Outage Analysis and System Disturbances on 330 kV and 132 kV Transmission System in Nigeria
The Persistent power outage in the country due to faults has become alarming to the government and the body responsible for electricity generation in the country. It also creates a major problem for electricity consumers in Nigeria, there must be an improvement in the reliability of the transmission system in Nigeria. This research work is predominantly concerned with the analysis of outages on 330kV and 132kV transmission system, and system disturbances on generation and transmission system for five (5) years. The result shows that the forced outages are the most occurred outages on the 330 kV line, while on 132 kV line, emergency outages have the highest number of outages in 2014 but decreases rapidly over the years, similarly, twenty-seven (27) major system disturbances occurred in 2016 with 31% against ten (10) with 11% disturbances in 2015, while 2014 and 2018 with the same number of system disturbances of thirteen (13) with 15%, it is apparent that more disturbances occur on the transmission system, and there should be a proper protection scheme to maintain stable grid network. Consequently, Mini-grid and off-grid solutions will prominently address the issue of power supply shortage and instability in Nigeria.
Keywords: outage, transmission, generation, disturbances, grid.
ADP, African Development Bank: “Nigeria Electrification Project Appraisal Report, PESR/ PERN/ RDNG,” November, 2018.
Fichtner, “Transmission Expansion Plan Development of Power System Master Plan for the Transmission Company of Nigeria,” Nigeria Electricity and Gas Improvement Project, 2017.
Ogbuefi, U. C., Ugwu, C. L., and Ogbogu, N. O, “Analysis of Nigeria Power System Voltage Collapse Incidences from 2000 To 2017,” IOSR Journal of Electrical and Electronics Engineering, Vol. 13, Issue 2 Ver. I, Pp 28-34., April 2018.
Okoye, C. U. and Omolola, S. A, “A Study and Evaluation of Power Outages on 132 KV Transmission Network in Nigeria for Grid Security,” The International Journal of Engineering and Science (IJES), 8.11, Pp 53-57, November 2019.
Okoye, C. U., Omolola, S. A., Adelakun, N. O. and Bitrus, I, “Retooling Nigeria’s Electricity Generation Sub – System for Sustainable Grid Operation,” International Journal of Innovations in Engineering Research and Technology, Vol 6, Issue 12, Pp 7 – 13, December 2019.
Oputa, O. and Madueme, T. C, “Fault Analysis On Nigeria 330kV Transmission System Using ETAP,” Nigerian Journal of Technology (NIJOTECH), Vol. 38, No. 1, Pp. 202 – 211, January 2019.
TCN, Transmission Company of Nigeria: “Grid System Operations, Annual Technical Report,” National Control Centre, Osogbo, Nigeria, 2015.
TCN, Transmission Company of Nigeria: “Grid System Operations, Annual Technical Report,” National Control Centre, Osogbo, Nigeria, 2017.
TCN, Transmission Company of Nigeria: “Grid System Operations, Annual Technical Report,” National Control Centre, Osogbo, Nigeria, 2018.
TCN-PMU, “Environmental and Social Impact Assessment (ESIA) For the Proposed 132/33kV Transmission Substation at Kabba, Kogi State,” Transmission Company of Nigeria - Project Management Unit (TCN-PMU), March 2016.
Timileyin, O., “Blackout as power grid collapse three times in 18 hours,” The Guardian Newspaper, Thursday, May 9, 2019.