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Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)最新文献

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Determination of the failure in the stator coil windings due to voltage surges using MATLAB 用MATLAB确定定子线圈绕组因电压浪涌引起的故障
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965767
A. Alavizadeh, A. Zargari
{"title":"Determination of the failure in the stator coil windings due to voltage surges using MATLAB","authors":"A. Alavizadeh, A. Zargari","doi":"10.1109/EEIC.2001.965767","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965767","url":null,"abstract":"This paper focuses on the heat distribution along and across the wires in the stator coil winding of an electric motor due to overvoltage. For this purpose, a computer program written in MATLAB is utilized to obtain the mentioned distribution in just one wire in the stator, which has one layer as the insulator. The distribution is determined at different points, especially at the end-turn corner of the wire.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116719215","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
Use of machine hipot testing in electric utilities 在电力设施中使用机器hipot测试
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965645
B. Gupta, G. Stone, J. Stein
{"title":"Use of machine hipot testing in electric utilities","authors":"B. Gupta, G. Stone, J. Stein","doi":"10.1109/EEIC.2001.965645","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965645","url":null,"abstract":"EPRI recently sponsored a survey of motor and generator users and manufacturers about their use of DC and AC overvoltage testing. Such testing is intended to assure machine owners that the stator and rotor winding insulation is fit for use. Questions focused on both commissioning tests and maintenance tests. The survey explored the circumstances under which hipot testing is done, the preferences of AC vs. DC testing, the specific test methods used, as well as the test voltages. This paper presents the results of the survey.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121721848","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
Partial discharge database: its benefits and limitations on assessment of stator insulation deterioration 局部放电数据库:在定子绝缘劣化评估中的优势与局限
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965717
H. Zhu, V. Green, M. Šašić, A. Jakubik
{"title":"Partial discharge database: its benefits and limitations on assessment of stator insulation deterioration","authors":"H. Zhu, V. Green, M. Šašić, A. Jakubik","doi":"10.1109/EEIC.2001.965717","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965717","url":null,"abstract":"PD test data on various generators and motors has been collected over 15 years using on-line partial discharge analyzers. A large PD test database has been established. The database provides an overall view of PD activity on rotating machines. Statistical analysis of the database provides a study of PD distribution with variations of a number of the parameters. This paper presents statistical analysis of a large PD database accumulated over the 15 years. The statistical analysis shows distribution of PD levels with machine type, voltage rating, sensitivity of the PD sensor, etc. The benefits and limitations of the PD database on assessment of stator insulation condition are discussed in the paper.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"254 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121075492","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
Evaluation of corona-resistant magnet wires through partial discharge and space charge measurements 通过局部放电和空间电荷测量评估抗电晕磁线
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965582
A. Cavallini, M. Conti, D. Fabiani, G. Montanari
{"title":"Evaluation of corona-resistant magnet wires through partial discharge and space charge measurements","authors":"A. Cavallini, M. Conti, D. Fabiani, G. Montanari","doi":"10.1109/EEIC.2001.965582","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965582","url":null,"abstract":"This paper presents the results of space charge and partial discharge measurements carried out on enameled wires, specifically designed to be used in electrical motors fed by adjustable speed drives. These procedures described can provide a useful tool for short-term evaluation of enameled wires, which can give indications also on long-term performance. Partial discharges and space charge accumulation seem to be significantly influenced by the supply voltage waveform features (frequency and shape), with an extent depending on the material itself. Moreover, partial discharge features, such as pulse height and inception voltage, depend considerably on space charge accumulation which may occur, e.g., with unipolar waveforms. Both techniques provide considerably different fingerprints of the two tested kinds of wires.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122578169","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
Influence of internal residual mechanical stresses on local dielectric strength of EHV extruded XLPE cables 内部残余机械应力对超高压挤压交联聚乙烯电缆局部介电强度的影响
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965664
Seung-Yop Lee, Young-Ho Kim, In-Ho Lee, N. Amyot
{"title":"Influence of internal residual mechanical stresses on local dielectric strength of EHV extruded XLPE cables","authors":"Seung-Yop Lee, Young-Ho Kim, In-Ho Lee, N. Amyot","doi":"10.1109/EEIC.2001.965664","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965664","url":null,"abstract":"Internal residual mechanical stresses are not uniformly distributed in the cable insulation and form so-called flow patterns or frozen-in stresses. EHV cable samples were analyzed with respect to residual stresses, local breakdown strength and electrical treeing properties. Photoelastic observations have been carried out on the cable samples to investigate quantitative residual stresses. Breakdown strength, electrical tree inception voltage and tree propagation corresponding to the typical regions of the flow pattern have also been investigated and analyzed using Weibull distribution.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126388184","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: 8
Manufacturing precision and delicate parts 制造精密、精致的零件
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965597
K.E. Kohkonen
