Re: Arc distance was MMC or Maxwell? Which is better?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Virtualgod" <mike.marcum-at-zoomtown-dot-com> 

If it jumps 12"-14", it's probably a 110-138kV one. I once saw a show on the
Discovery channel a few years back where linemen had to rescue some dumb kid
that climbed a 500kV transmission tower (ended up sitting right in the
middle of the insulators), where the minimum safe distance (before the
rescuers were glowing with corona and about to be in the middle of the
mother of all flashovers) was mentioned as 11 feet 3". Is there a chart
somewhere that gives ac arc distances vs. rms voltage? Found a few dc ones,
but no ac.
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, February 28, 2004 12:23 PM
Subject: Re: MMC or Maxwell? Which is better?


 > Original poster: Kreso Bukvic <kreso.bukvic-at-kc.htnet.hr>
 >
 > Thanks Terry! Yep i have a lot of strong transformers from small nst-s to
a
 > PT that spits around 500 kV? ( arc STARTS at 30 - 35 cm and can be bulled
 > verry long ). Luckily i have a big current instalation in my house
 > ----- Original Message -----
 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > To: <tesla-at-pupman-dot-com>
 > Sent: Saturday, February 28, 2004 12:16 AM
 > Subject: Re: MMC or Maxwell? Which is better?
 >
 >
 >  > Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>
 >  >
 >  > Hi Ken,
 >  >
 >  > I am not going to convince you am I ;-))  But no problem...
 >  >
 >  > In the case of Kreso's coil, it appears he is running full all out
 > resonant
 >  > rise on the primary which explains why his caps are dying.  He must
have
 >  > some very strong transformers!!!  So it appears he just needs super
high
 >  > voltage caps to solve his problem.  I don't know if he will use
Maxwells
 > or
 >  > MMCs, but now that we know what is going on, the solution is obvious...
 >  >
 >  > Cheers,
 >  >
 >  >          Terry
 >  >
 >  >
 >  > At 03:46 PM 2/27/2004, you wrote:
 >  > >Here is my main point.
 >  > >
 >  > >If you are not pushing the limits of the materials used, you don't
need
 > to
 >  > >rely on self healing. The capacitor degrades as it "heals". My vacuum
 > pump
 >  > >doesn't have a self unbending shaft, it's thick enough where it will
 > never
 >  > >bend in the first place. I don't use asbestos fire resistant power
cords,
 > I
 >  > >size them to never catch on fire in the first place.
 >  > >
 >  > >----- Original Message -----
 >  > >From: "Tesla list" <tesla-at-pupman-dot-com>
 >  > >To: <tesla-at-pupman-dot-com>
 >  > >Sent: Thursday, February 26, 2004 9:00 PM
 >  > >Subject: Re: MMC or Maxwell? Which is better?
 >  > >
 >  > >
 >  > > > Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>
 >  > > >
 >  > > > Hi Ken,
 >  > > >
 >  > > >
 >  > > > >If I set out to collect flowers, I'd have a large collection as
well.
 > I'd
 >  > > > >bet a large number of the 50 aren't true RF duty rated caps, and
 > would
 >  > >have
 >  > > > >failed because of improper use. I can take the best 12 vold light
 > bulb,
 >  > >and
 >  > > > >it's going to fail if I plug it in an outlet.
 >  > > > >
 >  > > > >KEN
 >  > > >
 >  > > > One other thing about MMCs ;-))  They were designed from the ground
up
 > for
 >  > > > "Tesla coils".  So all the fudge factors and over design was
directed
 >  > > > toward the common mistakes and mishaps "coilers" make.
 >  > >
 >  > >Wrong. I don't see "designed for tesla coil use" in the cornell
dublier
 >  > >catalog anywhere.
 >  > >
 >  > > > The huge over voltage and self healing features are the biggest
 > advantage
 >  > snip...
 >  >
 >  >
 >
 >
 >