A star-delta starter motor control circuit is shown in the wiring schematic. When a strong motor starts up, this kind of starter helps to lessen the surge in current. A timed relay and two magnetic contactors are used in this circuit. To lower the starting current in the first stage, the star contactor connects the motor windings in a star pattern. After a determined delay time, the star contactor disengages and the delta contactor activates. By doing this, the motor windings are switched to a delta arrangement, enabling full power operation. By following the wire connections and component interactions, you can see how this system minimizes the starting current and transitions the motor to normal operation.
