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Journal of Engineering and Applied Sciences
Computer analysis of negative phase sequence protection system using minimum unbalanced conditions under phase angle variations only.
Author(s)
Azzam-Ul-Asar
Electrical Engineering Department, NWFP University of Engineering & Technology, Peshawar, Pakistan
Aftab Ahmad
Electrical Engineering Department, NWFP University of Engineering & Technology, Peshawar, Pakistan
Abstract
The paper describes the computer analysis of Negative Phase Sequence (N.P.S) Protection system attempting to emphasize the minimum unbalanced loading conditions under which the N.P.S. relay trips and protect the generating unit from being damaged. The minimum unbalanced conditions have been considered in terms of three line currents keeping their mangitude fixed and letting the phase angles variable, resulting a three dimensional graphical representation.
Publication Details
Page(s)
7-11
DOI
DOI not available
Published
Journal: Journal of Engineering and Applied Sciences, Volume: 9, Issue: 2, Year: 1990
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