I want to adapt the example present in ~EMTPWorks\Examples\ApplicationCases\Transformer_data\TestExample\TransformerModel in the case of a magnetizing branch connected in the delta connection of the transformer (tertiary side).
The "L nonlinear" block is used to convert the I-V curve to I-phi curve.
1) However, I do not know if I have to use the phase-to-ground voltage for the base (as in the example) or the phase-to-phase voltage.
2) Also in the example the power base in divided by 3 (10 MVA used in the L nonlinear block but the no-load test is made for 30MVA). This division is also necessary for the delta connection?
3) The current of the no-load test given in % are given by I = P/V (single phase system) or I = P/sqrt(3)*U (three-phase system)
Non-Linear Inductance on Delta Winding Connection
Dear Sir or Madam,
Please, see my insights below.
The "L nonlinear" block is used to convert the I-V curve to I-phi curve.