The Application of Three-Phase Induction Motor Protection Automated System To Overcome Overload Conditions and Zelio Logic-Based High Temperatures

The protection system on a three-phase induction motor is designed so that the motor can be used for a longer period of time and avoid damage. Disturbances such as overloads and high temperatures that occur can interfere with the performance of the induction motor and shorten its use time. Therefore, a protection system for the induction motor is needed. The method used in this paper is the design of a simulation of an overload and high temperature protection system on a three-phase induction motor with a Zelio smart relay using Zeliosoft 2.0 software by making a Ladder diagram as well as the simulation. To protect the three-phase induction motor, additional components are used, namely the Thermal Overload Relay (TOR) for overload protection and the Temperature Controller for high temperatures. The maximum limit of current to be protected by TOR is 1.6 A, and the maximum temperature limit to be protected by the Temperature Controller is 50 °C. Both components are integrated by the Zelio smart relay. In the process stage of the program itself, the TOR and Temperature Controller will send a trip signal to the Zelio smart relay when there is more load interference and a high temperature. The Zelio smart relay will then secure the motor from interference by stopping the power to the motor.