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ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117)最新文献

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Influence of PD rest time on /spl phi/-q-n patterns from voids PD休息时间对孔洞/spl phi/-q-n模式的影响
ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955522
Kenji Ijichi, A. Kojima, F. Komori, Y. Suzuoki
{"title":"Influence of PD rest time on /spl phi/-q-n patterns from voids","authors":"Kenji Ijichi, A. Kojima, F. Komori, Y. Suzuoki","doi":"10.1109/ICSD.2001.955522","DOIUrl":"https://doi.org/10.1109/ICSD.2001.955522","url":null,"abstract":"To understand the mechanism of transition of PD characteristics with material aging is important for PD diagnosis. In the aging process, two typical /spl phi/-q-n (phase-charge-number) patterns with turtle-like and rabbit-like shapes, respectively, can be observed. In this paper, the effect of rest time on PD behavior is studied by changing the shape of the waveform. Comparative study on PD from a void between two metal surfaces is also carried out, in which the discharge area of every PD is equal to the metal surface, and the influence of the variation of PD discharge areas can be neglected.","PeriodicalId":239585,"journal":{"name":"ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116038175","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
Study of the space charges profiles for different XLPE insulations of high voltage cables 高压电缆不同交联聚乙烯绝缘的空间电荷分布研究
ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955708
G. Platbrood, S. Agnel, A. Toureille
{"title":"Study of the space charges profiles for different XLPE insulations of high voltage cables","authors":"G. Platbrood, S. Agnel, A. Toureille","doi":"10.1109/ICSD.2001.955708","DOIUrl":"https://doi.org/10.1109/ICSD.2001.955708","url":null,"abstract":"In Belgium, two types of cables with different compositions have been installed for underground transmission of electricity, namely XLPE (cross linked polyethylene) and XLPE-EA copolymerised with ethylacrylate. Part of the study was devoted to obtain a better characterisation of their capacity to store space charges. The ultimate objective will be to compare the cable laid in the ground after some years ageing with the reference cable, in order to evaluate their evolution. More than thirty cables have been measured by the thermal step method (TSM) so that statistical results can be presented.","PeriodicalId":239585,"journal":{"name":"ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114772004","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
Enhancement of photoconductivity and quenching of luminescence in poly(2,5-dialkoxy-p-phenylene vinylene) upon perylene derivative doping 苝衍生物掺杂增强聚(2,5-二氧基-对苯基-乙烯基)的光导性和猝灭性
ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955611
W. Feng, Youlong Xu, Mengjiao Cao, M. Wan, A. Fujii, K. Yoshino
{"title":"Enhancement of photoconductivity and quenching of luminescence in poly(2,5-dialkoxy-p-phenylene vinylene) upon perylene derivative doping","authors":"W. Feng, Youlong Xu, Mengjiao Cao, M. Wan, A. Fujii, K. Yoshino","doi":"10.1109/ICSD.2001.955611","DOIUrl":"https://doi.org/10.1109/ICSD.2001.955611","url":null,"abstract":"We prepared a soluble polymer-dye composite of poly(2,5-dialkoxy-p-phenylene vinylene) and N,N'-diphenyl glyoxaline -3,4,9,10-perylene tetracarboxylic acid diacidamide (ROPPV-PV) as a new class of organic semiconducting material that would be available for photovoltaic cells. Photocells made of the composites exhibited enhanced photosensitivity at 400-600 nm and 675-800 nm. The enhanced photoconductivity and strongly quenched PL were explained by efficient photoinduced charge separation at the interface between ROPPV and PV in the composite films. Formation of PV network is interpreted to contribute for electron migration to the electrode. More higher photoconductivity could be got by mixing PV and C/sub 60/ into conducting polymers.","PeriodicalId":239585,"journal":{"name":"ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128108882","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 electrical properties of filled epoxy resin systems - a comparison 填充环氧树脂体系的电性能比较
ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955538
J. Mackersie, M. Given, S. MacGregor, R. Fouracre
