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hw4 - a Find the phasor impedance of each load and the...

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Name:______________________________________________ EE 313 – Homework Assignment 4 Total Points: 20 Fall 2008 Score:_______ Due Thursday, October 23 rd 1. Find the load impedance, Z L, such that the load absorbs maximum average power. What is this maximum average power? 2. A voltage source serves the following loads, which are all connected in parallel: Load 1 – 20kVAR at PF=.4 lagging Load 2 – 10 50 ˚ kVA Load 3 – 6kW at PF = 1 The magnitude of the source voltage is 250 volts rms and the system operates at 60 Hz.
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Unformatted text preview: a) Find the phasor impedance of each load and the phasor current of each load. b) Find the magnitude of the source current. c) Find the power factor of the combined loads as seen by the source. d) Find the total complex power delivered by the source. e) Design a corrective load that will decrease the source current magnitude by 30%. Is such a load possible? If so, find the impedance of the load and then the component value....
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