esc Klab 1 2 ps lock A ift D Question 3. A 12-kVA, 480/120V, step-down ideal transformer is operating at its full load with a 70.7% pf lagging. Determine (a) the secondary winding current magnitude and angle, (b) the load impedance seen from the primary (480V) side. Question 4. The following data were taken for a 46-kVA, 230/2300V, 60-Hz transformer: Voltage (V) Current (A) Short-circuit test 160 20 Power (W) 1150 Determine (a) the equivalent winding resistance ReH of the transformer at the high-voltage side, and (b) the copper loss at 50% load. ne A 1. end G numk 5 の PO FN 2 0
esc Klab 1 2 ps lock A ift D Question 3. A 12-kVA, 480/120V, step-down ideal transformer is operating at its full load with a 70.7% pf lagging. Determine (a) the secondary winding current magnitude and angle, (b) the load impedance seen from the primary (480V) side. Question 4. The following data were taken for a 46-kVA, 230/2300V, 60-Hz transformer: Voltage (V) Current (A) Short-circuit test 160 20 Power (W) 1150 Determine (a) the equivalent winding resistance ReH of the transformer at the high-voltage side, and (b) the copper loss at 50% load. ne A 1. end G numk 5 の PO FN 2 0
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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Help with question 4
Transcribed Image Text:esc
Klab
1
2
ps lock
A
ift
D
Question 3. A 12-kVA, 480/120V, step-down ideal transformer is operating at its full load with a
70.7% pf lagging. Determine (a) the secondary winding current magnitude and angle, (b) the load
impedance seen from the primary (480V) side.
Question 4. The following data were taken for a 46-kVA, 230/2300V, 60-Hz transformer:
Voltage (V)
Current (A)
Short-circuit test
160
20
Power (W)
1150
Determine (a) the equivalent winding resistance ReH of the transformer at the high-voltage side,
and (b) the copper loss at 50% load.
ne
A
1.
end
G
numk
5
の
PO
FN
2
0
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