Calculation and Structure Optimization of Electric Field Distribution of The 10kV Solid-sealed Polar Pole

As one of the core modules of the ring - net switch cabinet, the solid-sealed polar pole was used to seal the three-station isolation ground switch and vacuum arcing chamber together. The electric equipment was concentrated, which was prone to electric field distortion. In this paper, a three-dimens...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2022-04, Vol.2246 (1), p.12035
Main Authors: Wang, Shuo, Xuan, Yingying, Lu, Yu, Zhang, Yan, Zheng, Ziyao, Zhang, Ji
Format: Article
Language:English
Subjects:
Chambers
Control rods
Diameters
Electric contacts
Electric equipment
Electric fields
Electrical distortion
Finite element method
Optimization
Physics
Three dimensional models
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:As one of the core modules of the ring - net switch cabinet, the solid-sealed polar pole was used to seal the three-station isolation ground switch and vacuum arcing chamber together. The electric equipment was concentrated, which was prone to electric field distortion. In this paper, a three-dimensional simulation model was established based on the drawings of the solid-sealed polar pole. The electric field distribution under the initial structure was calculated based on the finite element method, and it was optimized by adjusting the thickness of the moving contact and epoxy layer, changing the radius of the metal pull rod in the control mechanism and adding the equalizing ring on the shell surface. The results showed that when the inner diameter of the moving contact was 20mm, the outer diameter of the air layer was 43mm, and the radius of the metal tie rod in the control mechanism was 18mm, the field intensity in the solid-sealed polar pole was relatively reasonable, but the maximum E-field intensity in the arc-extinguishing chamber gap between the contacts was up to 5041V/mm. It was necessary to carry out pressure withstand test to ensure insulation safety. The results of this paper could provide reference for the optimal design of the solid-sealed polar pole.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2246/1/012035