Non-invasive alternating and direct flux sensor for power transformers

Alexander Fröhlich, Dennis Albert, Philipp Schachinger, Herwig Renner, Hans-Joachim Pöss

Research output: Contribution to conferencePaperpeer-review

Abstract

This paper presents the measurement results of a flux sensor prototype, which can be used in power transformers for non-invasive flux sensing. The flux sensor uses the fluxgate principle to measure alternating, direct and mixed flux. The sensor can be located between two limbs on the transformer yoke and produces a flux proportional voltage signal output. The sensor uses two nanocrystalline cores, which offers several advantages over ferrite cores. The operation principle is explained for the two core arrangement and demonstrated on a 60 kVA laboratory transformer with superimposed DC. The analysis of the measurement signal reveals that alternating, direct and mixed flux can be detected and measured by the sensor prototype.
Original languageEnglish
Number of pages5
Publication statusPublished - 19 Apr 2023
Event2022 IEEE Power and Energy Student Summit and Power Electronics Student Summit: PESS & PELSS 2022 - Kassel, Germany
Duration: 2 Nov 20224 Nov 2022
https://www.uni-kassel.de/eecs/e2n/pess-pelss-2022

Conference

Conference2022 IEEE Power and Energy Student Summit and Power Electronics Student Summit
Abbreviated titlePESS & PELSS 2022
Country/TerritoryGermany
CityKassel
Period2/11/224/11/22
Internet address

ASJC Scopus subject areas

  • Engineering(all)

Fields of Expertise

  • Sustainable Systems

Treatment code (Nähere Zuordnung)

  • Experimental

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