TY - GEN
T1 - Breakdown Strength and Electrical Tree in Homo-Crosslinked-Polyethylene Bilayer
AU - Shi, Xiaoning
AU - Li, Wenpeng
AU - Zhang, Meng
AU - Chen, Xin
AU - Zhang, Chong
AU - Zhao, Wei
AU - Zhong, Lisheng
AU - Gao, Jinghui
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - The return insulation structure of submarine cable factory joint can be simplified as homo-crosslinked-polyethylene (H-XLPE) bilayer, and its dielectric property under power frequency is the key to the offshore alternating current (AC) electric field transmission system. This paper focuses on the AC breakdown field strength and electrical tree of H-XLPE bilayer insulation by using the power frequency high voltage generator and relevant electrode system. The results show that overall AC breakdown field strength of H-XLPE is lower than that of XLPE. The electrical branches diverge obviously in H-XLPE bilayer, which is not existence in XLPE under the same conditions. There is a homo-junction region in H-XLPE bilayer, which is acted as an electrical tree initiation, then this region would reduce the withstand voltage performance further. This study indicates the effect of H-XLPE bilayer on the factory joint return insulation, which should be fully taken into account in the design of AC submarine cable accessories.
AB - The return insulation structure of submarine cable factory joint can be simplified as homo-crosslinked-polyethylene (H-XLPE) bilayer, and its dielectric property under power frequency is the key to the offshore alternating current (AC) electric field transmission system. This paper focuses on the AC breakdown field strength and electrical tree of H-XLPE bilayer insulation by using the power frequency high voltage generator and relevant electrode system. The results show that overall AC breakdown field strength of H-XLPE is lower than that of XLPE. The electrical branches diverge obviously in H-XLPE bilayer, which is not existence in XLPE under the same conditions. There is a homo-junction region in H-XLPE bilayer, which is acted as an electrical tree initiation, then this region would reduce the withstand voltage performance further. This study indicates the effect of H-XLPE bilayer on the factory joint return insulation, which should be fully taken into account in the design of AC submarine cable accessories.
KW - AC breakdown field strength
KW - electrical tree
KW - factory joint return insulation
KW - homo-crosslinked-polyethylene bilayer
UR - https://www.scopus.com/pages/publications/85145879300
U2 - 10.1109/CEIDP55452.2022.9985292
DO - 10.1109/CEIDP55452.2022.9985292
M3 - 会议稿件
AN - SCOPUS:85145879300
T3 - Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
SP - 254
EP - 257
BT - CEIDP 2022 - 2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2022
Y2 - 30 October 2022 through 2 November 2022
ER -