11. Harmonic - Current Wave Form Ideal current wave but not attainable with a 6-pulse drive What the current wave form looks like with a 6-pulse drive Approaching a perfect current wave
12. Typical Drive Input Current Waveform I RMS = 75A Power = 12kW (x3) If current is sinusoidal Only 52A is required for the Same power. MM4 45kW Line Current Waveform (low impedance mains)
13. SED2 Typical Waveform I RMS = 53A Power = 12kW (x3) If current is sinusoidal Only 52A is required for the same power. SED2 11kW Line Current Waveform
14. DC Link Design Results 15HP Typical VFD Line Current Harmonics Spectrum 15 HP SED2 Line Current Harmonics Spectrum Meter deflection