A three-bus network is shown in the figure below indicating

Home » Power Systems » Power systems miscellaneous » Question

A three-bus network is shown in the figure below indicating the p.u. impedances of each element.

The Bus admittance matrix, Y-bus, of the network is

1. j 0.3     -0.2     0
  -0.2     0.12     0.08
  0     0.08     0.02
2. j -15     5     0
  5     7.5     -12.5
  0     -12.5     2.5
3. j 0.1     0.2     0
  0.2     0.12     -0.08
  0     -0.08     0.10
4. j -10     5     0
  5     7.5     12.5
  0     12.5     -10

Correct Option: B

Y₁₁ =	1	+	1	= - j15
	j0.1		j0.2