The Star-Delta (Y-Δ) 3-phase Motor Starting Method by Automatic star-delta starter with Timer.
Power Circuit Diagram:
Its very usefully circuits .
should be use one more timer for disconnect Main and Star contactor ... if delta contactor faulty. its very importend.
It's very inportant circuit for industrial aria
i also have diagram but how can i sent it to u...but may be this one helps u star connection is A1 B2 C3 close the other ends and for delta connect A1 B2 , B1 C2 , C1 A2....
Dear...Upload it to our FB page...
i want about how to calculate a resistor.
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