Title :
Interaction of partial discharge streamers in cryogenic fluids with polymeric films
Author :
Mizuno, Y. ; Nagao, M. ; Kosaki, M. ; Shimizu, N. ; Horii, K.
Author_Institution :
Dept. of Electr. & Electron. Eng., Toyohashi Univ. of Technol., Japan
fDate :
8/1/1988 12:00:00 AM
Abstract :
Erosion by partial discharge and the layer effect on breakdown characteristics of polymeric films immersed in cryogenic fluids are examined. Meshlike patterns were observed on the polymeric film eroded by partial discharges in liquid helium, which may lead to poor life characteristics. The layer effect depends on the waveform and the magnitude of the applied voltage. This phenomenon is discussed in terms of the discharge characteristics of cryogenic liquid between film layers.
Keywords :
composite insulating materials; cryogenics; electric breakdown of solids; insulation testing; organic insulating materials; partial discharges; polymer films; LDPE; applied voltage waveform; breakdown characteristics; composite insulation; cryogenic fluids; erosion; layer effect; life characteristics; liquid He; meshlike patterns; partial discharge streamers; polymeric films; polypropylene; Cable insulation; Cryogenics; Electric breakdown; Electrodes; Helium; Nitrogen; Partial discharges; Plastic insulation; Polymer films; Voltage;
Journal_Title :
Electrical Insulation, IEEE Transactions on
