Investigate a 6 pole motor with a rated speed of 985 rev/min
Using the motor selection nomogram and plotting the torque requirements for the minimum and maximum speeds, a 75 kW, 415 volt, 6-pole motor should be selected based on the motor load capacity at both the minimum speed of 600 rev/m and maximum speed of 1400 rev/m. The motor frame size is 280 M and current rating 135 amps.