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RE: [TCML] pole pig question ###
Yes I have photos.
Contact me off list and I can email them to you.
D.C. Cox
>
> I'm intriued by the concept of the "pig in the cabinet". Are there
> pictures of this setup?
>
>
>> -----Original Message-----
>> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx]On
>> Behalf Of David Rieben
>> Sent: Monday, January 28, 2008 7:11 AM
>> To: Tesla Coil Mailing List
>> Subject: Re: [TCML] pole pig question ###
>>
>>
>> Hi Hans,
>>
>> That's why I actually place the pole pig inside my control panel.
>> I can't accidently bump into any bushng when the pig is com-
>> pletely enclosed inside my control panel assembly. Of course
>> this added weight does make for an extremely heavy control
>> panel assembly - ~ 500 kilograms.
>>
>> David Rieben
>>
>>
>>
>> ----- Original Message -----
>> From: "Hans Schattenmeister" <klugmann@xxxxxxxxxxx>
>> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
>> Sent: Monday, January 28, 2008 5:19 AM
>> Subject: RE: [TCML] pole pig question ###
>>
>>
>>
>> The only thing that frightens me about this configuration is the danger
>> of
>> electrocution. With two hot HV bushings you can accidently bump one and
>> survive. With one bushing grounded the other remains hot at a full 14.4
>> kV.
>> Bump this one and you'll die. Just a thought. Your rubber tennis shoes
>> won't
>> insulate you from 14.4. They might protect you from 7.2 kV.
>>
>>
>> Herr Schattenmeister> From: drieben@xxxxxxxxxxx> To: tesla@xxxxxxxxxx>
>> Subject: Re: [TCML] pole pig question ###> Date: Sun, 27 Jan 2008
>> 07:45:31 -0600> CC: > > Yep, I have have to totally agree with the good
>> doctor> about grounding one ear of the pig. As a matter of fact,> since
>> you
>> can ground one ear of the pig, this means that> you can indeed use a
>> SINGLE
>> eared pig and use the> case as the return ground. "I" tie this case
>> ground
>> of the> pig to the RF ground and leave it isolated from the mains>
>> ground
>> since I also tie both the primary and secondary> coils' base to the RF
>> ground as well.> > I think DC and I may veer a bit in our opinions in
>> how>
>> you get the HV from the pig to the base of the coil. "I"> like to use
>> x-ray
>> cable and let the outer shield be the> RF ground while letting the inner
>> condutors carry the> HV potential. DC has had issues with the Blumlein
>> ef->
>> fect from using some type of coax for the transmission line> but I have
>> never had any problems with this using x-ray> cable, but that's another
>> thread/discussion.> > He is also totally correct in playing it safe by
>> completely> unplugging the power before "laying on of hands" to the>
>> naked
>> conductors of the primary circuit. Also, make> darn sure that the
>> capacitor(s) is completely discharged> (better yet - crowbar shorted!)
>> before doing this.> > David Rieben> > > > ----- Original Message ----- >
>> From: <resonance@xxxxxxxxxxxx>> To: "Tesla Coil Mailing List"
>> <tesla@xxxxxxxxxx>> Sent: Saturday, January 26, 2008 7:26 PM> Subject:
>> Re:
>> [TCML] pole pig question ###> > > >> >> >> > a typo ---- should be NEVER
>> trust your life to a relay or switch.> >> > Dr. Resonance> >> >> >>> >>>
>> >>>
>> >>> >> Best to ground one of the pigs bushings, ie, run it single ended
>> ouput.> >>> >> also, NEVER just "shut off the power while adjusting pri
>> tap". This is> >> suicide. NEVER trust your like to a switch or relay.
>> ALWAYS UNPLUG the> >> power cord from the wall before going anywhere
>> near
>> the pri coil. > >> ALWAYS.> >> Then it can never bite you, and one bite
>> from
>> a pole pig usually results> >> in death not just a shock.> >>> >> Dr.
>> Resonance> >>> >>> >>> >>> >>> This is how I would hook it up.> >>>> >>>
>> Connect 240 VAC to the transformer primary with the variac connected in>
>> >>>
>> series in one of the lines.> >>>> >>> Put a choke coil on the each High
>> Voltage terminal and connect them in> >>> parallel with the spark gap.
