Title :
Space charge in polyethylene under AC electric stress using the pulsed electroacoustic method
Author :
Ching, Y.L. ; Miyake, H. ; Tanaka, Y. ; Takada, T. ; Nakama, H. ; Chen, G.
Author_Institution :
Sch. of Electron. & Comput. Sci., Southampton Univ., UK
Abstract :
This paper reports on space charge in XLPE planar samples of approximately 220 μm thick, subjected to dc 30 kV/mm and 1 Hz, 10 Hz and 50 Hz ac 30 kVpk/mm conditions for 24 hours. Measurements of space charge were carried out using the pulsed electroacoustic (PEA) technique. In addition, experiments with higher applied electric stress of 60 kVpk/mm at 50 Hz ac condition were also conducted. In order to investigate the effect of degassing on space charge distributions in samples under ac stress, both as-received and degassed, were used in this study.
Keywords :
XLPE insulation; charge measurement; pulsed electroacoustic methods; space charge; 1 Hz; 10 Hz; 220 micron; 24 h; 50 Hz; AC electric stress; PEA; XLPE; degassing; polyethylene; pulsed electroacoustic method; space charge distributions; Aging; Charge measurement; Current measurement; Polyethylene; Pulse amplifiers; Pulse measurements; Pulsed electroacoustic methods; Space charge; Stress; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2004. CEIDP '04. 2004 Annual Report Conference on
Print_ISBN :
0-7803-8584-5
DOI :
10.1109/CEIDP.2004.1364193
