A novel bridge solid-state fault current limiter and its application method
A fault current and limiter technology, which is applied in the direction of emergency protection circuit devices, electrical components, circuit devices, etc. used to limit overcurrent/overvoltage, to achieve the effects of lower requirements, high reliability, and simple overall structure
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[0038] In order to better understand the present invention, the content of the present invention will be further described below in conjunction with the accompanying drawings.
[0039] A new type of bridge solid-state fault current limiter, which is applied to the circuit schematic diagram of non-high-voltage power system faults, such as figure 2 As shown, the fault current limiter is composed of a single-phase rectifier bridge unit, a current limiting unit and a circuit breaking unit; the single-phase rectifier bridge unit includes a thyristor valve T and a diode D;
[0040] Both ends of the current limiting unit are connected to the single-phase rectifier bridge unit, one end is located between the cathode of the thyristor valve T1 of the single-phase rectifier bridge unit and the cathode of the diode D1, and the other end is located between the anode of the thyristor T4 of the single-phase rectifier bridge unit and the diode Between the anodes of D2, the two units jointly ...
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