Electrical machine with a restraint system for a rotor winding head
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United States of America Patent
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Feb 4, 2014
Grant Date -
Jun 14, 2012
app pub date -
Oct 18, 2011
filing date -
Apr 24, 2009
priority date (Note) -
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Abstract
An electrical machine configured to operate in a power range of several MVA includes a rotor configured to rotate about an axis. The rotor includes a rotor winding disposed in a rotor lamination stack and having an exposed winding head outside of the rotor lamination stack. The winding head includes a winding head retention system having a plurality of radially oriented retention elements each including a locking device configured to secure a respective one of the retention elements against at least one of an unintentional loosening and a flying away in an event of a breakage.
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