1 目 录 井下供电系统两相短路电流计算 ................................................................................................... 2 井下供电系统两相短路电流计算 ................................................................................................... 2 一、K1 点选择在高压开关进线端 ......................................................................................... 2 二、K2 点选择在 500kVA 变压器出线端 .............................................................................. 2 三、K3 点选择在 100kVA 变压器出线端 .............................................................................. 3 四、K4(9111 采面配电点) ................................................................................................. 3 五、K5 点选择在绞车房 ......................................................................................................... 3 六、K6 点选择在 9112-2 回风巷掘进工作面配电点 ......................................................... 4 七、K7 点选择在+968m 三连运输巷掘进工作面配电点 ..................................................... 4 八、K8 点选择在+971m 三连回风巷掘进工作面配电点 ..................................................... 5 九、K9 点选择在 9112-2 回风巷掘进工作面备用局扇配电点 ......................................... 5 十、K10 点选择在水泵房配电点 ........................................................................................... 5 十一、三专线路计算 ............................................................................................................... 6 井下开关过流整定计算 ................................................................................................................... 7 一、9111 配电点 ...................................................................................................................... 7 二、9112-2 配电点整定计算 ..........................................................................