How to operate the electromagnetic coil protection device

In the power system, the use of electromagnetic coils is very extensive, and in the case of high-voltage electrical appliances, it is used in the closing circuit and the opening circuit of the high-voltage circuit breaker.

This kind of machine is the most important switch device in the system. Under normal operation, the circuit breaker can switch on and off the load current of the electric device; when there is a problem in the system, the short circuit can be reliably disconnected. The current, avoiding the extension of the accident, ensures the safe operation of the system, so the operation of the machine is the most important control operation of the system.

Its control machine excites the electromagnetic coil of the opening when the command of the opening is issued, the system of the starting valve or the system of the dice, the hydraulic release, pushes the main contact of the arc extinguishing chamber, and completes the procedure of breaking the brake When its trip program is completed, its moving contact A1 will immediately open and open the circuit of the open solenoid. When it issues an indication of closing, its moving contact A2 will open immediately.