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Star Delta Control Circuit Wiring Diagram. Here you can see the Control Circuit Diagram of Automatic Star Delta Starter. Star-Delta starter wiring diagram.
Next the circuit goes through the NC terminals of the Thermal Over Load Relay. Automatic Star Delta Starter design normally consists of three contactors an overload relay or circuit breaker and a timer for setting the time in the Star position starting. This equipmentappliance reduces starting current and starting torque.
Fuses F1 F2 and F3 Protects the motor against overload.
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. Automatic Star Delta Starter design normally consists of three contactors an overload relay or circuit breaker and a timer for setting the time in the Star position starting. The main circuit breaker CB Q1 serves as the main power supply switch that supplies electricity to the power circuit. Fuses F1 F2 and F3 Protects the motor against overload.