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Re: Westinghouse Transformers (newbee)
Tesla List wrote:
>
> Subscriber: voltmaster-at-juno-dot-com Sun Feb 16 21:47:09 1997
> Date: Sun, 16 Feb 1997 18:06:53 EST
> From: Nick h McQuiston <voltmaster-at-juno-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Westinghouse Transformers (newbee)
>
> Hi all
>
> I am new to this list so forgive me if this topic has already been talked
> about.
>
> About two weeks ago I was digging around in a junk yard and found 8
> westinghouse
> step down transformers. They are encased in hard rubber and measure 10in.
> by 10in. by 12in. Luckily one had a plate on it saying < Type PTM Ratio
> 1:120 Primary 14400V F.W. imp. test 95>. I took one and sparked a 30VDC
> power supply off the secondary an the primary threw a spark about an inch
> and a half to two inches.
>
> I just wondered if any one knew how to wire one up in reverse to run a
> TC.
>
> -Nicholas McQuiston
> voltmaster-at-juno-dot-com
Nicolas,
Grab thoses puppies! They're potential transformers, precisely wound
instrumentation type transformers that work very nicely as mini-pole
pigs on Tesla Coils. The 120:1 is the ratio of input:output voltage.
Power companies use these to precisely measure high voltages by stepping
them down - 14,400 volts in divided by 12000 = 12- volts out. It works
the other way around for Tesla Coils! Typical power ratings are 1 to 3
KVA.
Like a pole pig, however, these transformers REQUIRE an external ballast
to limit short circuit current. Grab these if you can get them cheaply -
they're valuable for coiling and for trading stock with other
knowledgable coilers. BTW, where are you located geographically - there
are probably some coilers on the list who are already drooling!
Safe coilin' to you!
-- Bert --