what is different the DOL Starter and Star Delta STARTER

Answer Posted / panil ahir

DOL is just running protection of motor while star-delta is running and starting protection of motor. It reduces the starting current of motor by increasing the resistance value of coils. As the starting resistance value is doubled the actual coil resistance, starting current reduces 1/3 times to protect the motor coils. 

Is This Answer Correct ?    10 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is difference between line differential and transformer differential?

1243


What does the term supermesh means?

671


When and where resistance earthing is used ? How to calculate the time constant for earth fault

1340


what is kondo syatem in eletrical traction

1670


what is basic difference betmeen normal & flame proof motor??

1646






sir i want previous entrance exam papers for written test

1698


What are books to be referred for KPTCL exam?

3232


What happened ,If 3 phase clearance not maintained in 33KV Line,11KV LIne etc?

1824


What is the difference between cylindrical-type and sandwich-type winding?

971


plz tel me syllabus and exam date 4 jr executive engg (electrical)

1498


Why the power generated in dams is complex power? Why the generators in dams cannot produce Real power directly (i.e power which has zero reactive part)?

1325


A low wet bulb temperature indicates

699


If we have 11 kv RYB Phase single core cable near about. Then wht effect and losses

1353


How many sprinklers should be in one pipe line?

1428


what is plunger and what's the use of it in motor alignment?

2018