2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)最新文献_第10页

Analysis of anode thermal process of high-current vacuum arc 大电流真空电弧阳极热过程分析

2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV) Pub Date : 2016-09-01 DOI: 10.1109/DEIV.2016.7763954

Chuan Xiang, Zhihui Huang, J. Zou

引用次数: 1

Simulation on the electric field distribution for hybrid circuit breaker based on vacuum gap and CO2 gas gap 基于真空间隙和CO2气隙的混合断路器电场分布仿真

2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV) Pub Date : 2016-09-01 DOI: 10.1109/DEIV.2016.7763980

Xian Cheng, Lian-yao Jiao, Zhanqing Chen

引用次数: 0

Development of diagnostic methods for vacuum leakage from vacuum interrupter by partial discharge detection 局部放电检测真空灭流器漏真空诊断方法的研究

2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV) Pub Date : 2016-09-01 DOI: 10.1109/DEIV.2016.7763990

Shusei Yokomichi, M. Kozako, M. Hikita, Kazuhiro Sato, T. Moriyama, H. Urai, T. Nakaoka, K. Tsuchiya

引用次数: 5

Surface temperature measurement of transversal magnetic field contacts using a thermography camera 用热像仪测量横向磁场触点的表面温度

2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV) Pub Date : 2016-09-01 DOI: 10.1109/DEIV.2016.7748694

T. Pieniak, M. Kurrat, D. Gentsch

引用次数: 8

Simulation on breakdowns in the post-arc phase of a vacuum interruption 真空中断弧后阶段故障的模拟

2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV) Pub Date : 2016-09-01 DOI: 10.1109/DEIV.2016.7763937

Zhenxing Wang, Haoran Wang, Yanjun Jiang, Liqiong Sun, Jianhua Wang, Yingsan Geng, Zhiyuan Liu

{"title":"Simulation on breakdowns in the post-arc phase of a vacuum interruption","authors":"Zhenxing Wang, Haoran Wang, Yanjun Jiang, Liqiong Sun, Jianhua Wang, Yingsan Geng, Zhiyuan Liu","doi":"10.1109/DEIV.2016.7763937","DOIUrl":"https://doi.org/10.1109/DEIV.2016.7763937","url":null,"abstract":"Breakdowns in the post-arc phase are affected by a combination effect of both plasma and metal vapor. The objective of this paper is to study the breakdown boundary as a function of plasma and metal vapor density. A fully kinetic PIC-MCC model was developed to study breakdowns in the post-arc phase. Relevant collisions were taken into consideration, and an external circuit was added to the model to make the calculations self-consistent. From the results, we obtained the breakdown boundary in the post-arc phase under effect of both metal vapor and residual plasma. The residual plasma does not play a major role in breakdowns if the density was below 1017 m-3. However, if the residual plasma density exceeded 1017 m-3, the critical metal atom density for a breakdown steeply decreased with the increase of the plasma density. Therefore, a sufficiently high plasma density gives rise to a higher probability of breakdowns. For this reason, the threshold of metal vapor density could be overestimated if the residual plasma is not considered in the simulations.","PeriodicalId":296641,"journal":{"name":"2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122196261","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

Simulation on the high current interruption principle for hybrid circuit breaker of vacuum interrupter and CO2 gas interrupter 真空断流器与CO2气体断流器混合断路器大电流断流原理仿真

2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV) Pub Date : 2016-09-01 DOI: 10.1109/DEIV.2016.7763941

Zhanqing Chen, Xian Cheng, Lian-yao Jiao, G. Ge

{"title":"Simulation on the high current interruption principle for hybrid circuit breaker of vacuum interrupter and CO2 gas interrupter","authors":"Zhanqing Chen, Xian Cheng, Lian-yao Jiao, G. Ge","doi":"10.1109/DEIV.2016.7763941","DOIUrl":"https://doi.org/10.1109/DEIV.2016.7763941","url":null,"abstract":"CO2 gas is a possible substitute for SF6 gas in circuit breaker with relatively superior arc interruption performance. To enhance the interruption capacity of the circuit breaker which employs CO2 gas as its arc interruption dielectric, the interruption principle of the hybrid circuit breaker composed of vacuum interrupter and CO2 gas interrupter is studied. Based on the black-box arc models of hybrid circuit breaker built in ATP-EMTP, the interactions characteristics of vacuum interrupter and CO2 gas interrupter and the transient recovery voltage distribution between two interrupters during the interruption process are analyzed. The influence of voltage-dividing capacitors on transient recovery voltage distribution is discussed. The interruption capacity of hybrid circuit breaker and CO2 gas circuit breaker are compared. The results of simulation demonstrate that preferable transient recovery voltage distribution can be obtained under suitable control strategy while interrupters paralleled with voltage-dividing capacitors. The vacuum interrupter series connected with CO2 gas interrupter can assist in enhancing the high current interruption capacity of gas interrupter.","PeriodicalId":296641,"journal":{"name":"2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124703285","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: 4

Characteristics of vacuum breakdown field and comparison of field enhancement factor β in CuCr electrodes with slit configuration 缝形CuCr电极真空击穿场特性及场增强因子β的比较

2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV) Pub Date : 2016-09-01 DOI: 10.1109/DEIV.2016.7748675

