This video shows a practical demonstration of a complete star-delta starter connection with a detailed explanation.
The video explains how to wire both the power circuit and the control circuit. Also indicating lamps were used, to show at anytime, whether the motor is running in star or delta configurations.

This video will fully teach you, how to wire your own star-delta motor starter.
To be able to clearly understand the concept of the star delta control connection, you will have to understand a few things, such as: "how to wire a timer", "how to interlock two contactors", "how to connect 3-phase motor terminals in star and delta".
I have separate videos on all these topics. click on the links below, to watch them for a clearer understanding.
   • 3-PHASE MOTOR TESTING WITH MULTIMETER  
   • STAR DELTA CONNECTION  
   • HOW TO WIRE AN 8PIN TIMER FOR |"ON DE...  
   • HOW TO WIRE A TIMER TO A CONTACTOR  
   • The Ultimate Comparison: Starting vs....  
   • How to interlock two contactors | Com...  
   • how to connect 3phase motor in star o...  
   • Forward and reverse motor control com...  
   • Complete wiring | Automatic changeove...  
   • how to build 3-phase automatic change...  
   • 3phase motor winding connection at th...  
   • How to check for open circuit in elec...  
   • #1 Contactors explained | How contact...  
   • how to build 3-phase automatic change...  
   • #1 Direct-on-line Well Explained. | p...  
   • #2 Direct-on-line control circuit Wel...  
   • OVERLOAD RELAY CONNECTION EXPLAINED  
   • HOW TO WIRE D.O.L STARTER  PART2  |PO...  
   • 1 Photo sensor +1 Contactor to power ...  
   • Power Contactors |Which one do I need...