A single phase transformer is given: SN= = 100 kVA, V₁10 kV t = 25. The short circuit parameters reported to primary are: R = 2502, X = 40 2 SC SC Neglecting the no load parameters of the machine, evaluate: a) the no-load secondary voltage V 20 V 20 b) The voltage at the load terminals, when the load absorbs a current equal to 80% of the secondary rated current, with power factor cosp = 0.9 V₂ Colla c) The power absorbed during the short circuit test P P = SC W SC V L

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A single phase transformer is given:
SN=
S, 100 kVA, V = 10 kV, t = 25.
=
1N
The short circuit parameters reported to primary are:
R = 25 02,
X = 40 22.
SC
SC
Neglecting the no load parameters of the machine, evaluate:
a) the no-load secondary voltage V
20
V
b) The voltage at the load terminals, when the load absorbs a current equal to
80% of the secondary rated current, with power factor cosp = 0.9
V
c) The power absorbed during the short circuit test P
P =
SC
SC
d) The fault current on primary side in case of fault at the secondary terminals
k
20
SO
L
W
4
Transcribed Image Text:A single phase transformer is given: SN= S, 100 kVA, V = 10 kV, t = 25. = 1N The short circuit parameters reported to primary are: R = 25 02, X = 40 22. SC SC Neglecting the no load parameters of the machine, evaluate: a) the no-load secondary voltage V 20 V b) The voltage at the load terminals, when the load absorbs a current equal to 80% of the secondary rated current, with power factor cosp = 0.9 V c) The power absorbed during the short circuit test P P = SC SC d) The fault current on primary side in case of fault at the secondary terminals k 20 SO L W 4
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