Simple Star Delta Starter Control Circuit Diagram. When the fault occurs the thermal overload relay will trip the circuit. 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.
As you see in the above star delta starter diagram first an nc push button switch is connected to stop the operation. So this time i want share my simple star delta circuit diagram completed with power and control line circuit i hope it can be as basic reference for all electrician about star delta starter diagram. When the fault occurs the thermal overload relay will trip the circuit.
The power circuit uses to create contact between the motor and three phase power supply.
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. When the fault occurs the thermal overload relay will trip the circuit. As you see in the above star delta starter diagram first an nc push button switch is connected to stop the operation. Then once the motor reaches the required speed the motor is connected in through a delta connection.
