View Single Post
  #64   Report Post  
Posted to sci.electronics.repair
JosephKK JosephKK is offline
external usenet poster
 
Posts: 454
Default Isolation transformer draws excessive current under no load condition

On Sat, 18 Feb 2012 21:31:17 -0800 (PST), spamtrap1888
wrote:

On Feb 18, 4:22*pm, "Phil Allison" wrote:
"Cydrome Leader"

I'd say your transformer is bad or somehow connected wrong.


** No way.

The OP's data shows it is operating normally and correctly.

10 degrees temp rise and a PF of 0.15 is A-OK.

.... *Phil


Why doesn't the transformer data sheet include idle current, power
factor, etc.? Or is it embedded in some transformer standard I have to
spend 2000 swiss francs to get?


If it is covered under a IEEE standard it would be about uS$100 to $200.
I have several of them already, but maybe not the one for your
transformer. Nor is the IEEE standard a mandatory one, check local
regulation for what is mandatory.

Speaking of, i need to go buy some more standards right now.

?-)