Thevenin reduction of network for fault analysis trouble.

[Bringitondown]

Homework Statement

Reduction from top network to bottom network in the screen shot. I can not find the steps that have been taken to do this.
Fault impedance = Zfa = Zfb = Zfc = j0.5

Homework Equations

The Attempt at a Solution

in hand written screenshot, sorry for the mess, just to show it has been attempted.

 

[gneill]

Looks like a Δ-Y transformation to me.

 

[Bringitondown]

I have just realized i have not converted from cart to pol when calculating equivalent impedance.
doh, i think this may have been the problem

 

[Bringitondown]

Looks like a Δ-Y transformation to me.

Yes, thanks will try again with this in mind.
thank you

 

[Bringitondown]

tra

Looks like a Δ-Y transformation to me.

Transformation right enough, thanks for this.

 

[gneill]

Happy to help