Journal of Electrical Engineering and Electronic TechnologyISSN: 2325-9833

Research Article, J Electr Eng Electron Technol Vol: 6 Issue: 1

Application of Tier-2 Compensation Technique in the Expansion of Power Systems Corridors: A Case Study of General Steel Mills, Asaba

Ezennaya SO* and Agu VN
Department of Electrical Engineering, Nnamdi Azikiwe University, Awka, Nigeria
Corresponding author : Samuel Ezennaya
Lecturer, Electrical Engineering Department, Faculty of Engineering and Technology, Nnamdi Azikiwe University, P.M.B. 5025, Awka, Nigeria
Tel: +2348034988807
E-mail: so.ezennaya@unizik.edu.ng
Received: February 23, 2017 Accepted: April 06, 2017 Published: April 12, 2017
Citation: Ezennaya SO, Agu VN (2017) Application of Tier-2 Compensation Technique in the Expansion of Power Systems Corridors: A Case Study of General Steel Mills, Asaba. J Electr Eng Electron Technol 6:1. doi: 10.4172/2325-9833.1000136

Abstract

Investigations are done in this paper to see how Tier-2 compensation technique can expand the power systems corridor for the release of embedded transmission capacity. Mathematical models where developed for the savings in power bills, savings in energy and release of systems capacity for extra loadings. The General Steel Mills (GSM) Ltd, Asaba Nigeria was used as a case study to view the effect of locally generated VAr (shunt capacitors) at the buses. These generated VAr corrected the power factors of the load to as close to unity as possible and consequently released the overall systems capacity by 75% with energy and power bills saved to 66% and 23.17Mvar respectively. When this was achieved, the loads being supplied by the transformers was reduced hence the required reactive power by the loads were being supplied at the load locations. These relieve the transformers and the lines of some duties.

Keywords: Tier-2 compensation; Power bills; Energy savings; MVA loading;General steel mills (GSM); Shunt capacitors; VAr

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