变电所是电力系统然后一到变电机构，从变电所出来的电往往都直接送给用电终端了。那么，变电所MNS低压抽屉柜开关送不上电怎么办？

Substation is the power system, and then one to the substation, the electricity from the substation is often directly sent to the terminal. So, what should we do if the switch of MNS low-voltage drawer cabinet can not be powered on?

首先不要直接再次合闸送电，先检查原因。首先要清楚这样一个操作规范，一般送电都是高压先送电到变压器，变压器连接至低压进线主开关柜，然后低压主进线开关合闸后低压柜主母排得电，然后每个抽屉可以通过分合主开关/或接触器 操作将电送出去，注意送电都是从高压至低压，从主开关至分路开关，送电前所有负载回路都必须处于分断状态。送不送上电并不是一次合闸就可以确定的。先要对分路进行合闸送电造作，看是否送电，如果不送电先断开分路电闸，检查原因。

First of all, don't switch on power again directly, check the reason first. First of all, it is necessary to understand such an operation specification. Generally, high voltage power is transmitted to the transformer first, and the transformer is connected to the main switch cabinet of low-voltage incoming line. Then, after the main switch of low-voltage incoming line is closed, the main bus bar of low-voltage cabinet is powered on, and then each drawer can switch on and off the main switch / or contact Operation will send out electricity, pay attention to the power transmission is from high voltage to low voltage, from the main switch to the shunt switch, all load circuits must be in the off state before power transmission. Whether the power is delivered or not can not be determined by a single switch on. First of all, switch on and send power to the shunt to see if power is sent. If power is not sent, disconnect the shunt switch and check the reason.
                          

另外，还需要先检查一下线路是否有虚接，如果线路没有问题，需要再检查一下进出口是否接对等等，确定没有问题，然后再一次合闸操作。

In addition, we also need to check whether the line has virtual connection, if there is no problem with the line, we need to check whether the inlet and outlet are connected correctly, etc., to make sure there is no problem, and then switch on again.

注意：合闸送电的操作一定要规范，逆时针方向扭动手柄是分闸；顺时针方向扭动手柄是合闸。

Note: the operation of closing and power transmission must be standardized. Turning the handle counterclockwise is opening; turning the handle clockwise is closing.

当所有问题都不存在，检查断路器是否处于分断状态，进一步检修。

When all problems do not exist, check whether the circuit breaker is in the off state for further maintenance.

感谢您的阅读，希望以上内容对您有所帮助，如您想了解更多精彩内容请点击我们的官网：MNS低压抽屉柜厂家。

Thank you for your reading. I hope the above contents are helpful to you. If you want to know more wonderful contents, please click our official website: MNS low voltage drawer cabinet manufacturer.