Paper Contents
Abstract
Characterizing voltage variation in the Nigerian electrical distribution network as it affects the reliability and quality of power supply to consumers is significant. This paper examines the voltage variations characteristics in a typical low-reliability network. Two terms, short duration voltage variation (SDVV) and long duration voltage variation (LDVV) are used to redefine sag, swell, undervoltage and overvoltage with pictorial and graphical illustration in selected section of the Nigerian distribution network in Ilaro Ogun State. The survey was part of power quality studies in the selected section of the Nigerian distribution network. The studies showed that the selected distribution network voltage variation is more pronounced and can be characterised as under-voltage. With the measured voltage magnitude of 179V as the typical value the deviation from the ideal 230V is significant. The descriptive statistics of the nominal and measured voltage and frequency are compared with the EN 50160 standards. More work is required to characterise the entire distribution network, the results obtained here are indicators of what is obtainable in other parts of the network. Efforts to improve power quality should therefore go along with reliability improvement.
Copyright
Copyright © 2024 Zacchaeus Adesakin Adetona. This is an open access article distributed under the Creative Commons Attribution License.
