Imagine you are asked to install a used buck-boost transformer. Imagine you
could normally do this in a few minutes. Except if the leads were cut short
such that identifying characters on the leads' insulation were missing.
Identifying 2 leads belonging to any one winding is straightforward ohm meter
work. Maybe use of a ESR meter might help separate the X windings from the H
windings?. But identifying which specific winding is which and which end is
whichnot so straightforward. For me.
How would you go about identifying the windings? Maybe use a Variac to input
voltage to each of the windings then measure the output of the others? What
outputs should I expect at, for example, the H3/H4 winding with a voltage on
H1/H2 winding? How to identify backward connection of a winding?
Are the two H windings identical? The two X windings?
This is a 208 -> 230 (ie, 12 & 24 v buck-boost voltage) single-phase
autotransformer in N. America.
I have the wiring diagrams in .pdf for Square D buck/boost xmfrs. The
X wires are the heavy wires and the H wires the thin wires. X1 and X2
are the ends of one winding. X2 and X3 the ends of another winding.
The other windings are similar. Anyway, if you send me an email I'll
send you the .pdf of the wiring manual. Then you will be able to
figure out how to wire the thing. It should be easy enough, just
measure the output in one random configuration and you will be able to
tell what's what by looking at the manual.
This email is free from viruses and malware because avast! Antivirus protection is active.
Hey dave.. Imagine only sending this to groups that would be
interested. Woodworking , probably not
Frequently wood- and metal-working groups are interested in mains wiring for
their equipment. They're not completely disinterested in my experience...
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.