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User7251
Some VFD manufacturers provide rated current and saturation current as rms values in the datasheets of their line reactors. VFD input current is, however, not a clean sinusoid, but rather a series of current pulses (4 per cycle with 3-phase input, 2 per cycle with 1-phase input) with peaks that can range in the 2-4x the rms value. If the current peak exceeds the peak value of the manufacturer given rms saturation current, what happens? (For example, say the current peak reaches 105A but the saturation current is 60 Arms). Does this result in a clearly visible change of the current/voltage waveforms when viewing them on an oscilloscope? And assuming that a 3-phase reactor is used (3 coils), but only a 1-phase input (2-outer coils are used), is there any change in rated saturation current (i.e. can the reactor handle more current before going into saturation), or does this not matter?