Star Delta Starter Power Diagram. In this tutorial we will show the star delta y δ 3 phase induction ac motor starting method by automatic star delta starter with timer with schematic power control and wiring diagram as well as how star delta starter works and their applications with advantages and disadvantages. The star contactor serves to initially short the secondary terminal of the motor u2 v2 w2 for the start sequence during the initial run of the motor from standstill.
In effect there are four states. Then once the motor reaches the required speed the motor is connected in through a delta connection. The control circuit uses to control the starter circuit such as on off and tripping operations.
In this tutorial we will show the star delta y δ 3 phase induction ac motor starting method by automatic star delta starter with timer with schematic power control and wiring diagram as well as how star delta starter works and their applications with advantages and disadvantages.
In the above star delta starter control circuit wiring diagram with timer and normally close push button normally open push button switch. In effect there are four states. A 8 pin timer is used. R y b red yellow blue 3 phase lines c b general circuit breakermain mai supplyy starδ deltac1 c2 c3 contatcors power diagram o l over load relayno normally opennc normally closed k1 contactor contactor coil k1 no contactor holding coil normally open k1 k2 k3 contators for control diagram.
