Calculating distributed parameters based on given Pi model

[Bababarghi]

Homework Statement

In a course I am studying, I have been asked to calculate the distributed parameters of a line whose Pi model has been provided. I simply quote the question here for clarity of my question:

Homework Equations

$$C = \frac{{2\pi \varepsilon }}{{\ln \frac{b}{a}}}$$
$$R = \frac{1}{{2\pi {\sigma}{\delta _s}}}\left( {\frac{1}{a} + \frac{1}{b}} \right)$$
$$L = \frac{\mu }{{2\pi }}\ln \frac{b}{a}$$
$$\tan \delta = \frac{G}{{\omega C}}$$

The Attempt at a Solution

I was hoping to use above equation to solve the problem but then I realized the conductor material i.e. its conductivity, permeability, etc. is missing. Therefore all above equations would be of no use in this case.

Now the question that I can not get my head around it, is what approach will get me from lump Pi model parameters to line distributed parameters? Note that I am looking for guidelines, not the actual solution.

Thanks

 

[NascentOxygen]

I have been asked to calculate the distributed parameters of a line whose Pi model has been provided.

Have you tried a google search?

 

[donpacino]

http://www.mathworks.com/help/physmod/sps/powersys/ref/power_lineparam.html
try this. You will have to use this information to work backwords, but it might get you started