II) For the transmission of electric power from power plantto home, as depicted in Fig. 21–25, where the electric powersent by the plant is 100 kW, about how far away could thehouse be from the power plant before power loss is 50%?Assume the wires have a resistance per unit length of 5 x10-5Ω /m High voltagetransmission lineStep-downtransformer Step-down(substation) transformerPowerplantStep-uptransformerHome12,000 V240,000 V7200 V 240 VFIGURE 21-25 The transmission of electric power from power plants to homes makes use of transformersat various stages.

Given Data: The power transmitted is, P = 100 kW. The voltage is, V = 12000 V. The stepping factor…

Answered: High voltage transmission line…

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter33: Alternating Current Circuits

Section: Chapter Questions

Problem 33.10CQ

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II) For the transmission of electric power from power plant
to home, as depicted in Fig. 21–25, where the electric power
sent by the plant is 100 kW, about how far away could the
house be from the power plant before power loss is 50%?
Assume the wires have a resistance per unit length of 5 x10-5Ω /m

High voltage
transmission line
Step-down
transformer Step-down
(substation) transformer
Power
plant
Step-up
transformer
Home
12,000 V
240,000 V
7200 V 240 V
FIGURE 21-25 The transmission of electric power from power plants to homes makes use of transformers
at various stages.

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