[AMPS] Transformer Current ratings

[2]

>Rich says:
>
>>The primary winding R as well as the mains R are also factors. 
>
>
>For finding the winding temperature rise at a given load, (which is the 
>context
>for which this was suggested), it doesn't matter which winding resistance you
>measure. You are only interested in cold and hot readings.
>
//  The total equivalent series R [ESR] is a determinant in such 
calculations.  The primary and secondary resistances add - accounting for 
turns ratio. 

>Regulation is also affected by leakage reactance, as well as winding 
>resistance.

//   True enough, but with a Hipersil core, ESR is >90% of the game.

-  R. L. Measures, 805.386.3734,AG6K, www.vcnet.com/measures.  
end


--
FAQ on WWW:               http://www.contesting.com/FAQ/amps
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com