Re: MOTs and ballasting

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

Original poster: "colin.heath4 by way of Terry Fritz <teslalist-at-qwest-dot-net>" <colin.heath4-at-ntlworld-dot-com>

hi steve,
             i didnt know that, thanks.i would be inclined to use external
ballast also due to setting up the charging circuit frequency to get max
perfomance
cheers
colin

----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, April 21, 2003 3:18 PM
Subject: Re: MOTs and ballasting


 > Original poster: "S & J Young by way of Terry Fritz <teslalist-at-qwest-dot-net>"
<youngs-at-konnections-dot-net>
 >
 > Colin & company,
 >
 > Your response below is just half the story.  Yes, MOTs have shunts for a
 > little bit of ballasting.  But MOTs rely on the about 1 mF capacitor in
the
 > doubler to provide the rest of the current limiting.
 >
 > If one only relies on MOT shunts for current limiting, the current most
 > likely will greatly exceed what the primary can safely handle without
severe
 > overheating.  External ballast is usually required with MOTs.
 > --Steve Young
 >
 > ----- Original Message -----
 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > To: <tesla-at-pupman-dot-com>
 > Sent: Sunday, April 20, 2003 5:17 PM
 > Subject: Re: MOTs and ballasting
 >
 >
 >  > Original poster: "colin.heath4 by way of Terry Fritz
 > <teslalist-at-qwest-dot-net>" <colin.heath4-at-ntlworld-dot-com>
 >  >
 >  > hi there,
 >  >              mots are ballasted just the same as nst's they use shunts.
 >  > they are not ballasted so low as nst,s but will stop at a set current
 > draw.
 >  > cheers
 >  > colin
 >  >
 >  >
 >  > ----- Original Message -----
 >  > From: Tesla list <tesla-at-pupman-dot-com>
 >  > To: <tesla-at-pupman-dot-com>
 >  > Sent: Sunday, April 20, 2003 2:25 AM
 >  > Subject: Re: MOTs and ballasting
 >  >
 >  >
 >  >  > Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>"
 >  > <Tesla729-at-cs-dot-com>
 >  >  >
 >  >  > In a message dated 4/19/03 8:18:51 AM Pacific Daylight Time,
 >  >  > tesla-at-pupman-dot-com writes:
 >  >  > >Just a thought,  MOTs themselves are current limited to some degree
by
 >  > the
 >  >  > >shunts in them.  Do you suppose that we could run without a
ballast,
 > and
 >  >  > >get whatever the MOTS will dish out (probably no more than 6kva)?
 >  >  >
 >  >  >
 >  >  > Hi Steve,
 >  >  >
 >  >  > You can run the MOTs unballasted externally but only if you submerge
 > them
 >  >  > in oil, otherwise they'll overheat and burn up fairly quickly. As
you
 >  > said,
 >  >  > they
 >  >  > are somewhat internally ballasted theirselves but not like an NST or
 > OBIT.
 >  >  >
 >  >  > < Im looking forward to some 10-12 footers ;)
 >  >  >
 >  >  > < Steve Ward.
 >  >  >
 >  >  >  >From what others are claiming, you may be able to obtain that,
though
 >  >  > I would personally opt for the "6 pack" MOT  (that's 6 MOT's in
series)
 >  >  > if my spark length aspirations were that high.
 >  >  >
 >  >  > Sparking in Memphis,
 >  >  > David Rieben
 >  >  >
 >  >  >
 >  >  >
 >  >
 >  >
 >  >
 >
 >
 >