Charge Accumulation/Decumulation on DC-GIS Spacer under 10,000-hour DC Field Application

被引：4
|
作者：
Shimakawa, Hajime [1 ]
Kumada, Akiko [1 ]
Hidaka, Kunihiko [1 ]
Yasuoka, Takanori [2 ]
Hoshina, Yoshikazu [2 ]
Shiiki, Motoharu [2 ]
机构：
[1] Univ Tokyo, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan
[2] Toshiba Energy Syst & Solut Corp, Kawasaki Ku, 2-1 Ukishima Cho, Kawasaki, Kanagawa 2100862, Japan
来源：
PROCEEDINGS OF THE 2020 3RD IEEE INTERNATIONAL CONFERENCE ON DIELECTRICS (ICD 2020) | 2020年
关键词：
D O I：
10.1109/ICD46958.2020.9341834
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Surface charges on an insulating epoxy spacer in DC-GIS under high DC electric field lead to decrease breakdown voltage on the spacer, but charge accumulation phenomena of insulators are not clear in detail. In this paper, surface charge distributions on the epoxy model spacer were measured under DC-GIS simulated environment during the DC voltage application for 10,000 hours and the short circuit for 2400 hours. The saturation tendency of charge accumulation in which only the homo-charges develop concentrically near the electrodes was obtained. The time constant of charge accumulation below 20 degrees C agreed with the theoretical value calculated from the equivalent circuit. Surface charge characteristics with irregular charge, the ones during charge decumulation, and the relationship between charging saturation tendency and temperature were also obtained.
引用
收藏
页码：455 / 458
页数：4
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