2006 International Symposium on Discharges and Electrical Insulation in Vacuum最新文献_第6页

The ultra high voltage device with vacuum insulation 采用真空绝缘的超高压装置

2006 International Symposium on Discharges and Electrical Insulation in Vacuum Pub Date : 2006-09-01 DOI: 10.1109/DEIV.2006.357265

Danshuheng, Tang Xinlong, Wang Dezhong, Zhupingyuan

{"title":"The ultra high voltage device with vacuum insulation","authors":"Danshuheng, Tang Xinlong, Wang Dezhong, Zhupingyuan","doi":"10.1109/DEIV.2006.357265","DOIUrl":"https://doi.org/10.1109/DEIV.2006.357265","url":null,"abstract":"The ultra high voltage transmission lines rated 1000kV will be the effective and practical strategy for the interconnection of the national wide power grid in China. In order to test the equipment with ultra high voltage the synthesis circuit which uses voltage and current source to work together will be adopted because of the lower test cost. The very important device which will determine and influence the validity of the synthesis circuit test will be introduced and designed in this paper. The voltage is high so the gap in air will be very long to sustain such high voltage even in vacuum the gap will also be long enough. Long gap is not easy to be influenced by the tripping signal. The simulation test is carried out with air gaps in series. The function of the tripping signal on the breakdown of the gaps is tested. The minimum breakdown voltage is tested and compared between the same gap with and without tripping signal. The relationship of the voltage smaller than the minimum breakdown voltage and the breakdown time is also tested. The test result proves that tripping signal can control the breakdown time of the gaps in series, which will be true for the long vacuum gaps in series. Furthermore the tripped vacuum gaps in series rated 500kV with 3.8m long is designed","PeriodicalId":369861,"journal":{"name":"2006 International Symposium on Discharges and Electrical Insulation in Vacuum","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121820596","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

Contact Material for Vacuum Interrupters based on CuCr with a Specific High Short Circuit Interruption Ability 具有特定高短路中断能力的CuCr真空断路器触头材料

2006 International Symposium on Discharges and Electrical Insulation in Vacuum Pub Date : 2006-09-01 DOI: 10.1109/DEIV.2006.357331

D. Gentsch

{"title":"Contact Material for Vacuum Interrupters based on CuCr with a Specific High Short Circuit Interruption Ability","authors":"D. Gentsch","doi":"10.1109/DEIV.2006.357331","DOIUrl":"https://doi.org/10.1109/DEIV.2006.357331","url":null,"abstract":"Vacuum interrupters (VI) with specific high short circuit interruption ability are mostly equipped with the well known contact material based on copper and chromium. A review of different production techniques as well as behaviour and microstructure of commercially available materials is presented with emphasis on two of the predominantly applied methods. The contact material's switching performance strongly depends on it's mechanical properties, gas and element concentration evaluated for each batch of base material. The contacts microstructure is investigated using scanning electron microscopy (SEM) and energy dispersive X-ray (EDX). Switching performance is proven on standard Vis and the examination is held in a high performance lab by interrupting a sequence with a huge number of short circuit currents in accordance to the standards according IEC 62271-100. When conducting limitation tests at higher demands than required a ranking of material batches is presented. The study is based on standard contact material with a chromium content of 25 wt.% used on the transverse magnetic field (TMF) contact system. Derived from the results a very compact VI for a rating of 40.5 kV at 40 kA with increased specific performance is introduced","PeriodicalId":369861,"journal":{"name":"2006 International Symposium on Discharges and Electrical Insulation in Vacuum","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116349539","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: 7

Improvement of Inertial Electrostatic Confinement Device by Lowed Operating Gas Pressure using Magnetron-Discharge-Based Ion Source 利用磁控管放电离子源降低工作气压改进惯性静电约束装置

2006 International Symposium on Discharges and Electrical Insulation in Vacuum Pub Date : 2006-09-01 DOI: 10.1109/DEIV.2006.357383

T. Takamatsu, T. Oishi, K. Masuda, K. Yoshikawa

引用次数: 0

Verification of a Fast Making Switch Based on Triggered Vacuum Switch and Vacuum Circuit Breaker 一种基于触发真空开关和真空断路器的快速闭合开关的验证

2006 International Symposium on Discharges and Electrical Insulation in Vacuum Pub Date : 2006-09-01 DOI: 10.1109/DEIV.2006.357277

