IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena最新文献_第8页

Distribution Of Single-winged And Bow-tie Water Trees In Xlpe Cables 单翼和蝴蝶结水树在Xlpe电缆中的分布

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.634627

J. Jung, R. Patsch

引用次数: 1

Influence of temperature on the hydrophobicity of polymers 温度对聚合物疏水性的影响

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641094

T. Berger, S. Sundhararajan, T. Nagaosa

引用次数: 18

Flashover as an illustration of the charge trapping and detrapping phenomena 闪络是电荷捕获和脱陷现象的一个例子

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641171

G. Damamme, R. Latham

{"title":"Flashover as an illustration of the charge trapping and detrapping phenomena","authors":"G. Damamme, R. Latham","doi":"10.1109/CEIDP.1997.641171","DOIUrl":"https://doi.org/10.1109/CEIDP.1997.641171","url":null,"abstract":"Numerous works have been achieved to sort out the flashover origin. Recent investigations have shown the importance of charge injection at the insulator and metal interface and of the surface treatment on the flashover characteristics. High voltage tests show that at a given voltage the flashover is a quasi periodic phenomenon. By measuring the variation of the current as function of time and observing the insulator surface with a video camera allow to decompose the components of a flashover cycle. First, the current slowly increases. In the steady state the I(V) curve is of Space Charge Limited Current type. Then the current increases, the vacuum may significantly degrade whereas light emitting precursors appear. The emitters can be located anywhere on the surface even they are often observed at the cathode insulator interface. At the last step the discharge occurs over the surface where trapped charges where located. It is proposed that the flashover is due to charge trapping followed by the propagation of a collective detrapping wave that occurs when the density condition for a self sustained detrapping wave propagation is reached, the precursors located at some surface defects being the trigger of the wave.","PeriodicalId":176239,"journal":{"name":"IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124409799","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

Investigation of PD resulting from transformers using the PSA method 用PSA法研究变压器局部放电

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641136

M. Hoof, R. Patsch

引用次数: 4

The influence of dc bias an dielectric properties of thin sputtered tantalum oxide films 直流偏压对溅射氧化钽薄膜介电性能的影响

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.634575

K. Miyairi

引用次数: 1

A study of three-dimensional measurement of pre-breakdown streamer in dielectric liquids 介质液体中预击穿流光的三维测量研究

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641157

S. Otsuki, K. Yamazawa, K. Sugiura, H. Yamashita

引用次数: 1

Measurements of breakdown pressure wave and cathode and anode electric field up to electrical breakdown in PP film PP薄膜电击穿前的击穿压力波及阴极、阳极电场测量

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.634589

M. Fukuma, M. Nagao, M. Kosaki

引用次数: 3

Interacting dipole charges in non-linear dielectrics: a Monte Carlo simulation 非线性介质中相互作用的偶极子电荷:蒙特卡罗模拟

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.634547

H. Kliem, N. Farag

引用次数: 0

Space-charge profiles with high densities in uniform and nonuniform polymer dielectrics 均匀和非均匀聚合物介质中高密度的空间电荷分布

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.634561

W. Kunstler, R. Gerhard-Multhaupt

{"title":"Space-charge profiles with high densities in uniform and nonuniform polymer dielectrics","authors":"W. Kunstler, R. Gerhard-Multhaupt","doi":"10.1109/CEIDP.1997.634561","DOIUrl":"https://doi.org/10.1109/CEIDP.1997.634561","url":null,"abstract":"Rather high space-charge densities were achieved in the bulk of several Teflon fluoropolymers by means of corona charging at an elevated temperature. The resulting electric-field distributions were probed with piezoelectrically generated pressure steps; this technique is particularly well suited for directly measuring spread space-charge distributions in the volume of thin polymer films. From the calibrated pressure-step results, it is possible to estimate space-charge and thus also filled-trap densities; maximum space-charge densities of 600 C/m/sup 3/ corresponding to filled-trap densities of almost 4/spl times/10/sup 15/ cm/sup -3/ were observed on Teflon PFA under the present charging and annealing conditions, while the maximum space-charge densities in the other two Teflon variants were smaller by a factor of up to three. Some typical recent results on positively and negatively corona-charged samples of the three Teflon polymers TFE, FEP, and PFA are presented together with results on two-layer samples consisting of one positively and one negatively charged film, which demonstrate that the charges in the volumes of the individual films are quite well preserved upon mechanical (and electrical) surface contact.","PeriodicalId":176239,"journal":{"name":"IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125357058","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

Correlation between electrical properties and fluid flow in paper insulation 纸绝缘中电性能与流体流动的关系

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641178

B. Nettelblad, C. Tornkvist, M. Bergkvist

引用次数: 0