A 3-phase transformer, ratio 33/6.6-kV, A/Y, 1-MVA has a primary resistance of 8.5 ohms per phase and a secondary resistance of 0.09 ohm per phase. The percentage impedance is 9%. Calculate the secondary voltage with rated primary voltage and hence the regulation for full-load 0.75 p.f. lagging conditions
A 3-phase transformer, ratio 33/6.6-kV, A/Y, 1-MVA has a primary resistance of 8.5 ohms per phase and a secondary resistance of 0.09 ohm per phase. The percentage impedance is 9%. Calculate the secondary voltage with rated primary voltage and hence the regulation for full-load 0.75 p.f. lagging conditions
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 3.32MCQ
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A 3-phase transformer, ratio 33/6.6-kV, A/Y, 1-MVA has a primary resistance of 8.5 ohms per phase and a secondary resistance of 0.09 ohm per phase. The percentage impedance is 9%. Calculate the secondary voltage with rated primary voltage and hence the regulation for full-load 0.75 p.f. lagging conditions
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