| 摘要 |
An electromagnetic relay, said relay comprising: an armature movable between ON and OFF positions A magnetic core surrounded by first windings forming a holding coil to magnetize said core when a first portion of alternating electrical current is passed through said holding coil and consequently to cause said armature to move from said OFF position to said ON position, resulting in causing a second portion of alternating electrical current to flow through said load; said magnetic core additionally surrounded by second windings forming a load coil through which said second portion of said alternating electrical current flows when said armature is in said ON position, said load coil producing a magnetic field which counteracts a magnetic field produced by said holding coil.
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