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
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter3: Power Transformers
Section: Chapter Questions
Problem 3.31MCQ
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