| 摘要 |
PURPOSE:To provide a stator iron core abnormality detector which can detect the abnormality of the iron core of a stator in operation at an early stage, and detect the position of abnormality in axial direction. CONSTITUTION:Magnetic flux detecting coils 4, which surround a plurality of iron core blocks 2a, 2b, 2c, and 2d divided by ventilation ducts 3, are arranged, and they are wired so that the voltages induced in each magnetic flux detecting coil 4 may be subtracted when they are composed. Moreover, it is equipped with an alarm 7 which issues an alarm when the composite voltage of each magnetic flux detecting coil 4 gets over a certain set range. |
