On Wednesday, 26 February 2014 18:37:51 UTC, dennis@home wrote:
On 26/02/2014 17:32, Dave Plowman (News) wrote:
Does it matter if one winding has the connections reversed when they are
in series?
Yes it matters, one will cancel out the other.
The same would happen if the parallel ones were reversed.

If they do cancel out, the transformer current will depend
on the primary winding resistance, as there will be hardly
any inductance. This means that the transformer will let out
it's magic smoke.

John