Electric power conversion apparatus
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United States of America Patent
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Jul 22, 2014
Grant Date -
Jul 5, 2012
app pub date -
Mar 16, 2012
filing date -
Sep 17, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
An electric power conversion apparatus comprises: three conversion units; a backup conversion unit that can be substituted for any one of the conversion units; and a backup terminal conductor unit. The conversion units, which are mounted on a converter board disposed in a case, can convert a DC current to a three-phase AC current having U-, V- and W-phases. If any one of the conversion units goes out of order, the backup terminal conductor unit can then electrically connect the auxiliary conversion unit, in substitution for the conversion unit having gone out of order, to a three-phase AC input/output unit.
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