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Annual Report 1961 Conference on Electrical Insulation最新文献

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Peculiarities observed in series of breakdowns in gases 在气体的一系列分解中观察到的特性
Annual Report 1961 Conference on Electrical Insulation Pub Date : 1961-10-01 DOI: 10.1109/CEI.1961.7473189
B. Eiseman
{"title":"Peculiarities observed in series of breakdowns in gases","authors":"B. Eiseman","doi":"10.1109/CEI.1961.7473189","DOIUrl":"https://doi.org/10.1109/CEI.1961.7473189","url":null,"abstract":"During an extended study of the dielectric strength of gases, some unexpected peculiarities and regularities have been observed. They were of the nature of difficulties or complications encountered in accomplishing the primary objective of measuring dielectric strengths, and have not been investigated completely. It is hoped, in presenting the information, that others may be able to supplement the data and tentative explanations given below.","PeriodicalId":8239,"journal":{"name":"Annual Report 1961 Conference on Electrical Insulation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1961-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87002852","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
Insulation for 500°C motors and generators 用于500°C电机和发电机的绝缘
Annual Report 1961 Conference on Electrical Insulation Pub Date : 1961-10-01 DOI: 10.1109/CEI.1961.7473191
P. Tierney, C. H. Vondracek
{"title":"Insulation for 500°C motors and generators","authors":"P. Tierney, C. H. Vondracek","doi":"10.1109/CEI.1961.7473191","DOIUrl":"https://doi.org/10.1109/CEI.1961.7473191","url":null,"abstract":"Space vehicles of tomorrow must depend on electrical insulation which can function at temperatures up to 500°C. Weight limitations will prevent cooling systems for the electrical equipment. Such a radically new insulation system has already been explored and is briefly described below: The requirements of an insulation system for electrical equipment subjected to 500°C are not only for individual forms of electrical insulation which can be processed but also for a completely compatible system of both insulation and electrical and mechanical components. The individual requirements of the insulation are also outlined.","PeriodicalId":8239,"journal":{"name":"Annual Report 1961 Conference on Electrical Insulation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1961-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79996736","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
The mechanism of the formation of discharges limited by series dielectrics 受串联介质限制的放电形成机理
Annual Report 1961 Conference on Electrical Insulation Pub Date : 1961-10-01 DOI: 10.1109/CEI.1961.7473187
J. Devins
{"title":"The mechanism of the formation of discharges limited by series dielectrics","authors":"J. Devins","doi":"10.1109/CEI.1961.7473187","DOIUrl":"https://doi.org/10.1109/CEI.1961.7473187","url":null,"abstract":"Usually investigations of the nature of electrical discharges in gas voids in solid dielectrics are made using ac voltages or at least voltages changing continuously with time. Owing to statistical time lags this implies that each discharge will occur at a slightly different applied voltage always somewhat larger than the minimum Townsend threshold value. We have recently obtained evidence suggesting that the over-voltage is of considerable significance in determining the nature and magnitude of the discharges.","PeriodicalId":8239,"journal":{"name":"Annual Report 1961 Conference on Electrical Insulation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1961-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74727361","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: 3
Measurements of dielectric constant and loss at 2.2 and 4.3 millimeters wavelength 测量介电常数和损耗在2.2和4.3毫米波长
Annual Report 1961 Conference on Electrical Insulation Pub Date : 1961-10-01 DOI: 10.1109/CEI.1961.7473182
W. Vaughan, W. S. Lovell, C. P. Smyth
{"title":"Measurements of dielectric constant and loss at 2.2 and 4.3 millimeters wavelength","authors":"W. Vaughan, W. S. Lovell, C. P. Smyth","doi":"10.1109/CEI.1961.7473182","DOIUrl":"https://doi.org/10.1109/CEI.1961.7473182","url":null,"abstract":"Paralleling the increasing availability of oscillators, harmonic generators, detectors, and other microwave components that operate at wavelengths extending into the millimeter range, there has been a gradual evolution of techniques for the determination of the dielectric properties of liquids at these frequencies. The present paper aims to provide a general description of the interferometric method that has been developed in this laboratory1–5. Additional details may be found by consulting the original papers.","PeriodicalId":8239,"journal":{"name":"Annual Report 1961 Conference on Electrical Insulation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1961-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82255377","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
An accelerated screening test for polyethylene high-voltage insulation 聚乙烯高压绝缘加速筛选试验
Annual Report 1961 Conference on Electrical Insulation Pub Date : 1961-10-01 DOI: 10.1109/AIEEPAS.1962.4501280
D. W. Kitchin, O. S. Pratt
{"title":"An accelerated screening test for polyethylene high-voltage insulation","authors":"D. W. Kitchin, O. S. Pratt","doi":"10.1109/AIEEPAS.1962.4501280","DOIUrl":"https://doi.org/10.1109/AIEEPAS.1962.4501280","url":null,"abstract":"Cable dielectric failures often start as \"trees\" originating at various kinds of defects in the insulation. A representative reproducible \"standard defect\" like a needle point offers a rapid method of rating polyethylene compounds for relative inherent dielectric strength.","PeriodicalId":8239,"journal":{"name":"Annual Report 1961 Conference on Electrical Insulation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1961-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75161888","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: 26
