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iv always understood you had to flash it with it running.   the flashing being to kick it into producing power.  which it wont if the engine is not running 

applying a current to the rotor did not work :(     can a capacitor read good but actually be bad?  thats all i can think of now. flashing the windings does make the engine slow slightly, so it is obviously having an effect on the rotor.  just it wont build up charge. the voltage i am getting...

i might have just discovered something using a spare rotor i have.   i knew it had very little residual magnetism, tested using a compass.  i decided to arch a battery across each end.    it now has a much stronger magnetism,   i might try this on the rotor that is in the generator. im...

it was cheap from ebay.  (less than £300) i already have the pcb out as it was getting in the way.    even just a momentery blip on the battery created quite a spark.   the resistance across ALL winding's was 0.9 ohms.    this unit has a 20hp engine as is said to run for 11 hours on a tank of...

dc reduced the voltage i was getting from 1.5v to 0.7v.   how would i get the residual back if dc reduces it and ac would kill it?

i tried it in both directions.  but no difference.   im not sure i understand how the polarity would make a difference when its ac anyway.   im thinking maybe flash it with 12vac from a transformer.  that way i cant get the wrong polarity and it is ac like the windings will produce

im curious to know how i would get the residual magnetism back.  the rotor has no winding's on it.  its a cage rotor. i will get some pictures tomorrow.   i have disconnected the output for the welder side incase the diodes were causing a short.  still no change. i dont care if the welder side...

i know the pcb you are talking about.  this does not get power untill the generator generates, it is powered via a transformer tapped from phase 3. being a self excited induction generator, im told there is very little than can go wrong.  you cant burn out coils because the rotor magetic field...

i dont know how long but i can only guess so.  just to make it clear, this has NO regulator.   it is self excited induction.  everything i have ready tells me it should gradually build up voltage.  but leaving it running for an hour, its still sat at 1.5v phase to phase.

hi all i hope this section of the forum is suitable for this. i have a genset 8/300  welder generator.   8kva 3phase output. but i cant get it to make any power.     it uses a self excited squirrel cage induction type generator.  all stator coils measure at 0.9 ohms.    when running at 3100...