Three-phase motor control circuit using PLC

Abstract

This research focuses on the design of a PLC experimental setup for controlling three-phase motors to facilitate practical learning in the subject of industrial motor control. The experimental setup comprises five worksheets: 1) Control of a 3-phase motor with time delay stop, 2) Control of a 3-phase motor starter circuit with time delay, 3) Control of a 3-phase induction motor with automatic switching, 4) Control of a 3-phase induction motor using the star-delta method, and 5) Control of a 3-phase induction motor with automatic sequencing. A sample was 20 undergraduate students of Bachelor of Electrical Engineering, Pichayabundit College. The satisfaction evaluation results found that the average evaluation score for the quality of the experimental design was 4.858, which is at a very good level. Additionally, the average evaluation score for the experimental kit manual was 4.88, also at a very good level. This experimental setup allows learners to apply their knowledge effectively in controlling motors in real industrial applications.