T pattern fuse construction in segment metallized film capacitors based on self-healing characteristics

被引:22
作者
Li, Haoyuan [1 ]
Li, Hua [1 ]
Li, Zhiwei [1 ]
Lin, Fuchang [1 ]
Liu, De [1 ]
Wang, Wenjuan [1 ]
Wang, Bowen [1 ]
Xu, Zhijian [1 ]
机构
[1] Huazhong Univ Sci & Technol, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Hubei, Peoples R China
基金
中国国家自然科学基金;
关键词
Metallized polypropylene film capacitor; Segment metallized film; Fuse; Self-healing; Self-healing failure; Simulation; DIELECTRIC-BREAKDOWN;
D O I
10.1016/j.microrel.2015.03.006
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
The breakdown happens in metallized polypropylene film (MPPF) capacitor can be classified into two cases: the first one is self-healing, which means that the insulation will recover after the breakdown; the other one is self-healing failure, which means that the capacitor will fail because of short-circuit fault. In this paper, the MPPF capacitor applied in DC filtering which adopt the T pattern segment film technology is investigated. To simulate the two cases mentioned above, a model based on self-healing experiment data is built by Power Systems Computer Aided Design (PSCAD). The current density flowing through the fuse and fuse energy is calculated and analyzed. Meanwhile, the fuse burn-out criteria are investigated according to electrical explosion theory and phase transition energy of segment metallized film fuse. The fuse design methodology of T pattern segment film is presented and a design case is provided. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:945 / 951
页数:7
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