ABSTRACT
Power supply in Nigeria and most developing countries of the world is anything but stable. This has adverse effects on the consumers of the electricity and the equipments that are operated from the mains sources of electricity supply in these parts of the world. Automatic change over switch system is used to ensure continuous supply to load in case the mains supply is not healthy or disconnected. This project designs and constructs of an automatic change over switch with generator starter and cut-off. In this paper, we provide an automatic switching mechanism that transfers the consumer loads to a power source from a generator in the case of power failure in the main supply. It automatically detects when power has been restored to the mains supply and returns the loads to this source while turning off the power from the generator set. This mechanism has been tested and we recorded a great result. It thus holds an important key in the provision of a continuous power supply through an ear seamless switching between the mains supply and an alternative stand by source like the generator set.
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