Insulation resistance tester manufacturer Yangzhou Tuopu Electric Technology Co., Ltd. describes the causes of insulator flashover discharge phenomenon and treatment methods!
1. The surface of insulators and porcelain skirts are contaminated, and the compressive strength is reduced after moisture exposure. The discharge circuit is formed on the surface of the insulator to increase the leakage current. When it reaches a certain value, it causes surface breakdown discharge.
2. Although the surface of the insulator is contaminated, although it is very small, due to some overvoltage in the power system, the surface of the insulator is discharged by flashover under the action of overvoltage.
The treatment method is as follows: After the flashover discharge of the insulator occurs, the insulation performance of the insulator surface drops greatly, and it should be replaced immediately, and the non-flashover discharge insulator is cleaned.
Insulation resistance tester manufacturer Yangzhou Tuopu Electric Technology Co., Ltd. Contact:
Address: 2 Hotline, Guotai Road, Baoying Economic Development Zone, Jiangsu
company phone
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3. The surface of insulators and porcelain skirts are contaminated, and the compressive strength is reduced after moisture exposure. A discharge circuit is formed on the surface of the insulator to increase the leakage current. When the value reaches a certain value, surface breakdown discharge occurs.
4. Although the surface of the insulator is contaminated, although it is very small, due to some overvoltage in the power system, the surface of the insulator is discharged by flashover under the action of overvoltage.
The treatment method is as follows: After the flashover discharge of the insulator occurs, the insulation performance of the insulator surface drops greatly, and it should be replaced immediately, and the non-flashover discharge insulator is cleaned.