Capacitor unit with pressure sensor and pressure relief valve

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United States of America Patent

PATENT NO 11437809
APP PUB NO 20190273374A1
SERIAL NO

16348460

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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This application describes methods and apparatus for the safety and protection of capacitor units suitable for medium and high voltage applications, for instance within switching modules (400) of a voltage source converter as may be used for HVDC or FACTs. The capacitor unit (300) has a housing (201) within which is a capacitor comprising a plastic film dielectric material, for instance a winding (100) of first and second plastic films (101, 102) with metal coatings (103, 104). A pressure sensor (302) is configured to detect if the pressure in the housing exceeds a first pressure level and a pressure relief valve (304) is configured to vent gas from the housing if the pressure in the housing exceeds a second pressure level which is higher than the first pressure level.

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Patent Owner(s)

Patent OwnerAddress
GENERAL ELECTRIC TECHNOLOGY GMBH5400 BADEN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Burnett, Alistair Stafford, GB 5 50
Spibey, Neil Stafford, GB 1 1

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