The Time to Frequency Losses () study is used to compute the loss of a Loss Calculation subnode. This study is typically added after a Time Dependent study. Note that the Loss Calculation subnode needs to be added before the Time Dependent study is computed. The Time to Frequency Losses study performs a forward FFT from the time domain (input) to the frequency domain that is used to compute the losses (output) based on empirical formulas or the time integral of resistive heating. As the default solver it adds an FFT solver, which takes the input data from Te−T to Te, where Te is the end time and T is the electrical period (1/f). The loss is computed by summing the loss contributions from different harmonic frequencies. The Settings window for the Time to Frequency Losses node () has the following sections:

From the Input study list, choose the study from which the FFT solver takes its input data. You can also choose Current to take it from the same study as the one that includes the Time to Frequency Losses study step. By default, the number of harmonics participating the loss contribution is set to 6.

The contents of this section is similar to other Values of Dependent Variables sections, but it does not include any settings for the initial values of variables solved for.