STAR DELTA STARTER

A Star Delta Starter is the most utilized form of motor starter being used when compared to other types of motor starting methods for induction motors. Star Delta Starters are used for cage induction motors designed to function using the delta connected stator winding. The majority of induction motors are started using the DOL method, but when very large powerful induction motors are started, they can create a disturbance of the supply line voltage due to large starting current surges. To limit this starting current surge powerful induction motors are started at a reduced voltage and then have full supply voltage reconnected when they run up to near full speed.

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