Fluorinated epoxy insulator with interfacial conductivity graded material for HVDC gaseous insulated pipeline

被引：18
作者：
Du, B. X. [1 ]
Ran, Z. Y. [1 ]
Li, J. [1 ]
Liang, H. C. [1 ]
Yao, H. [1 ]
机构：
[1] Tianjin Univ, Sch Elect & Informat Engn, Educ Minist, Key Lab Smart Grid, Tianjin 300072, Peoples R China
来源：
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2020年 / 27卷 / 04期
基金：
中国国家自然科学基金;
关键词：
DC GIL; epoxy insulator; electric field distortion; continuous SFGM; surface fluorination; flashover voltage; SURFACE-CHARGE; SOLID INSULATOR; DC; FLASHOVER; SPACER; FABRICATION; SIMULATION; VOLTAGE; DESIGN; FGM;
D O I：
10.1109/TDEI.2020.008761
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：
In this paper, a novel procedure is put forward to fabricate epoxy insulators with surface functionally graded material (SFGM) with optimized surface conductivity as obtained from the field non-uniformity and the leakage current. For fabrication, a temperature control system is employed to form a spatial temperature gradient, thus regulating fluorination from top to bottom of the insulator surface. Flashover tests are reported under DC voltage, and with DC voltage with polarity reversal; the results show the effectiveness of the SFGM to improve the performance of the insulator. A trap distribution and carrier transport model are utilized to analyze the improved flashover characteristics.
引用
收藏
页码：1305 / 1312
页数：8
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