矿井供电线路短路保护的附加装置

Additional unit of short circuit in mine power supply

介绍了矿井供电线路中 ,正常起动电流和短路电流的判断方法及所附加的脉冲宽度鉴别电路 。

To describe the judge method of normal start current,short circuit current and additional pulse width inspevting circuit current,and ensure undergroud power supply safety.