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IEEE Transactions on Electrical Insulation最新文献

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XPS spectra of water-tree regions in low-density PE 低密度PE中水树区XPS谱
IEEE Transactions on Electrical Insulation Pub Date : 1993-06-01 DOI: 10.1109/14.236206
J. King, D. Walton, L. Salvati
{"title":"XPS spectra of water-tree regions in low-density PE","authors":"J. King, D. Walton, L. Salvati","doi":"10.1109/14.236206","DOIUrl":"https://doi.org/10.1109/14.236206","url":null,"abstract":"The XPS (X-ray photoelectron spectroscopy) spectra of water-tree regions in low-density polyethylene are reported. Results shown an increase in the oxygen and nitrogen concentrations in treed regions compared to nontreed regions. Peak fitting of the C1s peak suggests the presence of up to 10% of various combined carbon-oxygen species and another 10% of the C-N species. The source of the C-N species is not certain but may be related to subcorona aging. >","PeriodicalId":13105,"journal":{"name":"IEEE Transactions on Electrical Insulation","volume":"17 1","pages":"411-414"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84220885","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
A general multi-stress life model for insulating materials with or without evidence for thresholds 有或没有阈值证据的绝缘材料的一般多应力寿命模型
IEEE Transactions on Electrical Insulation Pub Date : 1993-06-01 DOI: 10.1109/14.236212
L. Simoni, G. Mazzanti, G. Montanari, L. Lefebre
{"title":"A general multi-stress life model for insulating materials with or without evidence for thresholds","authors":"L. Simoni, G. Mazzanti, G. Montanari, L. Lefebre","doi":"10.1109/14.236212","DOIUrl":"https://doi.org/10.1109/14.236212","url":null,"abstract":"A general life model, valid for any type of insulating material, with or without evidence of an electrical threshold at room temperature, is proposed. The definition of threshold is changed; the behavior of materials is classified as threshold or no-threshold according to the value of applied stresses. The electrical gradient-temperature graph is examined, and the relationships between electrical and thermal thresholds are shown. The various life models for electrical and thermal stress used by researchers are examined and discussed. The combined-stress life model for threshold materials is improved by adding to the denominator a cross term which gives rise to a threshold line which is curved instead of straight. The application of the model is outlined, and the results are compared with experimental data obtained for several insulating materials. >","PeriodicalId":13105,"journal":{"name":"IEEE Transactions on Electrical Insulation","volume":"62 1","pages":"349-364"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84478341","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: 47
Streamer formation in perfluoropolyether under impulse conditions 脉冲条件下全氟聚醚中飘带的形成
IEEE Transactions on Electrical Insulation Pub Date : 1993-06-01 DOI: 10.1109/14.236216
H. Yamashita, E. Forster, M. Pompili
{"title":"Streamer formation in perfluoropolyether under impulse conditions","authors":"H. Yamashita, E. Forster, M. Pompili","doi":"10.1109/14.236216","DOIUrl":"https://doi.org/10.1109/14.236216","url":null,"abstract":"A family of perfluorinated fluids that recently has become available, called perfluoropolyethers, contain oxygen in addition to fluorine and carbon and are potentially interesting as electrical insulating fluids. A study of their behavior under electrical pulse conditions is reported. Under the prevailing nonuniform field conditions, the breakdown voltage was lower when the needle was a cathode than when it was an anode. The streamer structures and their inception voltages are studied in some detail. The effect of pressure on the streamer structure is evaluated. >","PeriodicalId":13105,"journal":{"name":"IEEE Transactions on Electrical Insulation","volume":"1 1","pages":"324-329"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87936141","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: 22
Theory of a defect-tolerant dielectric system 容缺陷电介质系统理论
IEEE Transactions on Electrical Insulation Pub Date : 1993-06-01 DOI: 10.1109/14.236211
S. Boggs
