Shortening The Replacement Time Of High-voltage Disconnect Switches Can Reduce The Spread Of Faults.

When power equipment maintenance teams replace high-voltage system equipment, shortening the replacement cycle of equipment high voltage isolator can reduce the potential for faults to spread to other equipment. In actual operation and maintenance, equipment high voltage isolator switch, which has been in operation for a long time, may experience poor contact or opening/closing failures due to contact wear, mechanism aging, or aging operating mechanisms.

If equipment hv isolator has experienced problems such as incomplete opening/closing or contact overheating, failure to replace it in a timely manner may exacerbate the problem when the system load increases, ultimately preventing equipment hv isolator switch from cutting off power at critical moments, causing the accident to spread to other power supply units. Therefore, appropriately shortening the replacement cycle and reducing the number of equipment operating beyond its service life is a pragmatic approach to reducing cascading risks.