Power supply (mains) from power generating stations and the alternative sources has become part of life especially in the developing countries such as Nigeria. The need to transfer services from mains supply to alternative power source such as generator set when mains fails can hardly be over emphasized. The incessant power outage from mains as well as unstable voltage and power surge of the mains which have destroyed numerous expensive loads in the system for the short time it is available have been addressed. The Automatic Transfer Switch (ATS) for a single phase electric power generator has been designed to enable automatic operation and power supply transfer between a public utility supply (mains) and a power generator. The automatic changeover switch designed, implemented and tested in this work is a single phase type that is compatible for single phase electrical generators. The main components were electromagnetic relays and integrated circuits. In addition to performing....
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