> There are no 4 prong outlets in my house so I guess I am doomed and also
> damned as Im not going to rewire anything but the new appliance when and
> if I need it.
>
> Carl
> KM1H
>
>
> ----- Original Message -----
> From: "Al Kozakiewicz" <akozak@hourglass.com>
> To: <TexasRF@aol.com>; <km1h@jeremy.mv.com>; <ranchorobbo@gmail.com>;
> <steve@dx4win.com>
> Cc: <amps@contesting.com>
> Sent: Tuesday, February 14, 2012 11:08 AM
> Subject: RE: [Amps] Source for plate xfrmer
>
>
> First off, NEC codes end at the outlet. An amp is an "appliance" and
> would be covered by UL, which is entirely optional. There is nothing that
> forbids such a practice - an electric range is a good example as the overn
> elements are typically 240v, while the burners, controls and lamps are
> 120v.
>
> The issue is that a range uses a 4 prong outlet - 2 x hot, neutral and
> ground, while your typical amp/AC outlet is missing the neutral. You may
> NOT connect your fan between a hot and the chassis ground, even though it
> would be electrically rational. If the safety ground failed, the chassis
> would then be at 120v with respect to ground.
>
> Al
> AB2ZY
>
> ________________________________________
> From: amps-bounces@contesting.com [amps-bounces@contesting.com] On Behalf
> Of TexasRF@aol.com [TexasRF@aol.com]
> Sent: Tuesday, February 14, 2012 10:54 AM
> To: km1h@jeremy.mv.com; ranchorobbo@gmail.com; steve@dx4win.com
> Cc: amps@contesting.com
> Subject: Re: [Amps] Source for plate xfrmer
>
> I guess there is some electrical code that forbids connecting the 120vac
> blower between one side of the 240ac line and neutral?
>
> I hope this doesn't start another round of ground vs neutral wiring sins.
>
> 73,
> Gerald K5GW
>
>
>
>
>
>
>
> In a message dated 2/14/2012 9:41:22 A.M. Central Standard Time,
> km1h@jeremy.mv.com writes:
>
> You can get more benefit with primary taps and not bothering with a pair
> of
> 120V windings; use a seperate 120V line for blowers, LV supplies, etc.
>
> Tapping the secondary limits your KVA as you go to lower voltages and who
> the heck needs a CT in a big amp?
>
> Carl
> KM1H
>
>
> ----- Original Message -----
> From: "Rob Atkinson" <ranchorobbo@gmail.com>
> To: "Steve Bookout" <steve@dx4win.com>
> Cc: <amps@contesting.com>
> Sent: Monday, February 13, 2012 10:10 PM
> Subject: Re: [Amps] Source for plate xfrmer
>
>
>> In addition EPD makes a good product but plan on spending at least
>> $400, perhaps more.
>>
>> http://epd-inc.com/
>>
>> How much are you prepared to spend? Because of the price of copper
>> any custom plate iron you get that has some muscle is going to
>> probably cost some coin. More if you want it potted and several taps.
>> Even if you don't need them if you are paying for a custom job it's a
>> good idea to get a CT on the secondary and of course one on the
>> primary, plus a few more taps on the secondary. You may decide 4.25
>> KV DC with a cap input filter is a bit high, or if not, extra taps
>> afford different supply voltages and increase the versatility of the
>> transformer and its resale value if you ever decide to let it go.
>>
>> 73
>>
>> Rob
>> K5UJ
>>
>> On Mon, Feb 13, 2012 at 12:35 PM, Steve Bookout <steve@dx4win.com>
> wrote:
>>> Hello all,
>>>
>>> Where do you look for a new HV plate transformer these days?
>>>
>>> I understand Peter Dahl is no longer around.
>>>
>>> I'm looking for 3000 VAC secondary @ 1+ amp CCS.
>>>
>>> TIA
>>>
>>> 73 de Steve, NR4M
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>
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