{"title":"The effects of harmonics on overcurrent protection devices","authors":"J. Brożek","doi":"10.1109/IAS.1990.152455","DOIUrl":null,"url":null,"abstract":"Harmonic distortion and its effects on current waveforms are reviewed. The problems produced by higher order harmonics, hysteresis losses in the transformers' cores, and the currents' high crest factors are discussed. Several solutions to the effects of harmonic distortion on overcurrent devices such as circuit breakers, fuses, and relays are presented, including derating the transformers, and motors to avoid overheating and sizing the overcurrent devices by measuring load currents using only true RMS sensing meters.<<ETX>>","PeriodicalId":185839,"journal":{"name":"Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting","volume":"23 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1990-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"20","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IAS.1990.152455","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 20
Abstract
Harmonic distortion and its effects on current waveforms are reviewed. The problems produced by higher order harmonics, hysteresis losses in the transformers' cores, and the currents' high crest factors are discussed. Several solutions to the effects of harmonic distortion on overcurrent devices such as circuit breakers, fuses, and relays are presented, including derating the transformers, and motors to avoid overheating and sizing the overcurrent devices by measuring load currents using only true RMS sensing meters.<>
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