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Posted by Ralph Mowery on May 4, 2008, 11:29 pm
> On 5/4/2008 2:01 PM Boden spake thus:
>
>> Ralph Mowery wrote:
>>
>>> YOu can not parallel 2 transformers to help in this case. The problem
>>> with low voltage wiring is there is too much voltage drop along the
>>> wires unless very large wire is used.
>>
>> While you shouldn't parallel two transformers if replacing wire is a
>> Herculean task it would be possible to place a rectifier on each
>> transformer secondary, and build a fairly simple active device that will
>> sum the currents from each source to accomplish a the same thing as
>> paralleling the transformers, The only difference is that the lamps
>> would be supplied with dc instead of ac.
>
> You can actually "parallel" (god, that use of a noun as a verb just grates
> on my ears; I must really be old school; should read "run in parallel")
> two transformers without any of that stuff you mentioned, assuming they're
> nearly identical in size. You just need to make sure they're in phase,
> which is pretty easy to determine with an ordinary voltmeter.
>
> But it isn't a recommended practice, and there are other, better
> solutions.
>
Yes, two transformers can be put in parallel. That will not help the
origional problem. Without going to some exotic circuits, there is nothing
that can be done without installing very large wire or rearanging the way
the bulbs are wired.
If another similar transformer is put at the far end of the run of lights it
may help out on the problem. This will put the transformers in parallel
with a long run of wire between them. The lights on each end will be about
full brightness and the ones toward the middle will be the dimmest.
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