2011 1st International Conference on Electric Power Equipment - Switching Technology最新文献_第6页

Vacuum arc characters research on DC forcing interruption 直流强制中断真空电弧特性研究

2011 1st International Conference on Electric Power Equipment - Switching Technology Pub Date : 2011-10-01 DOI: 10.1109/ICEPE-ST.2011.6122940

B. Liu, Jianwen Wu, Liying Zhu, Yihang Sun

{"title":"Vacuum arc characters research on DC forcing interruption","authors":"B. Liu, Jianwen Wu, Liying Zhu, Yihang Sun","doi":"10.1109/ICEPE-ST.2011.6122940","DOIUrl":"https://doi.org/10.1109/ICEPE-ST.2011.6122940","url":null,"abstract":"In this paper, the characters of the vacuum arc parameters in 270V DC forcing interruption were investigated. In which we considered some factors, such as the forcing frequency, the rate of the current and voltage at zero passage (di/dt, dv/dt), the charging voltage of the commutation circuit capacity, and the current magnitude. The experiment was performed on a synthetic test circuit, which composed by the RC main current circuit, LC commutation circuit and a cup type AMF contactor, which electrodes' diameter is 66mm, and gap is 4mm and a plane one for miniaturization use. The experiment showed that with the forcing frequency increases (2.3 kHz, 3.1 kHz, and 4.2 kHz) and other factors the same, the forcing arc duration decreased obviously, and the rate of the di/dt raised. Meanwhile the peak of the arc overvoltage raise, the voltage noise get smooth, and the inverse arc current peak increase. In other experiments, we fixed the di/dt. Under the same circuit parameters, the current magnitude influenced the current and voltage peak value, And the charging voltage determine the arc duration. 3 types waveform for the failure interruption, and the di/dt-dv/dt characteristics was investigated. And finally compare the obviously difference of post-arc current between AMF and plane VI, The knowledge may guides us to optimize a smaller apparatus for utility use.","PeriodicalId":379448,"journal":{"name":"2011 1st International Conference on Electric Power Equipment - Switching Technology","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114698522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Chaotic analysis of High Voltage SF6 circuit breaker during breaking process Part I: Electric field chaos of the arc quenching chamber 高压SF6断路器分断过程混沌分析第一部分:灭弧室电场混沌

2011 1st International Conference on Electric Power Equipment - Switching Technology Pub Date : 2011-10-01 DOI: 10.1109/ICEPE-ST.2011.6122954

Xiaoming Liu, X. Leng, Yundong Cao, Yunxue Zhao, Zhengbo Li

引用次数: 1

An approach to diagnose pressure hazard of vacuum bulbs 真空灯泡压力危害的诊断方法

2011 1st International Conference on Electric Power Equipment - Switching Technology Pub Date : 2011-10-01 DOI: 10.1109/ICEPE-ST.2011.6122981

O. Yamamoto, H. Naruse, H. Morii

引用次数: 1

Isolation fault forecasting model for intelligent high voltage circuit breaker 智能高压断路器隔离故障预测模型

2011 1st International Conference on Electric Power Equipment - Switching Technology Pub Date : 2011-10-01 DOI: 10.1109/ICEPE-ST.2011.6122968

Yun Teng, Jianyuan Xu, Xin Lin

引用次数: 0

Numerical research on switching arc of circuit breaker 断路器开关电弧的数值研究

2011 1st International Conference on Electric Power Equipment - Switching Technology Pub Date : 2011-10-01 DOI: 10.1109/ICEPE-ST.2011.6123036

M. Rong, Yi Wu, Fei Yang, C. Niu, Ruiguang Ma

引用次数: 1

Study on the bifurcation of the shock wave in SF6 circuit breaker SF6断路器冲击波分岔的研究

2011 1st International Conference on Electric Power Equipment - Switching Technology Pub Date : 2011-10-01 DOI: 10.1109/ICEPE-ST.2011.6122960

