Yamaha 2000iS and softstart with AC?
I have a older Yamaha 2000iS (not sv2) and a Magnum 3012 hybrid inverter but can’t run an AC due to the poor surge capability of the generator (it drops voltage too fast for inverter to ‘support’ it s...
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The answer to my initial post is clear, I need a more robust (and preferably larger) generator.
I errantly expected that my hybrid inverter (on board, not to be confused with the inverter generator) would just make up the difference between what my AC required and what my underpowered generator would provide. The reality is that the older Yamaha 2K generator can not deal with surge currents (or in-rush, or how ever you want to define motor start up required current), it drops voltage as a response too quickly to play well with the hybrid inverter. Consequently an oscillation is set up between the sources instead of complimenting each other. I momentarily witnessed 400-500A being drawn from my battery bank! Not good for anything in that path including the AC!!!
Prior to starting this thread I’d already discussed the situation with Magnum tech support who suggested (as did otrfun) lowering the VAC dropout to help eliminate the oscillations. Not a solution I’m willing to attempt because of the large current stress that would put on the AC.
Bottom line, my generator is too puny. If it would act like an ideal voltage source just limited to 13A, or 10A or whatever, my hybrid inverter could make up the difference and I’d be happy. The Magnum is very capable of starting and running my AC on it’s own I just don’t want to be drawing 200A from my battery bank for hours instead of minutes. My hopes at a cheap/quick solution (softstart) we’re naive, I just need a bigger generator to run AC. I’m sure that a 2200 Honda would marginally work, but if I’m spending money anyway I’m not going to cheap out on the right solution (like my initial question was pondering…
I errantly expected that my hybrid inverter (on board, not to be confused with the inverter generator) would just make up the difference between what my AC required and what my underpowered generator would provide. The reality is that the older Yamaha 2K generator can not deal with surge currents (or in-rush, or how ever you want to define motor start up required current), it drops voltage as a response too quickly to play well with the hybrid inverter. Consequently an oscillation is set up between the sources instead of complimenting each other. I momentarily witnessed 400-500A being drawn from my battery bank! Not good for anything in that path including the AC!!!
Prior to starting this thread I’d already discussed the situation with Magnum tech support who suggested (as did otrfun) lowering the VAC dropout to help eliminate the oscillations. Not a solution I’m willing to attempt because of the large current stress that would put on the AC.
Bottom line, my generator is too puny. If it would act like an ideal voltage source just limited to 13A, or 10A or whatever, my hybrid inverter could make up the difference and I’d be happy. The Magnum is very capable of starting and running my AC on it’s own I just don’t want to be drawing 200A from my battery bank for hours instead of minutes. My hopes at a cheap/quick solution (softstart) we’re naive, I just need a bigger generator to run AC. I’m sure that a 2200 Honda would marginally work, but if I’m spending money anyway I’m not going to cheap out on the right solution (like my initial question was pondering…
