Industry information

Let's talk about high-voltage isolation switches first! The structure of the high-voltage isolating switch is simple and can be used to isolate the high-voltage power supply to ensure the safety inspection of other equipment. However, it does not have a unique arc-extinguishing configuration, so it is not allowed to operate under load. Now let's talk about high-voltage load switches! The high-voltage load switch is configured with arc extinguishing by striking, so it can cut off a certain load current and overload current. But it must be used with high-voltage fuses to use the power of the fuse to eliminate short-circuit faults.

The high-voltage isolating switch is mainly used to cut off the no-load current circuit and isolate the power supply. In the case of opening, there is an obvious cut-off point, which is used for safety monitoring of other electrical facilities. Normal load current and short-circuit fault current can be used reliably in closing conditions. Because there is no special arc-extinguishing configuration, it cannot be started, so the only operation that can be carried out can be carried out is when the circuit has been cut off by the circuit breaker. Remember not to work under load to avoid causing personal danger. The load switch is a kind of switching appliance on the isolation and opening of light. It has a simple arc-extinguishing configuration and can disconnect a certain load current and current, but cannot disconnect the short circuit current.

The fundamental difference between them lies in whether each device can automatically trip the load through a thermal trip when under load.