Question: Three parallel single - phase loads are supplied from a 2 2 0 - V rms , 6 0 Hz single - phase supply. The
Three parallel singlephase loads are supplied from a V rms Hz singlephase supply. The load data is given below Load : kVA Load : kW pf lagging Load : kvar, pf leading Answer the following questions a Points Determine the total active, reactive, apparent, and complex power delivered by the source. b Points Determine the supply current and the load power factor. c Points Calculate the kvar rating of the capacitor required to improve the power factor of the load to lagging. d Points Determine the supply current when the capacitor in part c is connected across the loads. e Points Compare the current magnitude in part b and part d Does the supply current increase or decrease? State valid reasons. f Points What are the advantages of improving the power factor?
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