Partial Discharge Activities under AC/Impulse Superimposed Voltage in LN2/Polypropylene Laminated Paper Insulation System for HTS Cables

被引：5
|
作者：
Hayakawa, N. [1 ]
Yamaguchi, R. [2 ]
Ukai, Y. [2 ]
Kojima, H. [1 ]
Endo, F. [1 ]
Okubo, H. [2 ]
机构：
[1] Nagoya Univ, EcoTopia Sci Inst, Nagoya, Aichi 4648603, Japan
[2] Nagoya Univ, Dept Elect Engn & Comp Sci, Nagoya, Aichi 4648603, Japan
来源：
9TH EUROPEAN CONFERENCE ON APPLIED SUPERCONDUCTIVITY (EUCAS 09) | 2010年 / 234卷
关键词：
ELECTRICAL INSULATION; INCEPTION; PROJECT;
D O I：
10.1088/1742-6596/234/3/032020
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
This paper discusses electrical insulation characteristics of high temperature superconducting (HTS) cables for their reliable and rational insulation design. We focused on a severe and practical operational condition of HTS cables, i.e. under commercial ac / lightning impulse superimposed voltage. Experimental results for a HTS cable insulation model composed of liquid nitrogen (LN2) and polypropylene (PP) laminated paper revealed that ac / impulse superimposed voltage could trigger partial discharge (PD) by the impulse voltage invasion and cause consecutive PD under the subsequent ac voltage. The PD generation characteristics were summarized for different ac / impulse superimposed voltages, and a criterion for consecutive PD generation was identified.
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页数：6
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