rock_mumbles wrote:Here's what doesn't make sense:
230V x 0.22A = 50.6VA
230V x 0.22A = 50.6VA
6.3V x 3A = 18.9VA
6.3V X 3A = 18.9VA
Add all of this up and you get 139VA ...
Pardon me if I seem clueless here...
Wouldn't you only have 0.22A or 220mA available with the windings connected in series? You could add the current rating if they were in parallel... I think. I did just drink a highball...
Proceed to flog me if you see fit. I need to get it straight.
"Education is what you're left with after you have forgotten what you have learned" - Enzo
Yes I believe the current rating would be the same as its all going through a single wire that was originally only rated for 220mA. If you parallel the windings then you're going through two wires rated for 220mA so can normally double it but check with the manufacturer first.
I got a reply from AnTek using a 100VA TX as an example:
"Normally our transformers are 20% above our rating. We do not expect all coils to be at full power at the same time, which is why the VA don't add up to 100 VA evenly."
Clear as mud!
"Education is what you're left with after you have forgotten what you have learned" - Enzo
