气室环境保护型1100kV GIL HSGS破断过程流体特性数值计算与分析

Shi Liu, Xin Lin, Xiaohui Duan, Yongqi Yao, Shengwu Tan, Jia Zhang, Zhenxin Geng
{"title":"气室环境保护型1100kV GIL HSGS破断过程流体特性数值计算与分析","authors":"Shi Liu, Xin Lin, Xiaohui Duan, Yongqi Yao, Shengwu Tan, Jia Zhang, Zhenxin Geng","doi":"10.1109/ICHVE49031.2020.9279448","DOIUrl":null,"url":null,"abstract":"The environmentally friendly C<inf>4</inf>F<inf>7</inf>N gas and its feasibility of application in switchgear are one of the hot spots in the field of electrical engineering. In this paper, a two-dimensional dynamic calculation model for 1100kV GIL high speed grounding switch(HSGS) was established based on the theory of fluid dynamics for the opening process of 1100kV GIL HSGS. By changing the type of C<inf>4</inf>F<inf>7</inf>N mixed gas in the gas chamber, the proportion of C<inf>4</inf>F<inf>7</inf>N and the basic pressure in the gas chamber, the finite element method was used to carry out arc simulation calculation on the model and the pressure, temperature and density changes of the mixed gas in the gas chamber of the HSGS were obtained. The study analyzed the effects of C<inf>4</inf>F<inf>7</inf>N mixed gas type, C<inf>4</inf>F<inf>7</inf>N ratio and base pressure of gas chamber on the arcing characteristics of HSGS. The calculation results show that increasing the pressure and the proportion of C<inf>4</inf>F<inf>7</inf>N can enhance the arc blowing effect, effectively reduce the arc channel temperature, and increase the arc channel density during arcing; Comparing the three C<inf>4</inf>F<inf>7</inf>N mixed gases, C<inf>4</inf>F<inf>7</inf>N/CO<inf>2</inf> has the lowest arcing temperature, and the strongest arc blowing effect and the highest arc density when C<inf>4</inf>F<inf>7</inf>N accounts for 5% and 9%. When the proportion of C<inf>4</inf>F<inf>7</inf>N is 13% and 20%, C<inf>4</inf>F<inf>7</inf>N/N<inf>2</inf> arc temperature is higher. Moreover, it has the strongest arc blowing effect and higher arc path density. C<inf>4</inf>F<inf>7</inf>N/Air has the highest arcing temperature, its blowing effect and arc channel density are lower than the other two mixed gases. The results can lay a theoretical foundation for the research of C<inf>4</inf>F<inf>7</inf>N mixed gas in arc extinction.","PeriodicalId":6763,"journal":{"name":"2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE)","volume":"354 1","pages":"1-4"},"PeriodicalIF":0.0000,"publicationDate":"2020-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Numerical Calculation and Analysis of Fluid Characteristics of Gas Chamber Environmental Protection Type 1100kV GIL HSGS during Breaking Process\",\"authors\":\"Shi Liu, Xin Lin, Xiaohui Duan, Yongqi Yao, Shengwu Tan, Jia Zhang, Zhenxin Geng\",\"doi\":\"10.1109/ICHVE49031.2020.9279448\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The environmentally friendly C<inf>4</inf>F<inf>7</inf>N gas and its feasibility of application in switchgear are one of the hot spots in the field of electrical engineering. In this paper, a two-dimensional dynamic calculation model for 1100kV GIL high speed grounding switch(HSGS) was established based on the theory of fluid dynamics for the opening process of 1100kV GIL HSGS. By changing the type of C<inf>4</inf>F<inf>7</inf>N mixed gas in the gas chamber, the proportion of C<inf>4</inf>F<inf>7</inf>N and the basic pressure in the gas chamber, the finite element method was used to carry out arc simulation calculation on the model and the pressure, temperature and density changes of the mixed gas in the gas chamber of the HSGS were obtained. The study analyzed the effects of C<inf>4</inf>F<inf>7</inf>N mixed gas type, C<inf>4</inf>F<inf>7</inf>N ratio and base pressure of gas chamber on the arcing characteristics of HSGS. The calculation results show that increasing the pressure and the proportion of C<inf>4</inf>F<inf>7</inf>N can enhance the arc blowing effect, effectively reduce the arc channel temperature, and increase the arc channel density during arcing; Comparing the three C<inf>4</inf>F<inf>7</inf>N mixed gases, C<inf>4</inf>F<inf>7</inf>N/CO<inf>2</inf> has