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Re: Transformer Need
Original poster: Bert Hickman <bert.hickman@xxxxxxxxxx>
Tesla list wrote:
Original poster: Frank <fxrays@xxxxxxxxxx>
Hi all,
I am trying to locate parts to build a coil from a 1937 article I have.
Does anyone know where I can obtain an old pole transformer, 4400 V
to 120 V 5 KVA?
This was common for houses back then but impossible to find so far.
I do not want a modern higher voltage transformer as I do not need
higher current, voltage or size.
Thanks ,Frank
Hi Frank,
I have a couple of 2400 volt/120 volt 20:1 750 VA potential
transformers that could be connected in series to get you near the
desired output. The pair should easily be capable of delivering 3 kW
for intermittent TC use.
They are each "single ear" type (measuring between phase to neutral
in a wye circuit), so only one side is designed to operate at high
potential. The model number on the faceplate is 643X85. The outline
drawing and specs for similar JVM-3 transformers (they appear to be
similar to model 763X021042) are below:
http://www.geindustrial.com/products/drawings/8949740.pdf
http://www.gepower.com/prod_serv/products/metering/en/downloads/jvm_3.pdf
They weigh about 30 pounds each. Let me know if you're interested - I
no longer have any need for them. Looking to get about $30 each for
them plus shipping. I'm located near Chicago.
Bert
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