Question No. 11 A single-phase 100 kVA, 1000 V/100 V, 50 Hz transformer has a voltage drop of 5% across its series impedance at full load. Of this, 3% is due to resistance. The percentage regulation of the transformer at full load with 0.8 lagging power factor is 4.8 6.8 8.8 10.8

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 3.33MCQ: The direct electrical connection of the windings allows transient over voltages to pass through the...
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Question No. 11
A single-phase 100 kVA, 1000 V/100 V, 50 Hz
transformer has a voltage drop of 5% across its
series impedance at full load. Of this, 3% is due to
resistance. The percentage regulation of the
transformer at full load with 0.8 lagging power
factor is
O
O
4.8
6.8
8.8
10.8
Transcribed Image Text:Question No. 11 A single-phase 100 kVA, 1000 V/100 V, 50 Hz transformer has a voltage drop of 5% across its series impedance at full load. Of this, 3% is due to resistance. The percentage regulation of the transformer at full load with 0.8 lagging power factor is O O 4.8 6.8 8.8 10.8
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