These pole transformers are often replaced when upgrading a
neighborhoods electrical
distribution system. In the 60's and 70's they were very often available
due to the
fact that many homes started using air conditioning. The home owners had to
upgrade from
100 amp service to 200 or more to accommodate the power requirements of the
air conditioning.
Also, the utility companies had to replace the pole transformers and drops
to the homes with
new larger capacity ones. So lots of them were available. Now you find them
mostly at ham
fest and silent key sales. But there are still neighborhoods that are
requiring more energy due
to the fact that in some areas that have cheap electricity it is more
economical to use heat pumps than gas.
Naturally the primary becomes the secondary and vice versa for a HV
transformer.
73
Bill wa4lav
At 03:33 AM 1/28/2003 +1100, you wrote:
>Bill Fuqua Wrote
>
> >snip
>3. The standard pole transformers which were popular for building power
>supplies from
> provide much more than 3KV unless you drop the input voltage down to
> 40 or 50 volts.
> >snip
>
>Please clarify my thinking here as to what you mean by "standard pole
>transformers"
>Is this the same transformer that is situated on the power poles that
>supply the electricity to the consumer???
>If this is correct how do you obtain one of these transformers??
>Would they not be faulty to be taken out of service??
>What would be the output voltage of one these transformers???
>
>Not being a local ham {that is in USA} I am just curious!!!
>BTW our output power limit here in Australia is 400w PEP on ssb
> Regards Rick VK3YM
>
>
>
>
>
>
>
>
>It is the soldier who salutes the flag,
>serves under the flag
>and who's coffin is draped by the flag,
>who allows the protester to burn the flag.
>
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