Surge arrester leakage current tester

The excellent hydrophobicity and unique hydrophobic migration property of composite insulators effectively prevent flashover, reducing the occurrence of accidents.

Hydrophobicity refers to the insulator's surface resistance to moisture, with absorbed water existing in discontinuous, isolated droplets rather than forming a continuous film. This limits surface leakage current and enhances the flashover voltage.

The hydrophobic migration refers to the phenomenon where, after a hydrophobic material becomes soiled, it can transfer its hydrophobic properties to the surface of the dirt, resulting in the dirt surface also exhibiting hydrophobic characteristics.

Field tests have proven that in operation, composite insulators can experience a decrease or even loss of hydrophobicity due to factors such as contamination, humidity, discharge, and low temperatures, which directly affects The anti-fouling performance of the transformer and transmission equipment is even threatening the safe operation of the system. Therefore, the hydrophobic properties of the composite insulators in operation need to be addressed. Routine testing is highly necessary.

The composite insulator's live voltage tester boasts a simple structure and easy operation, enabling quick and accurate assessment of the hydrophobic condition of insulators. Main application areas: Power Bureau, complete set manufacturers of composite insulators, line maintenance departments, and relevant units involved in the maintenance of high-voltage lines in the power industry, power plants, schools, research institutions, and other related entities.