{"title":"一种新型电流互感器自校准标准仪","authors":"I. Zoltán","doi":"10.1109/CPEM.1994.333241","DOIUrl":null,"url":null,"abstract":"A new current comparator-based self-calibrating instrument for current transformer calibration has been developed. The instrument measures the in-phase and quadrature components of the error by means of a digital vector voltmeter. The built-in ratio matching unit makes it possible to compare current transformers of different ratios. A set of built-in auxiliary windings ensure complete on-site self-testing of the instrument. The ratio matching unit can be tested and calibrated by the anti-offset method. The basic accuracy of the instrument is 2 ppm with 0.1 ppm resolution.<<ETX>>","PeriodicalId":388647,"journal":{"name":"Proceedings of Conference on Precision Electromagnetic Measurements Digest","volume":"199 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1994-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"A new self-calibrating standard instrument for current transformer calibration\",\"authors\":\"I. Zoltán\",\"doi\":\"10.1109/CPEM.1994.333241\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A new current comparator-based self-calibrating instrument for current transformer calibration has been developed. The instrument measures the in-phase and quadrature components of the error by means of a digital vector voltmeter. The built-in ratio matching unit makes it possible to compare current transformers of different ratios. A set of built-in auxiliary windings ensure complete on-site self-testing of the instrument. The ratio matching unit can be tested and calibrated by the anti-offset method. The basic accuracy of the instrument is 2 ppm with 0.1 ppm resolution.<<ETX>>\",\"PeriodicalId\":388647,\"journal\":{\"name\":\"Proceedings of Conference on Precision Electromagnetic Measurements Digest\",\"volume\":\"199 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1994-06-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of Conference on Precision Electromagnetic Measurements Digest\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CPEM.1994.333241\",\"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 of Conference on Precision Electromagnetic Measurements Digest","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CPEM.1994.333241","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A new self-calibrating standard instrument for current transformer calibration
A new current comparator-based self-calibrating instrument for current transformer calibration has been developed. The instrument measures the in-phase and quadrature components of the error by means of a digital vector voltmeter. The built-in ratio matching unit makes it possible to compare current transformers of different ratios. A set of built-in auxiliary windings ensure complete on-site self-testing of the instrument. The ratio matching unit can be tested and calibrated by the anti-offset method. The basic accuracy of the instrument is 2 ppm with 0.1 ppm resolution.<>