(a) How many Mvars of shunt capacitors are required to increase the power factor on a 10 MVA load from 0.85 to 0.9 lagging?
(b) How many Mvars of shunt capacitors are required to increase the power factor on a 10 MVA load from 0.90- to 0.95 lagging?
(c) Which requires more reactive power, improving a low power-factor load or a high power-factor load?