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Conference Record of the 2004 IEEE International Symposium on Electrical Insulation最新文献

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Study on icing of energized insulators with AC service and electrical performance 交流绝缘子带电覆冰及电性能研究
Conference Record of the 2004 IEEE International Symposium on Electrical Insulation Pub Date : 2004-09-19 DOI: 10.1109/ELINSL.2004.1380582
Xingliang Jiang, Zhijin Zhang, L. Shu, Yan Wang, S. Xie
{"title":"Study on icing of energized insulators with AC service and electrical performance","authors":"Xingliang Jiang, Zhijin Zhang, L. Shu, Yan Wang, S. Xie","doi":"10.1109/ELINSL.2004.1380582","DOIUrl":"https://doi.org/10.1109/ELINSL.2004.1380582","url":null,"abstract":"In This work, laboratory investigations were carried out on 110 kV composite insulators, 7 units of an IEC standard suspension porcelain insulator string, and 7 units of a XWP-160 antipollution porcelain insulator string with 64 kV voltages in the multifunction artificial climate chamber of Chongqing University. Based on the test results, it puts forward that there are evident differences in ice accretion speed, ice density and ice structure between energized insulators and nonenergized insulators. The electrical field stress has an important influence on ice type and ice structure accrued on the insulators. Both flashover voltage and withstand voltage of the insulators covered with ice at an energized condition are higher than that at a nonenergized condition. Finally, it analyzes the factors that influence the ice type, structure and the flashover performance of an iced insulator.","PeriodicalId":342687,"journal":{"name":"Conference Record of the 2004 IEEE International Symposium on Electrical Insulation","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129894219","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: 7
Application of statistical summary numbers to rotating machine PD Data for nonexpert identification of multiple aging mechanisms 将统计汇总数应用于旋转机械 PD 数据，以便非专业人员识别多种老化机制
Conference Record of the 2004 IEEE International Symposium on Electrical Insulation Pub Date : 2004-09-19 DOI: 10.1109/ELINSL.2004.1380623
M. Fenger, G. Stone
{"title":"Application of statistical summary numbers to rotating machine PD Data for nonexpert identification of multiple aging mechanisms","authors":"M. Fenger, G. Stone","doi":"10.1109/ELINSL.2004.1380623","DOIUrl":"https://doi.org/10.1109/ELINSL.2004.1380623","url":null,"abstract":"In the past, statistical summary numbers such as skew and kurtosis have been applied to PD data to help establish a diagnostic framework for identifying the type, nature or location of a PD source as well as assessing the insulation health. This paper discusses a framework for applying the mode, mean, standard deviation, skew and kurtosis (advanced summary numbers or ASN for short) to on-line partial discharge (PD) data for the identification of individual PD mechanisms out of a group of multiple discharge mechanisms acting on a set of stator windings. The study shows how simple trending of these advanced summary numbers can help establish relative increases in the individual discharge mechanisms and consequently establish which PD sources constitute the predominant increase in partial discharge activity as evaluated via a normal NQN or Qm trend. Finally, a practical application on the application of ASN will be given.","PeriodicalId":342687,"journal":{"name":"Conference Record of the 2004 IEEE International Symposium on Electrical Insulation","volume":"88 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130756901","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
Principals and field experience with the 0.1 Hz VLF method regarding the test of medium voltage distribution cables 关于中压配电电缆测试0.1 Hz VLF法的原理和现场经验
Conference Record of the 2004 IEEE International Symposium on Electrical Insulation Pub Date : 2004-09-19 DOI: 10.1109/ELINSL.2004.1380602
H. Oetjen
{"title":"Principals and field experience with the 0.1 Hz VLF method regarding the test of medium voltage distribution cables","authors":"H. Oetjen","doi":"10.1109/ELINSL.2004.1380602","DOIUrl":"https://doi.org/10.1109/ELINSL.2004.1380602","url":null,"abstract":"The IEEE standards group is currently addressing the topic of field testing methods for underground power cables. The first step has been accomplished by issuing the IEEE 400 document, which is also referred to as the Omnibus document and serves as the umbrella for all field test methods to be covered under individual standards or user guides within the 400 series of documents. The IEEE 400.1 document will become the new test document covering all field DC test methods. The IEEE 400.2 will address very low frequency AC field test methods, also referred to as VLF test methods. VLF testing is being considered as the safe alternative to DC Hipot testing of XLPE and mixed cables, which will cause premature failures in this type of cable because of the known problem of induced space charges. The paper compares different VLF technologies and discusses the correlation between field test data and test parameters.","PeriodicalId":342687,"journal":{"name":"Conference Record of the 2004 IEEE International Symposium on Electrical Insulation","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130459445","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: 13
