[TCML] Transformer cores

[Paul Bidmead]

Mike;
youll find that the welds on a mot are on the very outer sides of the EI 
setion to hold them together
this is fine to do as long as theres no welds in the coil opening the 
reason for this is that the eddy currents have not got a complete path 
around the cross section of iron in each leg therefore still no losses

if there was welds both inner and outer sides of each leg then it would 
be a problem

hope i make sense (it did in my head)

Regards
Paul Bidmead
Automated Test Engineer
Omnitronics P/L

MIKE BAILEY wrote:
>  
>    
>   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
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