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The Use of Three-Phase Fault Analysis for Rating Circuit Breakers on Nigeria 330 kV Transmission Lines

Abdulkareem, Ademola and Awosope, C. O. A. and Awelewa, A. A. (2016) The Use of Three-Phase Fault Analysis for Rating Circuit Breakers on Nigeria 330 kV Transmission Lines. Journal of Engineering and Applied Sciences, 11 (12). pp. 2612-2622. ISSN 1816-949X

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Abstract

Fault studies play a significant role in the power system security for the supply and generation of electrical energy to end-users. This research work focuses on the analysis and simulation of 3 kV" fault phenomenon to determine the voltage magnitude and fault cwrent magnitude in the test system. The test system is the Nigeria 28-bus, 330 kV Transmission System. The 28-bus system is simulated using 1.1ATLAB-based programme and the maximwn cment magnitude obtained is used to determine an appropriate value of the circuit breaker rating for all the lines in the 330 kV power system. This research therefore, suggests the level of protection to be applied on Nigeria 330 kV power lines with the aim of improving system security as the information gained from this study helps in the setting of relay. The study revealed the abnormally high magnitude of cwrent that flows through the power line to the point of fault and recorded the highest value of 6.4376 kA (36.796 pu) through tbe line 4-3 (Jebba GS-Jebba IS) when Jebba GS is faulted

Item Type: Article
Uncontrolled Keywords: Power system security, simulation, three-phase, circuit breaker, maximlllll cwrent magnitude
Subjects: T Technology > T Technology (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering, Science and Mathematics > School of Electronics and Computer Science
Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: Mrs Patricia Nwokealisi
Date Deposited: 29 Apr 2019 13:54
Last Modified: 29 Apr 2019 13:54
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/12630

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