Application of corona resistant polyimide film to pump generator stator coils 耐电晕聚酰亚胺薄膜在水泵发电机定子线圈上的应用
Conference Record of the 2004 IEEE International Symposium on Electrical Insulation Pub Date : 2004-09-19 DOI: 10.1109/ELINSL.2004.1380522
J. Timperley, B. Nindra, S. A. Filliben
{"title":"Application of corona resistant polyimide film to pump generator stator coils","authors":"J. Timperley, B. Nindra, S. A. Filliben","doi":"10.1109/ELINSL.2004.1380522","DOIUrl":"https://doi.org/10.1109/ELINSL.2004.1380522","url":null,"abstract":"Corona resistant high performance polyimide film insulation has been applied to the stator windings of a 69 MVA pump-generator. This paper describes the application of this film to wire production, 13 kV stator coil manufacturing and the QA tests applied.","PeriodicalId":342687,"journal":{"name":"Conference Record of the 2004 IEEE International Symposium on Electrical Insulation","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126063722","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
CFO voltage and V-t characteristic of 15 kV polymer suspension insulator under lightning and steep front short duration impulses 雷电和陡锋短时脉冲作用下15kv聚合物悬浮绝缘子的CFO电压和V-t特性
Conference Record of the 2004 IEEE International Symposium on Electrical Insulation Pub Date : 2004-09-19 DOI: 10.1109/ELINSL.2004.1380567
S. Grzybowski, Y. Song, J. Kappenman
{"title":"CFO voltage and V-t characteristic of 15 kV polymer suspension insulator under lightning and steep front short duration impulses","authors":"S. Grzybowski, Y. Song, J. Kappenman","doi":"10.1109/ELINSL.2004.1380567","DOIUrl":"https://doi.org/10.1109/ELINSL.2004.1380567","url":null,"abstract":"The CFO voltage and V-t characteristic of 15 kV polymer suspension insulators are important factors in insulation coordination designing of power distribution systems. Typical insulation designs for distribution feeders usually are based on 1.2/50 /spl mu/s lightning impulse, while insulator behavior under steep front short duration (SFSD) impulse is not concerned. Comparing with lightning impulse, SFSD impulse is more severe and destructive to insulator because of its high voltage magnitude. To study the insulator behavior under different kinds of impulses, both standard lightning impulses and SFSD impulses are generated and applied on selected 15 kV polymer suspension insulators. The generated standard lightning impulse has 1.2 /spl mu/s front and 50 /spl mu/s on the tail to half value of the voltage impulse. The generated SFSD impulse in this study has 60 ns front and less than 200 ns of the tail. In order to measure CFO voltage under SFSD impulses, up and down method as in lightning impulses is developed and used. For each kind of impulse, the CFO voltage and V-t characteristic for 15 kV polymer suspension insulators are evaluated under dry and wet condition with both negative and positive polarity impulses. In order to study the added insulation strength by wood crossarm and to compare the results, all the above mentioned tests are performed again with the 15 kV polymer suspension insulator plus 0.5 foot and later 1 foot wood crossarm.","PeriodicalId":342687,"journal":{"name":"Conference Record of the 2004 IEEE International Symposium on Electrical Insulation","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127718600","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
Partial discharge inception voltage of twisted pair samples under long-time repetitive bipolar impulses 长时间重复双极脉冲作用下双绞线样品的局部放电起始电压
Conference Record of the 2004 IEEE International Symposium on Electrical Insulation Pub Date : 2004-09-19 DOI: 10.1109/ELINSL.2004.1380514
K. Kimura, S. Ushirone, T. Fukushima, S. Ohtsuka, M. Hikita
{"title":"Partial discharge inception voltage of twisted pair samples under long-time repetitive bipolar impulses","authors":"K. Kimura, S. Ushirone, T. Fukushima, S. Ohtsuka, M. Hikita","doi":"10.1109/ELINSL.2004.1380514","DOIUrl":"https://doi.org/10.1109/ELINSL.2004.1380514","url":null,"abstract":"The reliability of inverter-fed motors depends on partial discharge (PD) behavior of stator windings. In this paper we discuss partial discharge inception voltage (PDFV) characteristics of twisted-pair samples under long-time repetitive impulses using optical and electrical PD detection methods. For PDIV measurement, we adopted step-by-step and continuous rise of peak voltage of impulse. The repetitive frequency is 500 Hz. The result suggests that PD can occur even after a long period of time of repetitive impulses. We discuss practical importance of test procedure of PDIV under the special voltage waveforms.","PeriodicalId":342687,"journal":{"name":"Conference Record of the 2004 IEEE International Symposium on Electrical Insulation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132601358","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: 13
Development of MV class transformer with hybrid insulation 混合绝缘中压级变压器的研制
Conference Record of the 2004 IEEE International Symposium on Electrical Insulation Pub Date : 2004-09-19 DOI: 10.1109/ELINSL.2004.1380439
Byung-sung Lee, I. Song, Dong myung Kim, Sang-Ok Han
