Answer / k.prakashchandra

Over current rating depends on cooling efficiency of the
motor.e.g. A few Coimbatore motors can run at upto even 150
% of rated load continuously.To set the over load
relay,calculate full load current and add 5 or 10% so that
it does not trip on full load.

Answer / dk gnfc

Overcurrent means short ckt in CTMM relay for motor protection, so short ckt settinng alway 700 to 1300% in every 3 phase motor

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