K1: Timing relay approx. 15 second
Q11: Mains contactor (Magnetic Contactor)
Q13: Star contactor (Magnetic Contactor)
Q15: Delta contactor (Magnetic Contactor)
ITS A STAR DELTA 3-PHASE WARING DIAGRAMDescription
Pushbutton I energizes timing relay K1. The normally open contact K1/17-18 (instantaneous contact) which applies voltage to star contactor Q13, which closes and applies voltage to mains contactor Q11 via normally open contact Q13/14-13.
Q11 and Q13 maintain themselves via the normally open contacts Q11/14–13 and Q11/44–43. Q11 applies voltage to motor M1 in star connection.
Its Second Picture For Auxiliary Diagram !