Intelligence circuit breaker closing coils protection device

The utility model discloses an intelligence circuit breaker closing coils protection device belongs to high voltage circuit breaker closing coils protection device, but aim at providing the protection device in an automatic switch -over breaker closing return circuit. It includes the switching -on holding circuit of closing coils auxiliary switch (1) and closing coils (2), and it has relay normally closed contact (13) to establish ties at closing coils auxiliary switch's (1) front end, and the front end of this relay normally closed contact has connect hall voltage sensor (12), this hall voltage sensor leaves module (4) and relay (5) order with signal conditioning module (11), AD conversion module (10), failure diagnosis module (9), relay and establishes ties. The utility model discloses an external power supply does not cause any interference to former control circuit alone, break down or unsatisfied the combined floodgate when requiring at the circuit breaker, the control circuit of changeable circuit break