电瓷避雷器Issue(6)：165-171,7.DOI:10.16188/j.isa.1003-8337.2023.06.019
330kV输电线路断路器取消合闸电阻适应性研究
Adaptability of Cancellation of the Closing Resistance of Circuit Breaker for 330 kV Transmission Line
杨瑞 1张航 1张广东 1刘康 1王翼虎 1高立超1
作者信息
- 1. 国网甘肃省电力公司电力科学研究院,兰州 730070
- 折叠
摘要
Abstract
The power grid planning in the new era has resulted in the gradual shortening of the main transmission line distance.Therefore,it is necessary to carry out the analysis on the influence of the short-distance closing resistance on the line overvoltage control to improve the reliability of power supply.In this paper,combined with the actual data of the Northwest Power Grid,based on the PSCAD electromag-netic transient calculation,the 330 kV transmission line's function law and commissioning strategy of the closing resistance under different distances and different working conditions are simulated and analyzed.By modeling the lines,towers,arresters,and circuit breakers,the effect of the operating status of the closing resistors on the operating overvoltage of the lines with different distances under different configura-tions of closing resistors and arresters are studied.A strategy to limit the operating overvoltage of 330 kV transmission lines with different distances is obtained,providing certain reference suggestions for the a-daptability of 330 kV short-distance transmission lines to cancel the closing resistance.关键词
合闸电阻/避雷器/单相重合闸/合空线/操作过电压Key words
closing resistance/lightning arrester/single-phase reclosing/closing line/operating over-voltage引用本文复制引用
杨瑞,张航,张广东,刘康,王翼虎,高立超..330kV输电线路断路器取消合闸电阻适应性研究[J].电瓷避雷器,2023,(6):165-171,7.
