Body
WernerI used a cheap and dirty 125 watt inverter to run my 3 hp 480 volt WEG three phases. It was a twenty year old Canadian made unit that put out crappy square waves, perhaps, but it did not have any of the shut down safety gear on it making it baby safe for the home.It would work its little heart out until it would explode and burn trying.That is the kind of inverter you want, a no frills expendable tool that takes 12 volts or 24 volts and puts out a sort of ac signal that an ac motor might recognize, and not waste any power doing that. If it changes frequency from 50 or 60 hz, that is a bonus.I have even had success with those things that plug into the cigar socket in the car.You must start your RV on grid power and switch the source over when up to full speed with a double pole , double throw switch, so you are not fumbling around like the guys in the third world flywheel videos, with getting plugs into sockets before you lose sine speed!
Your fancy big inverter is overkill for what you are doing. My RV runs on 200ma with no load, with no grease.The greased version runs on 400maI use the greased version because dust control is an issue where I experiment, or at least was.Doug is right! Get your RV going and play with it, to see what you can do with it. Variacs( auto transformers) are very useful tools to use with it, as are toroid transformers, and lots, and lots, of 1000 volt bridge rectifiers.Cheers Warren
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On Sat, Mar 10, 2018 at 6:15 AM, werner held [email protected] [EVGRAY]<[email protected]> wrote:
KONE ,i HAVE A 3000W INVERTER THAT IS SUPPLIED BY ABOUT 1000W SOLAR PANELS IT POWERS MY HOME A LOT. That is what I use to drive the RV & experiment with .I have a 5hp 3phase motor sitting on tp of my battery bank w/is agm's 2ftwide by 4ft long 04in tall most are useless but!I'D like to charge the battery's w/RV a little bit!!
On Saturday, March 10, 2018 2:46 AM, "[email protected] [EVGRAY]" <[email protected]> wrote:
Hi Werner7W is pretty good, especially with 120VAC input.....7W in DC into invertor and invertor powers RV even better.....to be "advanced" you need to be in control of pulse width, frequency and also voltage into the motor.....for sure when you hook up the series transformer you will see a drop in draw when fairly heavy load is applied to the transformer output, then you need to juggle the cap sizes around too....there are lots and lots of rotovertor circuit experiments to try out.ciaoKone
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