9.35 Consider a simple circuit configuration shown in Figure 9.23 to calculate the fault

currents 11, 12, and I with the switch closed.

FIGURE 9.23

For Problem 9.35

(a) Compute E₁ and E₂ prior to the fault based on the prefault voltage V=1/0°, and

then, with the switch closed, determine I₁, I2, and I.

(b) Start by ignoring prefault currents, with E₁ E₂ = 1/0°. Then superimpose the

load currents, which are the prefault currents, I₁ = -1₂ = 1/0°. Compare the results

with those of part (a).

E₁

j0.1

V=1/0°

1₂

j0.15

E₂

BAUOR