13. The figure below shows part of a power system consisting of a generator, two transformers and a transmission line. +0+ Transmission line, 150MVA 100km 120MVA 120MW 11kV (80+j60)MVA z =(0.06+j0.6)N/km 220/11kV X=0.02pu 220/66KV X=0.02pu X= 0.02pu (a) Calculate all the impedances in per-unit at a common base of 150 MVA. (b) Calculate the voltage at the load if the voltage at the generator bus is 11 kV.
13. The figure below shows part of a power system consisting of a generator, two transformers and a transmission line. +0+ Transmission line, 150MVA 100km 120MVA 120MW 11kV (80+j60)MVA z =(0.06+j0.6)N/km 220/11kV X=0.02pu 220/66KV X=0.02pu X= 0.02pu (a) Calculate all the impedances in per-unit at a common base of 150 MVA. (b) Calculate the voltage at the load if the voltage at the generator bus is 11 kV.
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 3.16MCQ: In developing per-unit circuits of systems such as the one shown in Figure 3.10. when moving across...
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