中国电机工程学报Issue(27)：4717-4723,7.DOI:10.13334/j.0258-8013.pcsee.2014.27.019
特高压直流V型复合绝缘子串悬挂点伸入塔身应用研究
Research on Application of UHVDC V-type Composite Insulator String Extended to Tower Body
毛艳 1丁玉剑 1王晰 1张学军1
作者信息
- 1. 中国电力科学研究院，北京市 海淀区 100192
- 折叠
摘要
Abstract
If V-type composite insulator string extends to tower body for ±800 kV UHV DC lines, it will bring various technical problems. To solve these problems, this paper carried out the study of the electric field calculation and stress characteristics, impulse discharge characteristics of tower head air gaps and live working analysis. The research shows that, after V-type composite insulator string extends to tower body about 2.0 m, the maximum electric field strength of grading rings and composite insulators can meet the control requirements;the effect on impulse flashover characteristics of tower head air gaps is not obvious; live working operators in and out of the area of high electric field can choose hanging from polar conductors up to high electric field region. The proposal of V-type composite insulator string hanging point into the tower body for ±800 kV UHV DC transmission lines is feasible. The research results can provide relevant technical basis for subsequent UHVDC project design and construction.关键词
特高压直流/V型复合绝缘子串/塔身/电场/空气间隙/放电特性/带电作业Key words
UHVDC/V-type composite insulator string/tower body/electrical field/air clearance/flashover characteristic/live working分类
信息技术与安全科学引用本文复制引用
毛艳,丁玉剑,王晰,张学军..特高压直流V型复合绝缘子串悬挂点伸入塔身应用研究[J].中国电机工程学报,2014,(27):4717-4723,7.
