Star delta connection without motor !Use incandescent light bulb

What is Star Delta Connection in a electric motor?

Star-Delta connection is a type of starting method of 3 phase AC Induction Motor. Normally Starter is used for smooth starting of a motor. Star-Delta starter starts motor by reducing the initial current. Initially the motor is connected to star connection.

Why do we use Star and Delta Connection?

In a (squirrel) cage induction motor, the starter is used only to decrease the input voltage to the motor so as to decrease the starting current. It is T.P.D.T switch used to first start the motor with the winding connected in star and then switch for delta connection in running position

How does a star Delta Motor work?

Working Principle of Star-Delta Starter. This is the reduced voltage starting method. ... During starting the motor windings are connected in star configuration and this reduces the voltage across each winding 3. This also reduces the torque by a factor of three.