Thyristor controlled short circuit current limiter
A technology of thyristor control and short-circuit current, which is applied to emergency protection circuit devices, electrical components, circuit devices, etc. for limiting overcurrent/overvoltage, and can solve problems such as not being simple enough, cost-effective, and expensive, and achieve structural Simple, easy-to-use effects
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[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0020] A thyristor controlled short circuit current limiter such as figure 1 shown. The saturable reactor has four terminals; the reactance coil terminal I1 and the reactance coil terminal II2 are connected to the internal reactance coil L1 of the saturable reactor to provide an AC current path; the DC coil terminal I3 and the DC coil terminal II4 are connected to the internal DC coil L2 of the saturable reactor to provide DC current path; reactance coil L1 and DC coil L2 interact through the closed-loop iron core inside the saturable reactor; figure 1 The structure and connection of a controllable saturable reactor shown in the saturable reactor 6 is a schematic diagram.
[0021] The reactance coil L1 in the saturable reactor 6 may be composed of a plurality of coils in series and connected in parallel, and the DC coil L2 in the saturable reactor 6 m...
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