Pub Date : 2003-10-19DOI: 10.1109/CEIDP.2003.1254875
W. Shi, Z. Guan, L.M. Wang, J. Zhou
In recent years, large-scale development of China's western region has been vigorously promoted. As part of the development, several very high voltage transmission lines have been or are planning to be built in China's western region with a high altitude. The contamination flashover of insulators depends not only on the severity and type of contamination, but also on the altitude at which these insulators are situated. Reduced pressure or air density combined with light contamination at high altitudes decrease the flashover voltage. This paper analyzes the affects of low air pressure on the insulation characters of the transmission lines theoretically and experimentally, and a suggestion is given for the selection of outdoor insulator that will be used in the 110 kV AC power transmission line along Qinghai-Tibet railway.
{"title":"A study on the selection of outdoor insulators used in high altitude areas","authors":"W. Shi, Z. Guan, L.M. Wang, J. Zhou","doi":"10.1109/CEIDP.2003.1254875","DOIUrl":"https://doi.org/10.1109/CEIDP.2003.1254875","url":null,"abstract":"In recent years, large-scale development of China's western region has been vigorously promoted. As part of the development, several very high voltage transmission lines have been or are planning to be built in China's western region with a high altitude. The contamination flashover of insulators depends not only on the severity and type of contamination, but also on the altitude at which these insulators are situated. Reduced pressure or air density combined with light contamination at high altitudes decrease the flashover voltage. This paper analyzes the affects of low air pressure on the insulation characters of the transmission lines theoretically and experimentally, and a suggestion is given for the selection of outdoor insulator that will be used in the 110 kV AC power transmission line along Qinghai-Tibet railway.","PeriodicalId":306575,"journal":{"name":"2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124187165","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 : 2003-10-19DOI: 10.1109/CEIDP.2003.1254867
R. Joshi, Q. Hu, K. Schoenbach, V. Lakdawala
The dynamics of electroporation in biological cells subjected to nanosecond, high intensity pulses are studied based on a coupled scheme involving current continuity and Smoluchowski equations. A new distributed current model is presented for potential distribution to includes dynamic conductivities of cell membranes and substructures caused by pore formation. Different cell responses of normal and malignant (Farage) tonsillar B-cells are compared and discussed. It is shown that ultrashort, high-intensity electric pulses could selectively damage cancer cells.
{"title":"Modeling studies of cellular response to ultrashort, high-intensity electric fields","authors":"R. Joshi, Q. Hu, K. Schoenbach, V. Lakdawala","doi":"10.1109/CEIDP.2003.1254867","DOIUrl":"https://doi.org/10.1109/CEIDP.2003.1254867","url":null,"abstract":"The dynamics of electroporation in biological cells subjected to nanosecond, high intensity pulses are studied based on a coupled scheme involving current continuity and Smoluchowski equations. A new distributed current model is presented for potential distribution to includes dynamic conductivities of cell membranes and substructures caused by pore formation. Different cell responses of normal and malignant (Farage) tonsillar B-cells are compared and discussed. It is shown that ultrashort, high-intensity electric pulses could selectively damage cancer cells.","PeriodicalId":306575,"journal":{"name":"2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127333031","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 : 2003-10-19DOI: 10.1109/CEIDP.2003.1254807
J. Y. Zhou, Steven A. Boggs
The nonlinear dielectric properties of a three component system consisting of nonlinear resistive, linear resistive, and nonconducting cubes of equal size is studied to determine the range of nonlinear grading properties which can be achieved. The system is modeled on a statistical basis, with confirmation through Monte Carlo simulations. The objective is to gain insight into the range of field grading properties which should be possible as a function of the characteristics of the nonlinear component and the ratio of the three components.
{"title":"Dielectric properties of three component mixtures of nonlinear, resistive, and non-conducting grains","authors":"J. Y. Zhou, Steven A. Boggs","doi":"10.1109/CEIDP.2003.1254807","DOIUrl":"https://doi.org/10.1109/CEIDP.2003.1254807","url":null,"abstract":"The nonlinear dielectric properties of a three component system consisting of nonlinear resistive, linear resistive, and nonconducting cubes of equal size is studied to determine the range of nonlinear grading properties which can be achieved. The system is modeled on a statistical basis, with confirmation through Monte Carlo simulations. The objective is to gain insight into the range of field grading properties which should be possible as a function of the characteristics of the nonlinear component and the ratio of the three components.","PeriodicalId":306575,"journal":{"name":"2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128612579","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 : 2003-10-19DOI: 10.1109/CEIDP.2003.1254783
L. Cheran, P. Lam, Z. Zheng, S. Boggs, M. Thompson
The scanning Kelvin microprobe is a powerful technique to characterize subtle changes in surface microstructure and local chemical properties through the simultaneously imaging of the topography and potential distribution across a surface at the sub-micron level. The study of dielectric materials using the Kelvin method opens a new area of applications for a technique traditionally reserved specifically for metals and, more recently, for semiconductor materials. We present here the capabilities of this new instrument, the characterization of dielectric samples and the related challenges, as well as Finite Element Analysis models of this particular type of insulating surfaces.
