Three single-phase two-winding transformers, each rated 25MVA , 54 . 2 / 5 . 42 kV , are connected to form a three-phase Y-Δ bank with a balanced Y-connected resistive load of 0 .6 Ω per phase on the low-voltage side. By choosing a base of 75 MVA (three phase) and 94 kV (line-to-line) for the high-voltage side of the transformer bank, specify the base quantities for the low-voltage side. Determine the per-unit resistance of the load on the base for the low-voltage side. Then determine the load resistance R L in ohms referred to the high-voltage side and the per-unit value of this load resistance on the chosen base.
Three single-phase two-winding transformers, each rated 25MVA , 54 . 2 / 5 . 42 kV , are connected to form a three-phase Y-Δ bank with a balanced Y-connected resistive load of 0 .6 Ω per phase on the low-voltage side. By choosing a base of 75 MVA (three phase) and 94 kV (line-to-line) for the high-voltage side of the transformer bank, specify the base quantities for the low-voltage side. Determine the per-unit resistance of the load on the base for the low-voltage side. Then determine the load resistance R L in ohms referred to the high-voltage side and the per-unit value of this load resistance on the chosen base.
Three single-phase two-winding transformers, each rated
25MVA
,
54
.
2
/
5
.
42
kV
,
are connected to form a three-phase
Y-Δ
bank with a balanced Y-connected resistive load of
0
.6
Ω
per phase on the low-voltage side. By choosing a base of 75 MVA (three phase) and 94 kV (line-to-line) for the high-voltage side of the transformer bank, specify the base quantities for the low-voltage side. Determine the per-unit resistance of the load on the base for the low-voltage side. Then determine the load resistance
R
L
in ohms referred to the high-voltage side and the per-unit value of this load resistance on the chosen base.
Instruction's:
Q2: Required Handwritten Answer with explanation , Dont send Ai Answers , Straight Forward will be Reported to team & a detailed review will be done against that tutor for wasting the students time.
Instruction's:
Q3 01: Required Handwritten Answer with explanation , Dont send Ai Answers , Straight Forward will be Reported to team & a detailed review will be done against that tutor for wasting the students time.
Don't use ai to answer I will report you answer
Chapter 3 Solutions
Power System Analysis and Design (MindTap Course List)
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.
How does a Transformer work - Working Principle electrical engineering; Author: The Engineering Mindset;https://www.youtube.com/watch?v=UchitHGF4n8;License: Standard Youtube License