BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY

# .BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY

IEEE 4 node test feeder model with balanced load and D - Y connection (step down)

## Information

IEEE 4 nodes validation test case with the following characteristics

- balanced load,
  - power consumption on each phase P1,2,3 = 1800 kW
  - power factor on each phase cosφ1,2,3 = 0.9
- voltage step-down transformer (VPri=12.47 kV, VSec = 4.16kV),
- D-Y transformer

## Revisions

- April 7, 2021, by Michael Wetter:
  Set start values `loadRL(load1(v(start = {1500, 1200})))` as the model seems to have more than one solution.
  This is for #2432.
- October 9, 2014, by Marco Bonvini:
  Added documentation.
- June 17, 2014, by Marco Bonvini:
  Moved to Examples IEEE package.
- June 6, 2014, by Marco Bonvini:
  First implementation.

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