.Buildings.Electrical.Transmission.Functions.selectCable_med

Information

This function selects the default cable for a medium voltage transmission line.

The function takes as inputs the nominal voltage V_nominal and the nominal power P_nominal. It computes the maximum current current that can flow through the cable as

I_MAX = S_F P_nominal / V_nominal,

where S_F is the safety factor. By default the safety factor is equal to 1.2.

Using I_MAX, the function selects the smallest cable that has an ampacity higher than I_MAX. The cables are selected from Buildings.Electrical.Transmission.MediumVoltageCables.

Interface

function selectCable_med
  input Modelica.Units.SI.Power P_nominal = 0 "Rated power";
  input Modelica.Units.SI.Voltage V_nominal = 0 "Rated voltage";
  output Buildings.Electrical.Transmission.MediumVoltageCables.Generic cable "Cable";
end selectCable_med;

Revisions

• Sept 19, 2014, by Marco Bonvini:
  Added warning instead of print.
• June 3, 2014, by Marco Bonvini:
  Added User's guide.