Control and Monitoring of 3 Phase Induction Motor Using PLC
Induction motors are widely used in various industrial fields due to their simple, robust and reliable operation. Hence, to get the proper output and efficiency continuous monitoring and controlling is necessary . In this paper, various aspects of three phase induction motor such as speed; temperature, voltage and current are monitored and controlled using the PLC. As sometimes the condition like over voltage, under voltage, overloading, overheating, over speed etc. may give rises to unwanted conditions for the motors . Therefore as soon as such condition arises the motor should be turned off automatically. There are various methods for controlling the induction motor such as online fault detection, stator monitoring techniques, systems based upon microcontrollers or PICs. In this paper the method adopted is with the help of PLC (Programmable Logic Controllers). Here the various factors are monitored using sensors and PLC . And if any harmful condition arises motor is turned off automatically.