{"title":"Characterization of dielectric materials using a high-resolution scanning Kelvin-microprobe","authors":"L. Cheran, P. Lam, Z. Zheng, S. Boggs, M. Thompson","doi":"10.1109/CEIDP.2003.1254783","DOIUrl":"https://doi.org/10.1109/CEIDP.2003.1254783","url":null,"abstract":"The scanning Kelvin microprobe is a powerful technique to characterize subtle changes in surface microstructure and local chemical properties through the simultaneously imaging of the topography and potential distribution across a surface at the sub-micron level. The study of dielectric materials using the Kelvin method opens a new area of applications for a technique traditionally reserved specifically for metals and, more recently, for semiconductor materials. We present here the capabilities of this new instrument, the characterization of dielectric samples and the related challenges, as well as Finite Element Analysis models of this particular type of insulating surfaces.","PeriodicalId":306575,"journal":{"name":"2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134175272","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 : 2003-10-19DOI: 10.1109/CEIDP.2003.1254825
M. Wakamatsu, K. Kato, H. Koide, H. Okubo
Electrostatic charging may occur in oil immersed power transformers because of a flow electrification phenomenon. In this paper, we directly measured the time variation of electric field strength in the flowing charged oil using an electro-optic Kerr effect to clarify the charge behavior in the flowing oil/pressboard (PB) composite system. We discussed the measurement results from the viewpoint of charge behavior. Finally we found that the charging process is dependent on the three different electric fields, i.e. applied field, space charge field and counter field by accumulated charges, and is finalized by the balance of these fields.
{"title":"Charge behavior in flowing charged oil/pressboard composite insulation system based on electric field measurement","authors":"M. Wakamatsu, K. Kato, H. Koide, H. Okubo","doi":"10.1109/CEIDP.2003.1254825","DOIUrl":"https://doi.org/10.1109/CEIDP.2003.1254825","url":null,"abstract":"Electrostatic charging may occur in oil immersed power transformers because of a flow electrification phenomenon. In this paper, we directly measured the time variation of electric field strength in the flowing charged oil using an electro-optic Kerr effect to clarify the charge behavior in the flowing oil/pressboard (PB) composite system. We discussed the measurement results from the viewpoint of charge behavior. Finally we found that the charging process is dependent on the three different electric fields, i.e. applied field, space charge field and counter field by accumulated charges, and is finalized by the balance of these fields.","PeriodicalId":306575,"journal":{"name":"2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131785657","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 : 2003-10-19DOI: 10.1109/CEIDP.2003.1254819
M. Lança, C. Dias, D. D. Das Gupta, J. Marat-Mendes
Low-density polyethylene (LDPE) films were thermally aged in a sodium chloride aqueous solution at constant temperature (thermal aging). Some of the samples were simultaneously immersed in solution and subjected to an electric AC field (electrical aging). The dielectric relaxation spectra at 30/spl deg/C in the range of 10/sup -5/ Hz to 10/sup 5/ Hz were obtained for unaged and aged samples. For the low frequency (LF) region (10/sup -5/ Hz to 10/sup -1/ Hz) the time domain technique was used. A lock-in amplifier was used for the 10/sup -1/ Hz to 10/sup 1/ Hz medium frequency (MF) region. While for the high frequency (HF), 10/sup -1/ Hz to 10/sup 5/ Hz, RLC bridge measurements were performed. The main differences can be seen between electrically, thermally aged and unaged LDPE in the HF and LF regions. The LF peak is a broad peak related to localized space charge injection driven by the electric field. For electrically aged samples this peak increases in an earlier stage of electrical aging, decreasing afterwards. While in thermally aged samples the peak amplitude always increases with aging time. Finally the HF shows the beginning of a peak due to the /spl gamma/ and /spl beta/ transitions. This peak decreases with aging disappearing for the most aged samples.
