Determination of the Penetration Level of ASVT Sub-stations on 132kv Line Without Voltage Profile Violation
International Journal of Energy and Power Engineering
Volume 5, Issue 1, February 2016, Pages: 22-28
Received: Jan. 27, 2016; Accepted: Feb. 4, 2016; Published: Feb. 25, 2016
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Authors
Kitheka Joel Mwithui, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
Michael Juma Saulo, Department of Electrical and Electronic Engineering/Faculty of Engineering and Technology, Technical University of Mombasa, Mombasa, Kenya
David Murage, Department of Electrical and Electronic Engineering, Jomo Kenyatta University of Agriculture and Technology, Nairobi, Kenya
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Abstract
In developing countries, there are many high voltage transmission lines which transverse villages not supplied with electricity to supply main towns and industrial areas. The conventional substations are too expensive and the power distributor can only set them up if return on investment is assured. Non-conventional (ASVT) sub-stations have been tried and found to be technically successful in stepping down 132kv to low voltages like 240volts in one step to supply single phase loads. Though this technology is cheap and technically fit to be applied in areas of low demand were setting up conventional sub-station will be uneconomical, the technology is not fast spreading in Sub-Sahara Africa (SSA) where there are well established transmission line but poor distribution network. More so the technology remains as a pilot project in countries like Congo were they were first tried. This research aimed at investigating whether violation of voltage profile of the transmission line could have led to low spread of ASVT sub-station technology in Sub-Sahara Africa. The investigation of the maximum number of ASVT substations which could be terminated on 132kv line to supply these villages with electricity without voltage profile violation was carried out. In this research, transmission line and ASVT substation models were implemented using SIMULINK software in MATLAB environment. Surge impedance curves were also used to identify the point of voltage instability or voltage collapse in the system.
Keywords
Auxiliary Service Voltage Transformer (ASVT), Voltage Profile (VP), Transmission Line (TL), Penetration Level (PL)
To cite this article
Kitheka Joel Mwithui, Michael Juma Saulo, David Murage, Determination of the Penetration Level of ASVT Sub-stations on 132kv Line Without Voltage Profile Violation, International Journal of Energy and Power Engineering. Vol. 5, No. 1, 2016, pp. 22-28. doi: 10.11648/j.ijepe.20160501.14
Copyright
Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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