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A factory has an electrical load of 800 kW at a lag- ging power factor of 0.6. An additional variable power factor load is to be added to the factory. The new load will add 160 kW to the real power load of the factory. The power factor of the added load is to be adjusted so that the overall power factor of the factory is 0.96 lagging. a) Specify the reactive power associated with the added load. b) Does the added load absorb or deliver magne- tizing vars? c) What is the power factor of the additional load? d) Assume that the voltage at the input to the fac- tory is 1200 V (rms). What is the rms magnitude of the current into the factory before the vari- able power factor load is added? e) What is the rms magnitude of the current into the factory after the variable power factor load has been added?

A factory has an electrical load of 800 kW at a lag- ging power factor of 0.6. An additional variable power factor load is to be added to the factory. The new load will add 160 kW to the real power load of the factory. The power factor of the added load is to be adjusted so that the overall power factor of the factory is 0.96 lagging. a) Specify the reactive power associated with the added load. b) Does the added load absorb or deliver magne- tizing vars? c) What is the power factor of the additional load? d) Assume that the voltage at the input to the fac- tory is 1200 V (rms). What is the rms magnitude of the current into the factory before the vari- able power factor load is added? e) What is the rms magnitude of the current into the factory after the variable power factor load has been added?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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10.34 A factory has an electrical load of 800 kW at a lag- ging power factor of 0.6. An additional variable power factor load is to be added to the factory. The new load will add 160 kW to the real power load of the factory. The power factor of the added load is to be adjusted so that the overall power factor of the factory is 0.96 lagging. a) Specify the reactive power associated with the added load. b) Does the added load absorb or deliver magne- tizing vars? c) What is the power factor of the additional load? d) Assume that the voltage at the input to the fac- tory is 1200 V (rms). What is the rms magnitude of the current into the factory before the vari- able power factor load is added? What is the rms magnitude of the current into the factory after the variable power factor load has been added?
Transcribed Image Text:10.34 A factory has an electrical load of 800 kW at a lag- ging power factor of 0.6. An additional variable power factor load is to be added to the factory. The new load will add 160 kW to the real power load of the factory. The power factor of the added load is to be adjusted so that the overall power factor of the factory is 0.96 lagging. a) Specify the reactive power associated with the added load. b) Does the added load absorb or deliver magne- tizing vars? c) What is the power factor of the additional load? d) Assume that the voltage at the input to the fac- tory is 1200 V (rms). What is the rms magnitude of the current into the factory before the vari- able power factor load is added? What is the rms magnitude of the current into the factory after the variable power factor load has been added?
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