Investigation of the charge transport in insulating solids 绝缘固体中电荷输运的研究
Annual Report 1961 Conference on Electrical Insulation Pub Date : 1961-10-01 DOI: 10.1109/CEI.1961.7473166
W. Spear
{"title":"Investigation of the charge transport in insulating solids","authors":"W. Spear","doi":"10.1109/CEI.1961.7473166","DOIUrl":"https://doi.org/10.1109/CEI.1961.7473166","url":null,"abstract":"Considerable advances in the understanding of transport phenomena in solids have been made in recent years by the extensive study of semiconducting materials such as Ge and Si. Compared with this development, the large range of more highly insulating solids has received far less attention. At present, little detailed information is available on the mechanism of charge transport, which in some cases appears to be fundamentally different from that normally found in semiconductors.","PeriodicalId":8239,"journal":{"name":"Annual Report 1961 Conference on Electrical Insulation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1961-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91448201","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
Space charges in liquid dielectrics 液体介质中的空间电荷
Annual Report 1961 Conference on Electrical Insulation Pub Date : 1961-10-01 DOI: 10.1109/CEI.1961.7473169
Z. Croitoru, M. Colombeau, R. Coelho
{"title":"Space charges in liquid dielectrics","authors":"Z. Croitoru, M. Colombeau, R. Coelho","doi":"10.1109/CEI.1961.7473169","DOIUrl":"https://doi.org/10.1109/CEI.1961.7473169","url":null,"abstract":"The field distribution in \"technical\" chlorobenzene between parallel electrodes, and its dynamics after application of the voltage have been studied by means of the electrooptic Kerr effect. Figure 1 represents the optical set up, composed of a light source 1 (mercury lamp or sliding spark), a vertical slit 2, in the focal plane of a collimator 3, an interference filter 4 followed by a polarizer 5 oriented at 45°, the Kerr cell 6, a quarter-wave plate a rotary power compensator 8, an analyzer 9 and finally a photosensitive surface 10.","PeriodicalId":8239,"journal":{"name":"Annual Report 1961 Conference on Electrical Insulation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1961-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78906783","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: 3
Analysis of complex hydrocarbons by simple tests 用简单的试验分析复杂的碳氢化合物
Annual Report 1961 Conference on Electrical Insulation Pub Date : 1961-10-01 DOI: 10.1109/CEI.1961.7473194
F. Doble
{"title":"Analysis of complex hydrocarbons by simple tests","authors":"F. Doble","doi":"10.1109/CEI.1961.7473194","DOIUrl":"https://doi.org/10.1109/CEI.1961.7473194","url":null,"abstract":"A paper by the author, presented at the 1959 Annual Meeting of the Conference on Electrical Insulation, described physical and electrical tests developed in the Doble Engineering Company laboratory as accelerated means for evaluating the life service of electrical insulating oils. The physical test uses the Doble oxidizer (ASTM D1904-61T), which has as its end point the first visual appearance of sludge. The electrical test (PFVO) continuously measures and records power factor values throughout the oxidation cycle, which permits a graphic presentation of the characteristics of the oil sample.","PeriodicalId":8239,"journal":{"name":"Annual Report 1961 Conference on Electrical Insulation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1961-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74056581","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
On the electrical conduction in liquid dielectrics 论液体介质的导电
Annual Report 1961 Conference on Electrical Insulation Pub Date : 1961-10-01 DOI: 10.1109/CEI.1961.7473172
R. Coelhao
{"title":"On the electrical conduction in liquid dielectrics","authors":"R. Coelhao","doi":"10.1109/CEI.1961.7473172","DOIUrl":"https://doi.org/10.1109/CEI.1961.7473172","url":null,"abstract":"The current-voltage d.c, characteristics of several saturated acyclic hydrocarbons (n-C<inf>5</inf>H<inf>12</inf>, n-C<inf>6</inf>H<inf>14</inf> and n-C<inf>6</inf>H<inf>16</inf>) have been studied in a coaxial electrode arrangement previously described and providing a high field-gradient between the inner (thin wire) and the outer electrode. The liquids were tested after various stages of purification, and under both polarities of the cell. Before any measurement was taken, the cell was carefully conditioned under a high voltage which was increased gradually. After a one-week conditioning, stable, reproducible currents were usually observed.","PeriodicalId":8239,"journal":{"name":"Annual Report 1961 Conference on Electrical Insulation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1961-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76651405","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
Gamma-ray photoconductivity in polyethylene, polystyrene, amd an epoxy formulation 聚乙烯、聚苯乙烯和环氧树脂配方中的伽马射线光电导率
Annual Report 1961 Conference on Electrical Insulation Pub Date : 1961-10-01 DOI: 10.2172/4813835
S. E. Harrison, A. W. Snyder
{"title":"Gamma-ray photoconductivity in polyethylene, polystyrene, amd an epoxy formulation","authors":"S. E. Harrison, A. W. Snyder","doi":"10.2172/4813835","DOIUrl":"https://doi.org/10.2172/4813835","url":null,"abstract":"The photoconductivity properties of polyethylene, polystyrene, and an epoxy formulation have been measured at gamma-ray intensities in the range 1.0 rad (H2O)/min to 3.0 × 105 rads (H2O)/min. The source of gamma radiation has been the fission product inventory of reactor fuel elements. Measurements of the photoconductivities have been made at controlled temperatures.","PeriodicalId":8239,"journal":{"name":"Annual Report 1961 Conference on Electrical Insulation","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1961-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89822316","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
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