STAR DELTA STARTER CONTROL DIAGRAM

FIRST OF ALL SUPPLY TAKEN FROM R PHASE THEN A MCB THEN overload relay then SUPPLY GOES TO SELECTOR SWITCH ,HERE WE CAN SELECT AUTO/MANUAL MODE.
phir supply NC push button par jayegi then NO button par . jaise hi ham no push button ko press karege supply sedhe timer par jayegi . timer ka T1 on ho jayega aur star contactor ka t1 close ho jayega aur star conactor on ho jayega. jaise hi star contactor on hoga to star no nc ban jayega  and nc no ban jayega aur supply main contactor me bhi aa jayegi. .aur main contactor bhi on ho jayega. sath hi m1 and m2 bhi close ho jayeye ab main contactor me supply NC push buttton se aayegi aur timer par bhi supply m1 m2 se jayegi . kuch second baad t1 off ho jayega aur t2 on ho jayega . ab delta contactor on ho jayega aur star off ho jayega. aur motor me supply main aur delta contactor se jayegi.