Design And Implementation Of An Automatic Active Three Phase Selector For Single Phase Load

ABSTRACT

This project presents a system which is a power based auto select technology which automatically

selects an active phase from a three phase supply, for single phase load. This eliminate the use or'

conventional manual changeover using rewireable fuses. This design was implemented using a

combination of Op-Amps 555 timer and relay (switch) circuit to achieve the set aim. Testing results

showed that the load will continue to receive power even when failure occurs in any of the three phase supply. Areas of application includes homes and small business premises