FIELD: electrical engineering.
SUBSTANCE: proposed invention van be used for protecting whatever three-phase circuits against asymmetric modes. Proposed method consists in that phase wire currents are passed through three fuses fitted in electric circuits of said wires, and each fuse is additionally heated by current originating at outputs of filters and passing through heaters arranged nearby fuses.
EFFECT: higher safety.
2 dwg
Authors
Dates
2010-01-20—Published
2008-11-11—Filed