{"title":"A new method of nuclear magnetic resonance for aging State detection of composite insulators","authors":"Zhangting Yu, Dajian Li, Liangyuan Chen","doi":"10.1109/ICEMPE51623.2021.9509181","DOIUrl":null,"url":null,"abstract":"In order to measure the aging state of silicone rubber insulators, a new method of nuclear magnetic resonance(NMR) measurement is proposed and a portable low field NMR measurement system is developed. This paper introduced a design method of magnet and RF coil of NMR sensor and made a experiment about the aging of composite insulators on 220kV high voltage. The study draw a conclusion that the transverse relaxation time of composite insulators decreases with the increasing of running time. Therefore, low-field NMR can be used to evaluate the aging state of composite insulator umbrella skirt quantitatively.","PeriodicalId":7083,"journal":{"name":"2021 International Conference on Electrical Materials and Power Equipment (ICEMPE)","volume":"87 1","pages":"1-4"},"PeriodicalIF":0.0000,"publicationDate":"2021-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 International Conference on Electrical Materials and Power Equipment (ICEMPE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICEMPE51623.2021.9509181","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In order to measure the aging state of silicone rubber insulators, a new method of nuclear magnetic resonance(NMR) measurement is proposed and a portable low field NMR measurement system is developed. This paper introduced a design method of magnet and RF coil of NMR sensor and made a experiment about the aging of composite insulators on 220kV high voltage. The study draw a conclusion that the transverse relaxation time of composite insulators decreases with the increasing of running time. Therefore, low-field NMR can be used to evaluate the aging state of composite insulator umbrella skirt quantitatively.
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