On-load tap changer
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United States of America Patent
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Sep 27, 2016
Grant Date -
Jun 18, 2015
app pub date -
Apr 19, 2013
filing date -
Jun 14, 2012
priority date (Note) -
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Abstract
The invention relates to an on-load tap changer for switching among different winding taps of a step transformer without interruption. According to the invention, the selector contact unit (7) and the switching means (16, 17) for switching the load without interruption are jointly actuated without using an intermediate energy accumulator, by means of a threaded spindle (5) which is rotated by a drive motor (2) during a switching operation.
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