| 摘要 |
PURPOSE:To detect various parameters of a rotor in non-contact state with simple structure and high reliability by employing power produced at an auxiliary coil provided in parallel with the armature coil of an AC exciter as an FM telemeter oscillator driving power. CONSTITUTION:An AC exciter auxiliary coil 7 is provided in parallel with the exciter armature coil 3 of a rotor 2 rotating oppositely to the stator 1 of an AC generator. An AC exciter field coil 6 magnetically coupled with the coil 7 is provided at the stator side. The power of the coil 7 is connected to the AC side input terminal of the constant voltage rectfier 8, and the output side terminal of the rectifier 8 is connected to the power terminal of an FM telemeter oscillator 9. The output signals of sensors 11a, 11b provided at the prescribed positions of the rotor 2 are inputted to an FM telemeter oscillator 9, are trasmitted to an FE telemeter receiver 13 provided out of the rotor 2, and is outputtd to a recorder 14. |
