What are the reasons why the high -voltage and low -voltage switching cabinet is wet?

2022-11-18 17:02:21

34次

Why is the switching cabinet wet? The switching cabinet is a key component of the software transmission and distribution system software. It can be used to automatically control the system of the system software to deal with various problems in the operation of traditional power networks. Properly handle high -voltage switching cabinets is important to maintain the stable power supply system. However, due to the limitation of the installation standard, the structure of the high -voltage section of the machine and equipment is getting closer and closer, the internal structure is getting closer and closer, and the distance between the grounding device and the grounding device of the transmission line decreases. Therefore, environmental elements are relatively high. Because the actual operation of the electrical equipment and manufacturing, especially on the day when the temperature is large, the switch cabinet is very prone to cause cold doubts.

Once a high -voltage and low -voltage switching cabinet distribution box occurs, it is very easy to cause significantly damage to the operation of electrical equipment. The key to the shared resource damage of the KYN28 specification pressure switching cabinet and GGD communication low -voltage switch cabinet is reflected in the following two levels:

(1) When the water in the switch cabinet is relatively large or generates condensate water, the epoxy resin partition surface installed in the middle of the switch cabinet is exposed to the water for a long time. The surface structure of the partition is destroyed, and it is easier to digest and absorb water and other conductive raw materials in the steam body. The soluble electrical raw material is slowly melted into the water and turned into an electrolyte solution. It produces a thin conductive liquid film on the surface of the partition, reducing the flame retardant performance of the plate.

(2) The environmental humidity in the bus switch cabinet is likely to cause the vertical orientation of the armor or the coagulation of the water droplets or condensate in the busy position of the armor after the armor switch cabinet. Discharge the edges and edges. When the parent line is gradually discharged, not only the bus ends are gradually melted, but many smoke and dust and metal materials are dissolved. In addition, the two phases will also discharge in strong metal materials to produce three -phase short circuit failure. It is likely to cause short -circuit failure. Therefore, when the switch cabinet is wet and cold, it must be wet immediately, otherwise it will cause great harm to the reliable operation of the switching power supply.

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