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Impact of harmonics on tripping time of overcurrent relays

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Authors
Masoum, Mohammed
Islam, Syed
Tan, Kelvin
Xuan, T.
Date
2007
Type
Conference Paper
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Abstract

Theoretical and experimental analyses are used to investigate the effects of harmonics on the operation of overcurrent relays. Two analytical approaches based on relay characteristics provided by the manufacturer and simulations using PSCAD software package are used to estimate tripping times under non-sinusoidal operating conditions. The tests were conducted such that the order and the magnitude of harmonics could be controlled by employing a computer-based single-phase harmonic source. Computed and measured tripping times are compared and suggestions on the application of overcurrent relays in harmonically polluted environments are provided.

Citation
Masoum, Mohammed and Islam, Syed and Tan, Kelvin and Xuan, T. 2007. Impact of harmonics on tripping time of overcurrent relays, in Proceedings of the Australasian Universities Power Engineering Conference (ed), AUPEC 2007 Australasian Universities Power Engineering Conference, Dec 9 2007, pp. 831-835. Perth, WA: Curtin University of Technology.
Source Title
Conference Proceedings of the 2007 Australasian Universities Power Engineering Conference
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DOI
Faculty
School of Electrical Engineering and Computing
Department of Electrical and Computer Engineering
Faculty of Science and Engineering
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