Problem #6 A 140-KVA, 11,000:2,200-V, 60-Hz single-phase transformer has the following circuit parameters: Primary (HVS) R1 6.10 XI-31.20 Xm-124,000 The transformer is supplying at the 2200-V the rated load at a power factor of 0.7 lagging. Using the exact equivalent circuit, determine: (a) The voltage regulation of the transformer, (b) The efficiency of the transformer. Secondary (LVS) R2-0.30 X2=1.20

Problem #6 A 140-KVA, 11,000:2,200-V, 60-Hz single-phase transformer has the following circuit parameters: Primary (HVS) R1 6.10 XI-31.20 Xm-124,000 The transformer is supplying at the 2200-V the rated load at a power factor of 0.7 lagging. Using the exact equivalent circuit, determine: (a) The voltage regulation of the transformer, (b) The efficiency of the transformer. Secondary (LVS) R2-0.30 X2=1.20

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 3.15P: Rework Problem 3.14 if the transformer is delivering rated load at rated secondary voltage and at...

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