作　　者： (徐飞）; (雷一鸣）;

机构地区： 包钢（集团）公司白云鄂博铁矿,内蒙古包头014080

出　　处： 《包钢科技》 2017年第A01期70-72,共3页

摘　　要： 白云铁矿新牵引变电所负责全矿的直流系统供电,将6 000 V的交流电经整流变为直流1 500 V,给全矿的铁路生产系统供电。现对其进行升级改造,在改造期间,进行空线路试送电的过程中,发生断路器线圈烧损情况。根据断路器烧损现象,分析断路器线圈烧损原因,提出防止断路器线圈烧损的保护电路。 The new traction substation in Baiyun Iron Mine is responsible for direct current system power supply of the whole mine. The 6 000 V alternating current is rectified into DC 1 500 V to supply power for the whole mine s railway pro-duction system. Now it is being upgraded, and during the test of power supply line, coil burning of circuit breaker occurs. According to the phenomenon of circuit breaker burning, causes for coil burning of circuit breaker are analyzed, and protec-tive circuit for preventing coil burning of circuit breaker is put forward.

关 键 词： 断路器线圈 大电流吸合 小电流维持 时间继电器 保护电路