Influence of Different Layout Methods on Artificial Pollution Flashover Characteristics of AC Insulator Strings

被引：0
|
作者：
Jiang X. [1 ]
Ren X. [1 ]
Han X. [1 ]
Hou L. [1 ]
Huang Y. [1 ]
机构：
[1] State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing
来源：
Ren, Xiaodong (xdrcqu@163.com) | 1600年 / China Machine Press卷 / 35期
关键词：
Artificial pollution; Electric field distribution; Flashover characteristics; Insulator string; Inverted T type;
D O I：
10.19595/j.cnki.1000-6753.tces.181855
中图分类号：
O441.1 [电学]; TM12 [];
学科分类号：
摘要：
The arrangement of insulator strings has an effect on its pollution flashover characteristics. A new arrangement of insulator strings-inverted T-type arrangement, is proposed in this paper. The electric field distribution is simulated and the pollution flashover characteristics are tested in an artificial climate chamber. The results show that the inverted T-type arrangement can greatly improve the flashover voltage of insulator string pollution, the highest pollution flashover voltage of insulator string under the “4+4” inverted T-type arrangement is up to 14.9%, and the flashover voltage of inverted T-type arrangement increases with the increase of the insulator number in the horizontal tensile part. The discharge process of inverted T-type insulator strings is different from that of normal suspension strings, that is, local arcs are produced at the high and low voltage ends of the suspension strings and develop to the middle, while it is difficult for the horizontal tension strings to produce arcs during discharge process. © 2020, Electrical Technology Press Co. Ltd. All right reserved.
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页码：896 / 905
页数：9
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