Abhishek,
Looking at your sample drawing, the problem I see is that the drawing's
"CONFIG" is set up so that the wire connection "trap" distance is much too
large. The wire segments are interpreted as being "shorted" together,
therefore only one wire number is generated.
To see this problem, select the "CHECK WIRE" command (under the "Spool of
Wire" toolbar flyout). Pick on one segment of the three-phase bus. AcadE
will draw, in temporary graphics, the extents of the wire connection "trap"
distance around the wire segment. The temp graphics should show the trap
distance to be very tightly hugging the wire segment. But in your test
drawing, the trap is shown as a very large rectangle around the wire
segment. This trap distance is actually capturing an edge of component in
the adjacent phase and so on, so all three phases end up being "shorted
together" and processed as a single wire network.
One way to quickly fix this is to go to the AcadE "CONFIG DRAWING" toolbar
button (next to last toolbar button) and select the "Scale" button (in the
upper right-hand part of the dialog). You have the "mm full size" button
selected. Change it to "inch". This should fix the problem for this drawing.
On this same scale dialog, I notice that you have the "feature scale
multiplier" set to 10.0 (to scale all of your symbols up by a factor of 10).
I think, long term, it would be good for you to scale each of your symbol
.dwg files up by the factor of 10 and then be able to "feature scale
multiplier" back to its normal value of 1.0. If you decide to do this, there
is a utility in AcadE that can process a full subdir of library symbols,
scaling them in a "batch mode". Go to the "Electrical" pulldown > "Component
misc" > "Symbol Lib Text Size Wizard".
Hope this helps!
Nate.