| 摘要 |
A device for one-phase short-circuit current limitation in neutral of high-voltage autotransformer windings comprises in series connected high and medium voltage windings of an autotransformer, linear switch devices of supply network, an individual protection element in the neutral, low-voltage autotransformer winding and active resistance between taps of the said winding. Moreover, the device comprises protective elements, a shunt discharger, an individual earthing disconnector, a circuit with in series connected: a disconnector, a reactor, active resistance and a primary winding of the current transformer; disconnector with a high-voltage winding of the voltage transformer , capacitance, a shunt switching device and parallel control circuits of the shunt switching device. Also the device comprises a low-voltage winding of the voltage transformer with a voltage relay connected between its taps and in series connected a time relay and an auxiliary relay. |
