高电压技术2017，Vol.43Issue(10)：3149-3153,5.DOI:10.13336/j.1003-6520.hve.20170925002
±1100kV特高压直流输电线路带电作业电位转移特性
Transient Characteristics of Potential Transfer of Live Working on ± 1100 kV UHVDC Transmission Line
摘要
Abstract
To research potential transfer of live working on ±1 100 kV UHV transmission line,on the basis of the multi conductor system lumped capacitance matrix theory,we established a transient response model of the transfer potential calculation,and calculated and analyzed the relationship between the distances and different metastatic potential of the human body,the discharge current,and energy.The analysis results show that the human potential,discharge current,and energy are proportional to the transfer distance in numerical value;the transfer of the body and the pole after 1 μts can achieve the equipotential,and the transfer distance only affects the amplitude of the human body and the effect of the equipotential velocity is not obvious;the optimal transfer distance of the integrated partial discharge current and the potential transfer current is 0.4～0.5 m;the energy release is proportional to the transfer distance,when the distance is 0.4 m and 0.5 m,the release energy is about 1.19 J and 1.39 J.In the course of the operation,we should pay attention to the problem of local temperature rise shielding clothing.关键词
±1100 kV/带电作业/人体电位/放电电流/能量Key words
±1100 kV/live working/human potential/discharge current/energy引用本文复制引用
刘夏清,李稳,姜赤龙,邹德华,牛捷,刘从法..±1100kV特高压直流输电线路带电作业电位转移特性[J].高电压技术,2017,43(10):3149-3153,5.基金项目
国家电网公司科技项目(5216AD14000J).Project supported by Science and Technology Project of SGCC(5216AD14000J). （5216AD14000J）
