What about the load side? How come no one is considering what is going on with the load side. Over voltage faults can occur from motor regeneration. You might want to check what the decel. time parameter is of the VFD's. Just another point of view.
Hi there,
Why don't you try using a ferrite core from an old television. You can't use a standard iron core to make your transformer at those frequencies.(ie hysteresis)
I built a PWM DC to DC power supply back in college using a ferrite core out of a TV, it worked very well...
Hello there,
I'm on the electrical end of things and one thing that I really need explained to me is pump runout condition. If a centrifugal pump is pumping water through it and the pump becomes dead headed, the pump will continue to run and the impeller will just cut through the water...