变电柜的检修：
Maintenance of substation cabinet:
1：操作前应按下列步骤进行：逐个断开低压侧的负荷，断开高压侧的断路器，合上接地开关，并锁好高压开关柜，并在开关柜把手上挂上“禁止合闸，有人工作”的标志牌，然后用10mm2以上导线短接母排并挂接地线，紧固母排螺丝。
1: Before operation, the following steps should be followed: disconnect the load on the low-voltage side one by one, disconnect the circuit breaker at the high-voltage side, close the grounding switch, lock the high-voltage switch cabinet, hang the sign of "no switching on, someone working" on the handle of the switch cabinet, and then short-circuit the bus bar with more than 10mm2 wire, hang the grounding wire, and tighten the bus bar screw.
2：检修操作步骤：母排接触处重新擦净，并涂上电力复合脂，用新弹簧垫片螺丝加以紧固，检查母排间的绝缘子、间距连接处有无异常，检查电流、电压、互感器的二次绕组接线端子连接的可靠性。
2: Maintenance operation steps: wipe the contact part of busbar again, coat it with power compound grease, fasten it with new spring gasket screw, check whether there is abnormality in insulator and spacing connection between busbar, and check the connection reliability of secondary winding terminal of current, voltage and transformer.
3： 送电前的检查测试：拆除所有接地线、短接线，检查工作现场是否遗留工具，确定无误后，合上隔离开关，断开高压侧接地开关，合上运行变压器高压侧断路器，取下标志牌，向变压器送电，然后再合上低压侧受电柜的断路器，向母排送电，最后合上有关联络柜和各支路自动空气开关。
3：  Inspection and test before power transmission: remove all grounding wires and short wires, check whether there are tools left on the work site. After confirming that there is no error, close the disconnector, disconnect the grounding switch at the high voltage side, close the circuit breaker at the high voltage side of the operating transformer, take down the sign board, and then turn on the circuit breaker of the low-voltage side power receiving cabinet to supply power to the bus bar, and finally close the relevant network cabinet and the related network cabinet Automatic air switch of each branch.