Knowledge Notes on Porcelain Insulator products
2023-04-12
Today we will introduce Porcelain Some relevant knowledge about Insulator products, I hope it can help you.
The application of power devices in our power industry has been very frequent. Their use has brought more convenience to our power work. There are also many types of power devices. Today we will introduce Porcelain Some relevant knowledge about Insulator products, I hope it can help you.
When it is used normally in our shop, the use of power devices is also very important. There are many types of power devices, and Porcelain Insulator products is one of them. The basic functions of an insulator include electrical, mechanical and thermal functions. In addition, there are functions such as environmental resistance and aging resistance. The destructive discharge that occurs along the insulating surface is called flashover, and the flashover characteristic is the main electrical function of the insulator. With regard to different voltage levels, the withstand voltage requirements of insulators are different. Its targets include power frequency dry and wet withstand voltage, lightning impulse withstand voltage, lightning impulse chopping withstand voltage, and operating impulse withstand voltage. In order to avoid breakdown during operation, the breakdown voltage of the insulator is higher than the flashover voltage. In the factory test, the breakdown-type Porcelain Insulator products generally pass the spark test, that is, applying high voltage to cause frequent sparks on the insulating surface, and keep it for a certain period of time to see if it is broken down. Some insulators also need to pass corona test, radio interference test, partial discharge test and dielectric loss test.
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