Priority Based Switching of Loads Using PLC and SCADA

Abstract

PLC is a medium between electrical systems and personal computers for SCADA to take input and output bits. SCADA and PLC communication systems make it possible to integrate protection control and monitor electrical parameters together for maximum benefit. The idea is to provide continuous power supply to the load, based on the priority by switching the loads. In case any one of the sources is absent i.e., source 1, source 2 and source 3, then automatically the least priority load cuts-off and first priority load gets supply continuously.