Pub Date : 2000-09-18DOI: 10.1109/DEIV.2000.879077
G. Kostyuk
Ion, electron, light-beam and plasma flux processes are widely used in technology. Many technologies have been developed, such as: ion technologies-punching, polishing, milling, alloying, modification and covering; electron technologies-punching, welding, powdery covering and surface saturation by active gases; light beam technologies-cutting, dimensional processing, punching, powdery covering and strengthening; plasma technologies-cutting, melting, covering and strengthening.
{"title":"The perspective of development of combined technologies with help of ion, electron, light-beam and plasma fluxes for the receipt of the improved surface properties","authors":"G. Kostyuk","doi":"10.1109/DEIV.2000.879077","DOIUrl":"https://doi.org/10.1109/DEIV.2000.879077","url":null,"abstract":"Ion, electron, light-beam and plasma flux processes are widely used in technology. Many technologies have been developed, such as: ion technologies-punching, polishing, milling, alloying, modification and covering; electron technologies-punching, welding, powdery covering and surface saturation by active gases; light beam technologies-cutting, dimensional processing, punching, powdery covering and strengthening; plasma technologies-cutting, melting, covering and strengthening.","PeriodicalId":429452,"journal":{"name":"Proceedings ISDEIV. 19th International Symposium on Discharges and Electrical Insulation in Vacuum (Cat. No.00CH37041)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129339902","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}
Pub Date : 2000-09-18DOI: 10.1109/DEIV.2000.879030
K. Steinke, M. Lindmayer, K. Weltmann
The post-arc current of vacuum interrupter units with bipolar axial magnetic field contacts has been investigated under conditions of high current (40 to 60 kA RMS) and high steepness of the transient recovery voltage (5 and 10 kV//spl mu/s). The arcing time and contact distance, respectively, has been changed by varying the moment of contact separation. By comparison with simulations, the measured clear decrease of the post-arc current and charge with decreasing arcing time can be attributed to lower residual ionization. The dependence of the post-arc current on du/dt is explained by the influence of secondary emission.
研究了双极轴向磁场触点真空灭弧装置在大电流(40 ~ 60 kA RMS)和瞬态恢复电压(5和10 kV//spl mu/s)陡度条件下的弧后电流。通过改变触点分离力矩，分别改变了电弧时间和接触距离。通过与模拟结果的比较，实测的电弧后电流和电荷随电弧时间的缩短而明显减少，这可归因于较低的残余电离。二次发射的影响解释了弧后电流对du/dt的依赖关系。
{"title":"Post-arc currents of vacuum interrupters with axial magnetic field contacts under high current and voltage stress","authors":"K. Steinke, M. Lindmayer, K. Weltmann","doi":"10.1109/DEIV.2000.879030","DOIUrl":"https://doi.org/10.1109/DEIV.2000.879030","url":null,"abstract":"The post-arc current of vacuum interrupter units with bipolar axial magnetic field contacts has been investigated under conditions of high current (40 to 60 kA RMS) and high steepness of the transient recovery voltage (5 and 10 kV//spl mu/s). The arcing time and contact distance, respectively, has been changed by varying the moment of contact separation. By comparison with simulations, the measured clear decrease of the post-arc current and charge with decreasing arcing time can be attributed to lower residual ionization. The dependence of the post-arc current on du/dt is explained by the influence of secondary emission.","PeriodicalId":429452,"journal":{"name":"Proceedings ISDEIV. 19th International Symposium on Discharges and Electrical Insulation in Vacuum (Cat. No.00CH37041)","volume":"176 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127451618","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}
Pub Date : 2000-09-18DOI: 10.1109/DEIV.2000.877306
V. A. Litvinov, A. Murzakaev
In this message the analysis of experiment data and their interpretation is offered. The consideration is founded on an explosive electron emission model of a cathode spot. The problem of threshold currents of an arc is discussed.
