Answer / ipsa

to improve the starting tourqe and power factor.

Answer / jeevitha

To limit the starting current.During starting the current will be 4-5 times more than that of the total current hence in order to limit the starting current the DOL starter is used

Answer / elango .k

dol starter doesnt make any change in the starting torque.

Answer / yvb

Absolutely there is no specific advantage if you are a
small user. for heavy industries it is advantageous coz of
less parts(contactors & timers) comparitive to Y/D
starter.for industries that dip when we start a motor using
DOL will take their grid or CPP ,where as for small users
they may not have such facility. so the flour mill users
will use Y/D stater to avoid sudden load on supply lines.

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