{"title":"Theory of a defect-tolerant dielectric system","authors":"S. Boggs","doi":"10.1109/14.236211","DOIUrl":"https://doi.org/10.1109/14.236211","url":null,"abstract":"The properties of a dielectric for which the resistivity is an exponential function of electric field are examined. It is shown that such a dielectric exhibits a limiting electric field when applied to an AC system. The thermal characteristics of a small conducting stress enhancement in this system are examined to demonstrate thermal stability for power frequency applications. >","PeriodicalId":13105,"journal":{"name":"IEEE Transactions on Electrical Insulation","volume":"9 1","pages":"365-371"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80711954","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: 24
Elimination of surface leader and increase in flashover strength by use of hollow insulators 采用空心绝缘子消除表面引线，提高闪络强度
IEEE Transactions on Electrical Insulation Pub Date : 1993-06-01 DOI: 10.1109/14.236210
Y. Yamano
{"title":"Elimination of surface leader and increase in flashover strength by use of hollow insulators","authors":"Y. Yamano","doi":"10.1109/14.236210","DOIUrl":"https://doi.org/10.1109/14.236210","url":null,"abstract":"The study of gaseous discharges leads one to the surface streamer channel. If the propagation of the generated streamer could be interrupted by some method, the surface leader would be eliminated. To achieve high reliability of HV insulation, a method is established for elimination of negative leaders, even when the streamers appear. A hollow insulator is designed to interrupt the streamer's propagation. Surface insulation abilities are studied using the hollow insulator. The elimination of negative surface leaders and increase in flashover voltage under AC voltage in air are reported. >","PeriodicalId":13105,"journal":{"name":"IEEE Transactions on Electrical Insulation","volume":"69 1","pages":"372-378"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77868159","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: 10
Discharges in all-PP film model capacitors 全pp薄膜型电容器的放电
IEEE Transactions on Electrical Insulation Pub Date : 1993-06-01 DOI: 10.1109/14.236217
M. Nemamcha, J. Gosse, B. Gosse
{"title":"Discharges in all-PP film model capacitors","authors":"M. Nemamcha, J. Gosse, B. Gosse","doi":"10.1109/14.236217","DOIUrl":"https://doi.org/10.1109/14.236217","url":null,"abstract":"Discharges in model capacitors made of polypropylene impregnated with an organic liquid are studied with a digital analyzer. The effect of the nature of the liquid (aliphatic or aromatic hydrocarbon) and the influence of parameters such as voltage, pressure and temperature on the main characteristics of the discharges are investigated. Discharges were monitored during aging tests of the models. It is concluded that aging of the models tested at high electric fields ( approximately 135 V/ mu m) is not due to discharges but to the chemical degradation of polypropylene due electrical and thermal stresses. >","PeriodicalId":13105,"journal":{"name":"IEEE Transactions on Electrical Insulation","volume":"17 1","pages":"315-323"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81515227","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: 12
Detection of tracking carbon path using visual and thermal images (Discussion, with reply by M. Nishida et al.) 使用视觉和热图像检测跟踪碳路径(讨论，由M. Nishida等人回复)
IEEE Transactions on Electrical Insulation Pub Date : 1993-06-01 DOI: 10.1109/14.236203
J. H. Mason, K. Mathes, B. Varlow, M. Nishida
{"title":"Detection of tracking carbon path using visual and thermal images (Discussion, with reply by M. Nishida et al.)","authors":"J. H. Mason, K. Mathes, B. Varlow, M. Nishida","doi":"10.1109/14.236203","DOIUrl":"https://doi.org/10.1109/14.236203","url":null,"abstract":"The discussers separately address questions raised in the above-titled paper by M. Nishida et al. (ibid., vol.27, p.1050-1053, 1982) concerning tracking test procedures. The three discussers agree that there is a need to revise IEC 587. Nishida replies that the above paper did not intend to evaluate the tracking resistance of the electrical insulating materials, or to offer any information for a revision of IEC 587. >","PeriodicalId":13105,"journal":{"name":"IEEE Transactions on Electrical Insulation","volume":"16 1","pages":"425-428"},"PeriodicalIF":0.0,"publicationDate":"1993-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74727623","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
