This project uses a 555 timer to change in between two relays owning Star & Delta link. Initially, it should run on Star link for lower voltage & then switch to Delta relationship for entire pace. Expense – Determine the price range dependant on components and resources necessary. Reusing elements https://hiresomeonetotakemyelectr00997.theblogfairy.com/28265494/about-hire-someone-to-take-my-electrical-assignment