牵引变电所设置馈线大电流闭锁重合闸改善主变压器运行条件措施的探讨

Discussion on the Improvement Measures of Operating Conditions for the Main Transformer in Traction Substation by Way of Re-closing for High Current of Feeder

通过分析事故案例,说明牵引变电所近端短路可能对设备安全造成严重后果和危害,根据牵引变电所馈线保护设置情况,结合现场设备,对牵引变电所改善主变压器运行条件设置馈线大电流闭锁重合闸进行探讨分析,提出完善馈线保护的措施,以改变牵引变压器运行条件,减少主变压器故障,延长主变压器使用寿命。

By way of analyzing accidents,this paper explains the consequences and damages caused by proximal short circuit accidents of the traction substation.According to the condition of feeder protection and the current equipment,it also analyses the improvement of the main transformer for traction substation and the operation of reclosing for high current of feeder.Thus the paper puts forth some measures for feeder protection to improve the operating condition of the traction transformer,reduce main transformer accidents and extend the service life of main transformer.