3. Three non-inductive resistances, each of 100 Q, are connected in star to a three- phase, 440-V supply. Three inductive coils, each of reactance 100 Q connected in delta are also connected to the supply. Calculate the line currents and the overall power factor of the system.

3. Three non-inductive resistances, each of 100 Q, are connected in star to a three- phase, 440-V supply. Three inductive coils, each of reactance 100 Q connected in delta are also connected to the supply. Calculate the line currents and the overall power factor of the system.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter7: Alternating Current, Power Distribution, And Voltage Systems

Section: Chapter Questions

Problem 8RQ

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Question

2.1.1

3. Three non-inductive resistances, each of 100 Q, are connected in star to a three-
phase, 440-V supply. Three inductive coils, each of reactance 100 Q connected
in delta are also connected to the supply. Calculate the line currents and the
overall power factor of the system.

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