# hw6 - EE 313 Problem Set 6 Due Tuesday, November 25th Note:...

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EE 313 – Problem Set 6 Due Tuesday, November 25 th Note: You only need to give the a-phase values. 1. A balanced, three-phase, Y-connected source has a line voltage magnitude of 300 Vrms. It is connected to two balanced, 3-phase, Y-connected loads. The first load absorbs a total 3-phase average power15 kW at a PF = 0.45 lagging. The second load absorbs a total 3-phase complex power of 20 70º kVA. a. Draw a per phase circuit of this system. What are the line to line voltages? b. What is the phase voltage, V P ? c. What are the line currents? d. What is the per phase impedance for each load? e. What is the total average power delivered by the source? f. Design a 3-phase, Y-connected, balanced corrective load that will change the total power factor of all three loads to 0.95 lagging. Remember that the average power delivered and the line voltage magnitude may not change. 2. A balanced three-phase, Y-connected source has a line to neutral voltage magnitude of 250 V rms. It is connected to two 3-phase, balanced,

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## This note was uploaded on 07/22/2011 for the course EE 313 taught by Professor English during the Fall '09 term at University of Alabama - Huntsville.

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hw6 - EE 313 Problem Set 6 Due Tuesday, November 25th Note:...

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