PRACTICAL MATLAB® FOR ENGINEERS PRACTICAL MATLAB

Alternating Current Analysis 317

P.3.26. Write a program that returns the line currents and the voltage drop across each

impedance of the 3 Φ system shown in Figure 3.99, where

ZA = 2 + j 3 (
)

ZB = 4 − j6 (
)

ZC = 12 + j8 (
)

ZB

ZA

ZC

I 2

I 1

I 3

R 3 = 1 Ω

R 2 = 2 Ω

R 1 = 3 Ω

E 3 = 210 0° V

+

+

+

E 2 = 210 − 120 ° V

E 1 = 210 120° V

FIGURE 3.99

Unbalanced 3 Φ network of P.3.26.