Title :
Effect of byproducts of dicumyl peroxide on space charge formation in low-density polyethylene
Author :
Hirai, Naoshi ; Minami, R. ; Shibata, K. ; Ohki, Y. ; Okashita, M. ; Maeno, T.
Author_Institution :
Waseda Univ., Tokyo, Japan
Abstract :
For DC transmission, crosslinked polyethylene (XLPE) cables are still under feasibility study due to severe concern about space charge. In the bulk of XLPE insulated cables, there remain liquid chemicals such as acetophenone, a-methylstyrene, and cumylalcohol. We have examined the effects of these remaining chemicals on the space charge evolution in low-density polyethylene (LDPE). The most important conclusion obtained is that acetophenone and a-methylstyrene in LDPE assist the carrier transport, while cumylalcohol. traps the carriers
Keywords :
environmental degradation; polyethylene insulation; power cable insulation; space charge; DC transmission; Maxwell stress; XLPE insulated cables; acetophenone; alpha-methylstyrene; carrier transport; cumylalcohol; dicumyl peroxide byproduct effects; liquid chemicals; low-density polyethylene; negative charges; permittivity difference; positive charges; short-circuited condition; space charge evolution; Cables; Cathodes; Charge measurement; Chemicals; Current measurement; Polyethylene; Pulse measurements; Pulsed electroacoustic methods; Space charge; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2001 Annual Report. Conference on
Conference_Location :
Kitchener, Ont.
Print_ISBN :
0-7803-7053-8
DOI :
10.1109/CEIDP.2001.963585
