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International Journal of Research and Innovation in Applied Science (IJRIAS) | Volume VII, Issue VIII, August 2022 | ISSN 2454–6194

Design and Analysis of an Automatic Power Changeover with Backup

 Patrick Effraim, Mr. Napoleon Addison, Mr. Abayemah Alphonus Bayor
Electrical And Electronics Engineering, Department Accra Institute Of Technology Accra, Ghana

IJRISS Call for paper

Abstract: The stability of the power supply in Ghana and another part of Africa is a major concern to the community and shop owners. The need for alternative power supply support and switching of load between two power sources. The system will eliminate the need for manual intervention by sensing the main gridline supply and switching to a backup source. Automation charger over to the backup source will eliminate the delay and provide efficiency in production. The system will automatically switch back when main gridline power is restored back. the system uses a microcontroller as the main automatic changing over the process and other component consists of a power supply circuit consisting of a step-down transformer, rectifier, filter capacitor, voltage regulator, and sg3525 which perform the oscillation convention from DC to AC Renewable energy sources generating direct current will require inverters to produce the alternating current necessary for domestic and industrial use The design, construction, testing of this circuit, is satisfactorily in switching from mains supply to generator/renewable energy source(s) and vice versa.

Keywords: gridline supply, battery, microcontroller, rectifier, regulator, changeover, inverter.


Power generation, which plays a major role in the economic development of this great nation (Ghana), forms the basis of this thesis, with interests in human, infrastructural, and economic development. In most developing and underdeveloped parts of the world, the supply of electricity for industrial, commercial, and domestic use is highly unstable. The main aim of any electric power supply in the world is to provide an uninterrupted power supply at all times to all its consumers. Nevertheless, in developing countries, the electric power generated to meet the demands of the growing consumers of electricity is insufficient, hence resulting in power instability and outage [1].
Automatic changeover switches find a wide scope of application wherever the reliability of electrical supply from the utilities is low and it is used wherever continuity of supply is necessary, for switching to an alternative source from the main supply and vice versa.