Re: [TCML] Transformer cores

[FutureT@xxxxxxx]

In a message dated 3/13/2008 9:53:44 P.M. US Eastern Standard Time,  
m.bailey@xxxxxxxxxx writes:


I was looking at my mot transformers and noticed that the  laminations were 
welded together in a couple long welds that joined all the  laminations. I 
thought the laminations were supposed to be insulated from each  other ? I am 
going to be starting on my slide choke soon and was thinking  about how to stick 
the laminations together , I came up with coating each  piece with polyurathane 
then using epoxy to glue the whole thing together ,  then coating the whole 
thing  with a coat of epoxy that way the  laminations are all separated and not 
touching .But if welding them together  will work then I will do that . If I 
can weld them is there any point in even  using polyurathane to insulate the 
layers ? thanks for any replies  
I just finished building my 6MOT power supply , I am very  happy with the 
results ,the mots are in pairs and placed in 3  .50 cal  ammo boxes and filled 
with oil , thanks to everyone on the list for the info  on MOT stacks , the 
archives have been extremely helpful. hope to have some  pictures one day  

Thanks again
Mike



Mike,
 
the welding method works OK because there's only a small volume or area  of
the transformer that's welded.  Most of the area of the laminations  are 
insulated.
 
Cheers,
John



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