IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena最新文献_第3页

Breakdown properties of interpenetrating polymer networks based on epoxy/MA/PU 环氧/MA/PU互穿聚合物网络的击穿性能

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.634579

Kyung-Hwan Kim, Myung-Ho Kim, I. Son, Jae-Hwan Kim

引用次数: 1

Studies on corona power loss and radio interference under different electrode configurations 不同电极结构下电晕功率损耗及无线电干扰的研究

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641146

J. Sinha, B. Jili

{"title":"Studies on corona power loss and radio interference under different electrode configurations","authors":"J. Sinha, B. Jili","doi":"10.1109/CEIDP.1997.641146","DOIUrl":"https://doi.org/10.1109/CEIDP.1997.641146","url":null,"abstract":"Summary form only given. Corona power loss and radio interference has been studied extensively all over the world but most of the studies are confined to EHV transmission systems. Very scanty information is available in the literature about power loss and radio interference due to local corona in machines and apparatus. With the widespread use of computer control and information technology, electromagnetic compatibility (EMC) requirements point towards such information. In this paper, results of an experimental study on the power loss and radio interference due to corona under different electrode configurations have been reported. Both, high voltage AC and DC has been used for the studies. Standard electrode configurations such as sphere gaps, rod-plane, rod-rod etc. has been used, keeping in view that the insulation characteristics of most of the machines and apparatus may be approximated to the characteristics of these configurations. Results for single core and co-axial electrode configuration has also been reported in the paper. In the investigation reported, an attempt has also been made to measure the ultra-sound component of the corona generated noise as well as variation of sound pressure level with distance from different electrode configurations. A comparison of the experimental observations with the analytical values has also been reported in the paper.","PeriodicalId":176239,"journal":{"name":"IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":"30 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":"123669779","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

Determination of a distribution of relaxation frequencies using a combination of time and frequency dielectric spectroscopies 使用时间和频率介电光谱相结合的松弛频率分布的测定

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641115

C. Dias

{"title":"Determination of a distribution of relaxation frequencies using a combination of time and frequency dielectric spectroscopies","authors":"C. Dias","doi":"10.1109/CEIDP.1997.641115","DOIUrl":"https://doi.org/10.1109/CEIDP.1997.641115","url":null,"abstract":"Recently it has been shown that the natural scale for a distribution of relaxation frequencies is a logarithmic one, provided that there is a distribution of activation energies and that these energies are related to frequency through an Arrhenius type equation under isothermal conditions. Under those conditions a new approach to dielectric relaxation has been formulated, enabling the numerical calculation of the distribution of relaxation frequencies underlying the experimental data taken from the time and/or from the frequency domains. In this communication we try to solve the following practical problem: suppose that measurements of permittivity are performed in a certain frequency range [f/sub i/, f/sub f/] while depolarization current measurements are obtained in a given data window [t/sub i/, t/sub f/]. These experimental windows are such that there is a superposition regarding the corresponding windows of the distribution function of relaxation frequencies. We will propose a procedure to extract the overall underlying distribution of relaxation frequencies consistent with both sets of experimental data. It should be pointed out that, while using this approach, careful attention should be paid to the contribution of the conduction current to the imaginary part of dielectric constant which does not appear in a discharge current type of measurement.","PeriodicalId":176239,"journal":{"name":"IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":"7 4 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":"124462697","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: 5

Low molecular weight fluids in EPDM EPDM中的低分子量液体

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641102

Liwen Cao, R. Hackam

引用次数: 5

Computation of thermal, electrical, and mechanical fields at a defect in polyethylene 聚乙烯缺陷处热、电、力学场的计算

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.634584

J. Kuang, S. Boggs

引用次数: 4

Electrostatic characterization of carpets using a corona triode 电晕三极管对地毯静电特性的研究

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641143

R. Altafim, J. Fujiwara, J. Giacometti

引用次数: 3

Study of cathode-directed positive streamers in air by streamer current and luminosity measurements 通过流光电流和光度测量研究空气中阴极导向的正流光

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641142

Lan Gao, V. Cooray, R. Thottappillil, V. Scuka

引用次数: 6

Charge storage in APCVD silicon nitride APCVD氮化硅的电荷存储

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.634559

H. Amjadi, G. Sessler

引用次数: 12

Breakdown in compressed N/sub 2/ under impulse voltages 在脉冲电压下，在压缩N/sub /下击穿

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641147

H. Ismailoğlu, O. Kalenderli, M. Ozkaya, I. Gonenc

引用次数: 3

Prebreakdown and breakdown characteristics of micrometric vacuum gaps between broad area electrodes 大面积电极间微米真空间隙的预击穿及击穿特性

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641141

Xianyun Ma, M. McLester, T. Sudarshan

引用次数: 1