Star And Delta Control Wiring Diagram. A star delta starter wiring diagram 3 phase motor star delta starter diagram with connection of 3 phase motor electrical circuit diagram circuit diagram delta. Automatic star delta starter with timer for 3 phase ac motors.
Also see programing of push button and other requirements for simple motor starter is explained in plc tutorial. Star delta starter is a common used in domestic and industry sector to drive variant application such as chiller water pumpmachineryair compressor and many more equipment. A 8 pin timer is used.
Fuses f1 f2 and f3 protects the motor against overload.
A common wire is taken out from the neutral point which is called neutralthere is no such connection. As you see in the above star delta starter diagram first an nc push button switch is connected to stop the operation. The main circuit breaker q1 connect or disconnect the main three phase supply l1 l2 and l3 to the motor terminal t1 t2 and t3. The on delay timer diagram is also shown in the diagram.