Stator inter-turn fault detection of synchronous machines
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United States of America Patent
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Sep 22, 2009
Grant Date -
Apr 9, 2009
app pub date -
Oct 8, 2007
filing date -
Oct 8, 2007
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Abstract
A fault detection system using field current and rotor search coil voltage harmonics is provided. The technology is capable of detecting an inter-turn fault unambiguously and rapidly in a synchronous machine. The internal asymmetry of the machine that has adversely affected the earlier fault diagnosis results has, for the first time, been shown as an advantage.
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