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Three loads connected in parallel across a 1000-V (RMS), 60-Hz single-phase source. Load 1: Inductive load, 125 kVA, 0.28PF lagging Load 2: Capacitive load, 10 kW, 40 kVAR Load 3: Resistive load, 15 kW a)    Determine the total kW, kvar, kva, and supply power factor. b)    In order to improve the power factor to 0.8 lagging, a capacitor of negligible resistance is connected in parallel with the above loads. Find the KVAR rating of that capacitor and the capacitance in μf . c)    Comment on the magnitude of the supply current after adding the capacitor

Three loads connected in parallel across a 1000-V (RMS), 60-Hz single-phase source. Load 1: Inductive load, 125 kVA, 0.28PF lagging Load 2: Capacitive load, 10 kW, 40 kVAR Load 3: Resistive load, 15 kW a)    Determine the total kW, kvar, kva, and supply power factor. b)    In order to improve the power factor to 0.8 lagging, a capacitor of negligible resistance is connected in parallel with the above loads. Find the KVAR rating of that capacitor and the capacitance in μf . c)    Comment on the magnitude of the supply current after adding the capacitor

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Three loads connected in parallel across a 1000-V (RMS), 60-Hz single-phase source.
Load 1: Inductive load, 125 kVA, 0.28PF lagging
Load 2: Capacitive load, 10 kW, 40 kVAR
Load 3: Resistive load, 15 kW
a)    Determine the total kW, kvar, kva, and supply power factor.
b)    In order to improve the power factor to 0.8 lagging, a capacitor of negligible resistance is
connected in parallel with the above loads. Find the KVAR rating of that capacitor and the
capacitance in μf .
c)    Comment on the magnitude of the supply current after adding the capacitor

 

Load Load Load 1000 V 1 3
Transcribed Image Text:Load Load Load 1000 V 1 3
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