Title :
Study on time lag of void discharge in epoxy resin by considering attenuation of X-ray irradiation dose
Author :
Hayashi, Mariko ; Takada, Hiroaki ; Kozako, Masahiro ; Hikita, Masayuki ; Nakamura, Shigenari ; Umemura, Tokihiro ; Higashiyama, Masakazu
Author_Institution :
Kyushu Inst. of Technol., Fukuoka, Japan
Abstract :
It is crucial for proper insulation design of cast resin transformer to consider voids and delamination which might exist in cast molding process and/or under long-term operation because of several surface boundaries between resin and conductor. Should such defects in the insulation system exist, it would lead to reduction of the life of the apparatus. In this report, we investigate X-ray irradiation induced discharge of spherical void in epoxy resin. Physical consideration of the effect of X-ray irradiation on void discharges in epoxy resin was also made. Time lag of void discharges in epoxy resin was also made with attenuation of X-ray irradiation dose considered.
Keywords :
X-ray effects; conductors (electric); delamination; discharges (electric); epoxy insulation; moulding; transformer insulation; voids (solid); X-ray irradiation dose; attenuation; cast molding process; cast resin transformer; conductor; delamination; epoxy resin; insulation design; long-term operation; spherical void; surface boundaries; time lag; void discharge; Attenuation; Copper; Discharges (electric); Epoxy resins; Partial discharges; Radiation effects; X-ray irradiation; partial discharge; time lag; void;
Conference_Titel :
Electrical Insulating Materials (ISEIM), Proceedings of 2011 International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-4-88686-074-3
DOI :
10.1109/ISEIM.2011.6826355