{"title":"Manufacturing precision and delicate parts","authors":"K.E. Kohkonen","doi":"10.1109/EEIC.2001.965597","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965597","url":null,"abstract":"The manufacturing of small precision parts has always been a challenge because most manufacturing processes require mechanical cutting methods. The paper focuses on manufacturing small precision parts using the wire electrical discharge machining process. The wire EDM process cuts any conductive material using an electric arc to vaporize the material.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130277955","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
Evanescent microwave sensor scanning for detection of sub-surface defects in wires 瞬变微波传感器扫描检测导线亚表面缺陷
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965618
R. Kleismit, M. Kazimierczuk
{"title":"Evanescent microwave sensor scanning for detection of sub-surface defects in wires","authors":"R. Kleismit, M. Kazimierczuk","doi":"10.1109/EEIC.2001.965618","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965618","url":null,"abstract":"Evanescent microwave probe (EMP) scanning is used to detect sub-surface defects in copper wire with high dielectric coatings. The primary interest is in winding wire used in the construction of high voltage motors, generators and transformer applications although this technique can be applied to other aspects of stress and flaw detection. Evanescent microwave probes have the unique ability to image subsurface features under poorly conducting or dielectric materials. This nondestructive evaluation technique will allow fast and highly accurate subsurface scans of armature or stator wire in inspecting for various surface anomalies.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121098384","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
Application of statistical methods and optimization techniques in terminating ignition coil primary magnet wire without prior removal of insulation 统计方法和优化技术在不事先去除绝缘的点火线圈一次磁线终止中的应用
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965593
D. P. Lynch, W. Duff
{"title":"Application of statistical methods and optimization techniques in terminating ignition coil primary magnet wire without prior removal of insulation","authors":"D. P. Lynch, W. Duff","doi":"10.1109/EEIC.2001.965593","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965593","url":null,"abstract":"Concerns with stripping and soldering primary copper magnet wire in ignition coils and other related products have led to the investigation of an alternative product and process design, microjoining. Response surface methodologies, mathematical modeling and optimization of the process using nonlinear design of experiments have been used to provide a breakthrough welding process that is an alternative to soldering. The statistical methods used to develop the process build on the current documented research efforts. These results significantly extend the level of knowledge of designed experiment application in the welding field. A new level of insight into microjoining is developed from the results obtained with the response variable assessment methods developed, predictor interaction effects outlined and optimized nonlinear model developed.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126403627","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
Managing thermoset resin dielectric insulation failure mechanisms to achieve electrical apparatus life extension 管理热固性树脂介电绝缘失效机制，实现电器寿命延长
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965587
J.G. Hubrig
{"title":"Managing thermoset resin dielectric insulation failure mechanisms to achieve electrical apparatus life extension","authors":"J.G. Hubrig","doi":"10.1109/EEIC.2001.965587","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965587","url":null,"abstract":"Contemporary thermoset resin dielectric insulations function as complex material systems; using raw materials selected for their contributive property performance towards a set of physical, electrical and chemical in-service operating parameters defined by the electrical apparatus application. Whether the desired property values of these raw materials are realized and maintained, as a dielectric insulation, is the result of an interactive dependency between: (1) raw material sensitivity to processing variables during manufacture of the thermoset resin system; (2) the thermoset resin's key handling and processing parameters required to achieve optimum cured property performance; and (3) the suitability of the thermoset resin system's handling and processing parameters as a function of the electrical apparatus' design configuration and assembly methodology. This interactive dependency provides for the expression of dielectric insulation operating performance as a function, of electrical apparatus design configuration and manufacturing methodology. When linked through root cause failure analyses with constituent material properties and known material property degradation profiles; the material selection and manufacturing process baseline required to achieve and maintain optimum dielectric insulation performance is established.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122957205","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
Electric field and potential distributions along dry and clean non-ceramic insulators 沿干燥和清洁的非陶瓷绝缘体的电场和电位分布
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264) Pub Date : 2001-10-16 DOI: 10.1109/EEIC.2001.965726
W. Que, S. Sebo
{"title":"Electric field and potential distributions along dry and clean non-ceramic insulators","authors":"W. Que, S. Sebo","doi":"10.1109/EEIC.2001.965726","DOIUrl":"https://doi.org/10.1109/EEIC.2001.965726","url":null,"abstract":"The electric field and potential distributions in the vicinity of non-ceramic insulators under dry and clean conditions are presented. A three-dimensional electric field analysis program, COULOMB, has been used for the calculations. A three-phase 765 kV power line tower geometry is considered for the potential distribution calculations along the insulators. For three-phase energization, two-dimensional contours of the three-dimensional equipotential surfaces are presented in selected vertical planes. The effects of the presence of power line conductors and of the three phase vs. single phase energization on the electric field and potential distributions have been investigated.","PeriodicalId":228071,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.01CH37264)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116305485","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
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