Three Phase Transformer Fault Detection and Protection using PLC

Main aim of studying this project is to design and implementation of PLC programmable logic controllers) automation to monitor as well as to diagnose condition such as load, currents, transformer temperatures and voltages of the transformers which is one of the most important Equipment in the power system network. The Data acquisition, condition monitoring, automatic controlling are important issues as there are large no of transformers and various components over a wide area in power system. In proposed system with PLC, relays and sensors are used to detect the faults of transformer such as overloading, overvoltage, under-voltage, phase to phase fault and over temperature faults. Probability of faults on Transformers is undoubtedly more and hence protection of transformer is highly essential. Automation control is used for various systems for operation of equipment. Some processes are completely automated. Benefit of automation is it saves labour and saves energy and material; improve quality, accuracy and precision, reduces dependency on human presence and decision making for any process.