Three Phase Appliance Protector

This project on three phase application protector describes the need of a 3 phase devices safety as sometimes due to failure of any phase, makes the appliance prone to erratic functioning and may even lead to failure. Hence it is important to monitor the availability of the three-phase supply and switch off the appliance in the event of failure of one or two phases. You can also Subscribe to FINAL YEAR PROJECT'S by Email for more such projects and seminar.



This project requires three-phase supply, three 12V relays and a timer IC NE555 along with 230V coil contactor having four poles. The main advantage of this protector circuit is that it protects three-phase appliances from failure of any of the mounted on the backside of cabinet. Connect the appliance through external wires.

Recommended Project: Unified Power Flow Controller (UPFC)

The test system considered in the project is worked out for the best protection for the 3- phase appliance in absence of any of the phase. The main objective of this prospective protector is to maintain the efficiency of the appliance which we use with the 3- phase supply. This report contains circuit diagram of 3 phase appliance protector and its complete working. Use it for your reference and study purpose only.

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