Triggered vacuum gap that controllably sustains a vacuum arc through current zeros

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United States of America Patent

PATENT NO 12205784
APP PUB NO 20220102944A1
SERIAL NO

17400418

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Abstract

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A triggered vacuum gap (TVG) device that has application as a closing switch for synchronized closing in distribution and transmission power systems. The TVG device controllably sustains a current arc in the device through initial current zeros created by power system transients and, thereby, prevents premature interruption of the closing operation. The TVG device includes main electrodes defining a vacuum gap therebetween and a triggering electrode providing a triggering gap between one main electrode and the triggering electrode. The TVG device also includes a triggering circuit having a high voltage impulse source that supplies a fast rising impulse voltage to the one main electrode and the triggering electrode for creation of a plasma to provide an initial breakdown of the triggering gap and a low voltage unidirectional current source that supplies current to the one main electrode and the triggering electrode once the first triggering gap breakdown has occurred.

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Patent Owner(s)

Patent OwnerAddress
S&C ELECTRIC COMPANY6601 N RIDGE BLVD CHICAGO IL 60626

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Djogo, Goran Mount Prospect, US 13 27

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