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ssume that the two balanced loads in Fig. are supplied by an 840-V rms 60-Hz line. Load I is Y-connected with 30+ j40 S2 per phase, while load 2 is a balanced three-phase motor drawing 48 kW at a power factor of 0.8 lagging. Assuming the abc sequence, calculate: (a) the complex power absorbed by the combined load, (b) the kVAR rating of each of the three capacitors A-connected in parallel with the load to raise the power factor to unity, and (c) the current drawn from the supply at unity power factor condition.

ssume that the two balanced loads in Fig. are supplied by an 840-V rms 60-Hz line. Load I is Y-connected with 30+ j40 S2 per phase, while load 2 is a balanced three-phase motor drawing 48 kW at a power factor of 0.8 lagging. Assuming the abc sequence, calculate: (a) the complex power absorbed by the combined load, (b) the kVAR rating of each of the three capacitors A-connected in parallel with the load to raise the power factor to unity, and (c) the current drawn from the supply at unity power factor condition.

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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Assume that the two balanced loads in Fig. are supplied by an 840-V rms 60-Hz line. Load I is Y-connected with 30+ j40 S2 per phase, while load 2 is a balanced three-phase motor drawing 48 kW at a power factor of 0.8 lagging. Assuming the abc sequence, calculate: (a) the complex power absorbed by the combined load, (b) the kVAR rating of each of the three capacitors A-connected in parallel with the load to raise the power factor to unity, and (c) the current drawn from the supply at unity power factor condition.

 

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