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Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480)最新文献

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Polymers: conductors, insulators, and active devices 聚合物:导体、绝缘体和有源器件
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480) Pub Date : 2003-11-24 DOI: 10.1109/EICEMC.2003.1247883
J. Masi
{"title":"Polymers: conductors, insulators, and active devices","authors":"J. Masi","doi":"10.1109/EICEMC.2003.1247883","DOIUrl":"https://doi.org/10.1109/EICEMC.2003.1247883","url":null,"abstract":"The discovery of new molecular organic materials for electroluminescent devices has allowed a wide variety of applications in displays, communications, sensors, and the like. The demonstration of organic magnetic materials has offered the challenge of finding polymer (organic) materials in which there is sufficient electronic exchange as well as stability both thermally and chemically. The intrinsically conductive and semiconductive polymers have offered flexibility and conductivity to meet needs from batteries to solar cells. This paper gives an update/overview of promising new complex polymer building blocks which can yield conductive, semiconductive, luminescent, ferro-, ferri-, and super-paramagnetic materials for devices of the future in power, storage, displays, and communications devices. The use of these materials to produce electrically active polymeric materials has given us freedom to fabricate devices with novel and useful properties.","PeriodicalId":274147,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124378252","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
Practical process in high frequency distribution transformer design 高频配电变压器设计的实践过程
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480) Pub Date : 2003-11-24 DOI: 10.1109/EICEMC.2003.1247867
N. Ekekwe, J.E. Ndubah, K. White, O. Ben
{"title":"Practical process in high frequency distribution transformer design","authors":"N. Ekekwe, J.E. Ndubah, K. White, O. Ben","doi":"10.1109/EICEMC.2003.1247867","DOIUrl":"https://doi.org/10.1109/EICEMC.2003.1247867","url":null,"abstract":"This paper details the practical, step-by-step experience encountered in the design and development of a 2 kHz, 3.5 kVA distribution transformer. Two conventional design methods were used respectively for the design: the Area Product approach, and the Core Geometry approach. The Area Product approach uses the product of the Core Window area and the Core sectional area as the principal design criteria, while the Core Geometry approach uses voltage regulation as the principal design criterion. When a common criterion was used for the design process, both approaches yielded an identical end result.","PeriodicalId":274147,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124457084","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
Risk in surge testing of turn insulation in windings of rotating machines 旋转机械绕组匝绝缘喘振试验的风险
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480) Pub Date : 2003-11-24 DOI: 10.1109/EICEMC.2003.1247928
B. Gupta
{"title":"Risk in surge testing of turn insulation in windings of rotating machines","authors":"B. Gupta","doi":"10.1109/EICEMC.2003.1247928","DOIUrl":"https://doi.org/10.1109/EICEMC.2003.1247928","url":null,"abstract":"In normal operation, the thin turn (or interturn) insulation in windings of rotating machines experiences relatively small electrical stress. However, under certain conditions, e.g., switching operations, the turn insulation may experience very large electrical stress. The turn insulation, if weak, may fail under such conditions. Many of the groundwall failures in machines are suspected to have initiated from a turn insulation failure. Hipot tests are used to test the groundwall insulation. This often leads to suggestions that surges (with sub-microsecond rise time) should be used to test the turn insulation in machine windings. However, the detection of a turn insulation failure in a single coil in a tested complete winding is difficult. The consequent risks involved in surge testing of the turn insulation in a complete machine winding are emphasized and reiterated in this paper. Tests using both single surge generators and repetitive surge generators are illustrated.","PeriodicalId":274147,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125413356","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: 11
The fractal dimension estimate of water tree in XLPE dielectric XLPE介质中水树的分形维数估计
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480) Pub Date : 2003-11-24 DOI: 10.1109/EICEMC.2003.1247878
Junhua Luo, Jung-Lei Tang, Baolong Sheng
{"title":"The fractal dimension estimate of water tree in XLPE dielectric","authors":"Junhua Luo, Jung-Lei Tang, Baolong Sheng","doi":"10.1109/EICEMC.2003.1247878","DOIUrl":"https://doi.org/10.1109/EICEMC.2003.1247878","url":null,"abstract":"Water trees arise from the penetration of water into the XLPE dielectric of medium and HV power cables when operating in a humid or wet environment. The growth process and shape of water tree in XLPE dielectric under ac electric field is random and branched and cannot be described using Euclidean geometry. The fractal dimension and the branching tendency of water tree in XLPE dielectric are estimated based on partial electric breakdown and fractal theory in this paper. The shapes and structures of water trees observed by an optical microscope proved to have fractal characteristics, i.e., water trees are fractal objects.","PeriodicalId":274147,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116859939","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
A high voltage insulating system with increased thermal conductivity for turbo generators 一种高压绝缘系统，增加了涡轮发电机的导热性
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480) Pub Date : 2003-11-24 DOI: 10.1109/EICEMC.2003.1247959
M. Tari, K. Yoshida, S. Sekito, J. Allison, R. Brutsch, A. Lutz, N. Frost
{"title":"A high voltage insulating system with increased thermal conductivity for turbo generators","authors":"M. Tari, K. Yoshida, S. Sekito, J. Allison, R. Brutsch, A. Lutz, N. Frost","doi":"10.1109/EICEMC.2003.1247959","DOIUrl":"https://doi.org/10.1109/EICEMC.2003.1247959","url":null,"abstract":"In this paper, an insulation system with high thermal conductivity (HTC) without changing the main wall thickness or the slot design is presented. This offers significant reduction in thermal gradient in the insulation resulting in less thermal stress and higher efficiency of the machine without any basic generator design changes. This means that the long term reliability of the generator operation is ensured.","PeriodicalId":274147,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129960583","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: 39
