Pyrotechnically-assisted current interrupter

Details Pyrotechnically-assisted current interrupter Pyrotechnically-assisted current interrupter

H - Electricity

01

H

306/115

H01H 39/00 (2006.01)

Patent

CA 1266289

ABSTRACT OF THE DISCLOSURE A current interrupter wherein current is normally carried by a bus bar, and a portion of the bus bar is segmented by a pyrotechnic charge under excess current conditions. The charge is detonated by a detonator which is triggered by voltage across a resistive element in series with the bus bar. At the time the detonator is triggered, the resistive element provides sufficient resistance to trigger the detonator while operating at a temperature below its melting point. A control device may be employed to control current flow through the detonator.

534056

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