EM-5. Protection (IP class) vs size and cost

Design drive trains for the four different applications below. Note different environmental conditions where the electric machines will be operating and choose correct IP class for the machines.

Set the same rated speed (300 rpm) and the same voltage (690 V) in all applications. Set PMSM as the motor type.

• Case 1. Pump: diary (for different trains)
  • H=50 m, Q=50 l/s, ƞ=79 %, speed 300

• Case 2. Conveyor: cement plant
  • min speed - 100 rpm, max speed - 300 rpm, Torque - 0,9 kNm

• Case 3. Wind turbine: air conditioned compartment(nacelle)
  • Rated speed - 200 rpm, overspeed - 1,2, Torque - 1 kNm

• Case 4. Winder: Clean paper winding room
  • Drum diameter (empty) - 0,3 m, Drum diameter (full) - 0,5 m, Force - 4 kN, Speed of the line (rated) - 3 m/s

Record: mechanism rated power, motor designation, IP class, weight and cost of the electric machines you have chosen for the four applications above. Make sure you keep cooling and other «influential» parameters the same. Include these parameters in your report. Comment on the differences between the motors chosen.