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1976 IEEE International Conference on Electrical Insulation最新文献

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Breakdown streamers in coronas with heated discharge electrode 用加热放电电极击穿电晕中的流光
1976 IEEE International Conference on Electrical Insulation Pub Date : 1977-06-01 DOI: 10.1109/TEI.1977.298027
M. Awad, G. Castle
{"title":"Breakdown streamers in coronas with heated discharge electrode","authors":"M. Awad, G. Castle","doi":"10.1109/TEI.1977.298027","DOIUrl":"https://doi.org/10.1109/TEI.1977.298027","url":null,"abstract":"Experiments were carried out on wire-tube corona apparatus to measure the sparkover voltage and the maximum pre-sparking corona current with and without heating the discharge electrode. Positive and negative polarities were employed on discharge electrodes of different diameters in clean air at room temperature.","PeriodicalId":202788,"journal":{"name":"1976 IEEE International Conference on Electrical Insulation","volume":"1 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121016098","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
On the dielectric strength of synthetic electrical insulating materials 论合成电绝缘材料的介电强度
1976 IEEE International Conference on Electrical Insulation Pub Date : 1977-04-01 DOI: 10.1109/TEI.1977.297967
J. Swanson, F. Dall
{"title":"On the dielectric strength of synthetic electrical insulating materials","authors":"J. Swanson, F. Dall","doi":"10.1109/TEI.1977.297967","DOIUrl":"https://doi.org/10.1109/TEI.1977.297967","url":null,"abstract":"This paper reports the results of research aimed at finding a relationship between dielectric strength and other material properties. The variables investigated were dielectric constant, dissipation factor, volume resistivity and glass transition temperature. The “best fit” equation contained only the first three variables. This equation had a correlation coefficient of 0.87. It is proposed that this correlation could be improved if atomic ionization potentials and molecular free volumes were included as variables in the dielectric strength relationship.","PeriodicalId":202788,"journal":{"name":"1976 IEEE International Conference on Electrical Insulation","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133397663","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: 15
DC treeing breakdown associated with space charge formation in polyethylene 聚乙烯中与空间电荷形成有关的直流树形击穿
1976 IEEE International Conference on Electrical Insulation Pub Date : 1977-02-01 DOI: 10.1109/TEI.1977.298002
M. Ieda, M. Nawata
{"title":"DC treeing breakdown associated with space charge formation in polyethylene","authors":"M. Ieda, M. Nawata","doi":"10.1109/TEI.1977.298002","DOIUrl":"https://doi.org/10.1109/TEI.1977.298002","url":null,"abstract":"It is well known that the space charge accumulation gives a great influence on both the short-time and long-time breakdown strengths for the de plastic insulation system.","PeriodicalId":202788,"journal":{"name":"1976 IEEE International Conference on Electrical Insulation","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127692644","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: 86
Application of the Equalized Ageing Process method on thermal endurance testing of polyhydantoin film 均匀老化法在聚脲膜热耐久性测试中的应用
1976 IEEE International Conference on Electrical Insulation Pub Date : 1977-02-01 DOI: 10.1109/TEI.1977.298011
P. Paloniemi, Paul Lindström
{"title":"Application of the Equalized Ageing Process method on thermal endurance testing of polyhydantoin film","authors":"P. Paloniemi, Paul Lindström","doi":"10.1109/TEI.1977.298011","DOIUrl":"https://doi.org/10.1109/TEI.1977.298011","url":null,"abstract":"Thermal endurance test results on polyhydantoin film are presented, performed both in the conventional atmospheric conditions and in the conditions fulfilling the requirements for the equalized ageing process. The basic principle of the Equalized Ageing Process method (EAP) for thermal endurance testing of solid electrical insulating materials is to make the ageing process at the test temperature equal to that at the service temperature, by changing the test atmosphere appropriately. In an equalized ageing process all the chemical ageing reactions are accelerated equally.","PeriodicalId":202788,"journal":{"name":"1976 IEEE International Conference on Electrical Insulation","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1977-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116260364","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: 9
Behavior of air pockets in an oil-filled insulation system 充油绝缘系统中气穴的特性
1976 IEEE International Conference on Electrical Insulation Pub Date : 1976-06-14 DOI: 10.1109/EIC.1976.7464220
A. E. Baker, R. W. Orr, E. Povey
{"title":"Behavior of air pockets in an oil-filled insulation system","authors":"A. E. Baker, R. W. Orr, E. Povey","doi":"10.1109/EIC.1976.7464220","DOIUrl":"https://doi.org/10.1109/EIC.1976.7464220","url":null,"abstract":"Failures of high-voltage oil-polypropylene insulated capacitors during operation at 20 kHz were experienced after the capacitors had been filled with new transformer oil. Examination indicated that air pockets trapped in the insulation system during the oil fill had ionized with subsequent damage to the polypropylene. An investigation of the behavior of ionizing air pockets was carried out by means of a model capacitor. A conducting glass electrode permitted visual observation of the conditions in the air pockets. Radically different behavior was noted depending on the type of transformer oil used.","PeriodicalId":202788,"journal":{"name":"1976 IEEE International Conference on Electrical Insulation","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128621181","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 the fines on the dielectric and tensil breakdown of oil-impregnated paper 细粒对油浸纸介电击穿和拉伸击穿的影响