{"title":"The electrical properties of filled epoxy resin systems - a comparison","authors":"J. Mackersie, M. Given, S. MacGregor, R. Fouracre","doi":"10.1109/ICSD.2001.955538","DOIUrl":"https://doi.org/10.1109/ICSD.2001.955538","url":null,"abstract":"The electrical properties of an epoxy resin system for use as machine insulation containing either ZnO or Al/sub 2/O/sub 3/ fillers have been investigated. The fillers impart non-linear current-voltage characteristics to the materials. The electrical conductivities of plaques of epoxy containing filler were a function of the applied electric field strength. The current-voltage relationship was dependent on the filler and differed from that for the unfilled material. The current transient as a result of an applied DC step voltage depended on the filler type and applied field strength. Multi-layer, plaque samples of mica-paper, glass-cloth and epoxy resin, with and without ZnO filler, were examined electrically. Current transient measurements allowed the estimation of the dielectric loss from /spl sim/10/sup -5/-10/sup -1/ Hz. Global thermally stimulated depolarisation current (TSDC) spectra were obtained. Partial polarisation spectra at 5/spl deg/C intervals were also obtained from 35-150/spl deg/C for unfilled and 20% ZnO filled samples. The spectra showed significant differences between sample types.","PeriodicalId":239585,"journal":{"name":"ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124373058","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 change in PD current shape and aging by oxidation in void bounded with LDPE PD电流形状变化与与LDPE结合的空穴氧化老化的关系
ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955679
Choong-Sik Kim, Y. Tani, T. Mizutani
{"title":"Correlation between change in PD current shape and aging by oxidation in void bounded with LDPE","authors":"Choong-Sik Kim, Y. Tani, T. Mizutani","doi":"10.1109/ICSD.2001.955679","DOIUrl":"https://doi.org/10.1109/ICSD.2001.955679","url":null,"abstract":"In this paper, the changes of skewness and kurtosis indicating the asymmetry and sharpness of a single PD waveform as well as the usual parameters were investigated for a void bounded with LDPE which was oxidized by ozone in advance. The correlation between the change in PD shape and the aging by a partial discharge was discussed.","PeriodicalId":239585,"journal":{"name":"ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122197720","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
Advanced partial discharge site location in power cables using numeric data processing 采用数值数据处理技术的电力电缆局部放电位置定位
ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955678
B. Quak, F. Wester, E. Gulski, J. Smit, P.N. Seizt
{"title":"Advanced partial discharge site location in power cables using numeric data processing","authors":"B. Quak, F. Wester, E. Gulski, J. Smit, P.N. Seizt","doi":"10.1109/ICSD.2001.955678","DOIUrl":"https://doi.org/10.1109/ICSD.2001.955678","url":null,"abstract":"By means of advanced on-site PD analysis, information about the insulation condition of power cables can be obtained. In the case that at a cable non-accepted PD activity has been measured, it is of importance to locate the discharge site. This paper describes the fundamental problematic of PD pulse propagation and numeric analysis. Furthermore, the application of a practical solution for PD location techniques based on field measurements is discussed.","PeriodicalId":239585,"journal":{"name":"ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131532786","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: 6
Space charge measurements in cables using the PEA method:-signal data processing considerations 用PEA方法测量电缆中的空间电荷:-信号数据处理的考虑
ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955598
M. Fu, G. Chen, A. Davies, J. Head
{"title":"Space charge measurements in cables using the PEA method:-signal data processing considerations","authors":"M. Fu, G. Chen, A. Davies, J. Head","doi":"10.1109/ICSD.2001.955598","DOIUrl":"https://doi.org/10.1109/ICSD.2001.955598","url":null,"abstract":"Acoustic characteristics in the new cable PEA system have been analysed and it has been confirmed theoretically that the new system can provide the same sensitivity and resolution as the curved electrode system. The new system offers several advantages such as easy assembling sample, intimate contacts at the interfaces and its suitability for different sized cables. Several factors that influence the quantitative charge distribution in cable geometry such as divergence (both in pulsed electric stress and acoustic pressure) and attenuation/dispersion of the acoustic wave in thick insulation are discussed. A data processing technique has been developed which considers all of the above factors in order to improve the measurement accuracy both in sensitivity and spatial resolution. The results from the two XPLE power cables with different thermal treatments have demonstrated that the new system, together with data processing algorithms is capable of measuring space charge distribution and its change with the treatments.","PeriodicalId":239585,"journal":{"name":"ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125300748","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: 15
