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Three-phase symmetrical device has three-phase symmetrical transformer whose primary windings are connected in star and are connected with free ends to phases of network, and with common connection point to neutral wire of network 2023-05-17
Method for compensating for single-phase earth fault currents in three-phase power transmission lines, involves introducing additional voltage between formed artificial neutral and earth, by extracting zero-sequence voltage from power transmission line voltages 2023-03-31
Three-phase symmetrizing device has three-phase symmetrizing transformer whose windings are connected in zigzag pattern, and transformer windings whose three outer terminals are connected to each other and to input terminal of device main portion and connected to neutral wire of power supply network 2023-03-28