Problema resuelto de transformadores

I PARCIAL MÁQUINAS ELÉCTRICAS I PROF. LUIS SUAREZ PROBLEMA 1:

As  5cm

2 4

g 2  1mm m
2

As  5  10 Bg2  1T a As

Lm  10cm

a  0.022 m Ag2  a  g 2





2 4 2

Ag2  5.457  10 2  Bg2  Ag2

m

2  5.457  10

4Wb

Bm 

2 As

Bm  1.091 T

Hm 

 1000 Bm  A  1.5T  B   m m 
1  0   1  2

3 A Hm  2.671  10 mHm 3  Lm  Lm  g 2  2  I2  200





g2  0  Ag2

  5.457  10

4

Wb

I2  9.308 A 200  I2  Hm Lm50

I1 

I1  31.891 A

I PARCIAL MÁQUINAS ELÉCTRICAS I PROF. LUIS SUAREZ PROBLEMA 3: Diagrama Fasorial

a1  16.25V b 1 1000V c1  984.0531V

Eef  984.0531V V1  1000V

 a 2  b 2  c 2  1 1 1    acos  2  b  c  1 1  
  0.1804deg

Teorema de los Cosenos

  75.964deg        75.7836 deg Pn  1936.7212W g c  Pn Eef
2

g c  0.002 S Ic  Eef g c Ic  1.9681 A I1  Ic Imag  tan   Ic Imag  7.7685 A bm  Imag Eef

cos 

I1  8.0139 A Pent  V1 I1 cos  Pent  1943.6326 W

bm  0.0079 S Qm  Eef  Imag Qm  7644.6279 var

PRd  Pent  Pn PRd  6.9114 W Rd  PRd I1
2

Qent V1 I1 sin   Qent  7774.6708 var QXl  Qent  Qm QXl  130.043 var QXl Imag
2

Rd  0.1076  Xl 

Xl  2.1548 