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Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986最新文献

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Basic studies in three component gas mixtures containing SF6 含SF6的三组分气体混合物的基础研究
Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986 Pub Date : 1986-11-01 DOI: 10.1109/CEIDP.1986.7726464
G. R. Venkateshaiah, M. Naidu
{"title":"Basic studies in three component gas mixtures containing SF6","authors":"G. R. Venkateshaiah, M. Naidu","doi":"10.1109/CEIDP.1986.7726464","DOIUrl":"https://doi.org/10.1109/CEIDP.1986.7726464","url":null,"abstract":"Basic study of swarm parameters (V<inf>s</inf>, α/Ρ and η/Ρ) are essential for the choice of a suitable gas mixture (binary or ternary), such as, SF<inf>6</inf>/N<inf>2</inf> mixture, for a given application. In view of such an importance, breakdown potentials (V<inf>s</inf>) have been measured in this study in SF<inf>6</inf>, N<inf>2</inf>, SF<inf>6</inf>/N<inf>2</inf>, freon (CCl2F2) and SF<inf>b</inf>/CCl<inf>2</inf>F<inf>2</inf>/N<inf>2</inf> mixtures. Net ionisation coefficient α'/Ν, (α'/N)= [(α-η)/Ν] has also been evaluated, for a selected range of experimental conditions in SF<inf>6</inf>/ CCl<inf>2</inf>F<inf>2</inf>/Ν2 mixtures. Over the range of Nd studied (6.6 × 10<sup>16</sup> to 132 × 10<sup>16</sup> cm<sup>−2</sup>) Paschen's law was not found to hold good in SF<inf>6</inf>, while in SF<inf>b</inf>/N<inf>2</inf> mixtures, addition of small quantities of N<inf>2</inf> was observed to significantly reduce the deviation from the similarity theorem.","PeriodicalId":354533,"journal":{"name":"Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123837537","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
Influence of AC and DC field on streaming electrification of transformer oil 交直流磁场对变压器油流化的影响
Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986 Pub Date : 1986-11-01 DOI: 10.1109/14.2346
H. Miyao, M. Higaki, Y. Kamata
{"title":"Influence of AC and DC field on streaming electrification of transformer oil","authors":"H. Miyao, M. Higaki, Y. Kamata","doi":"10.1109/14.2346","DOIUrl":"https://doi.org/10.1109/14.2346","url":null,"abstract":"It is well known that electrostatic charges are generated by the friction between the flowing insulating liquid and the fixed solid. Especially, the phenomenon of the electrostatic charge separation owing to the flowing insulating liquid has been investigated actively in oil pipe lines in the petroleum industry, because of the fire or the explosion of oil tanks and tankers.[1]","PeriodicalId":354533,"journal":{"name":"Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115589896","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: 34
Properties of metal-polymer-metal structures observed with space charge mapping techniques — II. Radiation induced space charge distributions 用空间电荷映射技术观察金属-聚合物-金属结构的性质- II。辐射诱导的空间电荷分布
Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986 Pub Date : 1986-11-01 DOI: 10.1109/CEIDP.1986.7726432
S. R. Kurtz, R. Anderson
{"title":"Properties of metal-polymer-metal structures observed with space charge mapping techniques — II. Radiation induced space charge distributions","authors":"S. R. Kurtz, R. Anderson","doi":"10.1109/CEIDP.1986.7726432","DOIUrl":"https://doi.org/10.1109/CEIDP.1986.7726432","url":null,"abstract":"The techniques described in the preceding paper are utilized to observe the space charge distributions that are generated in metal-polymer-metal samples subjected to x-ray irradiation in the presence of an electric field. Our previous radiation-induced conductivity studies on poly(ethylene terephthalate) and doped poly(ethylene terephthalate) films have shown that holes are immobile in that material and electrons are the dominant photocarrier species. Consistent with those measurements, we find a positive space charge distribution trapped adjacent to the cathode in poly(ethylene terephthalate) samples after x-ray irradiation. The width of that heterocharge distribution is compared with the estimated electron Schubweg. Ongoing experiments studying the dose and electric field dependence of the space charge formation will be described. These measurements reveal injection currents that limit heterocharge formation. The presence of space charge limited currents in radiation-induced conductivity data will be examined.","PeriodicalId":354533,"journal":{"name":"Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130114725","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
