2. Three series loads are drawing 20A ms current through a 60Hz source. Load 1 is an 400W, 0.8 lagging induction motor. Load 2 is a 500VA, 0.6 lagging power factor and load 3 is a 2 ohm incandescent bulb. a) What is the total VA of the combined load? b) What is the overall PF of the combined load? c) What RMS voltage is the combined load operating?

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
Chapter2: Fundamentals
Section: Chapter Questions
Problem 2.27P: An industrial load consisting of a bank of induction motors consumes 50 kW at a power factor of 0.8...
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2. Three series loads are drawing 20A ms current through a 60Hz source. Load 1 is an 400W, 0.8 lagging
induction motor. Load 2 is a 500VA, 0.6 lagging power factor and load 3 is a 2 ohm incandescent bulb.
a) What is the total VA of the combined load?
b) What is the overall PF of the combined load?
c) What RMS voltage is the combined load operating?
d) What capacitor VAR must be installed in parallel to the combine load to
improve its overall PF to unity?
e) What is its approximate capacitance in microfarad?
Transcribed Image Text:2. Three series loads are drawing 20A ms current through a 60Hz source. Load 1 is an 400W, 0.8 lagging induction motor. Load 2 is a 500VA, 0.6 lagging power factor and load 3 is a 2 ohm incandescent bulb. a) What is the total VA of the combined load? b) What is the overall PF of the combined load? c) What RMS voltage is the combined load operating? d) What capacitor VAR must be installed in parallel to the combine load to improve its overall PF to unity? e) What is its approximate capacitance in microfarad?
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