{"title":"Processes in a cathode spot of a vacuum arc at small currents","authors":"V. A. Litvinov, A. Murzakaev","doi":"10.1109/DEIV.2000.877306","DOIUrl":"https://doi.org/10.1109/DEIV.2000.877306","url":null,"abstract":"In this message the analysis of experiment data and their interpretation is offered. The consideration is founded on an explosive electron emission model of a cathode spot. The problem of threshold currents of an arc is discussed.","PeriodicalId":429452,"journal":{"name":"Proceedings ISDEIV. 19th International Symposium on Discharges and Electrical Insulation in Vacuum (Cat. No.00CH37041)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128871665","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}
Pub Date : 2000-09-18DOI: 10.1109/DEIV.2000.879053
Y. Vitel, M. Lamoureux, H. Abada, A. Lejeune, C. Faure, P. Le Tourneaur, X. Godechot, S. Cochard
A vacuum arc plasma source has been designed and tested for fabrication of thin films clear of droplets. In order to avoid these droplets, the source has been optimized to produce pulsed plasmas generated by the anode, and to screen the anodic region against the plasma streaming away from the cathode spot. We present here spectroscopic measurements and analyses carried out in order to characterize the electron population of such anode plasmas. The vacuum arc was first operated with a carbon anode of diameter 0.5 mm and an arc current of 192 A. The visible and near infrared spectra were recorded with various resolutions, in direct view of the anode spot, with an intensified CCD camera. Several dominant lines were identified as C/sup +/ and C/sup 2+/ Lines. The relative intensities corresponding to transitions between meaningful multiplets show that the local thermal equilibrium is reached, and this allows a straightforward determination of the electron temperature and of the electron density. The values are about 3.2 eV and 2.5 10/sup 17/ cm/sup -3/. The study has been extended to lower currents of 140, 92 and 65 A. The temperature and the density are regularly decreasing down to about 2 eV and 1.5 10/sup 15/ cm/sup -3/.
{"title":"Spectroscopic investigation of vacuum arc anode plasmas for thin film deposition","authors":"Y. Vitel, M. Lamoureux, H. Abada, A. Lejeune, C. Faure, P. Le Tourneaur, X. Godechot, S. Cochard","doi":"10.1109/DEIV.2000.879053","DOIUrl":"https://doi.org/10.1109/DEIV.2000.879053","url":null,"abstract":"A vacuum arc plasma source has been designed and tested for fabrication of thin films clear of droplets. In order to avoid these droplets, the source has been optimized to produce pulsed plasmas generated by the anode, and to screen the anodic region against the plasma streaming away from the cathode spot. We present here spectroscopic measurements and analyses carried out in order to characterize the electron population of such anode plasmas. The vacuum arc was first operated with a carbon anode of diameter 0.5 mm and an arc current of 192 A. The visible and near infrared spectra were recorded with various resolutions, in direct view of the anode spot, with an intensified CCD camera. Several dominant lines were identified as C/sup +/ and C/sup 2+/ Lines. The relative intensities corresponding to transitions between meaningful multiplets show that the local thermal equilibrium is reached, and this allows a straightforward determination of the electron temperature and of the electron density. The values are about 3.2 eV and 2.5 10/sup 17/ cm/sup -3/. The study has been extended to lower currents of 140, 92 and 65 A. The temperature and the density are regularly decreasing down to about 2 eV and 1.5 10/sup 15/ cm/sup -3/.","PeriodicalId":429452,"journal":{"name":"Proceedings ISDEIV. 19th International Symposium on Discharges and Electrical Insulation in Vacuum (Cat. No.00CH37041)","volume":"53 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132772618","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}
Pub Date : 2000-09-18DOI: 10.1109/DEIV.2000.879017
H. Weinert, A. Lietz, D. Amft, D. Breitfeld
Based on a large number of experiments the effects of current chopping in low voltage contactors are investigated for switching off inductive loads. The experimental set-up consists of a standard three-phase low voltage application. Voltage and current are measured three phase at the contactor and at the load simultaneously. 12 signals are evaluated per experiment. The experimental results are compared with the experiences of medium voltage applications.
{"title":"Experimental investigations on switching overvoltages induced by current chopping in low voltage contactors","authors":"H. Weinert, A. Lietz, D. Amft, D. Breitfeld","doi":"10.1109/DEIV.2000.879017","DOIUrl":"https://doi.org/10.1109/DEIV.2000.879017","url":null,"abstract":"Based on a large number of experiments the effects of current chopping in low voltage contactors are investigated for switching off inductive loads. The experimental set-up consists of a standard three-phase low voltage application. Voltage and current are measured three phase at the contactor and at the load simultaneously. 12 signals are evaluated per experiment. The experimental results are compared with the experiences of medium voltage applications.","PeriodicalId":429452,"journal":{"name":"Proceedings ISDEIV. 19th International Symposium on Discharges and Electrical Insulation in Vacuum (Cat. No.00CH37041)","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123235758","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}
Pub Date : 2000-09-18DOI: 10.1109/DEIV.2000.879079
R. Stinnett, E. Neau, D. Barrett, K. Lamppa, F. White
The capability to reliably produce rapidly pulsed, intense ion beams with beam geometry suitable for commercial surface treatment applications has remained elusive, in spite of the effort of many researchers. Work at Quantum Manufacturing Technologies, Inc. (QMT) since 1996 has resulted in commercial equipment that can produce rapidly pulsed, intense ion beams, and in commercial applications for these beams. QMT's QM1 facility uses magnetic switching to achieve pulse compression from a 60 Hz wall plug power to 150 ns pulses with over 60% electrical efficiency. A magnetically-confined anode plasma (MAP) ion beam system is used to convert this electrical energy into a 3 billion watt beam of ions. This system has now produced a half million ion beam pulses with typical beam parameters of 0.5 kJ/pulse of ions, ion energy of 400 keV, pulse length of 150 ns, and pulse repetition rates of up to 5 pulses per second. Beams of either hydrogen or nitrogen ions are typically produced. This system functions reliably in automated commercial operation, incorporating, real time fault detection and synchronization with automated part handling. Confirmed applications for this capability include smoothing of metal surfaces by rapid melt and resolidification, production of harder, more wear resistant surfaces for tools and dies, hardening of polymer surfaces by crosslinking, and stripping coatings from carbide tools. The new capabilities offered by ion beam surface treatment have clear applications in many markets, including treatment of medical parts, tools, and dies.
