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Re: [Amps] Fw: Source for plate xfrmer

To: amps@contesting.com
Subject: Re: [Amps] Fw: Source for plate xfrmer
From: Pete Smith N4ZR <n4zr@contesting.com>
Date: Tue, 14 Feb 2012 17:11:56 -0500
List-post: <amps@contesting.com">mailto:amps@contesting.com>
I just installed a new GE Monogram range.  It came with a 4-prong plug 
and cord, but with instructions for re-wiring to use a 3-wire circuit, 
which I did.  In involved jumpering the chassis of the stove to the 
neutral wire.  I have a hard time imagining that these instructions 
would have been given if they were not compatible with the NEC or UL.

73, Pete N4ZR
The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at 
reversebeacon.blogspot.com,
spots at telnet.reversebeacon.net, port 7000 and
arcluster.reversebeacon.net, port 7000


On 2/14/2012 1:04 PM, Carl wrote:
>
>> 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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