Fan Xing-ming, Qiu Hong-hui, Liao Min-fu, Zou Ji-yan

{"title":"Verification of a Fast Making Switch Based on Triggered Vacuum Switch and Vacuum Circuit Breaker","authors":"Fan Xing-ming, Qiu Hong-hui, Liao Min-fu, Zou Ji-yan","doi":"10.1109/DEIV.2006.357277","DOIUrl":"https://doi.org/10.1109/DEIV.2006.357277","url":null,"abstract":"During synthetic making test a high speed making device is necessary to connect the switching device under test immediately after pre-strike during closing operation under applied voltage. A new kind of fast making device is emphatically expounded in this research, which is composed of triggered vacuum switch (TVS) and a fast vacuum circuit breaker (FVCB) with permanent magnetic actuator. Parallel-connected TVS and FVCB make up the basic optic-controlled module. And basic modules arranging in series can be increase the hold-off (withstand) voltage. When the closing command is triggered, TVS acts in several microseconds and carries the high making current first FVCB acts as the parallel protecting device for TVS, its closing command is sent simultaneously with TVS. Once FVCB closed the making current will shift to this branch, the erosion in TVS can be remarkably decreased. In this paper, a theoretical analysis is made and typical result is simulated with the power system simulation software EMTDC/PSCAD. The simulation result is similar to the experiment one. From the experiment and theoretical result it is known that the new kind of fast making device is feasible for synthetic making test of high voltage circuit breakers","PeriodicalId":369861,"journal":{"name":"2006 International Symposium on Discharges and Electrical Insulation in Vacuum","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125279912","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: 8

The Effect of an Auxiliary External Electrode on Low-pressure Xenon Pulsed Discharge 辅助外电极对低压氙气脉冲放电的影响

2006 International Symposium on Discharges and Electrical Insulation in Vacuum Pub Date : 2006-09-01 DOI: 10.1109/DEIV.2006.357375

M. Okamoto, K. Koyama, H. Kurokawa, H. Motomura, M. Jinno

{"title":"The Effect of an Auxiliary External Electrode on Low-pressure Xenon Pulsed Discharge","authors":"M. Okamoto, K. Koyama, H. Kurokawa, H. Motomura, M. Jinno","doi":"10.1109/DEIV.2006.357375","DOIUrl":"https://doi.org/10.1109/DEIV.2006.357375","url":null,"abstract":"The fluorescent lamps are widely used for general lighting because of their high efficacy, long life and so forth. Mercury which is used in fluorescent lamps for general lighting has a possibility to cause environmental problems. The author's group has been developing fluorescent lamps which contain only rare gases without mercury. The wavelength of the xenon resonance line is the longest in the rare-gas resonance lines, so that the Stokes-loss becomes smaller than the other rare-gases' cases. Therefore the authors have investigated pulsed xenon fluorescent lamps. However luminous flux of xenon fluorescent lamps was not large enough. The authors have been making efforts to improve luminous flux of the xenon lamp by expanding positive column. By setting an auxiliary external electrode on the outside wall of the lamp, positive column expands and luminous flux increases. However luminous efficacy decreases because power consumption through the external electrode is too large. So by using resistor, the current flowing through the external electrode is suppressed and power consumption decreased. Consequently higher luminous efficacy up to 100 lm/W with high luminance 6894 cd/m2 is achieved","PeriodicalId":369861,"journal":{"name":"2006 International Symposium on Discharges and Electrical Insulation in Vacuum","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127813609","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

Analysis of Axial Magnetic Field electrode applied to high voltage Vacuum Interrupters 轴向磁场电极在高压真空灭流器中的应用分析

2006 International Symposium on Discharges and Electrical Insulation in Vacuum Pub Date : 2006-09-01 DOI: 10.1109/DEIV.2006.357295

Xiu Shi-xin, P. Lei, Wang Jimei, Li Jianfei, He Guangli

引用次数: 7

Penning-like Energy Transfer between Argon and Nitrogen 氩氮间的潘宁式能量传递

2006 International Symposium on Discharges and Electrical Insulation in Vacuum Pub Date : 2006-09-01 DOI: 10.1109/DEIV.2006.357394

