presently, the method of steady state unbalanced currents is widely used in the field test of torsional vibration characteristics of large-scale steam turbine generator rotor system.
目前大型汽轮发电机组轴系扭振特性的现场试验中广泛采用稳态不对称短路变频激振法。
this paper studies the methods of torsional vibration natural frequencies test of steam turbine generator rotor system, and introduces the excitation methods and some key techniques in the field test.