{"title":"Commercial applications and equipment for ion beam surface treatment","authors":"R. Stinnett, E. Neau, D. Barrett, K. Lamppa, F. White","doi":"10.1109/DEIV.2000.879079","DOIUrl":"https://doi.org/10.1109/DEIV.2000.879079","url":null,"abstract":"The capability to reliably produce rapidly pulsed, intense ion beams with beam geometry suitable for commercial surface treatment applications has remained elusive, in spite of the effort of many researchers. Work at Quantum Manufacturing Technologies, Inc. (QMT) since 1996 has resulted in commercial equipment that can produce rapidly pulsed, intense ion beams, and in commercial applications for these beams. QMT's QM1 facility uses magnetic switching to achieve pulse compression from a 60 Hz wall plug power to 150 ns pulses with over 60% electrical efficiency. A magnetically-confined anode plasma (MAP) ion beam system is used to convert this electrical energy into a 3 billion watt beam of ions. This system has now produced a half million ion beam pulses with typical beam parameters of 0.5 kJ/pulse of ions, ion energy of 400 keV, pulse length of 150 ns, and pulse repetition rates of up to 5 pulses per second. Beams of either hydrogen or nitrogen ions are typically produced. This system functions reliably in automated commercial operation, incorporating, real time fault detection and synchronization with automated part handling. Confirmed applications for this capability include smoothing of metal surfaces by rapid melt and resolidification, production of harder, more wear resistant surfaces for tools and dies, hardening of polymer surfaces by crosslinking, and stripping coatings from carbide tools. The new capabilities offered by ion beam surface treatment have clear applications in many markets, including treatment of medical parts, tools, and dies.","PeriodicalId":429452,"journal":{"name":"Proceedings ISDEIV. 19th International Symposium on Discharges and Electrical Insulation in Vacuum (Cat. No.00CH37041)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121025678","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}
Pub Date : 2000-09-18DOI: 10.1109/DEIV.2000.879064
N. Vogel, N. Kochan
Generation of an extremely stable light bullets in a preformed plasma near critical density has been observed experimentally. Optical probing measurements indicate the formation of a pulsating channel, typically of about 5 /spl mu/m in diameter, directed towards to a heating laser beam, as well as a disconnected massive plasma blocks moving also towards to laser beam. The authors report time-resolved results obtained by interferometric and absorption measurements for the interaction of a 100 ps Nd:YAG laser beam at /spl lambda/=1064 nm with a metallic target in air. The formation of density ripples, light bullets and their temporal evolution was investigated with high spatial and temporal evolution. The velocity of such dense plasma blocks reaches values of order of 4.5/spl times/10 8 cm/s. And they are stable during the acceleration and propagation in air. Self-generated magnetic fields up to 8 MG were observed by means of Faraday rotation of a probe laser beam. They are "frozen"" in moving plasma blocks.
