minimal electric circuit fails

[Wendelin Hoffmann-Walbeck]

Hi,
I am trying to simulate models using electrical parts of the Modelica-lib but 
openmodelica fails to flatten the models.

Above a minimal example.
Any suggestions?
Is there a list which parts of the Modelica-lib should actually be supported by 
openmodelica?

Cheers,
Wendelin


package minimal_electric_circuit 
  model elcectic_minimal
    Modelica.Electrical.Analog.Basic.Ground Ground1; 
    Modelica.Electrical.Analog.Basic.Resistor R_Load(R=100); 
    Modelica.Electrical.Analog.Sources.SineVoltage V_Grid(
      V=400,
      freqHz=50); 
  equation 
    connect(Ground1.p, V_Grid.n);
    connect(V_Grid.n, R_Load.n);
    connect(R_Load.p, V_Grid.p);
   end elcectic_minimal;
end minimal_electric_circuit;