FIELD: electricity.
SUBSTANCE: invention relates to electric engineering, to induction device (27), designed for connection of multi-phase electric AC system with zero point. Device comprises coil (35) having inductance connected between electric circuit and earth potential. Device (27) is designed to let reactive current through coil (35) due to possible ground fault. Method is described to manufacture such a device.
EFFECT: simplification and cost reduction of ground fault effect mitigation.
29 cl, 7 dwg
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