Ying Han, Xiaoming Liu, Yuejun An, Yunxue Zhao, Liying Li

{"title":"Study on the bifurcation of the shock wave in SF6 circuit breaker","authors":"Ying Han, Xiaoming Liu, Yuejun An, Yunxue Zhao, Liying Li","doi":"10.1109/ICEPE-ST.2011.6122960","DOIUrl":"https://doi.org/10.1109/ICEPE-ST.2011.6122960","url":null,"abstract":"For studying the effect of the pressure on the breaking performance during the cold gas interruption of a SF6 circuit breaker (CB), 1D compressive gas flow field mathematical model was deduced by replacing the mass equation with the pressure equation based on the mathematic transformation. And the distribution of Mach number in gas flow field under different opening strokes were simulated using finite volume method (FVM), and the density, the pressure, the velocity, and the temperature distribution of the gas flow were obtained and especially the above gas flow parameter variations at the region of the shock wave formed have been calculated. And the fundamental solution of the equations describing the gas flow in the SF6 CB has been resolved using separation of variables method, and 1D differential equations with constant coefficient were derived. Based on the proposed model, the bifurcation diagrams at different opening strokes have been calculated. The results show that for the gas flow with different velocity, the system exhibits periodic, quasi-periodic or even chaotic behavior in the arc quenching chamber. And the instability of the shock wave may be one of the origins of the complex phenomena.","PeriodicalId":379448,"journal":{"name":"2011 1st International Conference on Electric Power Equipment - Switching Technology","volume":"509 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122761627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Compact switching technologies, state-of-art and future trends 紧凑型开关技术，最新技术和未来趋势

2011 1st International Conference on Electric Power Equipment - Switching Technology Pub Date : 2011-10-01 DOI: 10.1109/ICEPE-ST.2011.6122924

Hiroki Ito, H. Kohyama, D. Yoshida, T. Minagawa

引用次数: 0

Study on distributed digital simulation analysis system of aerospace electromagnetic relay based on Ethernet network 基于以太网的航天电磁继电器分布式数字仿真分析系统研究

2011 1st International Conference on Electric Power Equipment - Switching Technology Pub Date : 2011-10-01 DOI: 10.1109/ICEPE-ST.2011.6123017

Wenying Yang, G. Zhai

引用次数: 0

Research and development of self-energy SF6 circuit breaker on the breaking capacity 自能SF6断路器分断能力的研究与开发

2011 1st International Conference on Electric Power Equipment - Switching Technology Pub Date : 2011-10-01 DOI: 10.1109/ICEPE-ST.2011.6122949

Wen Gao, Wenbing Zhang, Ma Zhiying, W. Haibin, Peng Lei, Du Wenjuan, Jiao Qiuzhong

{"title":"Research and development of self-energy SF6 circuit breaker on the breaking capacity","authors":"Wen Gao, Wenbing Zhang, Ma Zhiying, W. Haibin, Peng Lei, Du Wenjuan, Jiao Qiuzhong","doi":"10.1109/ICEPE-ST.2011.6122949","DOIUrl":"https://doi.org/10.1109/ICEPE-ST.2011.6122949","url":null,"abstract":"By improving of the dielectric performance between the breakers, medium condition and arc extinguishing ability, the breaking capacity of circuit breaker is increased. The main architecture of the 252kV circuit breaker is determined in which double chamber of interrupter construction + dual-direction moving of contacts mode are introduced. The key structure design parameter have been optimized combined with the design experiences of the finalized product: The volume of thermal expand chamber and puffer chamber as well as the cooperation between them are determined which ensures the breaking of the high current. Electric field analysis software is used to calculate, analyze and optimize the electric field strength of the circuit breaker contacts in some sensitive positions. Improving airflow channel for the decrease of the gas density is to be restrained and the hot gas exhaust efficiency is to be increased. As a result, the medium condition is improved. All the test verification has achieved for the researched and developed circuit breaker, and the product have been on stream. In the meantime, it provides the new technical foundation for the various following switchgears.","PeriodicalId":379448,"journal":{"name":"2011 1st International Conference on Electric Power Equipment - Switching Technology","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130326866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on SF6 gas decomposition products of typical GIS defect models by infrared detection 基于红外检测的典型GIS缺陷模型SF6气体分解产物研究

2011 1st International Conference on Electric Power Equipment - Switching Technology Pub Date : 2011-10-01 DOI: 10.1109/ICEPE-ST.2011.6123038

Wang Yuanyuan, Wei-Wei Ning, Ji Shengchang, Ding Weidong, Ma Kui

引用次数: 9