{"title":"Experimental investigation of stochastic pulsation and formation of light bullets in a laser-produced plasmas","authors":"N. Vogel, N. Kochan","doi":"10.1109/DEIV.2000.879064","DOIUrl":"https://doi.org/10.1109/DEIV.2000.879064","url":null,"abstract":"Generation of an extremely stable light bullets in a preformed plasma near critical density has been observed experimentally. Optical probing measurements indicate the formation of a pulsating channel, typically of about 5 /spl mu/m in diameter, directed towards to a heating laser beam, as well as a disconnected massive plasma blocks moving also towards to laser beam. The authors report time-resolved results obtained by interferometric and absorption measurements for the interaction of a 100 ps Nd:YAG laser beam at /spl lambda/=1064 nm with a metallic target in air. The formation of density ripples, light bullets and their temporal evolution was investigated with high spatial and temporal evolution. The velocity of such dense plasma blocks reaches values of order of 4.5/spl times/10 8 cm/s. And they are stable during the acceleration and propagation in air. Self-generated magnetic fields up to 8 MG were observed by means of Faraday rotation of a probe laser beam. They are \"frozen\"\" in moving plasma blocks.","PeriodicalId":429452,"journal":{"name":"Proceedings ISDEIV. 19th International Symposium on Discharges and Electrical Insulation in Vacuum (Cat. No.00CH37041)","volume":"182 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122437752","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}
Pub Date : 2000-09-18DOI: 10.1109/DEIV.2000.877275
W. Jianhua, Wang Jimei
A brief introduction of theoretical research in a vacuum arc and the development of vacuum interrupters and vacuum switchgear are described in this paper. The contents of theoretical research in vacuum arc include: characteristics curves between axial magnetic field and vacuum arc voltage; the internal distribution of electric field in high voltage vacuum interrupter; research in vacuum contact materials; measurement and analysis of post arc current after interruption in vacuum; research in the process of dielectric recovery after vacuum arc interruption; research in vacuum arc with spectrometric diagnosis; theoretical analysis of anode spot formation; theoretical analysis of electric field distribution in inner part of vacuum interrupter; and measurement and analysis of switching overvoltage in vacuum switchgear and vacuum arc deposition, etc. The contents of development and production of vacuum interrupters and vacuum switchgears include: the development of 63 kV and 110 kV high voltage vacuum interrupters and circuit breakers for distribution power system; the development of vacuum circuit breaker for generator with high rated current and high interrupting capacity; and research in a vacuum disconnector and compactness of vacuum interrupter, etc.
{"title":"Review of theoretical research in vacuum arc and their applications in China","authors":"W. Jianhua, Wang Jimei","doi":"10.1109/DEIV.2000.877275","DOIUrl":"https://doi.org/10.1109/DEIV.2000.877275","url":null,"abstract":"A brief introduction of theoretical research in a vacuum arc and the development of vacuum interrupters and vacuum switchgear are described in this paper. The contents of theoretical research in vacuum arc include: characteristics curves between axial magnetic field and vacuum arc voltage; the internal distribution of electric field in high voltage vacuum interrupter; research in vacuum contact materials; measurement and analysis of post arc current after interruption in vacuum; research in the process of dielectric recovery after vacuum arc interruption; research in vacuum arc with spectrometric diagnosis; theoretical analysis of anode spot formation; theoretical analysis of electric field distribution in inner part of vacuum interrupter; and measurement and analysis of switching overvoltage in vacuum switchgear and vacuum arc deposition, etc. The contents of development and production of vacuum interrupters and vacuum switchgears include: the development of 63 kV and 110 kV high voltage vacuum interrupters and circuit breakers for distribution power system; the development of vacuum circuit breaker for generator with high rated current and high interrupting capacity; and research in a vacuum disconnector and compactness of vacuum interrupter, etc.","PeriodicalId":429452,"journal":{"name":"Proceedings ISDEIV. 19th International Symposium on Discharges and Electrical Insulation in Vacuum (Cat. No.00CH37041)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131446013","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}
Pub Date : 2000-09-18DOI: 10.1109/DEIV.2000.879103
A. Emelyanov, L. A. Prokhodova
Summary form only given. The possibility of the night photoregistrar use for the control of the strained sections of the high-voltage equipment is shown. The night photoregistrar with microchannel amplification was presented by Emelyanov (see Proc. 17th ISDEIV, Berkeley, California, vol.1, p.37-41, 1996). The photoregistrar was elaborated and manufactured using the technology of high-voltage nanosecond conditioning film electrodes of the microchannel image amplifier. A possibility of photoregistrar application for night photography of moving objects without additional illumination was shown by Emelyanov (see Proc. 3rd ICECAAA, X'ian, China, vol.1, p.49-56, 1997). A use of the microchannel image amplifier allows detection and registering of weak luminescence invisible to the naked eye. The possibility of photoregistrar application for detection and registration of luminescence provoked by stray currents on the chain insulators and corona discharge arising on high-voltage equipment was suggested. To examine this supposition, we studied the sections of high intensity of electric field for a 500 kV power substation. The inspection was conducted at midnight. One could see quite well with the assistance of the night photoregistrar the corona discharge luminescence arising on the sections of electric field high intensity. Corona discharge on the high-voltage equipment of the power substation at 500 kV are shown. The photographs were taken on film with the sensibility of 20DIN.
