高电压技术2013，Vol.39Issue(1)：31-36,6.DOI:10.3969/j.issn.1003-6520.2013.01.005
35kV超导电缆终端电流引线的绕包型绝缘设计
Lapping Insulation Design of Termination Current Lead for 35 kV Superconducting Cable
摘要
Abstract
Most of current leads adopt the solid insulation design. We designed a lapping insulation of termination current lead for 35 kV superconducting cable to improve insulation of the leads. Laminated polypropylene paper (LPP) ,which has good electrical property and mechanical characteristic under cryogenic conditions, was selected as the lapping insulation material of current leads. Then, aluminum foils were placed between the layers of polytetrafluoroethylene film with equal intervals to improve the electrical field distribution in current leads. Through calculation and simulation analysis, it is concluded that setting 4 layers of aluminum foil has the best effect. With electrical tests, electrical property of the proposed current lead under voltage of 35 kV is proved to meet the related electric requirements. The lapping insulation design of current lead has two prominent characteristics: the insulation lagging could sustain sudden cooling without cracking; the radial and axial electrical field and the anti-aging property are improved and the breakdown voltage is increased.关键词
高温超导(HTS)电缆终端/电流引线/绕包型绝缘/聚丙烯层压纸(LPP)/电容分压/电气性能Key words
termination of high-temperature superconductor ( HTS) cable/ current lead/ lapping insulation/ laminated polypropylene paper( LPP)/ dividing voltage by capacitance/ electrical characteristics引用本文复制引用
杨鑫,李卫国,郭昱延,黄晓华,张宏杰,魏斌..35kV超导电缆终端电流引线的绕包型绝缘设计[J].高电压技术,2013,39(1):31-36,6.基金项目
国家高技术研究发展计划(863计划)(2009AA03Z209). （863计划）
