Subsea transformer with seawater high resistance ground

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United States of America Patent

PATENT NO 9679693
SERIAL NO

14631661

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Abstract

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A seawater-based high resistance grounding device for a subsea transformer includes an insulated pipe mounted to the outside of the transformer so as to be exposed to seawater. The insulated pipe has two or more cylindrical metallic electrodes electrically connected to ground and to the neutral node of the secondary transformer windings. The volume of seawater within the pipe and between the electrodes provides one or more high resistance ground paths for protection of the transformer.

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Patent Owner(s)

Patent OwnerAddress
ONESUBSEA IP UK LIMITEDLONDON EC4V 6JA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Askeland, Audun Magne Bergen, NO 16 53
Diesen, Asbjoern Bergen, NO 3 5
Hadler-Jacobsen, Aage Nesttun, NO 6 36

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