The plant capacity of a 3-phase generating station consists of two 8 MVA generators of reactance 14:5% each and one 4 MVA generator of reactance 9:5%. These are connected to a common bus-bar from which loads are taken through a number of 3 MVA step-up transformers each having 4% reactance. Determine the MVA rating of the circuit breakers on (i) L.V. side and (ii) H.V. side. Reactances given are based on the MVA of each equipment. [() 15:24 MVA (ii) 50-25 MVA]

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 3.37P: Three single-phase two-winding transformers, each rated 25MVA,54.2/5.42kV, are connected to form a...
icon
Related questions
Question
3. The plant capacity of a 3-phase generating station consists of two 8 MVA generators of reactance 14:5%
each and one 4 MVA generator of reactance 9:5%. These are connected to a common bus-bar from
which loads are taken through a number of 3 MVA step-up transformers each having 4% reactance.
Determine the MVA rating of the circuit breakers on (i) L.V. side and (ii) H.V. side. Reactances given
are based on the MVA of each equipment.
[() 15-24 MVA (ii) 50-25 MVA]
Transcribed Image Text:3. The plant capacity of a 3-phase generating station consists of two 8 MVA generators of reactance 14:5% each and one 4 MVA generator of reactance 9:5%. These are connected to a common bus-bar from which loads are taken through a number of 3 MVA step-up transformers each having 4% reactance. Determine the MVA rating of the circuit breakers on (i) L.V. side and (ii) H.V. side. Reactances given are based on the MVA of each equipment. [() 15-24 MVA (ii) 50-25 MVA]
Expert Solution
steps

Step by step

Solved in 4 steps with 8 images

Blurred answer
Knowledge Booster
Three Phase Transformer
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Power System Analysis and Design (MindTap Course …
Power System Analysis and Design (MindTap Course …
Electrical Engineering
ISBN:
9781305632134
Author:
J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:
Cengage Learning