力学院,广东广州510640

出　　处：《机电工程技术》2015年第1期108-111,共4页Mechanical & Electrical Engineering Technology

摘　　要：针对某变电站10 k V馈线经常发生跳闸的情况,通过分析,认为其跳闸的原因是由于无功补偿装置中并联电容器组的串联电抗器参数设置不合理,在电网中的非线性负荷产生的谐波作用下,引起了并联电容器组的高次谐波电流放大而导致断路器跳闸,根据实际情况提出了解决的方案。A deliberated study finds that the cause for feeder frequent tripping in a 10kV substation is the unreasonable parameter settings of series reactors in shunt capacitor banks of reactive power compensation device. Thus high harmonic currents in shunt capacitors are amplified by the effect of non-linear loads power system which results in the break tripping. The paper further proposes practical resolutions to the problems.

关 键 词：并联电容器 谐波放大 串联电抗器 断路器跳闸 

分 类 号：TM63[电气工程—电力系统及自动化]