I wish ! 423 feet max.
Well.....Yes, 10000TLUS said "IGBT error", not sure what state it had been in.
5000US, when it checked line voltage before reconnecting, said something like relay error. Turning off VFD didn't fix, but power cycling PV input did. I think it fed OK with VFD on, but had the problem connecting.
Maybe yet another inductor on input of VFD would help? Slight improvement in PF and waveform but not ideal.
What we want is a front-end that follows AC voltage sine wave and synthesizes sine wave current to charge the capacitors. That does exist, but don't know of an add-on unit.
Hello, JohncfiiLots of potentially complex considerations. Hard to answer without looking at exact equipment specs. Can you post links to data sheets for the Franklin items? Save us the trouble of looking them up.
My first initial thought is that you will probably pay significantly more for unique items, such as a dedicated solar VFD, or unique “solar “ pump. It is probably significantly more cost effective to use a common 3-phase pump motor, driven by a common VFD. But efficiency will probably be a bit better with a DC driven VFD, because of one less conversion loss in the circuit.
At first consideration, I don’t think it would be at all foolish to pass on the special high-cost Franklin VFD box …. Calculate what lower conversion losses you would realize, and compare that saving to the added capital cost
All is complicated by the unique considerations of your install, such as the length and convenience of wire runs, and proximity of panels and inverter to where you plan to install the VFD.
What is this about a 3 HP motor not “requiring a surge” for starting? Can you post a link? Is that a feature of the motor, or the drive? As noted above, no 3-phase motor driven by a VFD needs a starting surge if the motor speed is ramped up over some seconds - easily set within the drive parameters.
4kW of panels can all potentially feed the single 100 amp charge controllers. Depends on VOC of the panels, how they are wired in series/parallel, and the charge controller specs. Again, can you post a link to the charge controller data sheet?
maybe try a AC line noise filter on that right at the ac input to the vfd.The first photo below is the output waveform from my Outback VFX3624 inverters when not powering a VFD.
The second photo is the waveform of input power being supplied to the VFD from the Outback inverters. While the audio frequency ringing imposed on the waveform has never caused any problems that I have detected, I’ve ordered a suitable reactor that might block the ringing from being fed back into my inverter and distribution system.