发明名称 METHOD AND APPARATUS FOR DEMAGNETIZING GENERATOR COMPONENTS PRIOR TO ELECTROMAGNETIC CORE IMPERFECTION TESTING OR EL-CID TESTING
摘要 A method and apparatus for determining and for reducing magnetism in a generator stator core (20). The method includes extending one or more conductors (38) proximate the core, applying a polarity-reversing excitation voltage to the one or more conductors, and reducing an amplitude of the voltage over time, wherein the voltage causes current to flow in the conductors, the current generating a magnetic field that demagnetizes the core. The method and apparatus are useful for determining hot spots in the core.
申请公布号 WO2013059268(A2) 申请公布日期 2013.04.25
申请号 WO2012US60544 申请日期 2012.10.17
申请人 SIEMENS ENERGY, INC. 发明人 METALA, MICHAEL J.;YZELMAN, WERNER
分类号 H01F13/00;G01R33/00 主分类号 H01F13/00
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