Circuit breaker driver module

The drive module is used in conjunction with the circuit breaker, serving as a control and online monitoring device for the circuit breaker system. The housing of the drive module is made of aluminum alloy, which can effectively shield electromagnetic interference, including five unit circuits：

• Switching power supply unit: Converts the external auxiliary power supply into the power source used by the internal circuit.

• Charging circuit unit: Stores electrical energy for the closing and opening capacitors.

• Discharge circuit unit: Injects positive excitation current or reverse demagnetization current into the excitation coil of the circuit breaker mechanism to magnetize or demagnetize the mechanism.

• I/O interface unit: It is used to receive the opening and closing commands as well as the input of the circuit breaker status.

• Control Unit: Monitors and controls the operation of the entire circuit breaker.

Basic function

• Provide the excitation current for closing operation

• Provide de-magnetizing current for opening operation

On-line monitoring

• Alarm for abnormal movement of auxiliary switch

• Manual trip alarm

Anti-jump and locking function

• The drive module itself has a function of anti-jump locking

application 

Driving MS Series circuit-breaker

Technology parameters