In reply to David Jonsson's message of Tue, 28 Dec 2010 23:42:20 +0100: Hi, [snip] >And why is transformers under load more lossy than those unloade. The >explanation of transfromer losses that I have read can't explain why the >loss is proportional to the effect through the transformer. [snip] I think the simple answer is that losses are proportional to the strength of the magnetic flux (because the flux also creates eddy currents in the core material). The flux is proportional to the current, and the current is larger in a loaded transformer.
Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/Project.html
