The low-voltage cabinet is an authorized cabinet, which means the low-voltage switchgear product produced by ABB authorized cabinet electrical complete plant. The whole mns2.0 low-voltage cabinet adopts ABB's advanced technology and is designed according to the requirements of the actual site owner. Anhui Derun Electric has been authorized to produce mns2.0 low-voltage cabinet for more than 10 years. Before each production of mns2.0 low-voltage cabinet, a small production meeting will be held to convey the details and key points of each batch of products to the assemblers. I'll let you know.

一、当壳体生产完时我们要进行壳体的检查，包括喷涂、打磨、壳体厚度、壳体各配件是否完好等。

1、 When the shell is produced, we shall conduct a comprehensive inspection of the shell, including spraying, grinding, shell thickness, whether all accessories of the shell are intact, etc.

壳体检查

Shell inspection

二、当壳体检查完后，我们就开始领每台柜子的元器件准备装配了， 在装配之前，我们还要对各元器件进行二次检查（收货时次检查），看是否有不合格的产品。

2、 After the physical examination of the shell, we begin to get the components of each cabinet ready for assembly. Before assembly, we also need to conduct a secondary inspection on the components (the first inspection when receiving the goods) to see whether there are unqualified products.

元器件安装前检查

Pre installation inspection of components

三、将每一个元器件按照图纸的步骤一步一步装配到MNS2.0开关柜中。

3、 Assemble each component into mns2.0 switchgear step by step according to the steps of the drawing.

主元器件已装配到柜内

The main components have been assembled into the cabinet

四、不同的柜型有不同的装配工艺，比较难装配的是抽屉柜中的每一个抽屉，因为抽屉柜分很多单元，每一个单元的尺寸不同，元器件大小也不同。这就需要装配工有一定的生产工艺水平了。

4、 Different cabinet types have different assembly processes. It is more difficult to assemble each drawer in the drawer cabinet, because the drawer cabinet is divided into many units. The size of each unit is different, and the size of components is also different. This requires the assembler to have a certain level of production technology.

抽屉单元

Drawer unit

五、装配完成后，我们会有车间检验员对每台柜子进行检查，包括螺丝是否拧紧，一批次开关柜内的接线是否一致；机械联锁是否正常、抽屉是否方便关合；指示灯、按钮和导线颜色是否符合规范；铭牌、警告标志内容等位置正确等。

5、 After the assembly, we will have workshop inspectors conduct all-round inspection on each cabinet, including whether the screws are tightened and whether the wiring in a batch of switchgear is consistent; Whether the mechanical interlocking is normal and whether the drawer is easy to close; Whether the colors of indicator lights, buttons and wires meet the specifications; The contents of nameplates and warning signs are correct.

整柜检查

Whole cabinet inspection

六、后一步就是出厂前调试了，此项工作由售后工程师们完成。根据国标要求，进行每一项出厂前试验检测。包括外观试验（电气间隙、爬电距离、绝缘电阻测试等）；通电试验，按电气原理图要求，接通设计规定的电源模拟动作，进行出厂前各项测试。各项要求都符合后，方可打包出厂。保证每一批次得润电气出厂的MNS2.0低压柜到达项目现场安装完成后通过现场简单的运行调试就可以使用了。

Six, the last step is debugging before leaving the factory, which is done by customer service engineers. Carry out each pre delivery test according to the requirements of national standards. Including appearance test (electrical clearance, creepage distance, insulation resistance test, etc.); Power on test: according to the requirements of electrical schematic diagram, connect the power supply specified in the design, simulate the action, and carry out various tests before delivery. After all requirements are met, it can be packaged and delivered. Ensure that each batch of mns2.0 low-voltage cabinets delivered by Derun electric arrive at the project site. After installation, they can be used through simple on-site operation and commissioning.