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HW35-Due_Dec7_2011

# HW35-Due_Dec7_2011 - P ave = 40 kW operating at a power...

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Homework 35 ECE201: Linear Circuit Analysis Due in class: Wednesday, December 7 th , 2011 Question 1 (a) Find the complex power delivered to a load that absorbs 2 kW of average power with pf = 0.90 lagging. (b) Find the complex power delivered to a load that absorbs 4 kW of average power with pf = 0.90 leading. Question 2 As shown in panel (b) below, a capacitor is put in parallel with a motor using average power
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Unformatted text preview: P ave = 40 kW operating at a power factor of 0.7 lagging to boost it to a power factor of 0.9 lagging. The voltage across the parallel motor-capacitor combination is 230 0 ∠ ° V rms . The power relationships are shown in panel (a) below. If the frequency of operation is 120 ϖ π = , compute the proper value of the capacitance, C (in mF). (a) (b)...
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