30 Jan
2011
30 Jan
'11
6:44 a.m.
From: brianlanning at gmail.com
Can some of you EE types talk about the (in)efficiency of stepdown
transformers? Like say a 2000 watt 220 to 110 transformer. How bad
are they?
brian
Transformers have several sources of loss. One is core
eddy currents. This is controlled by the size of the wire.
Another is from the resistance of the wire. The last
is a combination of the primary wire resistance and
the phase current. This is related to the inductance
of the windings.
Dwight