Arc Extinction Apparatus and DC Switch Apparatus

An improved arc extinction apparatus that can be used in an improved DC switch apparatus includes a pair of magnetic field elements in the exemplary form of permanent magnets to apply Lorentz forces to the arcs. The magnetic fields are arranged in the vicinity of the air gaps that form between the e...

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Hauptverfasser:	SIPE WARREN CLIFT, GAZDECKI RANDAL DEREK, PROHASKA RICHARD DONALD
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES RELAYS SELECTORS
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creator	SIPE WARREN CLIFT GAZDECKI RANDAL DEREK PROHASKA RICHARD DONALD
description	An improved arc extinction apparatus that can be used in an improved DC switch apparatus includes a pair of magnetic field elements in the exemplary form of permanent magnets to apply Lorentz forces to the arcs. The magnetic fields are arranged in the vicinity of the air gaps that form between the ends of a pivoting conductor and a pair of contacts such that the system is optimized to extinguish an arc at one air gap when current is flowing through the conductor in a first direction and is further optimized to extinguish an arc at the other air gap when current is flowing in an opposite direction through the conductor. This is accomplished by providing a magnet at each air gap of the circuit, with the magnetic fields being oriented parallel with the pivot axis and having their north poles pointed in the same direction.
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subjects	BASIC ELECTRIC ELEMENTS ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES RELAYS SELECTORS
title	Arc Extinction Apparatus and DC Switch Apparatus
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