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In the following there is an example of an admittance matrix.

https://en.m.wikipedia.org/wiki/Nodal_admittance_matrix

If y13 had a switch and it is open, what happens to the admittance matrix?

Thanks

Tims
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1 Answers1

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I'm not a power distribution engineer, but reading the article in the link you provided I see

It is important to note that \$y_{ki}\$ is non-zero only where a physical connection exists between two buses.

Which I interpret to imply breaking the 1-3 connection by means of a switch would mean $$y_{13} = y_{31} = 0$$

Peter Jennings
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  • ee.se uses `\$\$` instead of just `$$` for inline math, to avoid breaking posts that talk about the dollar cost of something. – The Photon May 06 '22 at 16:05