MNS低压抽屉柜的保养变电柜的检修步骤您知道怎么进行的吗？小编认为操作前应按下列步骤进行：

Maintenance of MNS low-voltage drawer cabinet Do you know how to carry out the maintenance of the transformer cabinet? The editor believes that the following steps should be followed before operation:

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。

Disconnect the load at 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, and hang the sign "No Switching On, Someone Working" on the handle of the switch cabinet, then short the bus bar with more than 10mm2 wire and hang the grounding wire, and tighten the bus bar screw.

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。

The contact part of the busbar shall be wiped clean again, coated with electric compound grease, and fastened with new spring gasket screws. Check whether the insulator and spacing connection between the busbar are abnormal, and check the reliability of the connection of the secondary winding terminals of the current, voltage and transformer.

拆除所有接地线、短接线，检查工作现场是否工具，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，合上有关联络柜和各支路自动空气开关。

Remove all grounding wires and short wires, check whether there are tools left at the work site, and after confirmation, close the isolating switch, disconnect the high-voltage side grounding switch, close the high-voltage side circuit breaker of the operating transformer, remove the signboard, and send power to the transformer, then close the circuit breaker of the low-voltage side receiving cabinet, send power to the busbar, and close the associated winding cabinet and the automatic air switch of each branch.

保养注意事项：

Precautions for maintenance:

1.检修过程中必须设专人监护。

1. Special personnel must be assigned to monitor the maintenance process.

2.工作前必须验电。

2. Check the electricity before working.

3.检修人员应对整个配电柜的电气机械联锁情况熟悉并操作。

3. The maintenance personnel shall be familiar with and operate the electrical and mechanical interlocking of the entire distribution cabinet.

4.检修中应详细了解哪些线路是双线供电。

4. During maintenance, it is necessary to know in detail which lines are double-wire power supply.

5.检修母排时，应对线路中的残余电荷进行充分放电。

5. When repairing the busbar, the residual charge in the line shall be fully discharged.

检修时应从变压器低压侧开始。配电柜断电后，清洁柜中灰尘，检查母线及引下线连接是否良好，接头点有无发热变色，检查电缆头、接线桩头是否牢固可靠，检查接地线有无锈蚀，接线桩头是否紧固。所有二次回路接线连接可靠，绝缘符合要求。关注我们http://www.tongyuhengcheng.com，带您了解更多事项！

The maintenance shall start from the low voltage side of the transformer. After power failure of the distribution cabinet, clean the dust in the cabinet, check whether the bus and down lead are well connected, whether the joint points are heated and discolored, whether the cable head and connection pile head are firm and reliable, whether the grounding wire is rusted, and whether the connection pile head is tight. All secondary circuit wiring shall be connected reliably and the insulation shall meet the requirements. Follow us http://www.tongyuhengcheng.com , take you to learn more!