现代电力2012，Vol.29Issue(1)：20-23,4.
1000kV交流复合绝缘子串电场分布计算及均压环设计
Electric Field Distribution Calculation and Grading Rings Design of 1000kV AC Composite Insulator
李亚莎 1张专专1
作者信息
- 1. 三峡大学电气与新能源学院,湖北宜昌 443002
- 折叠
摘要
Abstract
The structural characteristics of 1000kV composite insulator result the high non-uniform of the potential distribution, so the high electric field area near the high-voltage terminal of metal fitting will generate corona discharge on the surface of insulating medium and metal fitting. To improve electric field distribution by designing grading ring has important significance for the operation security of transmission lines. In this paper, ANSYS finite element software is used to establish a 3-D model of 1000kV composite insulator, the electric field intensity distribution and voltage distribution on the surface of the composite insulator are calculated in cases of insulator with and without grading ring. The influences of position, ring radius and radius of the ring tube of the big and small grading ring on electric field intensity on the surface of composite insulator are analyzed, and the optimal position and structure parameters of grading ring are determined. The calculation results show that the maximum electric field intensity on the surface of grading ring, metal fitting at high voltage terminal and the insulator protection sheath will meet the requirements.关键词
复合绝缘子/均压环/ANSYS/电场强度/电位分布Key words
composite insulator/ grading ring/ ANSYS/ e-lectric field intensity/ voltage distribution分类
信息技术与安全科学引用本文复制引用
李亚莎,张专专..1000kV交流复合绝缘子串电场分布计算及均压环设计[J].现代电力,2012,29(1):20-23,4.
