Research on safety protection for live working on ±800kV DC transmission line with AC and DC multi-circuit transmission lines

3rd International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Xie, Yan^1 ; Xiang, Tao^2 ; Li, Mu^3

School of Electrical and Electronic Engineering, Wuhan Polytechnic University, Wuhan

430048, China^1

Wuhan Electric Power Supply Company of State Grid, Wuhan

430015, China^2

Wuhan Nari Limited Liability Company, State Grid Electric Power Research Institute, Wuhan

430074, China^3

关键词: DC transmission lines;    Distribution characteristics;    Electric field intensities;    Electric field strength;    Multi-circuit transmission lines;    Parallel transmission lines;    Protective equipment;    Single circuit transmission line;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/61/1/012141/pdf
DOI  :  10.1088/1755-1315/61/1/012141

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In recent years, in order to save line corridors and reduce the scope of demolition, some new transmission modes for high voltage AC and DC power transmission line are proposed. According to the characteristics of the parallel transmission line, this paper studies the distribution characteristics of the electric field intensity of multi circuit parallel transmission lines and the single circuit transmission line. Comparing and analysing the simulation results of the electric field strength, the safety measures for live working of ±800kV DC transmission line with multi circuit parallel transmission lines is put forward. That is the electric field protective equipment and measures used in the live line work of the ±800kV UHDC single circuit line can meet the requirements of the live operation of the ±800kV UHDC multi-circuit transmission line.