Tap changer with an improved monitoring system

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United States of America Patent

PATENT NO 10840033
APP PUB NO 20170271097A1
SERIAL NO

15611124

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An on-load tap changer is provided having a plurality of modules, each of which is operable to change taps in a transformer winding. The tap changer includes a motor connected to rotate at least one shaft. The at least one shaft is connected to the tap change modules and is operable upon rotation to cause the tap change modules to each perform a sequence of operations that effectuate a tap change. A multi-turn absolute encoder is connected to the at least one shaft. A monitoring system is connected to the encoder and is operable to determine from the position of the at least one shaft where the tap change modules are in the sequence of operations.

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First Claim

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Patent Owner(s)

  • ABB POWER GRIDS SWITZERLAND AG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Elick, Robert Alan Jackson, US 9 50
Teising, William James Jackson, US 6 21

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