短路电流限制措施在煤矿供电设计的应用

Application of Short Circuit Current Limiting Measures inCoal Mine Power Supply Design

根据山西某重组煤矿实际情况,提出了在新建矿井坑口总变电站变压器出口处增加限流电抗器的方案,以满足老旧设备短路分断容量,并通过了验证,有效解决了新建变电站系统短路电流过大对老旧井下设备所带来的一系列问题,同时降低未来新增设备技术要求,技术经济上具有较好的推广意义。

Based on the current situation of a restructured mine in Shanxi,this paper presents a plan to add current-limiting reactor at the exit of transformer in substation for the newly-built mining pits,in order to meet the criteria of short circuit breaking capacity of the old equipment,which has passed the test.It can solve a series of problems brought about by high short-circuit current in the newly-built substation system,and reduce the technical requirement of new equipment,which is well worth promoting in terms of technical economy.