Lego and other HV things
jdm at synthcom.com
Fri Jun 27 15:05:01 CEST 1997
On Fri, 27 Jun 1997, Mark Pulver wrote:
> I think what amazes me the most about this is "how does one go about
> getting a power pole transformer,
Get drunk and run into a power pole. :)
You can buy them if you know who to call, though I suspect this guy got
it from someone who worked for the electric company.
> and just where do you get the 480(?)
> needed to drive it?"
I assume that the transformer was being used to step UP from 240V
to a medium voltage, wasn't it?
Most pole mounted transformers are for transforming from a medium voltage
of 4160-13,800V down to a low voltage of 240V. Occasionally you'll find
480V transformers on poles, but usually if you're going 480V/3 phase, then
you'll have a pad mounted transformer.
And if you were wondering, High Voltage is 115-230kV, and Extra High
Voltage 345-765kV, according to the IEEE. These are typically used to get
from the power plant to the substation, where's it's dropped down to a
medium voltage by those big-ass transformers you see. You wouldn't want
high voltage lines running through your neighborhood.
> Can you really call the electric company and say "hey,
> I need a 100 amp 480 run to the house".
The electric company wouldif you had a 480V service installed and up to
code. They would probably want to know what your projected demand was to
justify the cost, but I bet they would do it anyway if you offered to pay
for the transformer. Not that you need it - it's scary shit compared to
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