At site, we have 30Kw motor (3 phase, 400V,50Hz) and FLC
54A as per the nameplate. At the time of starting it draws
840A instead of 390A (7.2%). As per the data sheet also its
390A starting current. it thru a dol starter from the MCC.
can anyone tell what is the problem in the motor

Answer Posted / kannapa

do not use dol starer above 2.2kw rated motors

use star to delta starter it can withstand.

check also connections.

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