Title: Self-closing electromagnetic contactor
Application Number: 85100193 Application Date: 1985.04.01
Publication Number: 1008184 Publication Date: 1987.01.31
Approval Pub. Date: Granted Pub. Date: 1988.06.01
International Classifi-cation: H01H51/27
Applicant(s) Name: Guo Xinggan Address:
Inventor(s) Name:
Attorney & Agent: GU LUXIANG
Abstract:
     The contactor iron core is replaced by semihard magnetic material, using DC pulse current to close the contactor and using magnetic remanence to maintain the closing state. When a proper opposite DC pulse current is applied to deperm, the contactor is released. The semi-hard magnetic material here is martensitic magnetic steel. Because the closing maitain current is economized, it may save energy, not burn exciting coil, there is no noise, the production cost is reduced and the work reliability is increased.
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