3.18 A three-phase, 50-kVA, 600-V, 60-Hz generator operates at rated terminal volt- age and supplies a line current of 48 A per phase at a 0.8 lagging power factor to a balanced three-phase load. Determine the real, reactive, and apparent power.
3.18 A three-phase, 50-kVA, 600-V, 60-Hz generator operates at rated terminal volt- age and supplies a line current of 48 A per phase at a 0.8 lagging power factor to a balanced three-phase load. Determine the real, reactive, and apparent power.
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...
Related questions
Question
3.19 from tge same book
Pls do fast and its urgent
Try to give solution in typed form
![ine
her
s of
a. Find the current drawn by the motor.
b. Find the real and reactive power absorbed by the motor.
3.18 A three-phase, 50-kVA, 600-V, 60-Hz generator operates at rated terminal volt-
age and supplies a line current of 48 A per phase at a 0.8 lagging power factor to a
balanced three-phase load. Determine the real, reactive, and apparent power.
3.19 A 345-kV, three-phase transmission line delivers 500 MVA, 0.866 power factor
lagging, to a three-phase load connected to its receiving-end terminals. Assume that
the load is A connected and the voltage at the receiving end is 345 kV.
30⁰
a. Find the complex load impedance per phase.
b. Calculate the line and phase currents.
c. Find the real and reactive power per phase.
d. Find the total real and reactive power.
3.20 Repeat Problem 3.19 assuming that the load is wye connected.
3.21 A three-phase load draws 120 kW at a power factor of 0.85 lagging from a
440-V bus. In parallel with this load is a three-phase capacitor bank that is rated 50
kVAR. Find (a) the total line current and (b) the resultant power factor.
3.22 A three-phase motor draws 40 kVA at 0.65 power factor lagging from a 230-V
source. A capacitor bank is connected across the motor terminals to make the combined
power factor 0.95 lagging.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7a0d4915-7a7e-40a4-9b8d-cbb54bdfde13%2F3af23da9-9b22-43df-9672-576217c0d51d%2F8vrb8jp_processed.jpeg&w=3840&q=75)
Transcribed Image Text:ine
her
s of
a. Find the current drawn by the motor.
b. Find the real and reactive power absorbed by the motor.
3.18 A three-phase, 50-kVA, 600-V, 60-Hz generator operates at rated terminal volt-
age and supplies a line current of 48 A per phase at a 0.8 lagging power factor to a
balanced three-phase load. Determine the real, reactive, and apparent power.
3.19 A 345-kV, three-phase transmission line delivers 500 MVA, 0.866 power factor
lagging, to a three-phase load connected to its receiving-end terminals. Assume that
the load is A connected and the voltage at the receiving end is 345 kV.
30⁰
a. Find the complex load impedance per phase.
b. Calculate the line and phase currents.
c. Find the real and reactive power per phase.
d. Find the total real and reactive power.
3.20 Repeat Problem 3.19 assuming that the load is wye connected.
3.21 A three-phase load draws 120 kW at a power factor of 0.85 lagging from a
440-V bus. In parallel with this load is a three-phase capacitor bank that is rated 50
kVAR. Find (a) the total line current and (b) the resultant power factor.
3.22 A three-phase motor draws 40 kVA at 0.65 power factor lagging from a 230-V
source. A capacitor bank is connected across the motor terminals to make the combined
power factor 0.95 lagging.
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