A small manufacturing plant has the following connected loads: Load 1 (L1): lighting/outlet/appliances 4,500 W at 0.85 pf LAG Load 2 (L2): compressor motors/pumps 37,300 W at 0.75 pf LAG Load 3 (L3) : heaters Assume that the capacitor bank is installed only for question 5. 15,000 W at 0.95 pf LAG Vsource 440 VAC (rms) 60 Hz L1 L2 L3 Capacitor Bank for power factor improvement

Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter5: Transmission Lines: Steady-state Operation
Section: Chapter Questions
Problem 5.44P
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From the image answer the following:

1. Calculate the (lagging) power factor of the total load of the plant in the image
2. A capacitor bank will be installed in parallel to the loads to improve the power factor of the total load. How much Reactive Power in kiloVAR will the capacitor bank have to supply to improve the power factor to 98%, lagging?

A small manufacturing plant has the following connected loads:
Load 1 (L1): lighting/outlet/appliances
4,500 W at 0.85 pf LAG
Load 2 (L2): compressor motors/pumps
37,300 W at 0.75 pf LAG
Load 3 (L3) : heaters
Assume that the capacitor bank is installed only for question 5.
15,000 W at 0.95 pf LAG
Vsource
440 VAC (rms)
60 Hz
L1
L2
L3
Capacitor Bank
for
power factor
improvement
Transcribed Image Text:A small manufacturing plant has the following connected loads: Load 1 (L1): lighting/outlet/appliances 4,500 W at 0.85 pf LAG Load 2 (L2): compressor motors/pumps 37,300 W at 0.75 pf LAG Load 3 (L3) : heaters Assume that the capacitor bank is installed only for question 5. 15,000 W at 0.95 pf LAG Vsource 440 VAC (rms) 60 Hz L1 L2 L3 Capacitor Bank for power factor improvement
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