Unfairly Faulty Energy Meter Reading due to Inappropriate Use of the Blondel Theorem

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Abstract

Energy measurements are done according to the Blondel theorem, which states that in a system containing N conductors, N-1 current sensing elements are needed to measure the energy. In energy metering for billing purposes at residences only the line current is measured. However, in this paper it is shown experimentally that discrepancies can occur, because current can flow through the protective earth. This occurred in a real one-phase low-voltage distribution system where a residual current device was not functioning properly and a leakage current could flow. This resulted in an unbalance between the line and neutral conductor and thus an inappropriate use of the Blondel theorem.
Original languageEnglish
Title of host publication2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE
Place of PublicationPiscataway, NJ
PublisherIEEE Electromagnetic Compatibility Society
Pages1-5
Number of pages5
ISBN (Electronic)978-1-7281-5579-1, 978-1-7281-5578-4
ISBN (Print)978-1-7281-5580-7
DOIs
Publication statusPublished - 6 Nov 2020
EventInternational Symposium on Electromagnetic Compatibility, EMC EUROPE 2020 - Virtual Conference, Rome, Italy
Duration: 23 Sep 202026 Sep 2020

Publication series

NameProceedings International Symposium on Electromagnetic Compatibility - EMC EUROPE
PublisherIEEE
Volume2020
ISSN (Print)2325-0356
ISSN (Electronic)2325-0364

Conference

ConferenceInternational Symposium on Electromagnetic Compatibility, EMC EUROPE 2020
Abbreviated titleEMC EUROPE 2020
CountryItaly
CityRome
Period23/09/2026/09/20

Keywords

  • Blondel theorem
  • Distribution system
  • Energy measurement
  • Residual current device
  • Unbalance

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