Device and method for detecting arc-fault circuit interrupter
An arc fault and circuit breaker technology, which is applied in the field of arc fault circuit breaker equipment, can solve problems such as high cost and complex structure
Inactive Publication Date: 2014-10-08
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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Problems solved by technology
[0003] Aiming at the problems of complex circuit structure and high cost of traditional AFCI reliability testing devices, the present invention provides a device and method for testing arc fault circuit breakers with simple structure and low cost.
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Embodiment approach
[0070] As an implementable mode, the following steps are also included:
[0071] When the arc fault circuit breaker has not been disconnected for the inspection time, the control inspection process stops.
[0072] The test time of the fourth timer timing device, in this embodiment, the test time is 5min, it can be set in the MCU, controlled by the MCU, also can be an independent timer, such as a stopwatch. If the arc fault circuit breaker 6 is still not disconnected within the timing of the fourth timer, the MCU controls the inspection process to stop, so as to prevent the electrical appliances from being damaged due to too long test time.
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The invention provides a device and method for detecting an arc-fault circuit interrupter. The device comprises a transformer, relays, a power line cutting opening, a load and an MCU. The number of the relays is five, and the relays comprise the first relay, the second relay, the third relay, the fourth relay and the fifth relay. The first relay, the transformer, the power line cutting opening, the load and the second relay are sequentially and electrically connected, the first relay and the second relay are electrically connected with the arc-fault circuit interrupter, and therefore a first access is formed. The third relay, the power line cutting opening, the load and the fourth relay are sequentially and electrically connected, the third relay and the fourth relay are electrically connected with the arc-fault circuit interrupter, the fifth relay and the power line cutting opening are electrically connected with the load and then are grounded, and a second access is formed. The five relays are respectively and electrically connected with the MCU. The device can detect reliability of the arc-fault circuit interrupter, the circuit is simple in structure, and cost is low.
Description
technical field [0001] The invention relates to the field of arc fault circuit breaker equipment, in particular to a device and method for inspecting an arc fault circuit breaker. Background technique [0002] AFCI (Arc-Fault Circuit-Interrupter, Arc Fault Circuit Interrupter) is the latest circuit protection device, its main function is to prevent fire caused by arc. These dangerous electrical arcs can occur on the wiring of an appliance, at the point of plug-socket connection, as well as in the wiring harness inside the appliance or on the appliance's power cord. Therefore, it is particularly important whether the AFCI can be disconnected in time when the above-mentioned arc phenomenon occurs in household appliances and the like. The traditional device test circuit for testing the reliability of the AFCI has a complex structure and high cost. Contents of the invention [0003] Aiming at the problem of complex circuit structure and high cost of the traditional device fo...
Claims
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Login to View More IPC IPC(8): G01R31/327
Inventor 周建锋程国明刘智亮王凯音吴洪清
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI