Capacitor with insulation composition showing thermo-reversible oil-to-gel-transition

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United States of America Patent

PATENT NO 11657973
APP PUB NO 20210043381A1
SERIAL NO

16982278

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Abstract

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A wet capacitor is provided, and the use of an insulation fluid composition in such a capacitor. The capacitor includes a package of a metal foil and a polymeric insulating film, or of a metallized polymeric film, wherein the insulation composition includes a synthetic or natural aromatic oil and a polymer. The insulation composition is configured to undergo a thermo-reversible oil-to-gel transition at a predefined gel-point temperature. Further, methods of producing such wet capacitors are provided, optionally including additional filling materials, and methods of sealing leaks in such capacitors.

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Patent Owner(s)

Patent OwnerAddress
HITACHI ENERGY LTD8050 ZÜRICH

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bandalo, Felix Ludvika, SE 3 0
Logakis, Emmanuel Baden-Dättwil, CH 10 12
Qi, LeJun Beijing, CN 6 19
Scheel, Saskia Lenzburg, CH 4 3
Singh, Biswajit Västeras, SE 3 0
Zhang, Richard-changyu Xi'an, CN 1 0

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