1. A 100-MVA, 33kV, three phase generator has a reactance of 15%. The generator is connected to the motors through a transmission line and transformers as shown in the figure below. Motors have inputs of 40MVA, 30MVA, and 20MVA at 30kV with 20% reactance each. Draw the per-unit circuit diagram. Use Sbase = 120MVA M) 40 MVA. X"0.20 pu 60 A (M,) 30 MVA, K 0.20 pu YA 110 MVA 110/32 kV 110MVA 100 MVA. 33 kV M) 20 MVA, X-0.20 pu A-Y 0.15 pu 32/110 kV X,0.08 pu X,-0.08 pu

1. A 100-MVA, 33kV, three phase generator has a reactance of 15%. The generator is connected to the motors through a transmission line and transformers as shown in the figure below. Motors have inputs of 40MVA, 30MVA, and 20MVA at 30kV with 20% reactance each. Draw the per-unit circuit diagram. Use Sbase = 120MVA M) 40 MVA. X"0.20 pu 60 A (M,) 30 MVA, K 0.20 pu YA 110 MVA 110/32 kV 110MVA 100 MVA. 33 kV M) 20 MVA, X-0.20 pu A-Y 0.15 pu 32/110 kV X,0.08 pu X,-0.08 pu

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 3.56P: Three single-phase two-winding transformers, each rated 3kVA,220/110volts,60Hz, with a 0.10 per-unit...

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