Survey of harmonics measurements in electrical distribution systems

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An assessment of the harmonics found in the electrical distribution system of several buildings in the three Department of Energy (DOE) Oak Ridge plants in Tennessee has yielded several conclusions useful in the design of electrical distribution systems. A preliminary survey to determine where significant amounts of harmonic currents of voltages existed in the distribution system was performed at several buildings by comparing readings taken with true root-mean-square (RMS) multimeters and averaging multimeters (non-true RMS meters). From these measurements and subsequent calculations, facilities that appeared to have significant levels of harmonics present were analyzed with a power analyzer that could ... continued below

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7 p.

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Tolbert, L.M.; Hollis, H.D. & Hale, P.S. Jr. September 1, 1996.

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Description

An assessment of the harmonics found in the electrical distribution system of several buildings in the three Department of Energy (DOE) Oak Ridge plants in Tennessee has yielded several conclusions useful in the design of electrical distribution systems. A preliminary survey to determine where significant amounts of harmonic currents of voltages existed in the distribution system was performed at several buildings by comparing readings taken with true root-mean-square (RMS) multimeters and averaging multimeters (non-true RMS meters). From these measurements and subsequent calculations, facilities that appeared to have significant levels of harmonics present were analyzed with a power analyzer that could record waveforms and give the spectrum and magnitude of harmonics. Among the non-linear loads for which sample waveforms are illustrated are fluorescent lighting (both magnetic and electronic ballasts), variable frequency drives, switch mode power supplies, and uninterruptible power supplies. A discussion as to how various harmonic waveforms come about as a result of these nonlinear loads is also outlined in this paper.

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7 p.

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OSTI as DE96011949

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  • 1996 Industry Applications Society annual meeting, San Diego, CA (United States), 6-10 Oct 1996

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  • Other: DE96011949
  • Report No.: CONF-961096--1
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 373887
  • Archival Resource Key: ark:/67531/metadc687417

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • September 1, 1996

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  • July 25, 2015, 2:20 a.m.

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  • April 21, 2016, 10:08 p.m.

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Tolbert, L.M.; Hollis, H.D. & Hale, P.S. Jr. Survey of harmonics measurements in electrical distribution systems, article, September 1, 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc687417/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.