Title :
Partial discharge characteristics in artificial air-filled voids immersed in liquid nitrogen
Author :
Tsuru, Shin-ichiro ; Nakamura, Masashi ; Funaki, Kazuo ; Iwakuma, Masataka ; Suehiro, Junya ; Hara, Masanori
Author_Institution :
Kyushu Univ., Fukuoka, Japan
Abstract :
With respect to degradation and failure of composite insulator in superconductivity power apparatus, partial discharge (PD) characteristics in artificial voids containing atmospheric air are investigated experimentally at room and cryogenic temperatures. The results show that the PD inception voltage, phase resolved PD characteristics, PD intensity and statistical delay time depend strongly on the temperature
Keywords :
composite insulating materials; dielectric liquids; insulation testing; nitrogen; partial discharges; voids (solid); N2; artificial air-filled void; composite insulator; cryogenic temperature; degradation; failure; liquid nitrogen; partial discharge; room temperature; superconductivity power apparatus; Cryogenics; Electrodes; Epoxy resins; Glass; Nitrogen; Partial discharges; Pollution measurement; System testing; Temperature; Voltage;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1997., Proceedings of the 5th International Conference on
Conference_Location :
Seoul
Print_ISBN :
0-7803-2651-2
DOI :
10.1109/ICPADM.1997.617569