Plasma deposited aluminum nitride films 等离子沉积氮化铝薄膜
Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986 Pub Date : 1986-11-01 DOI: 10.1109/CEIDP.1986.7726434
R. Sadhir, W. Byers
{"title":"Plasma deposited aluminum nitride films","authors":"R. Sadhir, W. Byers","doi":"10.1109/CEIDP.1986.7726434","DOIUrl":"https://doi.org/10.1109/CEIDP.1986.7726434","url":null,"abstract":"Thin films were deposited at room temperature by plasma polymerization of trimethylaluminum and nitrogen or ammonia. These films appeared to consist of amorphous aluminum nitride. Spectroscopic studies of the plasma light emission indicated that the choice of nitrogen or ammonia as the nitrogen-containing reactant has little effect on the plasma chemistry. However, higher quality films may be produced by choice of a different aluminum-containing reactant, higher substrate temperatures, or a more energetic plasma.","PeriodicalId":354533,"journal":{"name":"Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130193579","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
Transient current measurements in polyimide 聚酰亚胺的瞬态电流测量
Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986 Pub Date : 1986-11-01 DOI: 10.1109/CEIDP.1986.7726441
H. Kliem, B. Schumacher, G. Arlt
{"title":"Transient current measurements in polyimide","authors":"H. Kliem, B. Schumacher, G. Arlt","doi":"10.1109/CEIDP.1986.7726441","DOIUrl":"https://doi.org/10.1109/CEIDP.1986.7726441","url":null,"abstract":"Polyimides are a group of polymers with excellent insulating properties such as low conductivity (comparable to SiO<inf>2</inf> and Al<inf>2</inf>O<inf>3</inf>) high breakdown field strength (−3MVcm<sup>−1</sup>) and a high chemical stability. Therefore they are often used in microelectronic devices as well as in energy electronics.","PeriodicalId":354533,"journal":{"name":"Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126088426","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
High field conduction and carrier traps in polyethylene copolymerized with various monomers 聚乙烯与各种单体共聚的高场传导和载流子陷阱
Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986 Pub Date : 1986-11-01 DOI: 10.1541/IEEJFMS1990.111.6_525
T. Mizutani, Y. Suzuoki, M. Hikita, K. M. Yoo, M. Ieda, I. Ishino
{"title":"High field conduction and carrier traps in polyethylene copolymerized with various monomers","authors":"T. Mizutani, Y. Suzuoki, M. Hikita, K. M. Yoo, M. Ieda, I. Ishino","doi":"10.1541/IEEJFMS1990.111.6_525","DOIUrl":"https://doi.org/10.1541/IEEJFMS1990.111.6_525","url":null,"abstract":"Polyethylene (PE) has been widely used in the fields of wire and cable insulation because of its excellent electrical properties (low dielectric loss and high electric strength). Recently, the development of 500 kV class PE cable is in progress and the improvement of insulating materials is required to endure under a higher electric stress. Chemical modification (copolymerization, additives, etc.) and physical modification (morphology, crystallinity, etc.) of PE have been tried to increase its electric strength [1,2]. We found that electric strength of PE was improved by the copolymerization of monomers containing halogen atoms [3]. In order to clarify the role of halogen comonomers, in this paper, we have investigated high field conduction and carrier traps in PE copolymerized with various halogen comonomers.","PeriodicalId":354533,"journal":{"name":"Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133512985","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
The static electrification phenomena in power transformers 电力变压器中的静电现象
Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986 Pub Date : 1986-11-01 DOI: 10.1109/CEIDP.1986.7726449
D. Crofts
{"title":"The static electrification phenomena in power transformers","authors":"D. Crofts","doi":"10.1109/CEIDP.1986.7726449","DOIUrl":"https://doi.org/10.1109/CEIDP.1986.7726449","url":null,"abstract":"Since December of 1983, there have been several failures of large power transformers attributed to the static electrification phenomena that have been brought to the attention of Texas Power & Light Company. Two of these failures were ours. Prior to December of 1983, numerical statistics describing failures from static electrification are apparently not readily accessible. IEEE and other reference literature addressed the phenomena, but the magnitude of the problem cannot be quantified in terms of numbers of failures.","PeriodicalId":354533,"journal":{"name":"Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134179174","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: 76
