Direct current circuit breaker and control method and device thereof
A technology of a DC circuit breaker and a control method, which is applied to emergency protection circuit devices, electrical components, etc., can solve the problems of unreliable transfer, unreliable breaking, and the short-circuit current of mechanical switches cannot appear zero, etc., so as to improve the reliability of breaking. resistance, the effect of preventing arc re-ignition
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[0043] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0044] Embodiment of the control method of the DC circuit breaker:
[0045] based on figure 1 In the bidirectional hybrid DC circuit breaker, this embodiment proposes a DC circuit breaker control method, the flow chart of the steps is as follows figure 2 As shown, it specifically includes the following steps:
[0046] (1) Under normal working conditions, all system current flows through the main current circuit.
[0047] For the convenience of analysis and description, the direction of the current flowing through the DC circuit breaker under normal working conditions is as follows: figure 1 The direction of the current i shown in is illustrated as an example. Under normal working conditions, the system current i all flows through the ...
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