Direct-current special controller for electric arc furnace circuit breaker

A direct-current special controller for an electric arc furnace circuit breaker relates to the field of electric arc furnace circuit breakers and comprises an energy storage unit, an energy storage indication unit, a closing protection unit, an anti-tripping unit, an opening protection unit, a counter unit, a closing contactor protection unit, a controller wiring terminal, four diodes and four resistors. The closing contactor protection unit comprises a closing main loop control unit and a silicon controlled rectifier; according to the utility model, the closing main loop is not conducted when the main contact of the closing contactor is closed, and the silicon controlled rectifier controls the conduction of the closing main loop, so that no current is generated and only large direct current is conducted when the main contact of the closing contactor is closed, and the arc voltage difference is rapidly reduced through the opening protection unit; the arc light is automatically cut off when the voltage of the