Still working on this 1033 transformer. Here's what I have: Terminal post A
B = 5.6 VAC , BC = 10.98 VAC.
Now for the variable voltages:
BU Full open = 11.04 VAC, moving counterclockwise the voltage drops to
115 mVAC at a point where the handle pointer is pointing due west. The
pointer continues to rotate another 10 degrees counterclockwise and the
voltage rises up to 4.15 VAC.
AU Full open = 16.62 VAC moving counterclockwise the voltage drops to 5.7
VAC at a point where the handle pointer is pointing due west. The pointer
continues to rotate another 10 degrees toward counterclockwise and the
voltage rises up to7.2 VAC.
1) AB and AU is .5 VAC high. Any problems with this?
2) The little rise in voltage where the handle can be rotated past the low
voltage of the range. Mechanically this occurs when the wiper arm is moved
off of the transformer contact area. Is this normal? It seems as though the
arm is just moving a little too far counterclockwise, but I don't see
anything intended to prevent this and I don't see why the voltage would rise
at this point when the wiper is off the contact area. Any guesses? Should I
chuck this in the trash? Thanks all and Merry Christmas.
- posted 17 years ago