Re: [TCML] VFD motor

[FIFTYGUY@xxxxxxx]

In a message dated 1/23/09 11:13:32 A.M. Eastern Standard Time,  
ashumate3@xxxxxxx writes:

>Transformers are usually design around an operating frequency -  i.e. 25,  
50, 
>60, 500 cycles. As long as your transformer is  designed around 60 cycles 
you  
>can lock you drive in at 60  cycles. This can usually vary +/- 10 for   
>transformers.
 
    Running most iron-core transformers up to 400Hz  will generally increase 
their efficiency, but running a 60Hz rated transformer  at much less than 60 
(or 50 if it's rated for it) will get it hot  quickly!
 
> No manufacture will recommend this application because that  is not  
>what their drives are for, but what you do with it after  you buy it is up 
to  you.




It would probably depend a lot on the load on the  other side of the 
transformer, but a typical transformer into a resistive  load might look pretty screwy 
to a drive that is designed for a motor's  characteristics.
 
-Phil LaBudde
Center for the Advanced Study of Ballistic  Improbabilities
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