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Categories >> Engineering >> Electrical Engineering
 
 


 

 
Question What is the d/f between DOL & star delta starter & automatic
star delta starter?
 Question Asked At :: indeco, what is the rating of fuse in building?, wipro, ninl, engineering ac machines assigment, dalkia, novotel, rajendra mallick, star delta starter used for?, rmh control systems, acc cement
 Question Submitted By :: ravi
I also faced this Question!!    
Answer Posted By  
 
Answer
In case of Star Delta starter the motor intially will run
in star connection and when 80% of rated speed picks, the
motor change over to delta connection. With this star delta
connection we are able to reduce starting current by 1/3 of
DOL starting current and starting torque also.

Is This Answer Correct ?    196 Yes 30 No


 
  suresh pulipati
 
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