{"title":"Comparative study of dielectric relaxation spectra of electrically and thermally aged low density polyethylene","authors":"M. Lança, C. Dias, D. D. Das Gupta, J. Marat-Mendes","doi":"10.1109/CEIDP.2003.1254819","DOIUrl":"https://doi.org/10.1109/CEIDP.2003.1254819","url":null,"abstract":"Low-density polyethylene (LDPE) films were thermally aged in a sodium chloride aqueous solution at constant temperature (thermal aging). Some of the samples were simultaneously immersed in solution and subjected to an electric AC field (electrical aging). The dielectric relaxation spectra at 30/spl deg/C in the range of 10/sup -5/ Hz to 10/sup 5/ Hz were obtained for unaged and aged samples. For the low frequency (LF) region (10/sup -5/ Hz to 10/sup -1/ Hz) the time domain technique was used. A lock-in amplifier was used for the 10/sup -1/ Hz to 10/sup 1/ Hz medium frequency (MF) region. While for the high frequency (HF), 10/sup -1/ Hz to 10/sup 5/ Hz, RLC bridge measurements were performed. The main differences can be seen between electrically, thermally aged and unaged LDPE in the HF and LF regions. The LF peak is a broad peak related to localized space charge injection driven by the electric field. For electrically aged samples this peak increases in an earlier stage of electrical aging, decreasing afterwards. While in thermally aged samples the peak amplitude always increases with aging time. Finally the HF shows the beginning of a peak due to the /spl gamma/ and /spl beta/ transitions. This peak decreases with aging disappearing for the most aged samples.","PeriodicalId":306575,"journal":{"name":"2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122892144","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 : 2003-10-19DOI: 10.1109/CEIDP.2003.1254903
J. Amarnath, D. Paramahamsa, K. Narasimharao, B.P. Singh, K.D. Shrivastava
Gas Insulated Substations have found a broad range of applications in power systems over the last three decades because of their high reliability, easy maintenance, small ground space requirements etc. Although GIS have been in operation for several years, some of the problems are of more attention. These problems include generation of Very Fast Transient Overvoltages (VFTO) during switching operations or earthing faults, the secondary breakdown inside GIS caused by VFTO and Transient Enclosure Voltages (TEA) outside the GIS. In this paper the VFTO levels are estimated by using PSPICE models for all the equivalent circuits of the GIS components including the spark channel development. The results show that the spark lengths below 4 cm, will not affect the VFTO level in a GIS. Further, the maximum possible value of the VFTO level is 2.72 per unit in the case of a 245 KV GIS has been observed. Moreover, the maximum over voltages occur at the open ends of the gas insulated bus bars. However, the VFTO levels after the VFTO breakdown under highly non-uniform fields are low i.e.-1.7 per unit after introduction of spark resistance and hence the Over voltages are further reduced to 1.2 per unit.
{"title":"Very fast transient over-voltages and transient enclosure voltages in gas insulated substations","authors":"J. Amarnath, D. Paramahamsa, K. Narasimharao, B.P. Singh, K.D. Shrivastava","doi":"10.1109/CEIDP.2003.1254903","DOIUrl":"https://doi.org/10.1109/CEIDP.2003.1254903","url":null,"abstract":"Gas Insulated Substations have found a broad range of applications in power systems over the last three decades because of their high reliability, easy maintenance, small ground space requirements etc. Although GIS have been in operation for several years, some of the problems are of more attention. These problems include generation of Very Fast Transient Overvoltages (VFTO) during switching operations or earthing faults, the secondary breakdown inside GIS caused by VFTO and Transient Enclosure Voltages (TEA) outside the GIS. In this paper the VFTO levels are estimated by using PSPICE models for all the equivalent circuits of the GIS components including the spark channel development. The results show that the spark lengths below 4 cm, will not affect the VFTO level in a GIS. Further, the maximum possible value of the VFTO level is 2.72 per unit in the case of a 245 KV GIS has been observed. Moreover, the maximum over voltages occur at the open ends of the gas insulated bus bars. However, the VFTO levels after the VFTO breakdown under highly non-uniform fields are low i.e.-1.7 per unit after introduction of spark resistance and hence the Over voltages are further reduced to 1.2 per unit.","PeriodicalId":306575,"journal":{"name":"2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127868167","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 : 2003-10-19DOI: 10.1109/CEIDP.2003.1254856
T. P. Hong, P. Frayssines, O. Lesaint, F. Aitken, F. Devaux
This paper presents an experimental study of the influence of vapor bubbles on breakdown in liquid nitrogen. Vapor bubbles are initiated by creating a small hot spot at the surface of an electrode. The behavior of vapor bubbles is first investigated by visualization, versus power dissipated by the heater, pressure and electric field. When breakdown occurs in the presence of bubbles, it is due to formation of either a vapor bridge between the electrodes (at low pressure), or a vapor layer on the hot spot (at high pressure). The results are discussed in comparison with gas breakdown fields obtained from the Paschen's law.
