Title :
Study on acoustic characteristics of aged stator insulation of generators
Author :
Ma, Xiaoqin ; Lu, Weisheng ; Jiang, Xiongwei ; Zhao, Shaoxing ; Xie, Hengkun
Author_Institution :
State Key Lab. of Electr. Insulation, Xian Jiaotong Univ., China
Abstract :
The acoustic characteristics of stator insulation will change with the increase of voids and delamination at mica/epoxy interface due to insulation aging. In this paper, a physical model is proposed to investigate the acoustic signal response to an impact, applied to the stator bar containing voids and delamination. Acoustic experiments are performed to study the acoustic characteristics of stator bars in the period of accelerated aging test
Keywords :
acoustic emission testing; ageing; delamination; electric generators; epoxy insulation; insulation testing; life testing; machine insulation; machine testing; mica; stators; voids (solid); accelerated aging test; acoustic characteristics; acoustic signal response; aged stator insulation; delamination; generators; impact; insulation aging; mica/epoxy interface; stator bars; voids; Acoustic testing; Acoustic waves; Aging; Character generation; Delamination; Dielectrics and electrical insulation; Frequency; Insulation testing; Stators; Vibrations;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2000. Proceedings of the 6th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
0-7803-5459-1
DOI :
10.1109/ICPADM.2000.875648
