1A common technique to speed up the rotor electrical transient is running TD simulations with locked rotor and the cage resistivity defined as:
\[\rho_{cage} = \frac{\rho^*_{cage}}{s} \]
where \(\rho^*_{cage}\) is the material resistivity defined at the simulation’s temperature. The rotor electrical transient can be dramatically reduced by imposing the higher resistivity. The resistance increases significantly, while the inductance remains the same with the consequence that the time constant decreases multiplied by s. This method does not consider correctly the effect of the harmonics, so it is useful only to compute the mean torque and the main harmonic of the currents and flux linkages.