1976 IEEE International Conference on Electrical Insulation Pub Date : 1976-06-14 DOI: 10.1109/EIC.1976.7464171
M. Murata, Kōjirō Nakata
{"title":"Influence of the fines on the dielectric and tensil breakdown of oil-impregnated paper","authors":"M. Murata, Kōjirō Nakata","doi":"10.1109/EIC.1976.7464171","DOIUrl":"https://doi.org/10.1109/EIC.1976.7464171","url":null,"abstract":"The ideal composition of fibers for insulating paper has been clarified by investigating the influence of the shape of fines on dielectric and tensil breakdown of oil-impregnated Kraft paper for OF cable (at oil pressure 1kg/cm2). Furthermore, the pulp refining methods for producing such insulating paper has been developed.","PeriodicalId":202788,"journal":{"name":"1976 IEEE International Conference on Electrical Insulation","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123604569","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
Hazards of interpretation of dissipation-factor tip-up determinations 耗散因子倾斜度测定解释的危险
1976 IEEE International Conference on Electrical Insulation Pub Date : 1976-06-14 DOI: 10.1109/EIC.1976.7464181
D. Johnston, N. Gjaja
{"title":"Hazards of interpretation of dissipation-factor tip-up determinations","authors":"D. Johnston, N. Gjaja","doi":"10.1109/EIC.1976.7464181","DOIUrl":"https://doi.org/10.1109/EIC.1976.7464181","url":null,"abstract":"Several contributions to the study of empirical correlation between tip-up and insulation life are reviewed, In addition to the published literature some previously unpublished field measurements made by the authors' Company are cited. Some investigators report favorable correlation while others report the contrary. Our own experience on two different insulation systems indicates that the extent and the kind of correlation is dependent on the kind of insulation system which is being evaluated.","PeriodicalId":202788,"journal":{"name":"1976 IEEE International Conference on Electrical Insulation","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123731142","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
Study of simple models of partial discharges 局部放电的简单模型研究
1976 IEEE International Conference on Electrical Insulation Pub Date : 1976-06-14 DOI: 10.1109/EIC.1976.7464222
R. De Vre, M. Couvreur
{"title":"Study of simple models of partial discharges","authors":"R. De Vre, M. Couvreur","doi":"10.1109/EIC.1976.7464222","DOIUrl":"https://doi.org/10.1109/EIC.1976.7464222","url":null,"abstract":"The paper describes the study of simple experimental models of partial discharges. The characteristics of discharges in point to plane gaps with air or air and solid dielectric, in parallel-plane cells with open air gap and solid dielectric or with artificial voids in the dielectric are studied with a view to contribute to a better interpretation of partial discharges in H. V. equipments.","PeriodicalId":202788,"journal":{"name":"1976 IEEE International Conference on Electrical Insulation","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125628711","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
Some aspects of the electrical behaviour of a cryogenic coaxial wrapped insulation 低温同轴包覆绝缘电性能的某些方面
1976 IEEE International Conference on Electrical Insulation Pub Date : 1976-06-14 DOI: 10.1109/EIC.1976.7464191
J. Breteau, B. Fallou, J. Thoris, J. Bobo
{"title":"Some aspects of the electrical behaviour of a cryogenic coaxial wrapped insulation","authors":"J. Breteau, B. Fallou, J. Thoris, J. Bobo","doi":"10.1109/EIC.1976.7464191","DOIUrl":"https://doi.org/10.1109/EIC.1976.7464191","url":null,"abstract":"The paper summarizes some results obtained recently and relative to different aspects of the electrical bevaviour of a coaxial tape wrapped insulation in helium under high electric stresses and up to breakdown. The effect of various parameters-taping and impregnation- is analysed.","PeriodicalId":202788,"journal":{"name":"1976 IEEE International Conference on Electrical Insulation","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133146626","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
Study of dielectric breakdown of kraft- and aramid-paper impregnated with silicone li0071uid 硅油浸渍牛皮纸和芳纶纸的介电击穿研究
1976 IEEE International Conference on Electrical Insulation Pub Date : 1976-06-14 DOI: 10.1109/EIC.1976.7464198
W. Brooks, T. Orbeck
{"title":"Study of dielectric breakdown of kraft- and aramid-paper impregnated with silicone li0071uid","authors":"W. Brooks, T. Orbeck","doi":"10.1109/EIC.1976.7464198","DOIUrl":"https://doi.org/10.1109/EIC.1976.7464198","url":null,"abstract":"Because of new technical and safety requirements for electrical equipment, silicone liquid is presently being evaluated as a dielectric coolant in transformers. Previous papers have discussed the dielectric properties of the bulk silicone liquid. In this paper, we deal with the dielectric properties of solid kraft paper and aramid paper insulating materials impregnated with silicone liquid.","PeriodicalId":202788,"journal":{"name":"1976 IEEE International Conference on Electrical Insulation","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1976-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121654131","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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