IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena最新文献_第10页

Charging effects under electron beam injection on sapphire implanted with zirconium ions 锆离子注入蓝宝石电子束下的充电效应

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.634568

A. Berroug, J. Bigarré, S. Fayeulle, D. Tréheux

引用次数: 10

High-voltage DC tests for evaluating stator winding insulation: uniform step, graded step, and ramped test methods 评估定子绕组绝缘的高压直流试验:均匀步进、分级步进和斜坡试验方法

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.634608

L.M. Rux

引用次数: 15

Comparison of cross-linked polyethylene compounds by short-term electrical and thermal tests 交联聚乙烯化合物的短期电和热测试比较

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.634615

G. Montanari, G. Mazzanti, A. Motori, A. Campus, U. Nilsson

引用次数: 3

Numerical modeling of an electron avalanche in oxygen by a particle method 氧中电子雪崩的粒子法数值模拟

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641151

C. Soria, F. Pontiga, A. Castellanos

引用次数: 2

The change of starting potential of short gap discharge as a function of time in N/sub 2/+NO gases N/sub 2/+NO气体中短间隙放电启动电位随时间的变化

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641148

K. Itoyama, T. Nishimura, T. Yanobe

引用次数: 1

Interactions of SOF/sub 2/ with molecular sieve 13X SOF/ sub2 /与分子筛13X的相互作用

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641150

T. Lussier, M. Frechette, R. Larocque

{"title":"Interactions of SOF/sub 2/ with molecular sieve 13X","authors":"T. Lussier, M. Frechette, R. Larocque","doi":"10.1109/CEIDP.1997.641150","DOIUrl":"https://doi.org/10.1109/CEIDP.1997.641150","url":null,"abstract":"Interactions between the SOF/sub 2/ species and molecular sieve type 13X were studied in a SF/sub 6/ gas matrix. Adsorption experiments were performed through single or sequential exposures of pre-humidified and virgin dry samples using gas mixtures prepared at concentration levels varying from 1/spl times/10/sup 4/ to 5/spl times/10/sup 4/ ppm/sub v/. In all cases, the initial total pressure was set at 2 bar abs at 298 K. Based on the results, the 13X was found to adsorb the SOF/sub 2/ and to transform a portion of it into SO/sub 2/. This hydrolysis reaction led to an increasing amount of SO/sub 2/ in the gas phase which was monitored throughout the experiments, The kinetics observed in the early stage of initial exposure suggested an adsorption process controlled by a concentration gradient. The results also revealed that CO/sub 2/ species can be displaced by the SOF/sub 2/. When an amount of water as high as 4/spl times/10/sup 3/ ppm/sub v/ was initially present in the gas phase, the SOF/sub 2//SO/sub 2/ dynamics were not significantly modified. However, the new contaminant was found to be as effectively removed by the sieve as the SOF/sub 2/ species. On the other hand, a sieve which had been pre-humidified through extensive exposure to the ambient air released water when subjected to an SOF/sub 2/ gas mixture, pointing to a preferential SOF/sub 2/ adsorption. Considerations based on the material properties were used to explain the overall phenomena observed.","PeriodicalId":176239,"journal":{"name":"IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":"28 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":"131405020","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

Two complementary techniques: the thermal step technique and the thermally stimulated currents technique. Study of polycrystalline Al/sub 2/O/sub 3/ 两种互补技术:热步进技术和热刺激电流技术。多晶Al/sub 2/O/sub 3/的研究

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.634611

S. Agnel, A. Toureille

引用次数: 3

Investigation of aging rate in polymer films subjected to surface discharges under distorted voltage 畸变电压下表面放电对聚合物薄膜老化速率的影响

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641105

R. Bozzo, C. Gemme, F. Guastavino, G. Montanari

引用次数: 18

Measurement of flow electrification in transformer models and its predetermination by theoretical approach 用理论方法测定变压器模型中的电流起电性及其预估

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641155

D. Suryanarayana, R. Rajaraman, S. Satyanarayana, A.K. Adikesavulu, S. Mukherji

引用次数: 0

An experimental investigation on the degradation characteristic of the outdoor silicone rubber insulator due to sulfate and nitrate ions 硫酸盐和硝酸盐离子对室外硅橡胶绝缘子降解特性的实验研究

IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 1997-10-19 DOI: 10.1109/CEIDP.1997.641088

J. Koo, I. Kim, J.T. Kim, W. Park

{"title":"An experimental investigation on the degradation characteristic of the outdoor silicone rubber insulator due to sulfate and nitrate ions","authors":"J. Koo, I. Kim, J.T. Kim, W. Park","doi":"10.1109/CEIDP.1997.641088","DOIUrl":"https://doi.org/10.1109/CEIDP.1997.641088","url":null,"abstract":"Since 1960, polymer insulator has been employed as an outdoor insulator for high voltage ascribed to its excellent aging characteristics compared to those of ceramic insulator. However, in spite of various investigations related to the polymer insulator, its aging mechanism due to acid rain have not been well elucidated. In this paper, aging characteristics of outdoor silicone rubber insulator resulting from the acid rain have been investigated with regards to sulfuric and nitric solutions. For this purpose, silicone rubber was aged by being immersed in the sulfuric and nitric solutions with different level of pH (5.6, 4.0, 2.5, 1.5) during 1500 hours and various tests were performed such as tracking, contact angle, tan/spl delta/, breakdown voltage, SEM, EDS, FT-IR. Regarding the effect of the acidity of nitric solution, the surface of test samples were slightly damaged up to pH 2.5 and ruined at pH 1.5. However, in case of sulfuric solution, the degree of the surface degradation was observed to be consistently increased. And thus, for the former, it could be expected that there is certain critical value between pH 1.5 and pH 2.5, which likely could induce serious surface degradation For both cases, it was observed that the hydrophobicity and tracking resistance of the silicone rubber insulator are well retained regardless of the acidity of the solution.","PeriodicalId":176239,"journal":{"name":"IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena","volume":"31 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":"123914706","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: 20