RUMORED BUZZ ON VFD CONTROL PANEL

Let us think the push is operating on the 480V electric power program. The 480V ranking is “rms” or root-suggest-squared. The peaks with a 480V procedure are 679V. As you may see, the VFD dc bus contains a dc voltage using an AC ripple. The voltage operates in between somewhere around 580V and 680V.  Because the motors revolutions for each mom