2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena最新文献_第5页

Numerical study of the time evolution of finite amplitude electroconvection between two plates using PIC-FE and FCT-FE 利用PIC-FE和FCT-FE对两板间有限振幅电对流的时间演化进行数值研究

2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2008-10-01 DOI: 10.1109/CEIDP.2008.4772900

P. A. Vázquez, G. Georghiou, A. Castellanos

引用次数: 0

Weibull Statistical Dielectric Breakdown in Polyimide up to 400°C 威布尔统计介电击穿在聚酰亚胺高达400°C

2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2008-10-01 DOI: 10.1109/CEIDP.2008.4772832

S. Zelmat, S. Diaham, M. Decup, M. Locatelli, T. Lebey

引用次数: 9

Property Changes of Transformer Oil during Limiting States of Transformer 变压器极限状态下变压器油性质的变化

2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2008-10-01 DOI: 10.1109/CEIDP.2008.4772790

V. Mentlík, J. Michalik, R. Polanský, P. Prosr, M. Brandt

引用次数: 8

The Effect of Temperature and Humidity on Radio Interference Generated from UHV DC Transmission Lines 温度和湿度对特高压直流输电线路无线电干扰的影响

2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2008-10-01 DOI: 10.1109/CEIDP.2008.4772912

Wei Wang, Bing An, Chengrong Li, B. Luo, Xiaolin Li, Yixu Wang, Fei Fan, Boo-gen Yang

引用次数: 2

Evaluation of Pollution Characteristic of Polymer Insulating Material with Surface Nano-Coating by a New Automatic Artificial Pollution Acceleration Test System 用新型自动人工污染加速测试系统评价表面纳米涂层聚合物绝缘材料的污染特性

2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2008-10-01 DOI: 10.1109/CEIDP.2008.4772821

M. Higashikoji, M. Motoyama, S. Ohtsuka, M. Hikita, H. Ikeda, J. Gavillet, G. Ravel, E. da Silva, M. Frechette

{"title":"Evaluation of Pollution Characteristic of Polymer Insulating Material with Surface Nano-Coating by a New Automatic Artificial Pollution Acceleration Test System","authors":"M. Higashikoji, M. Motoyama, S. Ohtsuka, M. Hikita, H. Ikeda, J. Gavillet, G. Ravel, E. da Silva, M. Frechette","doi":"10.1109/CEIDP.2008.4772821","DOIUrl":"https://doi.org/10.1109/CEIDP.2008.4772821","url":null,"abstract":"We have so far performed multistress acceleration test (EdF Test:) for SiR (silicone rubber) insulators, which were found to still keep good hydrophobicity even after 5000 hour testing time equivalent to about 10 years for outdoor exposure test in a heavy polluted area [1]. The two tests' results indicate that one should consider non-soluble material in an accelerated pollution test so as to exactly simulate the practical conditions. From this point of view, we have developed a new automatic artificial pollution acceleration test system (AAPATS) which incorporates non-soluble material pollution to cause hydrophobicity decrease of the surface of SiR under virtually practical environments [2]. We evaluated non-soluble material pollution characteristics of SiR finished with various surface nano-coating processings aiming to enhance hydrophobicity of the material suffering from repeated pollution for a long term. The surface of material in the form of plates was treated with nano-coating by plasma enhanced chemical vapor deposition (PECVD). In this paper, we investigate hydrophobicity improvement properties of SiR material with the surface nanocoating treatment after suffering the repeated non-soluble material pollution by AAPATS.","PeriodicalId":6381,"journal":{"name":"2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":"26 1","pages":"212-215"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87141103","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

Calibration method used for measurements with an open PEA set-up 使用开放式PEA装置进行测量的校准方法

2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2008-10-01 DOI: 10.1109/CEIDP.2008.4772791

V. Griseri, C. Perrin, C. Laurent

引用次数: 3

Electron Density and Temperature Measurement of Arc on an Ice Surface 冰面电弧的电子密度和温度测量

2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2008-10-01 DOI: 10.1109/CEIDP.2008.4772815