T. Matsuda, T. Sato, H. Motomura, M. Jinno

{"title":"Penning-like Energy Transfer between Argon and Nitrogen","authors":"T. Matsuda, T. Sato, H. Motomura, M. Jinno","doi":"10.1109/DEIV.2006.357394","DOIUrl":"https://doi.org/10.1109/DEIV.2006.357394","url":null,"abstract":"Nitrogen is known as a gas that has many emission spectra in ultraviolet region named 2nd positive band and they are thought to be suitable for phosphor excitation instead of harmful mercury. However, a molecular gas in a discharge has a tendency to get a high temperature because energy is stored as vibrational and rotational energy. This is a serious problem when the nitrogen discharge is used for light sources. Moreover, nitrogen requires fairy higher voltage to ignite and maintain a discharge compared with mercury-argon mixture. Because argon metastable levels (11.5 eV and 11.7 eV) lie near nitrogen C3IIu level (11.05 eV), which is upper state of 2nd positive band, energy transfer from argon metastable to nitrogen C 3IIu state is expected in the nitrogen-argon discharge. By limiting the amount of nitrogen to small portion, which is like a relationship between mercury and argon as a Penning gas, the discharge becomes stable and the temperature decrease, whereas the positive column of pure nitrogen or pure argon discharge tend to shrink and the pure nitrogen discharge have a high temperature. This result is attributed to the efficient energy flow to the C3IIu level through the energy transfer mentioned above. However, there is another problem that the amount of nitrogen molecule decreases during discharge, possibly by adsorption of nitrogen to the wall of discharge tube or the electrodes, which is confirmed from decrease in intensity of nitrogen molecule emission. The mechanisms of decrease in nitrogen molecule are under investigation","PeriodicalId":369861,"journal":{"name":"2006 International Symposium on Discharges and Electrical Insulation in Vacuum","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130331495","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: 2

Preliminary Study on Arc Welding in Vacuum 真空弧焊的初步研究

2006 International Symposium on Discharges and Electrical Insulation in Vacuum Pub Date : 2006-09-01 DOI: 10.1109/DEIV.2006.357414

H. Toya, K. Hieda, T. Saitou

{"title":"Preliminary Study on Arc Welding in Vacuum","authors":"H. Toya, K. Hieda, T. Saitou","doi":"10.1109/DEIV.2006.357414","DOIUrl":"https://doi.org/10.1109/DEIV.2006.357414","url":null,"abstract":"Welding technology in space is required to repair the space station. Arc welding in vacuum should be more conventional than electron beam welding because of low voltage operation. Preliminary study on vacuum arc welding is presented in this paper. Arc was ignited by separating an arcing electrode (cathode) from the welding piece (anode). The former is composed of a rod with round tip, however the latter of a screw/nut set. Both of them are made of stainless-steal (SUS304). A pulsed-arc current up to approx. 3kA with duration of about 15-20ms was fed from a power supply that was consisted of a low-voltage LC circuit (135 muH/0.04F/550V) with a crowbar diode. The screw/nut seemed to be uniformly melted by eye. The tensile strength of the welded piece was measured after welding test. However it was low in comparison with a TIG welding piece performed in an atmospheric pressure. One-dimensional thermal conduction was analyzed in a finite welding piece. The calculated result showed that the melting depth could be over 1mm when the arc current flows for more than 10-15 times longer than that in this experiment. Further investigation is required to find appropriate conditions (arc current, arc discharge mode, welding material, etc) to realize satisfactory arc welding in vacuum","PeriodicalId":369861,"journal":{"name":"2006 International Symposium on Discharges and Electrical Insulation in Vacuum","volume":"80 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131626581","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: 2

Analysis of Axial Magnetic Field of Slot Type Axial Magnetic Field Contacts with Iron Plates 槽型轴向磁场接触铁板的轴向磁场分析

2006 International Symposium on Discharges and Electrical Insulation in Vacuum Pub Date : 2006-09-01 DOI: 10.1109/DEIV.2006.357288

Zhiyuan Liu, Yaping Hu, Jimei Wang, Quan Wang, Dongli Bi, Guangli He

引用次数: 5

Controlled Switching of Shunt Capacitor Banks with Vacuum Circuit Breaker 用真空断路器控制并联电容器组的开关

2006 International Symposium on Discharges and Electrical Insulation in Vacuum Pub Date : 2006-09-01 DOI: 10.1109/DEIV.2006.357333

F. Ding, X. Duan, J. Zou, M. Liao

引用次数: 6