Article citationsMore>>

Few, S., Barton, J., Sandwell, P., Mori, R., Kulkarni, P., Thomson, M., Nelson, J. and Candelise, C. (2022) Electricity Demand in Populations Gaining Access: Impact of Rurality and Climatic Conditions, and Implications for Microgrid Design. Energy for Sustainable Development, 66, 151-164.
https://doi.org/10.1016/j.esd.2021.11.008

has been cited by the following article:

• TITLE: Design and Implementation of an Automatic Over/Undervoltage Protection System for Single-Phase Low Voltage Power Lines

  AUTHORS: Derek Ajesam Asoh, Lizette Nange Chia

  KEYWORDS: Overvoltage, Undervoltage, Simulation, Arduino Microcontroller, Tripping Mechanism, Sub-Saharan Africa

  JOURNAL NAME: Journal of Power and Energy Engineering, Vol.10 No.8, August 10, 2022

  ABSTRACT: Today, many industrial and domestic electronic appliances and equipment (devices) are exposed to power disturbances such as voltage variations of the AC mains supply which often lead to damage of the electronic devices. As these devices are quite sensitive to power disturbances, there is a need for a tripping system that can help avoid any damage to devices in use. The objective of this work is to build a system that monitors line voltage and protects appliances from unacceptable voltage variations. The system consists of a tripping mechanism that monitors the input voltage and trips according to the limits provided. An Arduino Uno microcontroller is used to determine the voltage level through a voltage divider circuit. The system’s novelty and innovation lie in its flexibility. It offers the user the ability to define different overvoltage and undervoltage threshold values depending on the specific appliances used in the household. In operation, the system displays the voltage state (overvoltage, normal voltage, overvoltage) and alerts the user by sending an SMS via a GSM modem. The system is valuable for industrial and domestic applications, especially in developing economies such as those of Sub-Saharan Africa, where overvoltage and undervoltage are acute problems.