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Re: Neon Transformers With/Without PFC
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To: tesla-at-grendel.objinc-dot-com
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Subject: Re: Neon Transformers With/Without PFC
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From: jim.fosse-at-bdt-dot-com (Jim Fosse)
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Date: Tue, 12 Mar 1996 08:01:06 GMT
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tesla-at-grendel.objinc-dot-com On Mon, 11 Mar 1996 08:31:12 +0700, you
wrote:
>>From oldradio-at-cheney-dot-net Sat Mar 9 01:21 MST 1996
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>From: Jim Watson <oldradio-at-cheney-dot-net>
>To: "'Chips Tesla Board'" <tesla-at-objinc-dot-com>
>Subject: Neon Transformers With/Without PFC
>Date: Fri, 8 Mar 1996 08:35:11 -0600
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>Hello again,
>
> I understand that some neon sign transformers are already power factor corrected.
> What I am not sure of is how to tell this from name plate data. Three of the four transformers
> that I will be using contain the following data:
>
>1 - Jefferson Electric, Cat. #724-111, 120V, 60Hz, 500VA, 15,000V, 60mA.
>2 - Jefferson Electric, Cat. #721-111, 120V, 60Hz, 450VA, 15,000, 30mA.
>
>All three have secondaries with grounded midpoints. I did not record the data from
> the nameplate of the fourth transformer, but it is also 15kV-at-30mA.
>
> Is the only consequence of no PFC simply less power delivered to the circuits (and the resulting lower coil performance)?
>
> I am nearly ready to go with my coil. All that is left to do is to assemble the power supply,
> and for the capacitor from Condensor Products Corp. to arrive.
>
> Any comments that you care to make are welcomed and appreciated.
>
>
> Jim Watson
>
Jim,
the neon that I blew 2 weeks ago was a jefferson electric
724-411 500VA 15KV -at- 60ma. 2 lines above the catalog number is the
line H.P.F. OUTDOOR, that is the indication that it has a power factor
correction cap in it. Mine did when I took it apart.
jim