Typical X/R ratio 1

[lz5pl]

I try to simulate a small industrial network using ELPEK software. For the source I have value of short circuit current. But for defining a feeder internal R and X are required and I haven't r/x ratio. I am looking for advice regarding typical values. I know they will vary, but I should start from somewhere.
This problem appears every time I have to simulate some network. Usually the only information available from the customer is short circuit power or current.

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It may be like this in theory and practice, but in real life it is completely different.
The favourite sentence of my army sergeant

 

[slavag]

Hi Lz5pl.
It's very variable as you saied.
I have some data, maybe it's help.
Best Regards.
Slava

 

[lz5pl]

Thank you Slava. I am on 6 kV side, so I will start with x/r=2 , it should be sufficient for the first approximation.
Source is 110/6,3 kV, 125 MVA power transformer, supplied through very short 110 kV line from a big system substation 400/110 kV.

------------------------
It may be like this in theory and practice, but in real life it is completely different.
The favourite sentence of my army sergeant

 

[slavag]

Hi.
For this trafo see following data:

 

[slavag]

Sorry.
Good Luck.
Slava

 

[waross]

Thanks for the tables Slava.
Respectfully