This circuit protects the grid transformer from over current at connected load. If current increases to a certain level, an alarm indication warns at the control panel. If the current further increases, the total load is disconnected with a relay circuit.
This is a complete, assembled working project / model (duly tested) at our work shop. This is a handmade project on a general purpose PCB and uses Electronics / Electrical components as per requirement of a particular model. A rough report & study material related to project will be mailed to student on request.