On-load tap changer
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United States of America Patent
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Sep 12, 2017
Grant Date -
Apr 2, 2015
app pub date -
Mar 25, 2013
filing date -
Apr 20, 2012
priority date (Note) -
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Abstract
An on-load tap changer for uninterrupted switching between different winding taps of a tapped transformer has a plurality of fixed selector contacts electrically connected with the individual winding taps, arranged in a line, and actuatable by two longitudinally displaceable movable selector contacts. Two vacuum interrupters serve for the uninterrupted switching of each phase. A motor drive actuates the on-load tap changer. The entire load changeover switch is arranged by a transmission module on the underside of a transformer cover.
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