Troubleshooting of isolating switch

Common faults of high-voltage isolating switches include overheating faults of isolating switches, broken faults of insulating porcelain bottles, and corrosion of conductive parts. Among them, the overheating fault is the most common defect in the operation of the high voltage isolating.
There are three ways to deal with the overheating of the isolating switch:

1.When the contacts of the isolating switch are overheated, clean up the dirt on the dynamic and static contacts according to the technical specifications. At the same time, wipe the metal parts of the contacts until they are shiny, and apply conductive paste according to the specifications.

2.The contact surface is oxidized. During maintenance, treat the metal contact part to keep the contact surface flat and have metal brightness; apply an appropriate amount of electric grease, and then measure the contact resistance of the isolating switch.

3.When the dynamic and static contacts are in poor contact, the bolts should be tightened during installation and maintenance, and the contact parts should be coated with electric grease to improve their electrical conductivity and prevent corrosion or oxidation of the contact parts.