A generating station transmits 20 MW of power through lines of total resistance 2 Ω. Initially the transmission voltage is 66 kV; later it is increased to 220 kV while the power delivered remains the same. The station operates at an average load factor of 75 % throughout the year.
(a) Calculate the power saved in the transmission lines after the voltage increase.
(b) Determine the annual energy saved, in MWh, due to this change.
a. Calculate the power saved in the transmission lines after the voltage increase.
b. Determine the annual energy saved, in MWh, due to this change.