on and impulse turbines P11.84 Turbines are to be installed where the net head is 400 ft and the flow rate 250,000 gal/min. Discuss the type, number, and size of turbine that might be selected if the generator selected is
(a) 48-pole, 60-cycle (n 150 r/min) and
(b) 8-pole (n = 900 r/min).
Why are at least two turbines desirable from a planning point of view?