Title :
Factor of space charge generation in XLPE under DC electric field of 20 kV/mm
Author :
Takeda, T. ; Hozumi, N. ; Suzuki, H. ; Okamoto, T.
Author_Institution :
Central Res. Inst., Electr. Power Ind., Kanagawa, Japan
Abstract :
The single influence and multiple effects of an antioxidant, semiconducting electrodes and acetophenone (a cross-linking residual) on hetero space charge accumulation are discussed. The hetero space charges were found to be generated in XLPE samples which contain both acetophenone and antioxidant and/or semiconducting-layer material heat treated at high temperature (150°C). It was suggested that the hetero space charges were formed when impurities such as antioxidant dissociate thermally with the help of acetophenone and the dissociated species were attracted toward both electrodes by an applied DC voltage
Keywords :
XLPE insulation; heat treatment; impurities; space charge; 150 C; DC electric field; XLPE; acetophenone; antioxidant; cross-linking residual; hetero space charge accumulation; high temperature heat treatment; semiconducting electrodes; space charge generation; space charge profiles; thermal dissociation; Charge measurement; Current measurement; DC generators; Electrodes; Heat treatment; Insulation; Semiconductivity; Space charge; Space heating; 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.1997.617547