Nanosecond surface discharge study using computer simulation method 纳秒级表面放电的计算机模拟研究
Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986 Pub Date : 1986-11-01 DOI: 10.1109/CEIDP.1986.7726429
M. Tanaka, Y. Murooka, K. Hidaka
{"title":"Nanosecond surface discharge study using computer simulation method","authors":"M. Tanaka, Y. Murooka, K. Hidaka","doi":"10.1109/CEIDP.1986.7726429","DOIUrl":"https://doi.org/10.1109/CEIDP.1986.7726429","url":null,"abstract":"The nanosecond surface discharge phenomena have been analytically studied using a simulation model. By taking the photoelectric effect on insulation surfaces into the ordinary simulation model, it was possible to explain theoretically the experimental results [1∼ 3].","PeriodicalId":354533,"journal":{"name":"Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986","volume":"194 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124325110","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
Influence of oil quality on field distortion in transformer oil under DC stress 直流应力下油质对变压器油场畸变的影响
Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986 Pub Date : 1986-11-01 DOI: 10.1109/CEIDP.1986.7726455
U. Gäfvert, Håkan Kols, Jan Marinko
{"title":"Influence of oil quality on field distortion in transformer oil under DC stress","authors":"U. Gäfvert, Håkan Kols, Jan Marinko","doi":"10.1109/CEIDP.1986.7726455","DOIUrl":"https://doi.org/10.1109/CEIDP.1986.7726455","url":null,"abstract":"High resolution electro-optic Kerr measurements are used to study the electric field distribution in transformer oil under DC stress. Significant space charge effects are found in particular in aged oil. Oils with different aromatic contents have been studied but there is no obvious relationship between this content and space charge. The results are discussed in terms of a simple model based on charge carrier generation mainly by dissociation of ion pairs in the bulk of the liquid.","PeriodicalId":354533,"journal":{"name":"Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986","volume":"877 26","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120878627","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
Polarization effects in PVB, Tedlar, and in a PVB/Tedlar composite as a function of humidity PVB、Tedlar以及PVB/Tedlar复合材料的偏振效应随湿度的变化
Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986 Pub Date : 1986-11-01 DOI: 10.1109/CEIDP.1986.7726440
R. Doran, A. Primatic, J. Orehotsky
{"title":"Polarization effects in PVB, Tedlar, and in a PVB/Tedlar composite as a function of humidity","authors":"R. Doran, A. Primatic, J. Orehotsky","doi":"10.1109/CEIDP.1986.7726440","DOIUrl":"https://doi.org/10.1109/CEIDP.1986.7726440","url":null,"abstract":"Polarization effects in polyvinyl butyral (PVB), Tedlar (T) and in a PVB/T laminated composite have been investigated as a function of humidity by monitoring the time dependence of the current response to a step voltage forcing function. The current response in PVB, particularly at elevated humidities, exhibits an apparent two stage, power law, time dependence which suggests that the current response at all humidity levels could be modeled as the sum of two simultaneously occuring absorption current components Iw and Ip each characterized by a power law time dependence: The Iw absorption current component with its associated Iwo and αw kinetic parameters is believed to be governed by the polarization of the PVB dielectric due to the relatively rapid alignment of water molecules in any absorbed water that exists as a second phase in the free volume space of the PVB. The kinetically slower Ip absorption current component, characterized by the Ip0 and αp parameters, is suggested to result from the more gradual polarization of the PVB dielectric due to polar molecules in the polymer primary phase network. The current response characteristics in Tedlar and in PVB/T differ significantly from that observed in PVB, and could not be easily characterized by the water and polymer absorption current component model used to analyze the PVB data.","PeriodicalId":354533,"journal":{"name":"Conference on Electrical Insulation & Dielectric Phenomena — Annual Report 1986","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1986-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121154046","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
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