Model No. 13: This project is designed to provide low voltage start to induction motors. This is achieved by using star to delta conversion. This project uses a system to start a 3 phase motor at 440 volt AC mains supply 50 Hz with a set of 12 volt DC relays in star mode first and then to delta mode by an electronically adjustable timer.
Get more information about this project by visiting the page http://www.edgefxkits.com/automatic-star-delta-starter-using-relays-and-adjustable-electronic-timer-for-induction-motor