Star-Delta Starters are used to start larger ac induction motors used in industries, such as Manufacturing and Marine. Like ‘Direct Online’ (DOL) starters, which are also used for ac induction motors starting (though smaller, lower current motors), Star-Delta starters only turn the motor on and off at a single speed. With the growth in the …
Star-Delta Starter
A Star-Delta (or Wye-Delta) starter is used in electrical engineering to start larger three phase motors, typically over 4 KW (5 HP). The Star-Delta starter is chosen, rather than the cheaper D.O.L (Direct On Line) for larger motors, because when a motor is started a surge current is generated for a short initial period. This …