Wiring Diagram Star Delta. As we discussed earlier in the dol starter the three phase induction motor draws high amount of current at the time of starting. Star delta starter wiring diagram 3 phase with timer.
Dan wiring diagram tersebut dikenal juga sebagai rangkaian pengendali. I already explain how to connect power supply for star delta motorplease refer the wiring diagram at the bottom post. For control wiring of three phase star delta starter with timer r y b red yellow blue 3 phase lines cb general circuit breaker main main supply y star δ delta.
Line voltage on primary side 3 x phase voltage on primary side.
Red phase from main contactor. Now transformation ration k secondary phase voltage primary phase voltage. The motor terminal connection in the case of star and delta is shown in the above figure where u1 v1 w1 is the start terminal of each winding and u2 v2 w2 is the finish of each winding. The on delay timer diagram is also shown in the diagram.