I'm planning on running my woodworking shop off grid. My biggest 3 phase load is 6HP. I could run this with an 18kva generator to cope with the startup current but I'm then only running the generator at part load which, I gather, isn't necessary a good idea for generator longevity.
My thoughts were to use a smaller generator (say 6kva) for motor running and use 3x multiplus as a power assist for starting.
Am I right in thinking I need 12kva power assist? As the multiplus can withstand short term overloads, does this equate to 3x 6kva (or nearest higher equivalent) or is it 3x 2kva (to give 6kva total)?
The rest of the shop will run off solar/wind.
Many thanks, Nick.