STAR-DELTA FORWARD REVERSE MOTOR STARTER TEACHING AID FOR MARINE ELECTRO TECHNIQUE

Abstract

This study aims to develop a Star-Delta motor starter teaching aid that is able to measure current and voltage for an AC three-phase motor ranging from 3hp to 10hp that needs Star-Delta starter. This teaching aid is intended to clearly layout the flow of star-delta connection to help students achieve a higher understanding on Star-Delta motor starter. The motor is connected to the circuit which can show the direction of motor rotation. This project consists of Star- connection, Delta-connection, forward and reversing switch for a three-phase motor. It is found that the current and voltage readings during Star are lower compared to Delta. Based on the measurement that was taken from the three- phase motor, it is proven that Star-Delta motor starter can reduce voltage and overcome the problem of too high starting current during starting of motor.