由断路器跳跃引起变压器损坏的事故分析及其改进措施  

Analysis and Improvement of Accident for Transformer Caused by Circuit Breaker’s Jumps

作　　者：周海燕[1] 张立港 陈金辉[1] 

机构地区：[1]华北保定电力职业技术学院,河北保定071051 [2]神华河北国华定洲有限责任公司,河北保定073000

出　　处：《低压电器》2011年第8期58-61,共4页Low Voltage Apparatus

摘　　要：叙述了发电厂出线断路器由于液压机构原因发生多次跳跃,使变压器烧损的事故过程及原因,并就该过程对线路重合闸/手合后加速保护、断路器三相位置不一致保护、失灵保护定值提出了改进意见,讨论了当采用发电机-变压器-线路接线方式时的线路重合闸方式。Many jumps of the power outlet breaker for the hydraulic mechanism of occurrence were described,which led to the transformer’s burning incidents.For the purposes of the process,the proposed improvements were given for the line reclosing on/hand joint protection after the acceleration,protection of the three-phase circuit breaker position inconsistent,failure protection value,and the type of line reclosing when using the generator-trans-former-line mode was discussed.

关 键 词：断路器 跳跃 变压器 事故分析 改进措施 

分 类 号：TM561[电气工程—电器]