| 摘要 |
PROBLEM TO BE SOLVED: To realize a preventive maintenance means for electric rotating machine by providing means for detecting the temperature at each part of an operating electric rotating machine conveniently and accurately. SOLUTION: Inner temperature is detected by means of a temperature fuse 4, encased in a hollow case 11 of electric insulator provided with a signal terminal 8 for transmission a signal, and provided with a metal piece 6 supported by resin 7 fusing at a specified temperature to touch the signal terminal. |