>> Do
>> not ground any of the HV terminals.> >>>> >>> Connect a wire from the
>> other
>> side of the spark gap to 1 side of the> >>> capacitor.> >>>> >>> Connect
>> a
>> wire from the other side of the capacitor to the inside turn> >>> of>
>> >>>
>> the primary coil.> >>>> >>> Connect a wire from the other side of the
>> spark
>> gap to the aligator clip> >>> wire that goes to the other end of the
>> primary
>> coil.> >>>> >>> No choke coils in the HV lines at the primary coil.>
>> >>>>
>> >>> Connect the bottom end of the secondary coil to a GOOD earth
>> ground.>
>> >>>> >>> Connect the strike rail around the outer edge of the primary
>> coil
>> if you> >>> have one to earth ground too.> >>>> >>> Toroid or sphere for
>> the
>> top load.> >>>> >>> Turn on the 240 VAC crank up the Variac and adjust
>> the
>> primary tap for> >>> best resonance frequency. Needless to say always
>> turn
>> off the voltage> >>> before moving the aligator clip to another primary
>> tap.> >>>> >>> Be sure you have a cooling fan on your spark gap other
>> wise
>> it will over> >>> heat and your coil will produce sparks for only about
>> 10
>> seconds or> >>> until> >>> the spark gap gets too hot to function
>> correctly.> >>>> >>> I like to use 12 guage solid copper insulated house
>> wire for all my> >>> connections it makes it very easy to bend the wires
>> and
>> put them exactly> >>> where I want them and they stay there. Make sure
>> all
>> wires have plenty> >>> of> >>> clearance to prevent arcs to other
>> places.>
>> >>>> >>>> >>> http://home.earthlink.net/~gary350/tc10-4.jpg> >>>> >>>
>> http://www.liveleak.com/view?i=563_1188208737> >>>> >>>> >>>> >>>> >>>>
>> >>> -----Original Message-----> >>>>From: Jim Calvin
>> <jcalvin@xxxxxxxxxxxxxxx>> >>>>Sent: Jan 16, 2008 4:25 PM> >>>>To:
>> 'Tesla
>> Coil Mailing List' <tesla@xxxxxxxxxx>> >>>>Subject: [TCML] pole pig
>> question> >>>>> >>>>Hi guys,> >>>>> >>>> I am trying to test my 25KVA
>> pole
>> pig. I am not running my> >>>>coil yet. I wanted to test the system out.
>> So
>> this is how I have it> >>>> wired:> >>>>> >>>>I have a 240Vac input with
>> a
>> 7.8kKVA variac with a control switch. I am> >>>>using the variac to
>> regulate
>> the voltage. I have a 6.5mH choke (hand> >>>> made> >>>>using 10 gauge
>> wire)
>> in series with the primary. I have a .05uF (at> >>>> 50KV)>
>> >>>>capacitor
>> connected to the HV output of the pole chicken as a test load.> >>>> One
>> of
>> the> >>>>HV outputs is connected to GND along with the pole chicken can.
>> My>
>> >>>> variac is in> >>>>a control box with a voltmeter and a current
>> meter. I
>> have a fluke> >>>> meter> >>>>across the input 240Vac of the pole
>> chicken
>> after the ballast. Between> >>>> the two> >>>>volt meters I was going to
>> check the voltage drop across the ballast see> >>>> if> >>>>the it was
>> doing
>> it's thing.> >>>>> >>>>I set the varaic at a 100V using the meter in the
>> control box before I> >>>>switch it on to the pole chicken and ballast.
>> When
>> I switch it on I> >>>> would> >>>>expect the voltage in my panel meter
>> to
>> stay the same and my fluke meter> >>>> to> >>>>be slightly less because
>> of
>> the drop across the ballast. I figure my> >>>> load> >>>>should draw
>> about 8
>> amps out of the variac.> >>>>> >>>>Well when I turn the switch on the
>> power
>> to the pole chicken and> >>>> ballast,> >>>> the> >>>>fluke meter is
>> giving
>> 110v and the meter in my control box jumps from> >>>> 100> >>>>to 110V
>> (aprox. It is an analog meter).> >>>>> >>>>Then I decided to use my
>> oscilloscope (I am part owner of design> >>>> consulting> >>>>company
>> and I
>> have access to this equipment) and check the voltage> >>>> before>
>> >>>>the
>> ballast and after. Well the voltage after the ballast went up just> >>>>
>> like> >>>>the fluke had shown.> >>>>> >>>>What am I doing wrong? Is it
>> possible that the HV output is leaking> >>>> back> >>>> to> >>>>the
>> primary?
>> What is the isolation voltage between primary and> >>>> secondary?>
>> >>>>>
>> >>>>I got this pole chicken from T&R electric. It was actually a gift
>> from>
>> >>>> a> >>>> bunch> >>>>of friends/fellow coilers). It is supposed to
>> be
>> new/reconditions and> >>>>checked by them.> >>>>> >>>> >>>
>> _______________________________________________> >>> Tesla mailing list>
>> >>>
>> Tesla@xxxxxxxxxxxxxx> >>> http://www.pupman.com/mailman/listinfo/tesla>
>> >>>>
>> >>> >>> >> Dr. Resonance> >>> >>
>> _______________________________________________> >> Tesla mailing list>
>> >>
>> Tesla@xxxxxxxxxxxxxx> >> http://www.pupman.com/mailman/listinfo/tesla>
>> >>>
>> >> >> > Dr. Resonance> >> >
>> _______________________________________________>
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Dr. Resonance
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