15-kVA, 2400:240-V, 60-Hz, single-phase transformer has the following circuit parameters expressed in ohms RP = 2.50Ω RS = 0.025Ω XP = 7.00Ω XS = 0.070Ω RC = 32 kΩ Xm = 11.5 kΩ If the transformer is supplying a 10-kW, 0.8 p.f. lagging load at rated voltage. Assume that the 0.8 p.f. lagging load can be modeled by a passive impedance, but the transformer primary is connected to a 2400-V bus. Determine the resulting (actual) load current and voltage using approximate circuit of Figure 1. Answer should be 50.7/-37.86° A ...
15-kVA, 2400:240-V, 60-Hz, single-phase transformer has the following circuit parameters expressed in ohms RP = 2.50Ω RS = 0.025Ω XP = 7.00Ω XS = 0.070Ω RC = 32 kΩ Xm = 11.5 kΩ If the transformer is supplying a 10-kW, 0.8 p.f. lagging load at rated voltage. Assume that the 0.8 p.f. lagging load can be modeled by a passive impedance, but the transformer primary is connected to a 2400-V bus. Determine the resulting (actual) load current and voltage using approximate circuit of Figure 1. Answer should be 50.7/-37.86° A ...
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...
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Question
A 15-kVA, 2400:240-V, 60-Hz, single-phase transformer has
the following circuit parameters expressed in ohms
RP = 2.50Ω RS = 0.025Ω XP = 7.00Ω XS = 0.070Ω
RC = 32 kΩ Xm = 11.5 kΩ
If the transformer is supplying a 10-kW, 0.8 p.f. lagging load
at rated voltage.
Assume that the 0.8 p.f. lagging load can be modeled by a
passive impedance, but the transformer primary is connected to
a 2400-V bus. Determine the resulting (actual) load current and
voltage using approximate circuit of Figure 1.
Answer should be
50.7/-37.86° A
...
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Figure 1
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