{"title":"Influence of vapor bubbles initiated by steady heating on the breakdown of liquid nitrogen","authors":"T. P. Hong, P. Frayssines, O. Lesaint, F. Aitken, F. Devaux","doi":"10.1109/CEIDP.2003.1254856","DOIUrl":"https://doi.org/10.1109/CEIDP.2003.1254856","url":null,"abstract":"This paper presents an experimental study of the influence of vapor bubbles on breakdown in liquid nitrogen. Vapor bubbles are initiated by creating a small hot spot at the surface of an electrode. The behavior of vapor bubbles is first investigated by visualization, versus power dissipated by the heater, pressure and electric field. When breakdown occurs in the presence of bubbles, it is due to formation of either a vapor bridge between the electrodes (at low pressure), or a vapor layer on the hot spot (at high pressure). The results are discussed in comparison with gas breakdown fields obtained from the Paschen's law.","PeriodicalId":306575,"journal":{"name":"2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121364666","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 : 2003-10-19DOI: 10.1109/CEIDP.2003.1254958
Mohsen Saniei, S. J. MacGreggor, R. Fouracre
The breakdown of a triggered, plane-parallel electrode system with water dielectric has been investigated. The gap was triggered by a discharge initiated at an electrically isolated trigger pin, positioned in the center of one of the electrodes, using a 500 ns voltage pulse. A 5000 fps CCD-camera monitored events occurring in the gap during such a discharge and the intensity variations of a laser beam transmitted through the electrode gap was also monitored. The results indicate the initiation, expansion and collapse of a gas bubble generated at the trigger electrode. The subsequent application of a voltage between the plane electrodes results in the complete breakdown of the gap due to the trigger discharge. The effect of a delay time between the trigger pulse and the application of the main gap voltage was consistent with the growth and collapse of the trigger-initiated bubble.
{"title":"Investigation of the mechanisms leading to the electrical breakdown of a triggered water gaps","authors":"Mohsen Saniei, S. J. MacGreggor, R. Fouracre","doi":"10.1109/CEIDP.2003.1254958","DOIUrl":"https://doi.org/10.1109/CEIDP.2003.1254958","url":null,"abstract":"The breakdown of a triggered, plane-parallel electrode system with water dielectric has been investigated. The gap was triggered by a discharge initiated at an electrically isolated trigger pin, positioned in the center of one of the electrodes, using a 500 ns voltage pulse. A 5000 fps CCD-camera monitored events occurring in the gap during such a discharge and the intensity variations of a laser beam transmitted through the electrode gap was also monitored. The results indicate the initiation, expansion and collapse of a gas bubble generated at the trigger electrode. The subsequent application of a voltage between the plane electrodes results in the complete breakdown of the gap due to the trigger discharge. The effect of a delay time between the trigger pulse and the application of the main gap voltage was consistent with the growth and collapse of the trigger-initiated bubble.","PeriodicalId":306575,"journal":{"name":"2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129337099","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 : 2003-10-19DOI: 10.1109/CEIDP.2003.1254849
B. Du
Surface dielectric breakdown phenomenon of printed circuit board (PCB) under dc magnetic field was investigated, we employed a dc magnetic field, which was made at 395 mT, and the electrical field was made at 60 kV/mm, 100 kV/mm and then up to 300 kV/mm. The experiment was carried out by dc pulse voltage with the frequencies in the range of 50 Hz to 150 Hz. PCB of epoxy resin laminate have been employed to investigate the effects of the magnetic field, the density of electrical field and the frequencies of applied voltage on discharge quantity. The relation between the time to insulation breakdown and the electrical fields under dc magnetic field were examined. Surface dielectric breakdown is caused by decomposed carbon on the sample surface, which is precipitated due to heat from discharge currents occurred between the electrodes. The study revealed that the time to breakdown decreases under magnetic field and decreases with increasing the density of electrical field. The characteristics of discharge currents were discussed by using a power spectral density. The results show that the power spectral density of discharge currents increases under magnetic field and with increasing the density of electrical fields.
{"title":"Surface breakdown of printed circuit board under dc magnetic field","authors":"B. Du","doi":"10.1109/CEIDP.2003.1254849","DOIUrl":"https://doi.org/10.1109/CEIDP.2003.1254849","url":null,"abstract":"Surface dielectric breakdown phenomenon of printed circuit board (PCB) under dc magnetic field was investigated, we employed a dc magnetic field, which was made at 395 mT, and the electrical field was made at 60 kV/mm, 100 kV/mm and then up to 300 kV/mm. The experiment was carried out by dc pulse voltage with the frequencies in the range of 50 Hz to 150 Hz. PCB of epoxy resin laminate have been employed to investigate the effects of the magnetic field, the density of electrical field and the frequencies of applied voltage on discharge quantity. The relation between the time to insulation breakdown and the electrical fields under dc magnetic field were examined. Surface dielectric breakdown is caused by decomposed carbon on the sample surface, which is precipitated due to heat from discharge currents occurred between the electrodes. The study revealed that the time to breakdown decreases under magnetic field and decreases with increasing the density of electrical field. The characteristics of discharge currents were discussed by using a power spectral density. The results show that the power spectral density of discharge currents increases under magnetic field and with increasing the density of electrical fields.","PeriodicalId":306575,"journal":{"name":"2003 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2003-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128605692","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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