Title :
Partial discharge measurement for the investigation of solid insulation ageing [in electric machines]
Author :
Flohr, Th ; Pfeiffer, W. ; Kolev, N.
Author_Institution :
Fac. of Autom., Tech. Univ. of Sofia, Bulgaria
Abstract :
The paper deals with the use of partial discharge (PD) measurements for the investigation of solid insulation ageing caused by voltage and temperature stress. Different insulating materials such as insulating foils, insulated wires, insulating tapes and flexible insulating sleeving used in manufacturing of electrical machines were tested. Partial discharge data collected during a certain recording time have been accumulated. Comparisons between degradation caused by voltage stress, degradation caused by thermal stress and degradation due to both factors are given and discussed
Keywords :
ageing; electric breakdown; insulation testing; machine insulation; machine testing; partial discharges; electrical machine insulation; flexible insulating sleeving; insulated wires; insulating foils; insulating materials; insulating tapes; insulation breakdown tests; partial discharge measurement; solid insulation ageing; temperature stress; voltage and temperature stress; Aging; Cable insulation; Dielectrics and electrical insulation; Partial discharge measurement; Partial discharges; Solids; Stress measurement; Thermal degradation; Thermal stresses; Voltage;
Conference_Titel :
Electrical Insulation, 1996., Conference Record of the 1996 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-3531-7
DOI :
10.1109/ELINSL.1996.549380
