25 Collectable Model Trains: Transformers: Can more than onetransformer be used together? (AC)
Description
This article is from the Model Trains FAQ, by Christopher D Coleman with numerous contributions by others.
25 Collectable Model Trains: Transformers: Can more than onetransformer be used together? (AC)
Connecting Transformers in series is bad news. Don't try it. For
transformers to share a common ground is nosproblem, as long as
their other poles don't touch. Now, it is often necessary to
connect the poles of twostransformers if the load is too great
for a single transformer or when a roller crosses the boundary
betweensinsulated track blocks powered by different
transformers. To do this the two transformers must be placed
insphase. To test the phasing connect the two commons together
and connect a wire to one control terminal.sAdjust the two to the
same voltage level, say 6V. Momentarily touch the wire to the
other transformer's controlsterminal. If a spark occurs they are
out of phase so you must reverse the wall plug of one. If there
is no sparksthey are in phase.
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