| 摘要 |
<p>A shaft torsional vibration monitor for a poly-phase turbine generator (10) and its prime mover turbine (20) connected thereto comprises an electrical torque detector (50) detecting electromagnetic torque applied to the turbine generator rotor, a memory unit (60) capable of storing plural sets of torque variation data due to system disturbances each having an initial torque variation rate more than a predetermined amount, a first processor (70) fetching the sets of torque variation data one by one from the memory unit (60) and determining the corresponding shaft torsional vibration, and a second processor (80) determining fatigue and life expectancy of the rotary shaft system for the turbine generator (10) and its turbine (20) by accumulating torsional stresses caused by respective shaft torsional vibrations.</p> |
