1. A factory takes the following balanced loads from a 440-V, 1-phase, 50-Hz supply: (i) a lighting load of 20 kW (ii) a continuous motor load of 30 kVA at 0.5 p.f. lagging (ii) An intermittent welding load of 30 kVA at 0.5 p.f. lagging Calculate the kVA rating of the capacitor used to improve the over-all power factor to unity. Give also the value of the capacitor required.

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 2.48P
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please help me in my homework please

Homework
1. A factory takes the following balanced loads from a 440-V, 1-phase, 50-Hz
supply:
(i)
a lighting load of 20 kW
(ii)
a continuous motor load of 30 kVA at 0.5 p.f. lagging
(iii)
An intermittent welding load of 30 kVA at 0.5 p.f. lagging
Calculate the kVA rating of the capacitor used to improve the over-all
power factor to unity. Give also the value of the capacitor required.
Transcribed Image Text:Homework 1. A factory takes the following balanced loads from a 440-V, 1-phase, 50-Hz supply: (i) a lighting load of 20 kW (ii) a continuous motor load of 30 kVA at 0.5 p.f. lagging (iii) An intermittent welding load of 30 kVA at 0.5 p.f. lagging Calculate the kVA rating of the capacitor used to improve the over-all power factor to unity. Give also the value of the capacitor required.
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