FIELD: electrical engineering; circuit-opening devices.
SUBSTANCE: proposed electromagnetic operating mechanism has magnetic core with armature, control coil, current-carrying bus, and armature-holding permanent magnet. Operating mechanism is also provided with additional inductive-reactance current-carrying bus connected in parallel with main current-carrying bus and disposed beyond magnetic circuit of mentioned core or shielded therefrom.
EFFECT: enhanced speed of response to emergency currents.
1 cl, 2 dwg
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