High-precision arc extinction line selection device based on double-eddy-current driving type quick circuit breaker

The utility model relates to a high-precision arc extinction line selection device based on a double-eddy-current driving type quick circuit breaker, which comprises a quick circuit breaker, a high-precision line selection controller, a detection control system, a current transformer, an isolating switch, an overvoltage protector, a voltage transformer and a high-voltage fuse, one end of the isolating switch is simultaneously connected in parallel with a high-voltage fuse and a quick circuit breaker, the high-voltage fuse is connected in series with an overvoltage protector and a voltage transformer which are connected in parallel and performs grounding protection, and the output end of the quick circuit breaker is connected with a current transformer and performs grounding protection. The beneficial effects are that the device employs a unique double eddy current driving principle, is high in stability, is long in service life, is higher in driving speed, automatically carries out the credibility quantitativ