Correlation between space charge and breakdown in XLPE under DC fields 直流电场下XLPE空间电荷与击穿的关系
ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955689
M. Abou Dakka, S. Bamji, A. Bulinski
{"title":"Correlation between space charge and breakdown in XLPE under DC fields","authors":"M. Abou Dakka, S. Bamji, A. Bulinski","doi":"10.1109/ICSD.2001.955689","DOIUrl":"https://doi.org/10.1109/ICSD.2001.955689","url":null,"abstract":"This paper describes the TSM current response of high voltage cable grade XLPE with and without tree retardants subjected to a dc field of 50 kV/mm. The evolution of the space charge distribution is monitored with the time of aging. It is proposed that the changes observed in the behavior of TSM current with the aging time could be used to determine the difference in the operating conditions of various polymeric materials. The advantage of this approach is that it does not require the determination of the actual distribution of space charge in the insulation and thus it could constitute a very simple diagnostic tool.","PeriodicalId":239585,"journal":{"name":"ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121126409","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
Effect of anti-oxidants on space charge in low-density polyethylene 抗氧化剂对低密度聚乙烯空间电荷的影响
ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955602
T. Mizutani, K. Shinmura, Y. Taniguchi, K. Kaneko, M. Ishioka
{"title":"Effect of anti-oxidants on space charge in low-density polyethylene","authors":"T. Mizutani, K. Shinmura, Y. Taniguchi, K. Kaneko, M. Ishioka","doi":"10.1109/ICSD.2001.955602","DOIUrl":"https://doi.org/10.1109/ICSD.2001.955602","url":null,"abstract":"Polyethylene is widely used as insulating material for power cables. Recently, much attention have been paid to the developments of extruded DC power cables. Many papers have been published on space charge in low-density polyethylene (LDPE) and cross-linked polyethylene (XLPE). However, space charge behavior and charge dynamics are very complicated and sensitive to various factors such as physical/chemical structures of LDPE, additives, interfacial conditions, applied field, temperature, and so on. They have not been well understood yet. More research work on space charge behavior in LDPE and effects of these factors on space charge behavior are required to develop high performance DC cables. In this paper, we investigated the effect of anti-oxidants on space charge behavior and DC current in LDPE.","PeriodicalId":239585,"journal":{"name":"ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129951737","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: 4
Aging acceleration of insulating materials for electrical machine windings supplied by PWM in the presence and in the absence of partial discharges 由PWM供电的电机绕组的绝缘材料在存在和不存在局部放电时的老化加速
ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117) Pub Date : 2001-06-25 DOI: 10.1109/ICSD.2001.955625
D. Fabiani, G. Montanari, A. Contin
{"title":"Aging acceleration of insulating materials for electrical machine windings supplied by PWM in the presence and in the absence of partial discharges","authors":"D. Fabiani, G. Montanari, A. Contin","doi":"10.1109/ICSD.2001.955625","DOIUrl":"https://doi.org/10.1109/ICSD.2001.955625","url":null,"abstract":"The speed control of ac-electric motors can be carried out efficiently by adjustable speed drives (ASD), which are constituted by an AC/DC conversion block, a DC filter and a DC/AC inverter representing the core of the whole power converter. A new generation of DC/AC converters for adjustable speed drives, the so-called PWM (Pulse Width Modulation) inverters, has been developed in recent years. It has significant advantages for motor speed control, but has been proved to overstress electrical insulation with respect to the sinusoidal supply. The increase of partial discharge (PD) activity seems to be mainly responsible for the degradation acceleration of motors fed by ASD. In order to investigate the aging behavior, the results of life tests carried out on twisted pairs subjected to 50 Hz and 10 kHz sinusoidal voltage, as well as unipolar and bipolar square pulses, are presented.","PeriodicalId":239585,"journal":{"name":"ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130659890","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: 89
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