TEMPERATURE MEASUREMENT DEVICE FOR FIELD WINDING

PROBLEM TO BE SOLVED: To accurately measure a temperature of field winding of a salient-pole type rotor.SOLUTION: A salient-pole rotor 20 includes a magnetic pole protrusion 23 having a circumferential surface on which a field winding 24 is arranged. The magnetic pole protrusion 23 has a top face on which a magnetic pole head 25 is fixed. An insulation plate 26 is interposed between the field winding 24's radial direction outside end face and the magnetic pole head 25's radial direction inside end face. On the insulation plate 26's face on the field winding 24 side is arranged an optical fiber for temperature measurement; a temperature of the field winding 24 is measured by an optical fiber sensing system.SELECTED DRAWING: Figure 1 【課題】突極形回転子の界磁巻線の温度を正確に計測する。【解決手段】突極形回転子２０の磁極突部２３の周面に界磁巻線２４が配置され、磁極突部２３の頂面には磁極頭部２５が固定されている。界磁巻線２４の径方向外側端面と磁極頭部２５の径方向内側端面との間には、絶縁板２６が介装されている。絶縁板２６のうち界磁巻線２４側の面には、温度計測用の光ファイバを配置し、光ファイバセンシングシステムにより、界磁巻線２４の温度を計測する。【選択図】図１