Microprocessor-Based Protective Relays Applications in Nigeria Power System Protections
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International Journal of Engineering Trends and Technology (IJETT) | 
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| © 2015 by IJETT Journal | ||
| Volume-26 Number-2 |
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| Year of Publication : 2015 | ||
| Authors : J.O. Aibangbee, S.O. Onohaebi |
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| DOI : 10.14445/22315381/IJETT-V26P216 |
Citation
J.O. Aibangbee, S.O. Onohaebi"Microprocessor-Based Protective Relays Applications in Nigeria Power System Protections", International Journal of Engineering Trends and Technology (IJETT), V26(2),88-94 August 2015. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Abstract
Electric Utilities Company of Nigeria
(EUCN) have traditionally used electromechanical
(EMR) distance relays for the protection of
transmission lines in the past, and many such relays
are still in use in power systems today. In this paper,
microprocessor-based protective relays (MPBRs)
applications in the Nigeria power systems protection
were investigated.
This paper evaluates the performance of a
transmission line protection scheme using
Microprocessor-based protective and
Electromechanical relays using discrete components,
for comparison in terms of engineering design,
installations, maintenances costs, and applications
flexibility.
Results shown that maintenance and design
of protection schemes using EMR is expensive and
time-consuming. MPBRs offer many advantages and
benefits over EMR includes compactness, reliability,
flexibility, number of installations components,
maintenances costs, applications flexibility, are
greatly reduced and improved monitoring and control
functions. It reduces maintenance costs by providing
self-test functions and high reliability, remote targets;
metering data memory capabilities, fault location and
status information to assist operations in restoration
of electrical service. Fault location and event reports
provide valuable information leading to improvement
in the overall protection schemes. The overall scheme
takes up less panel space, the design and wiring is
simpler and less costly to implement. Installation and
maintenance testing are greatly reduced.
References
[1] John J. Kumm, Mark S. Weber, E.O. Schweitzer, III, Daqing
Hou,
"Philosophies for Testing Protective Relays," 48th Annual
Georgia Tech Protective Relaying Conference, Atlanta,
Georgia, May 4-6, 1994.
[2] Lewis J. Blackburn and Thomas J.Domin “Protective
Relaying Principles and Applications”, third edition, 2007.
[3] Sachdev, M. S. “Advanced microprocessor Based Protection
and communication”, IEEE Tutorial course. 1997.
[4] Brad. Hendenson, “Protection Relay setting management in
the modern
world; cigre conference 2008
[5] John J. Kumm, Edmund 0. Schweitzer, III, Daqing Hou,
"Assessing the Effectiveness of Self-Tests and Other
Monitoring Means in Protective Relays," PEA Relay
Committee Spring Meeting, Matamoras, Pennsylvania, May
25-26, 1995.
[6] Stanley H. Horowitz and A. G. Phadke “Power System
Relaying” Third edition, England RSP Ltd, 2008.
[7] Sachdev, M. S. “Advanced microprocessor BasedProtection
and communication”, IEEE Tutorial course.1997.
[8] Mohindar S.and Sachdev V. “Understanding Microprocessorbased
Technology applied to relaying,” Power System
Relaying Committee 2004.
[9] Jeff Roberts, Edmund 0. Schweitzer, III, "Analysis of Event
Reports," 16th Annual Western Protective Relay Conference,
Spokane, Washington, October 24-26, 1999.
[10] Zejlan Chan “Advanced Microprocessor-Based Intelligent
Relay for Multifunctional Protection system” November
1995
[11] Stanley E. Zocholl, Armando Guzman, Daqing Hou.
“Transformer modeling as applied to differential protection”,
Schweitzer Engineering Laboratories, Inc. Pullman,
Washington, USA. 2007.
[12] Guzman A., S. Zocholl, G. Benmouyal, and H. J Altuve,
“Performance Analysis of Traditional and Improved
Transformer Differential Protective Relays”, SEL Technical
papers 2002.
Keywords
Power system, Microprocessor-based relays,
electromechanical relays, engineering design, maintenances
costs, protection schemes.