{"title":"中压形式绕线线圈端部在快速上升时间脉冲和污染下应力控制涂层的有效性","authors":"F. Espino-cortes, S. Jayaram, E. Cherney","doi":"10.1109/EEIC.2005.1566282","DOIUrl":null,"url":null,"abstract":"The paper discusses the effectiveness of stress control coatings on the ends of 4 kV motor coils under fast rise time pulses that arise from PWM drives. The analysis of the stress relief is done using a transient finite element method and the results are compared to experimental measurements. Currently adopted stress control coatings do not effectively grade the electric stress arising from fast rise time pulses from PWM inverter drives which easily reaches the partial discharge threshold on the ground wall insulation surface of the form wound coils. Electric field enhancement is shown to be considerably greater under polluted conditions. In this work, changes to the properties of the coatings are suggested as a solution to improve the effectiveness of stress control coatings on form wound coils in motors connected to inverter fed drives","PeriodicalId":267510,"journal":{"name":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","volume":"51 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"Effectiveness of stress control coatings in medium voltage form wound coil ends under fast rise time pulses and contamination\",\"authors\":\"F. Espino-cortes, S. Jayaram, E. Cherney\",\"doi\":\"10.1109/EEIC.2005.1566282\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The paper discusses the effectiveness of stress control coatings on the ends of 4 kV motor coils under fast rise time pulses that arise from PWM drives. The analysis of the stress relief is done using a transient finite element method and the results are compared to experimental measurements. Currently adopted stress control coatings do not effectively grade the electric stress arising from fast rise time pulses from PWM inverter drives which easily reaches the partial discharge threshold on the ground wall insulation surface of the form wound coils. Electric field enhancement is shown to be considerably greater under polluted conditions. In this work, changes to the properties of the coatings are suggested as a solution to improve the effectiveness of stress control coatings on form wound coils in motors connected to inverter fed drives\",\"PeriodicalId\":267510,\"journal\":{\"name\":\"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.\",\"volume\":\"51 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/EEIC.2005.1566282\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings Electrical Insulation Conference and Electrical Manufacturing Expo, 2005.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EEIC.2005.1566282","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Effectiveness of stress control coatings in medium voltage form wound coil ends under fast rise time pulses and contamination
The paper discusses the effectiveness of stress control coatings on the ends of 4 kV motor coils under fast rise time pulses that arise from PWM drives. The analysis of the stress relief is done using a transient finite element method and the results are compared to experimental measurements. Currently adopted stress control coatings do not effectively grade the electric stress arising from fast rise time pulses from PWM inverter drives which easily reaches the partial discharge threshold on the ground wall insulation surface of the form wound coils. Electric field enhancement is shown to be considerably greater under polluted conditions. In this work, changes to the properties of the coatings are suggested as a solution to improve the effectiveness of stress control coatings on form wound coils in motors connected to inverter fed drives
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