а) Two three-phase transformers have the following per unit secondary equivalent circuit parameters per phase, where the values have been derived from your student number using the same method as in Question 1: Transformer 1: 200 kVA Transformer 2: 500 kVA Ri %3D0.02X р. u. X, 3D 0.09Х р. u. R2 = 0.03Y p. u. %3D X2 = 0.1Y p. u. %3D For example: If your student number is c1700123, then R = 0.022 p. u. and R2 = 0.033 p. u. %3D %3D Calculate how the transformers share a load of 300 kVA at a power factor of 0.8X lagging when connected in parallel. State any assumptions which you make.

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Two three-phase transformers have the following per unit secondary
а)
equivalent circuit parameters per phase, where the values have been derived
from your student number using the same method as in Question 1:
Transformer 1: 200 kVA
Transformer 2: 500 kVA
Ri %3D 0.02X р. u.
X1 %3D 0.09X р. u.
R2
0.03Y р. u.
II
%3D
X2 %3D 0.1Y р. u.
For example:
If your student number is c1700123, then R1 = 0.022 p. u. and R2
0.033 р. u.
%3D
Calculate how the transformers share a load of 300 kVA at a power factor of
0.8X lagging when connected in parallel. State any assumptions which you
make.
Transcribed Image Text:Two three-phase transformers have the following per unit secondary а) equivalent circuit parameters per phase, where the values have been derived from your student number using the same method as in Question 1: Transformer 1: 200 kVA Transformer 2: 500 kVA Ri %3D 0.02X р. u. X1 %3D 0.09X р. u. R2 0.03Y р. u. II %3D X2 %3D 0.1Y р. u. For example: If your student number is c1700123, then R1 = 0.022 p. u. and R2 0.033 р. u. %3D Calculate how the transformers share a load of 300 kVA at a power factor of 0.8X lagging when connected in parallel. State any assumptions which you make.
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