Computer-aided coordination and overcurrent protection for distribution systems

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Overcurrent protection and coordination studies for electrical distribution systems have become much easier to perform with the emergence of several commercially available software programs that run on a personal computer. These programs have built-in libraries of protective device time-current curves, damage curves for cable and transformers, and motor starting curves, thereby facilitating the design of a selectively coordinated protection system which is also well-protected. Additionally, design time when utilizing computers is far less than the previous method of tracing manufacturers` curves on transparent paper. Basic protection and coordination principles are presented in this paper along with several helpful suggestions for ... continued below

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5 p.

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Tolbert, L.M. March 1, 1995.

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Overcurrent protection and coordination studies for electrical distribution systems have become much easier to perform with the emergence of several commercially available software programs that run on a personal computer. These programs have built-in libraries of protective device time-current curves, damage curves for cable and transformers, and motor starting curves, thereby facilitating the design of a selectively coordinated protection system which is also well-protected. Additionally, design time when utilizing computers is far less than the previous method of tracing manufacturers` curves on transparent paper. Basic protection and coordination principles are presented in this paper along with several helpful suggestions for designing electrical protection systems. A step-by-step methodology is presented to illustrate the design concepts when using software for selecting and coordinating the protective devices in distribution systems.

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5 p.

Notes

OSTI as DE95008844

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  • 1995 industrial and commercial power systems conference, San Antonio, TX (United States), 8-10 May 1995

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  • Other: DE95008844
  • Report No.: CONF-9505196--1
  • Grant Number: AC05-84OR21400
  • Office of Scientific & Technical Information Report Number: 42481
  • Archival Resource Key: ark:/67531/metadc678351

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Office of Scientific & Technical Information Technical Reports

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  • March 1, 1995

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • June 23, 2016, 1:27 p.m.

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Tolbert, L.M. Computer-aided coordination and overcurrent protection for distribution systems, article, March 1, 1995; Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc678351/: accessed May 25, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.