A power supplies 520 kW [note units] of power to a factory through wires with a transmission resistance (loss) of 3.0 Ω. a. How much power is lost in transmission if the electricity is delivered at 12,000 V? b. Determine the efficiency (%) of transmission at 12,000 V. c. How much power is lost in line transmission if the electricity is delivered at 50,000 V?
A power supplies 520 kW [note units] of power to a factory through wires with a transmission resistance (loss) of 3.0 Ω. a. How much power is lost in transmission if the electricity is delivered at 12,000 V? b. Determine the efficiency (%) of transmission at 12,000 V. c. How much power is lost in line transmission if the electricity is delivered at 50,000 V?
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ISBN:9780133923605
Author:Robert L. Boylestad
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A power supplies 520 kW [note units] of power to a factory through wires with a transmission resistance (loss) of 3.0 Ω.
a. How much power is lost in transmission if the electricity is delivered at 12,000 V?
b. Determine the efficiency (%) of transmission at 12,000 V.
c. How much power is lost in line transmission if the electricity is delivered at 50,000 V?
d. Determine the efficiency (%) of transmission at 50,000 V.
e. Which transmission voltage is more efficient?
Transcribed Image Text:Primary Transmission
Generating Station
11, 11.5, 12 or 13kV
220 or
500 kV
3 Phase 3 Wire System
httplelectricaltechnologyorg/
Step-Up Transformer
(Power Transformer)
Secondary Tranşmission
3 Phase 3 Wire System
Step-Down
Transformep
220 or 500V
/ 132 Or 66 kN
http://electricaltechnology.org/
Step-Down
Transformer
132 or 66 kV I 11 kV
11kV/ 400 & 230 V
3 Pase 4 Wire System
3 Phase 3 Wire System
Primary
Distribution
Secondary
Distribution
Distribution
Transformer
http://elecricaltechnoogy.o
Design By:
Engr Wasim Khan
Residential Consumers
Copyright Material @ http://electricaltechnology.org/
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