FIELD: electrical engineering.
SUBSTANCE: invention relates to the field of electrical engineering and can be used in electrical system (1) for a three-phase AC circuit. Switching device (100) for transformer (20U, 20V, 20W) with primary winding side (30U, 30V, 30W) and secondary winding side for each phase (U, V, W) of the AC network is designed such that it can connect each control winding (31, 32, 33) with each of main windings (21, 22, 23). Switching device (100) is located in one of housings (60U…W). Separate transformer housing (60U, 60V, 60W) is designed for each transformer (20U…W). Switching device (100) is connected to transformers (20U…W), wherein primary winding side (30U…W) and / or secondary winding side has main winding (21, 22, 23) and control winding (31, 32, 33) in each phase.
EFFECT: technical result is enabling efficient maintenance, higher safety and efficiency of switching the transformer windings of the electrical system.
9 cl, 13 dwg
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