Micro CoGen.

I have tried a few caps that I had laying around to see what would happen.I first tried a 200 volt 330uf and had an increase of 6 volts no load but under load it lost 3 volts,I then paralleled two together this ran cooler with about an additional 2 volts but still a small drop under load and a spike when load was dropped.I then tried two 200 volt 2200 uf caps and got111volts unloaded under load it jumped to 115 volts and no spike when load was dropped .I think this may work anyone care to give a guess as to what caps may give me 120 volts .

      Thanks Potter

Sorry yes this is a brushed head

Thanks Bruce no all is clean and tight I had this striped completely down, Do you think a capacitor across the field windings would help,or one of the inexpensive 220 volt AVR from Tom Orsbern ?.   

    Thanks Potter                       

Thanks Thob,Its an old Winpower CM12P4C I do not have a wiring diagram.It is using a 110 leg through a diode bridge to power the main field winding and also a current transformer to power a compensating field winding .There are no adjustments the only thing that I am not to sure of is they have a small cap across the diodes I think this is to protect the diodes

  thanks Potter

I have just put the gen head back on my Petter find and can use some help.On start up I had to flash the field it now starts putting out fine but with a max of 101-202 volts at 60 hz.Is there a simple fix or does this mean that I have a bad field winding and should just give up.

      Thanks Potter

hoping I can just reuse the taps now to figure them out.

BruceM are you saying If I have a 240v transformer with a center tap on the primary and put 120 leg to center tap that I will get 240 leg to leg???

   Thanks Potter

Thanks good advice  no seriously I am very careful when around high voltage or Lowe voltage high amps.

    Potter

Thanks for the info TimSR2 I am Only looking for about 3kw these cores wound must weigh 150 lbs each . I was hoping I could reconfigure with the taps I Guss not so lucky. Will look to see how hard to remove the secondary thanks

    Potter

I found this welder at the dump today.I have been wanting a 120 to 240 step up transformer and was wondering if I could re-configure one of these to work ?  . Any help Most appreciated.

         Potter

No sorry there in the northern Bahamas but only a hop skip and a jump from W.P.B. Florida I might have one or two to spare.

Too late for the Bridgeport already sold . There are about 4 8/1 VA and 1 cs 8/1 I was wondering why I was having such a hard time finding any of these over the past few years it seams this fellow had beat me to them . He also has one in better condition that he is keeping for himself and one sitting in the weather that I can have also some parts.

   Potter

Some pics 

Anyone know where I can find a starter for a Shibaura S753.
    Thanks Potter                     

If you have no luck getting them try looking in old cloths driers or old electric hot water heaters, they are flat but  I have found that they work fine if strapped on tight.


   Potter