EM-9. Shaft height and mounting
There is an oil pump with Q=55 l/s, H=50 m, efficiency 82%, speed 1400 rpm. Conditions:
- Clean dry room with abundant heat removal capability.
- Grid 400 V.
- Cable length - 200 m.
The plan is to replace old SCIM driving the pump with IE4 motor. Shaft height of the old motor is 180 mm and the pump is fixed to the frame together with the motor. Is the replacement possible? Consider several variants. Compare them. First consider SCIM only. Then solve the problem using other motor types.
Note that density of oil is not the same as density of water.