RE: 3 phase pole pig (fwd), Richie's Site back up (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Sun, 4 Nov 2007 23:01:52 -0800
From: Jim Mora <jmora@xxxxxxxxxxx>
To: 'Tesla list' <tesla@xxxxxxxxxx>
Subject: RE: 3 phase pole pig (fwd), Richie's Site back up (fwd)

Yes, Very nice and a stout beast. We don't have any like that State side!
The transformer appears to be low voltage wye, HV delta. I can't say what
your inductor is but remember it has to stand off the high voltage and have
adequate current handling and the proper inductance value to suit your
capacitor choice per Richie's equations. Perhaps others can comment on how
the diodes would be wired in this case. 

Thanks,
Jim Mora
Some supply!!!

Contact me off list if you are looking for HV puck style diodes well over
rated. I was going to use them in my tank but decided to utilize the
Frankenstein tube setup after I found the HV valves were still available.
The diode can operate in air or in oil. They are HVCA HDB7.5, 7.5KV 1.4 Amp.
I have (36) - six in series per pulse (45KV @ 1.4amps) Heak sinked and screw
together. Perfect for you! You will still need a de-queing diode string.
Check Alltronics
http://www.alltronics.com/cgi-bin/category.cgi?&category=19&start=20 (You
may want (9 or 10) of the 5000v version as they are out of the higher
current version, these are 1.7amp.

Here's another pic and PDF of the ones I have...
http://theelectrostore.com/shopsite_sc/store/html/diodes-hdb7.5-hvca-high-vo
ltage.html


--Original Message-----
From: Tesla list [mailto:tesla@xxxxxxxxxx] 
Sent: Sunday, November 04, 2007 10:47 AM
To: tesla@xxxxxxxxxx
Subject: Re: 3 phase pole pig (fwd), Richie's Site back up (fwd)


---------- Forwarded message ----------
Date: Sun, 04 Nov 2007 01:11:47 +0200
From: Tomas Stankevic <Tomas.Stankevic@xxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: 3 phase pole pig (fwd), Richie's Site back up (fwd)

Hi,
Picture of the 3phase pig is here 
http://www.silmeka.lt/lt/produktai/trifaziai_alyviniai_transformatoriai/25_k
va/

-245kg
-5 voltage levels

About charging inductor:
I have kind of transformer 
http://img136.imageshack.us/my.php?image=closerview1iq1.jpg , I've no 
idea how many windings it has but it was inside X-ray power supply 
(65kV) filled with oil. I also have a 0.4kV to 36V 3phase transformer of 
similar size. Maybe one of them will act as charging inductor. I'll have 
to measure their inductance (somehow...) and think about it.





Tesla list wrote:
> ---------- Forwarded message ----------
> Date: Sat, 03 Nov 2007 15:15:00 -0500
> From: Crispy <crispy@xxxxxxxxxxx>
> To: Tesla list <tesla@xxxxxxxxxx>
> Subject: RE: 3 phase pole pig (fwd), Richie's Site back up (fwd)
>
> As far as making the charging inductor, you might want to try a few MOTs
> in series.  I've seen a few setups where that has worked.
>
> Crispy
>
> On Sat, 2007-11-03 at 12:41 -0700, Tesla list wrote:
>   
>> ---------- Forwarded message ----------
>> Date: Fri, 2 Nov 2007 19:30:14 -0700
>> From: Jim Mora <jmora@xxxxxxxxxxx>
>> To: 'Tesla list' <tesla@xxxxxxxxxx>
>> Subject: RE: 3 phase pole pig (fwd), Richie's Site back up (fwd)
>>
>> Hello,
>>
>> My Radar transformer is in one unit and is three phase. Take a looking at
>> Richie's schematic again.  Mine has a 208v wye input. You may want to
read
>> Richie's section on **** DC resonant charging**** as 4-10KV is a bit low.
>> With de-queing diodes the output voltage effectively doubles. Ballast may
>> not be needed if you use an ASRG. If you look at Richie's charging
equations
>> ( the last 2 in the section) the output power increases with the RPM of
the
>> ASRG. A triple stack of variacs (3p) of adequate rating can be used to
ramp
>> up the input voltage but may be not required. You can not run the ASRG
too
>> slow however.
>>
>> Finding a charging inductor or making one will be a challenging project
that
>> we would be interested in, ideas anyone?
>>
>> My Radar PSU has a big one in the tank and outputs 28KVDC with 3p 60hz
>> 208v/y input and (6) 8020 vacuum tubes for the 6 pulse rectification -
quite
>> Frankenstein-ish.
>>
>> Please post a picture of your 3p transformer, it sounds interesting and
>> beast like!
>>
>> Jim Mora 
>>
>> -----Original Message-----
>> From: Tesla list [mailto:tesla@xxxxxxxxxx] 
>> Sent: Friday, November 02, 2007 1:06 PM
>> To: tesla@xxxxxxxxxx
>> Subject: Re: 3 phase pole pig (fwd), Richie's Site back up (fwd)
>>
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