Grounding failure breaker
A ground fault and circuit breaker technology, applied in circuit devices, emergency protection circuit devices, emergency protection devices with automatic disconnection, etc., can solve problems affecting safe use, relay heating, function failure, etc., to achieve energy saving, self- Low energy consumption and improved safety in use
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[0025] Such as figure 1 As shown, a ground fault circuit breaker includes: a fault detection circuit 3 and a trip switch 5 arranged on a wire between a power plug and a load connection terminal, and a pair of pairs connected to the fault detection circuit 3 and the solenoid relay 4, respectively. The steady-state circuit 2, the bistable circuit 2, and the solenoid relay 4 are connected to the trip switch 5, and the power circuit 1 connected to the bistable circuit 2, the fault detection circuit 3 and the solenoid relay 4 respectively, set A trip indicating circuit 6 between the two wires and close to the trip switch 5, and a test circuit 7 arranged on both sides of the trip switch 5.
[0026] Such as figure 2 As shown, a ground fault circuit breaker includes a fault detection circuit 3 and a bistable circuit 2. The fault detection circuit 3 consists of a current transformer T1, a neutral transformer T2, an integrated circuit U1, resistors R8, R11, and capacitors C1, C4, C5, C7, a...
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