Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)最新文献_第3页

Diagnostic markers for AC power cable insulation aging based on space charge measurements 基于空间电荷测量的交流电缆绝缘老化诊断标志

Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316) Pub Date : 2002-04-07 DOI: 10.1109/ELINSL.2002.995975

G. Montanari, Davide Fabiani, M. Melloni, F. Palmieri

引用次数: 6

Distributed PD measurement on power underground cables 电力地下电缆分布式局部放电测量

Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316) Pub Date : 2002-04-07 DOI: 10.1109/ELINSL.2002.995880

V. R. Garcia-Colon

引用次数: 6

Diagnostic testing of MV XLPE cables with low density of water trees 低水树密度中压交联聚乙烯电缆的诊断试验

Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316) Pub Date : 2002-04-07 DOI: 10.1109/ELINSL.2002.995892

S. Hvidsten, J. T. Benjaminsen

引用次数: 18

Standardized and nonstandardized ageing tests for indoor switchgear and switchgear components under severe climatic conditions 室内开关设备和开关设备部件在恶劣气候条件下的标准化和非标准化老化试验

Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316) Pub Date : 2002-04-07 DOI: 10.1109/ELINSL.2002.995944

S. Keim, D. Koenig, M. Eiselt, M. Kluge

{"title":"Standardized and nonstandardized ageing tests for indoor switchgear and switchgear components under severe climatic conditions","authors":"S. Keim, D. Koenig, M. Eiselt, M. Kluge","doi":"10.1109/ELINSL.2002.995944","DOIUrl":"https://doi.org/10.1109/ELINSL.2002.995944","url":null,"abstract":"In this paper ageing tests focussed on indoor switchgear respective on their core components are described. These tests aim at simulating severe environmental stresses and are recommended to be performed for switchgear which has to operate in a harsh indoor climate. Standardized and nonstandardized test procedures are compared on the basis of experimental experience. IEC Report 932 deals with requirements for enclosed switchgear and control gear from 1 kV to 72.5 kV, to be used in severe climatic indoor conditions and considers the environmental stress factor condensation and pollution. Different test procedures proposed in EEC Report 932 will be illustrated and relevant tests are performed on newly developed medium voltage switchgear NXAir P in the High Voltage Laboratories at Darmstadt University of Technology in cooperation with Siemens AG, Power Transmission and Distribution, Frankfurt. The objective or the presented paper is to evaluate the performance of the insulating components under harsh operating conditions by performing an ageing test.","PeriodicalId":10532,"journal":{"name":"Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)","volume":"1 1","pages":"331-335"},"PeriodicalIF":0.0,"publicationDate":"2002-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76481441","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: 0

The relationship between the estimated intensity of electrical current flowing in the electrolyte and the propagation of the local discharge on an electrolytic surface under AC voltage 在交流电压作用下，电解液中电流的估计强度与电解液表面局部放电传播之间的关系

Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316) Pub Date : 2002-04-07 DOI: 10.1109/ELINSL.2002.995922

B. Zegnini, D. Mahi

{"title":"The relationship between the estimated intensity of electrical current flowing in the electrolyte and the propagation of the local discharge on an electrolytic surface under AC voltage","authors":"B. Zegnini, D. Mahi","doi":"10.1109/ELINSL.2002.995922","DOIUrl":"https://doi.org/10.1109/ELINSL.2002.995922","url":null,"abstract":"The concept of the estimated intensity of the electrical current flowing in the electrolyte enables one to check the advancement of the leader of the discharge according to time. We observed the extension of a discharge on an electrolyte surface by using an original set-up permitting simultaneous measurements of optical and electrical parameters on the same flashover in different points of the discharge path. The resistance per unit length of the conductive film was varied in the range 2 k/spl Omega//cm to 10 k/spl Omega//cm. Experimental results suggest that on the first half of the course that the discharge nearly propagates with a constant instantaneous velocity. It then accelerates its progression on the second half with discontinuities capable to be assigned to progressions by jumps characterizing a change of mechanism of propagating discharge. Our results have been validated by comparison with those published in the literature, which they confirm and often refine. The results bring to the fore the presence, ahead of the principal discharge, of a photoionization zone in which the development can occur of the streamers serving as precursors to its extension.","PeriodicalId":10532,"journal":{"name":"Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)","volume":"2 1","pages":"241-244"},"PeriodicalIF":0.0,"publicationDate":"2002-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88032415","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: 0

Interest and utility of time frequency and time scale transforms in the partial discharges analysis 局部放电分析中时间频率和时间尺度变换的兴趣和效用

Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316) Pub Date : 2002-04-07 DOI: 10.1109/ELINSL.2002.995987

C. Caironi, D. Brie, L. Durantay, A. Rezzoug

引用次数: 12

Reliability of station class surge arresters 站级避雷器的可靠性

Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316) Pub Date : 2002-04-07 DOI: 10.1109/ELINSL.2002.995941

W. McDermid

引用次数: 3

Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316) Pub Date : 2002-04-07 DOI: 10.1109/ELINSL.2002.995877

M. Fenger, B. Lloyd, J. Pedersen

{"title":"Surge related partial discharges resulting from IFDs applied to random wound motors","authors":"M. Fenger, B. Lloyd, J. Pedersen","doi":"10.1109/ELINSL.2002.995877","DOIUrl":"https://doi.org/10.1109/ELINSL.2002.995877","url":null,"abstract":"Random wound stator windings in motors operating in utility and industrial plants through out the world have been reported to suffer from premature winding failures. Although several failure mechanisms exist, some of these failures have been caused by exposure to fast rise-time voltage surges coming from inverter drives. Dissection of failed stator windings have indicated that partial discharges have been a predominate cause of the stator failure. Partial discharges may occur between turns during fast rise-time voltage surges and result in degradation of the organic magnet wire enamel impregnants, eventually resulting in turn-to-turn or phase-to-phase failures. In this paper, measurements of the surge environment for several motors are presented, some of which have suffered stator winding failures. Inspection of the winding after failure showed local melting caused by puncture of the insulation. Utilizing custom PD detection instrumentation and a variable rise-time surge generator, measurements of partial discharge inception voltage (DIV) have been made. Combining the DIV data; with the actual surge environment from inverter drive allows assessment of the risk of motor failure due to PD related insulation breakdown.","PeriodicalId":10532,"journal":{"name":"Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316)","volume":"21 1","pages":"44-48"},"PeriodicalIF":0.0,"publicationDate":"2002-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86190916","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

Partial discharge behavior on PI film with microgap under steep-front step voltage 陡坡前阶跃电压下带微间隙PI膜的局部放电行为

Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316) Pub Date : 2002-04-07 DOI: 10.1109/ELINSL.2002.995867

K. Kimura, S. Itaya, M. Hikita

引用次数: 21

Hybrid conversion scheme for digital measurement of partial discharge spectra 局部放电光谱数字测量的混合转换方案

Conference Record of the the 2002 IEEE International Symposium on Electrical Insulation (Cat. No.02CH37316) Pub Date : 2002-04-07 DOI: 10.1109/ELINSL.2002.995868

YongJun Kim, Ki-Chang Lee, D. Hwang, Doh-Young Park, S. Song

引用次数: 1