Partial discharge weak spots localization in the stator insulation of running turbo generators 运行汽轮发电机定子绝缘局部放电薄弱点的定位
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480) Pub Date : 2003-11-24 DOI: 10.1109/EICEMC.2003.1247851
H. van Breen, E. Gulski, J. Smit
{"title":"Partial discharge weak spots localization in the stator insulation of running turbo generators","authors":"H. van Breen, E. Gulski, J. Smit","doi":"10.1109/EICEMC.2003.1247851","DOIUrl":"https://doi.org/10.1109/EICEMC.2003.1247851","url":null,"abstract":"One of the best symptoms for the presence of defects in the HV insulation system is the detection of partial discharges (PD). Weak spots may be found by evaluating the PD repetition rate over the entire insulation system. If a severe degradation system is active, it will show a much higher PD repetition rate compared to the non-affected part of the insulation system. A method is introduced, which uses the propagation of the pulses through the stator core to localize partial discharges. With the knowledge of the exact spot at which each PD occurs it is possible to determine the PD repetition rate of PD occurrences in the entire stator. Weak spot localization can then be readily identified and localized by their enhanced repetition rate.","PeriodicalId":274147,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131182757","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
Current streams-C for the EPXA10DB, a generic tool for the development of complex control and signal processing systems 电流流- c用于EPXA10DB，用于开发复杂控制和信号处理系统的通用工具
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480) Pub Date : 2003-11-24 DOI: 10.1109/EICEMC.2003.1247940
S. Miller
{"title":"Current streams-C for the EPXA10DB, a generic tool for the development of complex control and signal processing systems","authors":"S. Miller","doi":"10.1109/EICEMC.2003.1247940","DOIUrl":"https://doi.org/10.1109/EICEMC.2003.1247940","url":null,"abstract":"The Altera EPXA10DB is a development platform for reconfigurable computing, coupling an ARM microprocessor and a modest Altera Programmable Logic Device (PLD) on the same chip. Streams-C is a \"C\" style language that addresses hardware and software generation by extending the C language. A new port of Streams-C for the EPXA10DB is being developed to provide a standalone, custom-hardware-accelerated computing platform. This may prove to be useful in rapidly developing complex signal processing systems.","PeriodicalId":274147,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129217420","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
Pitfalls of online PD measurements on turbogenerators using external PD sensors 利用外部PD传感器对汽轮发电机进行在线PD测量的缺陷
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480) Pub Date : 2003-11-24 DOI: 10.1109/EICEMC.2003.1247850
H. van Breen, E. Gulski, J. Smit, H. Verhaart, W. de Leeuw
{"title":"Pitfalls of online PD measurements on turbogenerators using external PD sensors","authors":"H. van Breen, E. Gulski, J. Smit, H. Verhaart, W. de Leeuw","doi":"10.1109/EICEMC.2003.1247850","DOIUrl":"https://doi.org/10.1109/EICEMC.2003.1247850","url":null,"abstract":"Online PD measurements on turbo generators are more in common now than they were 10 years ago. During this period much knowledge has been obtained about the behavior and problems encountered when performing online PD measurements. Experience also thought that there are several pitfalls often encountered when talking to generator operators. These pitfalls stem from misconceptions about the possibilities and feasibility of on line PD measurements on turbo generators.","PeriodicalId":274147,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129741504","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
A comparative evaluation of various conducting slot armour materials 各种导电槽装甲材料的比较评价
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480) Pub Date : 2003-11-24 DOI: 10.1109/EICEMC.2003.1247956
M. Stranges, J. Hayward, J. Dymond, R. Omranipour
{"title":"A comparative evaluation of various conducting slot armour materials","authors":"M. Stranges, J. Hayward, J. Dymond, R. Omranipour","doi":"10.1109/EICEMC.2003.1247956","DOIUrl":"https://doi.org/10.1109/EICEMC.2003.1247956","url":null,"abstract":"The use of conducting armour media between the groundwall insulation and slot iron in large high-voltage rotating machines is required for suppression of in-slot corona during operation. To ensure continued efficient operation of high-voltage machines, the importance of maintaining an adequate degree of conductance along the length of the armour and a sufficient connection between the armour and grading materials cannot be overstated. This paper presents a discussion of the effect of operating environment on the condition of conducting slot armour, and an overview of several types of commercially available materials. An experiment to measure resistance measurements before and after vacuum pressure impregnation (VPI) for six different materials is described. Resistance is evaluated as a function of distance from the ground plane. Resistances for two of these materials were re-evaluated over a temperature range approximating that experienced by the material when in operation. Voltage endurance test results are presented for a series of bars made using two of the materials in the resistance study, including observations about deterioration under high-voltage test conditions.","PeriodicalId":274147,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122906002","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
Cave Automatic Virtual Environment Cave自动虚拟环境
Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480) Pub Date : 2003-11-24 DOI: 10.1109/EICEMC.2003.1247937
H. Creagh
{"title":"Cave Automatic Virtual Environment","authors":"H. Creagh","doi":"10.1109/EICEMC.2003.1247937","DOIUrl":"https://doi.org/10.1109/EICEMC.2003.1247937","url":null,"abstract":"Technology has come a long way in the last decade. Many automotive, military vehicle, and other production and design companies have moved on from the 2D design programs to 3D virtual reality designs. The Cave Automatic Virtual Environment (CAVE) is a projection-based Virtual Reality display that was developed at the Electronic Visualization Laboratory. This projection system displays images in a 3D immersive four-walled room. It uses a real-time viewer-centered head tracking perspective with a large angle of view, interactive control, and binocular display.","PeriodicalId":274147,"journal":{"name":"Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Technology Conference (Cat. No.03CH37480)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124405252","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: 25
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