A. Nekahi, M. Farzaneh, C. Volat, W. Chisholm

引用次数: 2

Effects of Crystallinity on Thermally Stimulated Current and Complex Permittivity of Poly(L-lactide) 结晶度对聚l -丙交酯热激发电流和复介电常数的影响

2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2008-10-01 DOI: 10.1109/CEIDP.2008.4772773

S. Hikosaka, H. Ishikawa, Y. Ohki

{"title":"Effects of Crystallinity on Thermally Stimulated Current and Complex Permittivity of Poly(L-lactide)","authors":"S. Hikosaka, H. Ishikawa, Y. Ohki","doi":"10.1109/CEIDP.2008.4772773","DOIUrl":"https://doi.org/10.1109/CEIDP.2008.4772773","url":null,"abstract":"Recently poly(L-lactide) synthesized from starch is attracting much attention as a biodegradable polymer. In this paper, effects of crystallinity on dielectric properties of PLLA were studied by preparing four kinds of PLLA samples with different crystallinities. A thermally stimulated polarization current (TSPC) peak was found to appear in all the samples at temperatures around 65 to 70degC, which is due to the glass transition. The magnitude of the TSPC peak was found to be in the reverse order of crystallinity. This is presumably because the segmental-mode relaxation, which brings about the TSPC, is restricted more as the crystallinity increases. All the samples show two thermally stimulated depolarization current (TSDC) peaks at around 65degC and around 90 to 100degC. The lower-temperature peak seems to be due to the segmental-mode relaxation, while the other due to the normal-mode relaxation. Moreover, all the samples show a drastic increase in the real part of complex permittivity and have a peak in its imaginary part at frequencies from 10-1 to 104 Hz, depending on the measurement temperature. The crystallinity dependencies of the two parts are similar to those of the TSPC and TSDC peaks around 65 to 70degC. Therefore, the increase in the real part and the peak in the imaginary part are ascribable to the segmental-mode relaxation.","PeriodicalId":6381,"journal":{"name":"2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":"8 1","pages":"497-500"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85993962","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

Space Charge Profile of TR-XLPE Cables Aged Under Multiple Stresses 多重应力老化TR-XLPE电缆的空间电荷分布

2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2008-10-01 DOI: 10.1109/CEIDP.2008.4772901

J. Ramirez, J. Sanz, E. da Silva, M. Martínez, J. Rodriguez

{"title":"Space Charge Profile of TR-XLPE Cables Aged Under Multiple Stresses","authors":"J. Ramirez, J. Sanz, E. da Silva, M. Martínez, J. Rodriguez","doi":"10.1109/CEIDP.2008.4772901","DOIUrl":"https://doi.org/10.1109/CEIDP.2008.4772901","url":null,"abstract":"In this paper the space charge distribution profile along the thickness of tree-retardant crosslinked polyethylene (TR-XLPE) cables, commonly used in medium voltage system and degraded under multiple factors as temperature, AC and impulse voltages are presented. A comparison of the space charge distribution along the insulation thickness (radial direction) of samples extracted from 15 kV TR-XLPE cables, 2 AWG Cu conductor, manufactured under dry curing process was done. Two 7 m long cable samples were submitted to accelerated ageing; one sample was under thermal stress and the other was under electrothermal factors combining thermal cycles with 25 kV AC voltage applied continuously and impulse voltage transients. Looking at the results it can be concluded that after the first thermal cycle the space charge is reduced in comparison with the profile of the new sample. This confirms that crosslink by-products are expelled under thermal treatments. The space charge density is higher in the central region of the insulator thickness of the new sample and aged samples as well. It is also evident that the electrothermal ageing cycle is more severe because it releases more quantity of space charge along the insulation thickness than the thermal one.","PeriodicalId":6381,"journal":{"name":"2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":"2 1","pages":"333-336"},"PeriodicalIF":0.0,"publicationDate":"2008-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83836203","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

Improving the Performance of a Wildlife Protection Cap by the Use of Salt Fog Testing 利用盐雾测试提高野生动物保护帽的性能

2008 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2008-10-01 DOI: 10.1109/CEIDP.2008.4772852

S. Sebo, R. Otte, J. Moore

引用次数: 0