On the basis of the routine test results and actual measured vibration data during the unit commissioning

the vibration characteristics of end winding on a domestic 1 000 MW turbo-generator stator were discussed.Moreover

comparison of dynamic characteristics between this quadrupole stator and an ambipolar stator with the same capacity was carried out.The results show that

the inherent frequency of this quadrupole stator end winding avoided the 100 Hz electromagnetic excitation frequency effectively

which had well dynamic characteristics;the maximum amplitude of the vibration under conditions of idling at rated speed of 1 500r/min

three-phase short-circuit test

full field test and rated load is not larger than24μm

indicating the vibration state is good;compared with the domestic ambipolar stator with the same capacity

the rotating speed of the quadrupole stator reduced to half

and the electric driven force at the winding end also halved.