断路器分合闸线圈烧毁的原因分析及改进方法研究  

Cause Analysis and Improvement Method for Burning of Circuit Breaker Break-Open Coil

作　　者：靳楠 张岩坡 邳浚哲 张韶光 张旭 JIN Nan;ZHANG Yanpo;PI Junzhe;ZHANG Shaoguang;ZHANG Xu(State Grid Hebei Extra High Voltage Company,Shijiazhuang 050071,China)

机构地区：[1]国网河北省电力有限公司超高压分公司,河北石家庄050071

出　　处：《电工技术》2024年第6期142-144,共3页Electric Engineering

摘　　要：针对断路器分合闸操作过程中线圈烧毁现象,从断路器操作机构以及控制回路工作原理着手,分析得出分合闸线圈烧毁的根本原因为线圈长时间带电。对此提出了多种改进方法,经过比对确定非接触测量为最优方法。该方法可以在不拆卸操作机构器件、不更改控制回路的条件下完成对分合闸线圈运行情况的监测与评估,实现实时保护及提前预测。In view of the phenomenon of coil burning during break-open operation of circuit breakers,starting with circuit breakers′mechanism and control circuit working principle,it is analyzed that the root cause for burning of break-open coils is long-time charging operation.Several corresponding improvement methods are proposed.After comparison,it is determined that non-contact measurement is the best method,which can monitor and evaluate the operation of break-open coil without disassembling the mechanism device and without changing the control loop,and can enable real-time protection and advance prediction the coils.

关 键 词：断路器 分合闸线圈 烧毁 非接触测量 控制回路 

分 类 号：TM561[电气工程—电器]