Different signals such as sinewaveform, step waveform and exponential waveform are available. Its frequency and phase can be adjusted precisely through the front panel.
A approximately sinewaveform air-gap magnetic field density can be gained based on the analysis of the whole electromagnetic field. The results are helpful to optimization design and control.
Such problems as the attenuation of DC elements and Sinewaveform, voltage sag and frequency deviation should be taken into account in order to analyze the transient process in the power system.