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Subject: Circulating current loss in a transformer
Author: t1-vasagam_sp@
Date: 1999-08-10 09:32:00Hello Everybody,
I am doing an analysis on finding out the circulating current loss in
a transformer winding using Ansys Emag. A rough sketch of the model is
shown in the attached file (winding.zip). The IV winding is disc type
and is modeled with individual conductors. There are totally 126 discs
and each disc is made of 2 turns of 12 parallel conductors (hence
radially there are 24 conductors in each of 126 discs). Thus there are
totally 252 turns, each having 12 parallel conductors and these
conductors are named from 1 to 12 as shown in the fig.
I have applied voltage by selecting all conductors named by same
number (1, 2, ---,12) and defining voltage of 38105 volts. I expected
that this 38105 volts will get applied to all 252 turns, so that
across each conductor voltage of 38105/252 will get applied. But
voltage on individual conductor is coming as 38105. Why is it so? How
can I make all the 252 conductors in a set as series? Before applying
the voltage, all the conductors in individual 12 sets are coupled by
CURR degree of freedom.
The problem is solved using the Time Harmonic method. When I checked
the current induced in each set, I got the current value only in
magnitude - the phase angle difference was not shown. How can I check
the phase angle difference of current in each set.
Vasagam SP
t1-vasagam_sp@m...