Three parallel three-phase loads are supplied from a 207.85-Vrms, 60-Hz three-phase supply. The loads are as follows: Load 1: 11 kW with 0.6 lagging power factor. Load 2: Resistive load of 11 kW. Load 3: capacitor load of 9 kvar. (a) What is the total system kW, kvar, power factor, and the supply current per phase? (b) What is the system power factor and the supply current per phase when the Load-1 and Load-2 are operating but the Load-3 is switched off?
Three parallel three-phase loads are supplied from a 207.85-Vrms, 60-Hz three-phase supply. The loads are as follows: Load 1: 11 kW with 0.6 lagging power factor. Load 2: Resistive load of 11 kW. Load 3: capacitor load of 9 kvar. (a) What is the total system kW, kvar, power factor, and the supply current per phase? (b) What is the system power factor and the supply current per phase when the Load-1 and Load-2 are operating but the Load-3 is switched off?
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 2.44P: Two balanced three-phase loads that are connected in parallel are fed by a three-phase line having a...
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Three parallel three-phase loads are supplied from a 207.85-Vrms, 60-Hz three-phase supply. The
loads are as follows:
Load 1: 11 kW with 0.6 lagging power factor.
Load 2: Resistive load of 11 kW.
Load 3: capacitor load of 9 kvar.
(a) What is the total system kW, kvar, power factor, and the supply current per phase?
(b) What is the system power factor and the supply current per phase when the Load-1 and Load-2 are
operating but the Load-3 is switched off?
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