{"title":"Development of MV class transformer with hybrid insulation","authors":"Byung-sung Lee, I. Song, Dong myung Kim, Sang-Ok Han","doi":"10.1109/ELINSL.2004.1380439","DOIUrl":"https://doi.org/10.1109/ELINSL.2004.1380439","url":null,"abstract":"Pole transformers of MV class have utilized an insulation system consisting of natural cellulose-based materials and mineral oil for many years. If transformers are subjected to rapidly changing overload conditions, insulation materials can see high temperatures leading to unexpected aging. Therefore, we have been conscious of developing a transformer that is more thermally stable than conventional types. To measure temperature distribution in the winding of conventional and newly designed transformers, temperature sensors were installed for direct reading of the transformer oil and conductor temperatures of transformers. We also conducted accelerated aging tests for these transformers. The measurement data was utilized in the design of the hybrid insulation system. Also, we found the possibility of applying this insulation system in 13.2 kV pole mounted transformers.","PeriodicalId":342687,"journal":{"name":"Conference Record of the 2004 IEEE International Symposium on Electrical Insulation","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115361814","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
An online UHF PD monitoring system for power transformers 电力变压器超高频局部放电在线监测系统
Conference Record of the 2004 IEEE International Symposium on Electrical Insulation Pub Date : 2004-09-19 DOI: 10.1109/ELINSL.2004.1380443
Wei Wang, C.R. Li, Z. Tang, Zhili Li, Yansheng Ding
{"title":"An online UHF PD monitoring system for power transformers","authors":"Wei Wang, C.R. Li, Z. Tang, Zhili Li, Yansheng Ding","doi":"10.1109/ELINSL.2004.1380443","DOIUrl":"https://doi.org/10.1109/ELINSL.2004.1380443","url":null,"abstract":"An online UHF PD monitoring system for power transformers has been designed and installed in a 120MVA/220kV power transformer in-service in Henan province of China. The hardware and software of the system are described in detail in this paper. The onsite results show that the online monitoring system has superior performance compared to conventional PD detection system.","PeriodicalId":342687,"journal":{"name":"Conference Record of the 2004 IEEE International Symposium on Electrical Insulation","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114347902","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
Effect of thermally stimulated discharges on partial discharges and tree growth in PMMA 热刺激放电对PMMA部分放电和树木生长的影响
Conference Record of the 2004 IEEE International Symposium on Electrical Insulation Pub Date : 2004-09-19 DOI: 10.1109/ELINSL.2004.1380697
P. Basappa, M.L. Williams, K. Agarwal
{"title":"Effect of thermally stimulated discharges on partial discharges and tree growth in PMMA","authors":"P. Basappa, M.L. Williams, K. Agarwal","doi":"10.1109/ELINSL.2004.1380697","DOIUrl":"https://doi.org/10.1109/ELINSL.2004.1380697","url":null,"abstract":"Treeing is an important aging process, which leads to electrical breakdown of solid dielectrics. A study of literature indicates that trapped charges play a significant role in the initiation and propagation of electrical tree channels. Experiments have been conducted in which charges have been modified by subjecting the samples aged by Partial Discharges (PD) to thermally stimulated discharging (TSD) procedure. Our earlier results have indicated that treeing could be characterized by PDs. The parameters of Weibull distribution are affected by the removal of charges by TSD. The parameters of Weibull distribution are correlated to one another and with time of aging. The parameters also respond to TSDs. Several Weibull plots, TSD curves and a number of microphotographs have been studied. In this work, the variation of bush growth with respect to aging time and variation of charge input with respect to aging time have been investigated.","PeriodicalId":342687,"journal":{"name":"Conference Record of the 2004 IEEE International Symposium on Electrical Insulation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114216624","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 ultra violet irradiation on low voltage cable insulation 紫外线照射对低压电缆绝缘的影响
Conference Record of the 2004 IEEE International Symposium on Electrical Insulation Pub Date : 2004-09-19 DOI: 10.1109/ELINSL.2004.1380591
R. Arora, V. Tripathi
{"title":"Effect of ultra violet irradiation on low voltage cable insulation","authors":"R. Arora, V. Tripathi","doi":"10.1109/ELINSL.2004.1380591","DOIUrl":"https://doi.org/10.1109/ELINSL.2004.1380591","url":null,"abstract":"To connect the low voltage (1.1 kV rating) underground XLPE and PVC insulated power cables with the overhead distribution network, short lengths of the core insulation are used with their ends often exposed to the atmosphere. Such exposed insulation is reported to develop cracks and become brittle within a few months of installation. Experimental investigation with accelerated UV irradiation in the laboratory revealed significant aging effect on the mechanical properties of XLPE core insulation material. The aging process was found to be faster when the insulation material was under mechanical stress.","PeriodicalId":342687,"journal":{"name":"Conference Record of the 2004 IEEE International Symposium on Electrical Insulation","volume":"57 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123255160","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
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