FIELD: electrical equipment.
SUBSTANCE: invention relates to the electrical equipment. For the transformer core (13, 23) demagnetization, the demagnetization device (40) is connected to the transformer (10, 20) primary winding (11) with possibility of disconnection. For the transformer (10, 20) demagnetization to the primary winding (11) a variable signal is supplied.
EFFECT: technical result is increase in the electrical equipment operational reliability.
23 cl, 13 dwg
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Authors
Dates
2018-12-27—Published
2015-12-09—Filed