FIELD: electricity.
SUBSTANCE: according to method, magnetomotive force of the first phase is excited in the ratio of 2:1 to magnetomotive force of anticipatory phase and 2:1 to magnetomotive force of delayed phase. At the same time magnetomotive forces of delayed and anticipatory phases are directed towards magnetomotive force of the first phase of circuit.
EFFECT: increased efficiency of protection.
2 dwg
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