Dielectric characteristics of HTS cables based on partial discharge measurement
Dielectric characteristics of HTS cables based on partial discharge measurement
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基于局部放电测量的高温超导电缆介电特性
DOI：
10.1109/tasc.2005.849292
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发表时间：
2005
影响因子：
1.8
通讯作者：
H. Okubo
中科院分区：
文献类型：
--
作者：
N. Hayakawa;M. Nagino;H. Kojima;M. Goto;T. Takahashi;K. Yasuda;H. Okubo
讨论了液氮(LN/sub 2/)/聚丙烯（PP）层压纸复合绝缘体系的介电特性，用于高温超导电缆的实际电绝缘设计。针对局部放电的起始特性和机理，在常压和加压条件下，研究了体积效应及其饱和度对局部放电起始电场强度（PDIE）的影响。利用电光放电测量系统研究了雷电冲击电压下的放电启动特性，并与交流电压下的放电启动特性进行了比较。
We have discussed dielectric characteristics of liquid nitrogen (LN/sub 2/)/polypropylene (PP) laminated paper composite insulation system for the practical electrical insulation design of high temperature superconducting (HTS) cables. Focusing on the partial discharge (PD) inception characteristics and mechanism, the volume effect and its saturation on PD inception electric field strength (PDIE) was evaluated at atmospheric and pressurized condition. PD inception characteristics under lightning impulse voltage application were also investigated using an electrical and optical PD measuring system, and compared with those under ac voltage application.