摘要详情

ID / 提交时间

91 / 2024-04-11 16:55:14

标题

Structural Optimization of Shielding Cover For 24kV and 72.5kV Vacuum Interrupters

关键字

Vacuum Interrupter,Finite Element Analysis,Shield,Bellows Shield Cover,Insulation Optimization

主题及专题

1)Emerging HV Switching Technologies

状态

终稿

作者

Zhongqing Sang / Xiamen University of Technology

Yan Zhang / Xiamen University Of Technology

Yimin You / Xiamen University of Technology

Dongyun Dai / Xiamen University of Technology

Yuan ting Tu / Xia Men university of technology

Xu Wang / Xiamen University of Technology

摘要

Vacuum interrupters are widely used in power transmission and distribution systems, vacuum interrupters factory test inspection, some products will appear insulation breakdown phenomenon, resulting in a decline in the overall yield rate. Therefore, this paper is aimed at improving the insulation performance of vacuum interrupter this problem to carry out in-depth research. This paper adopts the finite element analysis method to carry out electric field simulation calculations, through the establishment of a 3D model of the 24kV spiral groove contact vacuum interrupter chamber, insulation optimization of the internal structure of the vacuum interrupter chamber, it can be obtained that the vacuum interrupter chamber overall electric field strength with the reduction of the length of the main shielding cover, the overall electric field strength with the main shielding cover edge of the outward turning angle of the decrease in the decrease; 72.5kV cup-shaped contact vacuum interrupter using finite element analysis method, change the length of the bellows shield cover for electric field strength simulation calculation. According to the simulation results, the electric field strength at the wave crest gradually decreases with the increase of the length of the bellows shield cover. It is concluded that the length of the main shielding cover of the vacuum interrupter, the angle of turning out of the edge of the main shielding cover, and the length of the bellows shield cover have an important influence on the insulation performance of the vacuum interrupter.