两起消弧线圈系统故障案例分析  

Analysis of Two Fault Cases Happened in the Arc-Suppression Coil System

作　　者：徐青龙 吴炜 

机构地区：[1]常熟市供电公司,江苏常熟215500

出　　处：《江苏电机工程》2013年第4期18-19,23,共3页Jiangsu Electrical Engineering

摘　　要：文中对发生在消弧线圈系统中的两起故障案例进行了分析。针对某随调式高短路阻抗型消弧线圈在现场运行时出现的异常故障现象,参考厂家给出的故障信息判据,通过相关电气试验项目对该消弧线圈的故障原因进行了分析,最终发现该消弧线圈出现了匝间短路故障。在另一起消弧系统故障中,控制板的误触发和继电保护的不合理配置导致了接地变压器继电保护装置动作,并且对相关保护定值数据进行了计算,证明了开关动作的正确性,指出在保护配置方面应进行相应的调整。In this paper two faults happened in the arc-suppression coil（ASC） system are first analyzed.For the abnormal fault phenomenon of high short-circuit impedance type post-setting ASC at field operation,according to the fault information criterion given by the manufacturer,through some electrical tests,the reason that inter-turn short-circuit fault was happened in ASC was eventually found.In another case,the false triggering and unreasonable relay configuration lead to the grounding transformer relay protection device action.Relevant data is calculated to prove the correctness of the switch action,pointing out protection configuration should be adjusted accordingly.

关 键 词：消弧线圈 滤波异常 触发失控 

分 类 号：TM473[电气工程—电器]