Institutions operating characteristics and arc motion characteristics were analyzed

The agency tested the circuit breaker operating characteristics and arc moving process, and agencies operating characteristics and arc movement characteristics were analyzed, and the short-circuit breaking capacity circuit breaker concrete improvement measures. For the circuit breaker  electric meter  mechanism and arc system models. Circuit breaker trip unit detects the fault current tripping command is issued immediately after the drive  circuit breakers  breaking action agencies (a) arc system (b) Figure 1 circuit breaker operating mechanism operating mechanism and arc system model sports in driving the moving contact breaker for breaking operation, carried out by the circuit breaker interrupter system off until the fault current interrupter.