the lowest arcing temperature, and the strongest arc blowing effect and the highest arc density when C<inf>4</inf>F<inf>7</inf>N accounts for 5% and 9%. When the proportion of C<inf>4</inf>F<inf>7</inf>N is 13% and 20%, C<inf>4</inf>F<inf>7</inf>N/N<inf>2</inf> arc temperature is higher. Moreover, it has the strongest arc blowing effect and higher arc path density. C<inf>4</inf>F<inf>7</inf>N/Air has the highest arcing temperature, its blowing effect and arc channel density are lower than the other two mixed gases. The results can lay a theoretical foundation for the research of C<inf>4</inf>F<inf>7</inf>N mixed gas in arc extinction.\",\"PeriodicalId\":6763,\"journal\":{\"name\":\"2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE)\",\"volume\":\"354 1\",\"pages\":\"1-4\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-09-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICHVE49031.2020.9279448\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE International Conference on High Voltage Engineering and Application (ICHVE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICHVE49031.2020.9279448","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

C4F7N气体的环保性及其在开关柜中的应用可行性是电气工程领域的研究热点之一。本文基于流体动力学理论,建立了1100kV GIL高速接地开关(HSGS)开闸过程的二维动力学计算模型。通过改变气室内C4F7N混合气体的种类、C4F7N的比例和气室内基本压力,采用有限元法对模型进行电弧模拟计算,得到了HSGS气室内混合气体的压力、温度和密度变化情况。研究分析了C4F7N混合气体类型、C4F7N比和气室底压对HSGS电弧特性的影响。计算结果表明,提高吹弧压力和C4F7N的掺量可以增强吹弧效果,有效降低电弧通道温度,增加电弧通道密度;对比三种C4F7N混合气体,C4F7N/CO2在C4F7N含量为5%和9%时起弧温度最低,吹弧效果最强,电弧密度最高。当C4F7N含量为13%和20%时,C4F7N/N2电弧温度较高。同时具有最强的吹弧效果和较高的弧径密度。C4F7N/Air的起弧温度最高,其吹弧效果和电弧通道密度均低于其他两种混合气体。研究结果可为C4F7N混合气体灭弧研究奠定理论基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Numerical Calculation and Analysis of Fluid Characteristics of Gas Chamber Environmental Protection Type 1100kV GIL HSGS during Breaking Process
The environmentally friendly C4F7N gas and its feasibility of application in switchgear are one of the hot spots in the field of electrical engineering. In this paper, a two-dimensional dynamic calculation model for 1100kV GIL high speed grounding switch(HSGS) was established based on the theory of fluid dynamics for the opening process of 1100kV GIL HSGS. By changing the type of C4F7N mixed gas in the gas chamber, the proportion of C4F7N and the basic pressure in the gas chamber, the finite element method was used to carry out arc simulation calculation on the model and the pressure, temperature and density changes of the mixed gas in the gas chamber of the HSGS were obtained. The study analyzed the effects of C4F7N mixed gas type, C4F7N ratio and base pressure of gas chamber on the arcing characteristics of HSGS. The calculation results show that increasing the pressure and the proportion of C4F7N can enhance the arc blowing effect, effectively reduce the arc channel temperature, and increase the arc channel density during arcing; Comparing the three C4F7N mixed gases, C4F7N/CO2 has the lowest arcing temperature, and the strongest arc blowing effect and the highest arc density when C4F7N accounts for 5% and 9%. When the proportion of C4F7N is 13% and 20%, C4F7N/N2 arc temperature is higher. Moreover, it has the strongest arc blowing effect and higher arc path density. C4F7N/Air has the highest arcing temperature, its blowing effect and arc channel density are lower than the other two mixed gases. The results can lay a theoretical foundation for the research of C4F7N mixed gas in arc extinction.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Excellent electrical properties of zinc-oxide varistors by tailoring sintering process for optimizing line-arrester configuration Research of Short Air Gap Flashover Characteristic with Water Droplets Pattern Recognition of Development Stage of Creepage Discharge of Oil-Paper Insulation under AC-DC Combined Voltage based on OS-ELM Study on the PD Creeping Discharge Development Process Induced by Metallic Particles in GIS A Novel Fabry-Perot Sensor Mounted on External Surface of Transformers for Partial Discharge Detection
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1