某煤矿变电站母联合闸时态分析

The Temporal Analysis of bus tie Circuit Breaker Switching in the Process of Coal Mine's Substation

针对母联断路器合闸的短时并列操作所产生的暂态冲击威胁煤矿安全可靠供电的问题,通过以某煤矿35kV/6kV变电站的现场参数为计算依据,进行母联合闸的暂稳态电流的计算,并结合现场实测结果进行分析,从而总结出母联合闸产生的电流冲击过程对供电网络的影响,为直接带电合闸的智能母联倒闸装置的设计提供了理论计算基础和积极的指导意义。

In allusion to transient current impaetian due to the closing of bus tie circuit breaker which threaten the eoar mines＇ supply power safely and reliable in the parallel operation. Object of study in a coal mine the 35kV/6kV for the power supplement for the real system, the the tense calculation of the dynamic current of the parent joint gate, combined with the field test results were analyzed, which summed up the mother of the joint gate current produced by the impact processthe impoet of the supply network, directly charged closing intelligent mother of the switching device designed to provide a positive significance and reliable theoretical security.