How To Deal With Abnormal Operation Of High Voltage Isolating Switch

The above situation is very dangerous, especially when someone is working on the power-off equipment, which may cause personal injury, high voltage isolator equipment damage, and ground wire closing accidents. When this happens, it should be handled in accordance with the handling method of closing high voltage isolator switch with load.
The main reasons for the automatic drop and closing of the hv isolator moving contact are as follows:
1) The hv isolator switch operating mechanism in the open position is not locked or other forms of anti-misoperation devices fail.
2) high voltage electrical isolator mechanical locking fails, such as the spring pin vibrates and slides out.
To prevent similar situations from happening, the locking device of the operating mechanism is required to be reliable, and it must be locked after pulling isolator high voltage