MNS低壓抽屜柜的保養變電柜的檢修步驟您知道怎么進行的嗎？小編認為操作前應按下列步驟進行：

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:

逐個斷開低壓側的負荷，斷開高壓側的斷路器，合上接地開關，并鎖好高壓開關柜，并在開關柜把手上掛上“禁止合閘，有人工作”的標志牌，然后用10mm2以上導線短接母排并掛接地線，緊固母排螺絲。

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.

母排接觸處重新擦凈，并涂上電力復合脂，用新彈簧墊片螺絲加以緊固，檢查母排間的絕緣子、間距連接處有無異常，檢查電流、電壓、互感器的二次繞組接線端子連接的可靠性。

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.

拆除所有接地線、短接線，檢查工作現場是否工具，確定無誤后，合上隔離開關，斷開高壓側接地開關，合上運行變壓器高壓側斷路器，取下標志牌，向變壓器送電，然后再合上低壓側受電柜的斷路器，向母排送電，合上有關聯絡柜和各支路自動空氣開關。

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.

保養注意事項：

Precautions for maintenance:

1.檢修過程中必須設專人監護。

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

2.工作前必須驗電。

2. Check the electricity before working.

3.檢修人員應對整個配電柜的電氣機械聯鎖情況熟悉并操作。

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

4.檢修中應詳細了解哪些線路是雙線供電。

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

5.檢修母排時，應對線路中的殘余電荷進行充分放電。

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

檢修時應從變壓器低壓側開始。配電柜斷電后，清潔柜中灰塵，檢查母線及引下線連接是否良好，接頭點有無發熱變色，檢查電纜頭、接線樁頭是否牢固可靠，檢查接地線有無銹蝕，接線樁頭是否緊固。所有二次回路接線連接可靠，絕緣符合要求。關注我們http://m.cr4.com.cn，帶您了解更多事項！

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://m.cr4.com.cn , take you to learn more!