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.
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