Generator repair/ re-exciting windings

   / Generator repair/ re-exciting windings #1  

Jw5875

Gold Member
Joined
Aug 27, 2005
Messages
414
Location
NW Pa.
Tractor
Kubota L3400
Hi to All!

Somewhere in my past I had to re-excite a generator that had sat in storage for several years. The process involved using several 75 watt? light bulbs hooked in series and I don't remember if I had two male plugs, one to plug into a 120 A.C. outlet and the other back into the generator, or if the lead from the 120 A.C. with bulbs was just touched to the brushes.

The Coleman manual shows using a 6 volt battery and touching the polarized (Battery + to generator brush +, Battery - to generator brush -) wire to the brushes.

Does someone out there have reference to my first method described or where I can find more info on this procedure?



Thanks,

jw5875
 
   / Generator repair/ re-exciting windings #2  
Jw5875 said:
Hi to All!

Somewhere in my past I had to re-excite a generator that had sat in storage for several years. The process involved using several 75 watt? light bulbs hooked in series and I don't remember if I had two male plugs, one to plug into a 120 A.C. outlet and the other back into the generator, or if the lead from the 120 A.C. with bulbs was just touched to the brushes.

The Coleman manual shows using a 6 volt battery and touching the polarized (Battery + to generator brush +, Battery - to generator brush -) wire to the brushes.

Does someone out there have reference to my first method described or where I can find more info on this procedure?



Thanks,

jw5875

Google, [excite generator windings "light bulbs"], first hit, RE-ENERGIZING DEAD GENERATORS

Monte
 
   / Generator repair/ re-exciting windings
  • Thread Starter
#3  
Monte,

Many "Thanks". That was what I needed to "Re Excite" my memory on how I did it yrs. ago.


Have a Good one!

jw5875
 
   / Generator repair/ re-exciting windings #4  
Jw5875 said:
Monte,

Many "Thanks". That was what I needed to "Re Excite" my memory on how I did it yrs. ago.


Have a Good one!

jw5875

Did you check out the rest of the web site? Interesting.

Monte
 
   / Generator repair/ re-exciting windings
  • Thread Starter
#5  
Especially using a reversible drill!!!!!!!!!!!


jw5875
 
   / Generator repair/ re-exciting windings #6  
Thanks for the post, I never knew this was necessary... All these years I just took the cover off my old Honda generator and tap the grey plastic blob inside with a mallet, something clicks and it works. I do start it up almost once a month though so maybe mine never had this issue, but it is good to know. Now I want to put my volt meter on my drill and check for voltage.
 
   / Generator repair/ re-exciting windings #7  
Hi! I remember! I make it many times! Operation is for POLARIZE the generator. With generator you have a control box with three lugs GEN ARM BAT You put for a VERY SHORT TIME a jumper between GEN lug and the BAT lug. WHen Motor is running! Good Luck ! Oldmech
 
   / Generator repair/ re-exciting windings #8  
Oldmech.. they are not talking about polarizing a generator that is engine mounted for charging an auto or tractor 6v or 12v battery.. I'm pretty sure they are talking about getting an AC generator going.. IE one to produce 120v / 240vac.. etc.

Also to note.. your polarization technique of flashing GEN/BAT ONLY holds true for A-Circuit generators. A B circuit generator will need the FLD/BAT terminals flashed.

Soundguy
 
   / Generator repair/ re-exciting windings #9  
This thread title reminds me about a little ditty about Millie Watt and Mike O'Farad..... :)
 
   / Generator repair/ re-exciting windings #10  
Anyone know why this would ever be necessary? The magnets in one of these things are permanent. They should stay magnetized for a very long time unless something (like physical shock or another magnetic field) demagnetizes them. Is the purpose of this procedure to remagnetize the magnets if they've lost their magnetization?
 

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