.Spot.ACabc.Transformers.TrafoMag

Information

Stray-impedance and resistance, with non-ideal magnetic coupling, i.e. non-zero magnetisation current and eddy current losses.
Delta topology: impedance is defined as winding-impedance (see info package Transformers).

SI-input: values for stray and coupling impedances are winding dependent.

  r[k]  = R[k]
  x[k]  = omega_nom*L[k]
  x0[k] = omega_nom*L0[k]
  redc  = Redc
  xm    = omega_nom*Lm
  xm0   = omega_nom*Lm0

pu-input: values for stray and coupling impedances are winding-reduced to primary side.

  r[k]  = R[k]/R_nom[k]
  x[k]  = omega_nom*L[k]/R_nom[k]
  x0[k] = omega_nom*L0[k]/R_nom[k]
  redc  = Redc/sqrt(R_nom[1]*R_nom[2])
  xm    = omega_nom*Lm/sqrt(R_nom[1]*R_nom[2])
  xm0   = omega_nom*Lm0/sqrt(R_nom[1]*R_nom[2])

with

  R_nom[k] = V_nom[k]^2/S_nom,  k = 1(primary), 2(secondary)