Transmission parameters Power World

Hi,

New to this forum, so first of all I apoligize if I missed any rules regarding how to ask questions or name the question. Please let me know if there is anything I could've improved.

 

Now to the question. I am doing a PowerWorld Design project where I am modelling a connection of a windpark. I have some options regarding transmissions lines aswell as some costs attached to the different types. What I am struggling with is putting in the right parameters for the transmission lines into powerworld. This is the table of t-lines I can choose from:

 

	r_a resistance (Ohms per Conductor per Mile)	x_a Inductive Reactance (ohms per conductor per mile at 1 ft spacing all currents)	x'_a Shunt capactiance reactance (megaohms per conductor per mile at 1 ft spacing)
	25°C (77°F) Small currents	50°C (122°F) Current Approx. 75% Capacity
Rook	0,1480	0,1688	0,4140	0,0950
Crow	0,1320	0,1482	0,4070	0,0932
Condor	0,1190	0,1378	0,4010	0,0917
Cardinal	0,0982	0,1128	0,3900	0,0890

 

PowerWorld lets me put in the following parameters:

Series Reistance (R)

Series Reactance (X)

Shunt Charging (B)

Shunt Conductance (G)

 

My first take was to only use r_s for 75% as series resistance since I am designing the modell to hold for "worst-case scenario", that is when currents are high. For the reactance I am more confused, do I need to add them to make the Pi-equivalent?

Basiclly my question is: How do I translate the parameters given in the table to the parameters to use as input in PowerWorld?

 

Thanks in advance,

Alex