High Voltage Disconnector Maintenance

1) Clean the dust on the surface of the porcelain parts, check whether the porcelain parts have glaze loss, damage, cracks and flashover marks, and whether the iron and porcelain joints of the insulators are firm. If the damage is serious, they should be replaced;
2) Use gasoline to wipe off the oil stains on the blades, contacts or contact fingers, check whether the contact surface is clean, whether there are mechanical damage, oxidation and overheating marks, distortion, deformation, etc.;
3) Check whether the accessories on the contacts or blades are complete and damaged;
4) Check whether the leads connecting the disconnector and busbar and circuit breaker are firm and whether there is overheating;
5) Check whether the flexible connection parts are broken or broken;
6) Check and clean the operating mechanism and transmission parts, and add appropriate amount of lubricating grease;
7) Check whether the distance between the transmission part and the live part meets the requirements; whether the positioner and brake device are firm and whether the action is correct;
8) Check whether the base of High Voltage Disconnect Switch is in good condition and whether the grounding is reliable.