| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for locating an insulation failure of a stator, which can locate a circumference of the stator where the insulation failure exists. <P>SOLUTION: In the method for locating the insulation failure of the stator, for example, in locating the insulation failure of the stator 50 having a stator iron core 60, an U-phase winding 71, a V-phase winding 72, and a W-phase winding 73, a specified voltage is applied to the U-phase winding 71, the V-phase winding 72 or the W-phase winding 73 so that mobile antennas 111b, 111c, 112b, and 112c for receiving an electromagnetic wave emitted by a partial discharge are relatively moved circumferentially with respect to the stator 50, in the state that the partial discharge is repeatedly generated at the insulation failure part of the U-phase winding 71, the V-phase winding 72 or the W-phase winding 73. The insulation failure is located on the basis of the mobile antenna signal detected by the mobile antennas 111b, 111c, 112b, and 112c. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
