Disconnector switch for galvanic direct current interruption
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United States of America Patent
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Jun 3, 2014
Grant Date -
Jan 12, 2012
app pub date -
Sep 22, 2011
filing date -
Mar 25, 2009
priority date (Note) -
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Abstract
A disconnecting apparatus for direct current interruption between a direct current source and an electrical device, in particular between a photovoltaic generator and an inverter, has a current-conducting mechanical switching contact and semiconductor electronics connected in parallel with the switching contact. The semiconductor electronics are non-conducting when the switching contact is closed, wherein a control input of the semiconductor electronics is wired with the switching contact in such a way that, when the switching contact opens, an arc voltage generated as a result of an arc via the switching contact switches the semiconductor electronics to become conducting.
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