A 5KVA, 240/120 V single phase transformer has the following parameters: R1 = 0.06 Q R2 = 0.015 Q X1 = 0.18 Q X2 = 0.045 2 Rc =2000 Q Xm = 400 0 Transformer secondary winding feeds an inductive load of 5KVA power factor 0.9 at 120V rated voltage. Way using the L equivalent circuit given, find the primary voltage, primary current and apparent power factor of the transformer. What is the efficiency of the transformer? R,+R2 X,+X2 mm V1= V l1 = A Im V1 Ret V2 V2 cose = Xm1 n = % a

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A 5KVA, 240/120 V single phase transformer has the following parameters:
R1 = 0.06 Q
R2 = 0.015 Q
X1 = 0.18 Q
X2 = 0.045 2
Rc =2000 Q
Xm = 400 0
Transformer secondary winding feeds an inductive load of 5KVA power factor
0.9 at 120V rated voltage. Way using the L equivalent circuit given, find the
primary voltage, primary current and apparent power factor of the
transformer. What is the efficiency of the transformer?
R,+R2
X,+X2
mm
V1=
V
l1 =
A
Im
V1 Ro1
V2
V2
cose =
Xm1
n =
%
uuww
Transcribed Image Text:A 5KVA, 240/120 V single phase transformer has the following parameters: R1 = 0.06 Q R2 = 0.015 Q X1 = 0.18 Q X2 = 0.045 2 Rc =2000 Q Xm = 400 0 Transformer secondary winding feeds an inductive load of 5KVA power factor 0.9 at 120V rated voltage. Way using the L equivalent circuit given, find the primary voltage, primary current and apparent power factor of the transformer. What is the efficiency of the transformer? R,+R2 X,+X2 mm V1= V l1 = A Im V1 Ro1 V2 V2 cose = Xm1 n = % uuww
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