Kazuki Sato, Y. Yamano, N. Asari, T. Shioiri, Takayoshi Icikawa

{"title":"Characteristics of vacuum breakdown field and comparison of field enhancement factor β in CuCr electrodes with slit configuration","authors":"Kazuki Sato, Y. Yamano, N. Asari, T. Shioiri, Takayoshi Icikawa","doi":"10.1109/DEIV.2016.7748675","DOIUrl":"https://doi.org/10.1109/DEIV.2016.7748675","url":null,"abstract":"A contact electrode of vacuum interrupter (VI) has slit parts on the electrode surface to control the vacuum arc during the current interruption. The edge configuration of the slit is important for the withstand performance of high voltage application for VI. We investigated the effect of the curvature radius of slit's configuration on the field enhancement factor β and the characteristics of vacuum breakdown for the slit electrodes made of CuCr alloy simplified simulating the AMF-electrode. As the results, the round chamfered configuration at the edge of slit increases the breakdown field, because of the reduction of pre-breakdown current flowing, that is, small field emission current. This is due to be small β-value by rounding chamfering of the edge at the slit. The BD field of the slit electrode can be improved by rounding the edge of the end of the slit more than 1 mm curvature radius, and the curvature of 0.5 mm radius for R0.5 slit electrode had almost little effect on improving the BD field owing to manufacturing inadequate curvature at the edge of slit.","PeriodicalId":296641,"journal":{"name":"2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130360649","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: 3

Research on the experimental method for HVDC vacuum circuit breaker based on artificial current zero 基于人工零流的高压直流真空断路器实验方法研究

2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV) Pub Date : 2016-09-01 DOI: 10.1109/DEIV.2016.7763996

Yingkui Zhang, Z. Shi, Qiaosen Wang, S. Jia, Lijun Wang

引用次数: 5

Research of a new type of fault current energized fast repulsive force actuator 一种新型故障电流激励快速斥力执行器的研究

2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV) Pub Date : 2016-09-01 DOI: 10.1109/DEIV.2016.7764009

Enyuan Dong, Qiao Li, Yu Tian, Taotao Qin, J. Zou

{"title":"Research of a new type of fault current energized fast repulsive force actuator","authors":"Enyuan Dong, Qiao Li, Yu Tian, Taotao Qin, J. Zou","doi":"10.1109/DEIV.2016.7764009","DOIUrl":"https://doi.org/10.1109/DEIV.2016.7764009","url":null,"abstract":"Based on the characters of repulsive force actuator for its fast speed in the opening and closing process, a kind of new-type fast circuit breaker energized by fault current was designed in this paper. With bus shunt as excitation current, double coil tandem repulsive force actuator and permanent magnetic actuator were composed together. This hybrid circuit breaker with new-type of excitation doesn't need receiving the order from logical judgment system or capacitor energy storage system. With spontaneous rapidity, its rapid opening speed is directly proportional related with the short current value. It has fast speed of response and action. On the basis of this structure, the simulation analysis and optimization was performed. Firstly, the coils' temperature-rise and turn-to-turn voltage under normal load were calculated to guarantee thermal stability and insulation reliability. Then the effect of output repulsive force was also analyzed to ensure the action's reliability. Besides, the break reliability was discussed when the short current meets the first zero crossing under different circuit phases and on this account the parameters of opening spring was optimized. Finally, the action mechanism of this new-type self-excitation hybrid circuit breaker was discussed in this paper. Based on finite element analysis and simulations, the fault current energized type hybrid circuit breaker prototype was manufactured. The experimental data verified that the new actuator can break circuit quickly and successfully under the presetting short-circuit threshold of 2.4kA.","PeriodicalId":296641,"journal":{"name":"2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128857551","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: 1

Multiple shield arrangements breakdown model in vacuum interrupters 真空断流器多屏蔽装置击穿模型

2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV) Pub Date : 2016-09-01 DOI: 10.1109/DEIV.2016.7763948

B. Kuehn, M. Kurrat, M. Hilbert, D. Gentsch

{"title":"Multiple shield arrangements breakdown model in vacuum interrupters","authors":"B. Kuehn, M. Kurrat, M. Hilbert, D. Gentsch","doi":"10.1109/DEIV.2016.7763948","DOIUrl":"https://doi.org/10.1109/DEIV.2016.7763948","url":null,"abstract":"Switching chambers of vacuum interrupters (VI) are mainly built with ceramics as insulators. During the interruption process, the ceramics are coated by metal vapor from the contact material. In a worst case scenario, an electrical bypass is formed, caused by the metal coating on the ceramic insulators. To avoid this, dielectric shielding is used to provide the vapor coating surfaces with defined potentials. Different shield arrangements offer a balance between local field stress and effective protection against impact from the metal coating. In the current work, we developed an electric field simulation approach using COMSOL software. The purpose was to study the impact of the deposited layers on the performance of the VI with multiple shield arrangements. The simulations were done based on three different cases, using the same VI geometry: VI without metal coating on the ceramics; VI with graded metal coating on the ceramics; Breakdown condition between the head-shield and the metal coating on the ceramics. The identification of the effect of coatings on the electric field inside a VI during lightning impulse voltage stress can help to evaluate the breakdown voltage of the whole arrangement. Therefore, we simulated the redistribution of the electric field strength over the remaining insulated shields.","PeriodicalId":296641,"journal":{"name":"2016 27th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130439463","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: 5