{"title":"On certain applications of the night photoregistrar","authors":"A. Emelyanov, L. A. Prokhodova","doi":"10.1109/DEIV.2000.879103","DOIUrl":"https://doi.org/10.1109/DEIV.2000.879103","url":null,"abstract":"Summary form only given. The possibility of the night photoregistrar use for the control of the strained sections of the high-voltage equipment is shown. The night photoregistrar with microchannel amplification was presented by Emelyanov (see Proc. 17th ISDEIV, Berkeley, California, vol.1, p.37-41, 1996). The photoregistrar was elaborated and manufactured using the technology of high-voltage nanosecond conditioning film electrodes of the microchannel image amplifier. A possibility of photoregistrar application for night photography of moving objects without additional illumination was shown by Emelyanov (see Proc. 3rd ICECAAA, X'ian, China, vol.1, p.49-56, 1997). A use of the microchannel image amplifier allows detection and registering of weak luminescence invisible to the naked eye. The possibility of photoregistrar application for detection and registration of luminescence provoked by stray currents on the chain insulators and corona discharge arising on high-voltage equipment was suggested. To examine this supposition, we studied the sections of high intensity of electric field for a 500 kV power substation. The inspection was conducted at midnight. One could see quite well with the assistance of the night photoregistrar the corona discharge luminescence arising on the sections of electric field high intensity. Corona discharge on the high-voltage equipment of the power substation at 500 kV are shown. The photographs were taken on film with the sensibility of 20DIN.","PeriodicalId":429452,"journal":{"name":"Proceedings ISDEIV. 19th International Symposium on Discharges and Electrical Insulation in Vacuum (Cat. No.00CH37041)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132229068","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}
Pub Date : 2000-09-18DOI: 10.1109/DEIV.2000.879012
L. Zhiyuan, Wang Jimei, W. Zhongyi, Yuan Shun
A new kind of vacuum generator circuit breaker (VGCB) is introduced. The new VGCB have 2 breaks in each phase. One break is a vacuum disconnector (VD) which can load large rated current and the other one is a vacuum interrupter (VI) that can interrupt large short circuit current. In open operation, it is required that VD opens first and when the total current passes through VI then VI opens. An experiment that can simulate the situation is shown. In this experiment sinusoidal current up to 24 kA (rms) is used and the current can transfer from VD to VI successfully each time. In addition to the experiment, a theoretical analysis is made and a typical result is simulated. The simulation result is similar to the experiment one. From the experiment and theoretical results it is known that the new vacuum generator circuit breaker design is feasible.
介绍了一种新型真空发生器断路器。新的VGCB在每个阶段有2个间断。一种断路器是负载大额定电流的真空断开器(VD)，另一种断路器是中断大短路电流的真空断开器(VI)。在开路时，要求VD先开路，当总电流通过VI时，VI再开路。给出了一个可以模拟这种情况的实验。在本实验中，使用了高达24 kA (rms)的正弦电流，并且每次都能成功地从VD转移到VI。在实验的基础上，进行了理论分析，并对典型结果进行了仿真。仿真结果与实验结果基本一致。实验和理论结果表明，新型真空发生器断路器设计是可行的。
{"title":"Current transfer process in open operation between parallel breaks of vacuum generator circuit breaker","authors":"L. Zhiyuan, Wang Jimei, W. Zhongyi, Yuan Shun","doi":"10.1109/DEIV.2000.879012","DOIUrl":"https://doi.org/10.1109/DEIV.2000.879012","url":null,"abstract":"A new kind of vacuum generator circuit breaker (VGCB) is introduced. The new VGCB have 2 breaks in each phase. One break is a vacuum disconnector (VD) which can load large rated current and the other one is a vacuum interrupter (VI) that can interrupt large short circuit current. In open operation, it is required that VD opens first and when the total current passes through VI then VI opens. An experiment that can simulate the situation is shown. In this experiment sinusoidal current up to 24 kA (rms) is used and the current can transfer from VD to VI successfully each time. In addition to the experiment, a theoretical analysis is made and a typical result is simulated. The simulation result is similar to the experiment one. From the experiment and theoretical results it is known that the new vacuum generator circuit breaker design is feasible.","PeriodicalId":429452,"journal":{"name":"Proceedings ISDEIV. 19th International Symposium on Discharges and Electrical Insulation in Vacuum (Cat. No.00CH37041)","volume":"204 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134530181","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}
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