High-voltage direct-current circuit breaker
A high-voltage DC and AC circuit breaker technology, applied in the direction of circuits, electrical components, electrical switches, etc., can solve the problems of high cost of use, difficult to meet the operating time requirements, immature development of oscillation circuits, etc., to achieve shortened operating time, DC Reliable effect of arc extinguishing at zero crossing point of power transmission
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[0016] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that all the drawings of the present invention are in simplified form and use inaccurate scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.
[0017] like figure 1 and figure 2 As shown, the high-voltage DC circuit breaker provided by the present invention includes: an AC circuit breaker switch 10, a first power electronic circuit 20 connected to the input end of the AC circuit breaker switch 10 for converting DC to AC, and the The output terminal of the AC circuit breaker switch 10 is connected to the second power electronic circuit 30 for converting AC to DC. The first and second power electronic circuits 20, 30 are connected to the DC tra...
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