550 kV GIS用三工位隔离开关开合母线转换电流研究
朱传运，黄坤鹏，薛红涛，黄鑫，李伟强
（河南平高电气股份有限公司，河南 平顶山 467001）
摘 要：开发了550 kV GIS用三工位隔离开关，通过对开断过程中绝缘配合设计，预判放电通道，保证电弧仅在抗烧蚀能力强的动、静弧触头之间燃烧。型式试验后样机的烧蚀工况分析表明，通过提高隔离开关分合闸速度，避免了开合过程中出现的电弧漂移现象，通过对电弧燃烧时间长短及分散性统计，合理解释了分、合闸速度对电弧漂移的影响，验证了所设计的三工位隔离开关的合理性。
关键词：隔离开关；母线转换电流；绝缘设计
中图分类号：TM564.1 文献标识码：A 文章编号：1007-3175(2019)06-0021-03
Research on Bus-Transfer Current of Three-Working-Position Disconnector Equiped in 550 kV GIS
ZHU Chuan-yun, HUANG Kun-peng, XUE Hong-tao, HUANG Xin, LI Wei-qiang
（Henan Pinggao Electric Co., Ltd, Pingdingshan 467001, China）
Abstract: The three-working-position disconnector equipped in 550 kV GIS was developed. The discharge path could be predicated by the insulation coordination design in the breaking course, to ensure that the arc only burnt between the moving and fixed contact with high erosion resistance ability. The ablation working condition of prototype after type test shows that the arc shift phenomenon could be avoided in the breaking and making course by improving the speed of disconnector’s breaking and making, and the impacts of its speed on the arc shift was explained reasonably by the statistics of arcing time length and its dispersibility, which verifies the rationality of the designed three-working-position disconnector.
Key words: disconnector; bus-transfer current; insulation design
参考文献
[1] 贾志杰，甘德刚，李晶.±500 kV气体绝缘金属封闭输电线路绝缘尺寸设计[J]. 电网技术，2011，35(8)：192-196.
[2] 施卫华， 阮宁晖， 王进. 高压开关电器的发展及应用[J]. 昆明冶金高等专科学校学报，2005，21(5)：45-51.
[3] 范广伟，樊楚夫，黄实，等. 气体绝缘隔离开关开合母线转换电流试验的分析[J]. 高压电器，2017，53(4)：215-219.
[4] 裴峰，蔡艺云. 隔离开关开合母线电流转换能力分析[J]. 机电工程技术，2015，44(9)：134-137.
[5] 李广山. GIS中隔离开关开合母线转换电流能力的分析[J]. 高压电器，2002，38(1)：57-59.