Breakdown of SF/sub 6/ in non-uniform field gaps under combined DC fast oscillating impulse and standard lightning impulse voltages 直流快速振荡冲击和标准雷击电压联合作用下SF/sub 6/在非均匀场隙击穿
IEEE Transactions on Electrical Insulation Pub Date : 1993-04-01 DOI: 10.1109/14.212250
K. Siodła, E. Kuffel, H. Fujinami
{"title":"Breakdown of SF/sub 6/ in non-uniform field gaps under combined DC fast oscillating impulse and standard lightning impulse voltages","authors":"K. Siodła, E. Kuffel, H. Fujinami","doi":"10.1109/14.212250","DOIUrl":"https://doi.org/10.1109/14.212250","url":null,"abstract":"Breakdown and voltage-time characteristics of nonuniform field gaps in compressed SF/sub 6/ gas were studied using a point-to-plane electrode arrangement. Combined voltages, consisting of very fast transient (VFT) overvoltage and standard lightning impulse (SLI) voltage superimposed upon DC voltage, were applied. The experimental gas pressure ranged from 100 to 500 kPa. The results presented show that the magnitude and the polarity of the direct voltage, as well as the gas pressure, influence the corona discharge and the breakdown characteristics. It was found that the breakdown voltages under the VFT are higher than the corresponding values obtained under SLI voltages. At the higher gas pressures, the voltage-time characteristics of VFT fall below those for SLI. >","PeriodicalId":13105,"journal":{"name":"IEEE Transactions on Electrical Insulation","volume":"1 1","pages":"253-260"},"PeriodicalIF":0.0,"publicationDate":"1993-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73123384","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: 8
The effect of a metallic particle near a spacer on flashover phenomena in SF/sub 6/ 靠近间隔的金属颗粒对SF/ sub6 /中闪络现象的影响
IEEE Transactions on Electrical Insulation Pub Date : 1993-04-01 DOI: 10.1109/14.212247
B. Mazurek, J. Cross, R. V. Heeswijk
{"title":"The effect of a metallic particle near a spacer on flashover phenomena in SF/sub 6/","authors":"B. Mazurek, J. Cross, R. V. Heeswijk","doi":"10.1109/14.212247","DOIUrl":"https://doi.org/10.1109/14.212247","url":null,"abstract":"A study of the flashover mechanism initiated by metallic particles in SF/sub 6/ gas is presented. Using a high-speed Imacon photographic camera, it was established that a metallic particle near the insulator surface plays an important role in flashover development. The influence of the particle on flashover development depends on the pressure of the SF/sub 6/ gas. At atmospheric pressure, the flashover was always initiated at a point on the particle farthest from the nearest electrode. At high pressures, it was found that breakdown develops from the electrode of relative positive polarity in the form of a leader. The velocity of the discharge crossing the gap increases exponentially when the distance between the particle and the insulator surface decreases. >","PeriodicalId":13105,"journal":{"name":"IEEE Transactions on Electrical Insulation","volume":"16 1","pages":"219-229"},"PeriodicalIF":0.0,"publicationDate":"1993-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74016712","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: 23
The morphology and behavior of the water tree 水树的形态和行为
IEEE Transactions on Electrical Insulation Pub Date : 1993-04-01 DOI: 10.1109/14.212252
J. L. Chen, J. Filippini
{"title":"The morphology and behavior of the water tree","authors":"J. L. Chen, J. Filippini","doi":"10.1109/14.212252","DOIUrl":"https://doi.org/10.1109/14.212252","url":null,"abstract":"The internal structure of water trees is examined in detail, particularly the nonuniformity of their internal structure. The quantitative space distribution of bouquets and microcavities is given. Based on the fact that the water tree is composed of a number of microcavities filled with liquid, the authors analyze the behavior of water trees, i.e., the dielectric properties of the zone of the water tree and its influence on the distribution of the dielectric field. An interpretation of the development of the water tree is proposed and a possible cause of water-tree-induced breakdown is suggested. >","PeriodicalId":13105,"journal":{"name":"IEEE Transactions on Electrical Insulation","volume":"12 1","pages":"271-286"},"PeriodicalIF":0.0,"publicationDate":"1993-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83148214","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: 63
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