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Re: 180 BPS synch? (fwd)

To: tesla@xxxxxxxxxx
Subject: Re: 180 BPS synch? (fwd)
From: "Tesla list" <tesla@xxxxxxxxxx>
Date: Fri, 13 Jul 2007 22:40:23 -0600 (MDT)
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Resent-date: Fri, 13 Jul 2007 22:40:23 -0600 (MDT)
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---------- Forwarded message ----------
Date: Sat, 14 Jul 2007 00:36:54 -0400
From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: 180 BPS synch? (fwd)

Bart,
     How exactly does your VFD work, is it some kind of PLC controlled 
motor?  I originally intended to build an asynch, with a variable speed 
motor, but my particular motor was not up to the task (it wouldn't keep 
turning when the coil was turned on, I still am not absolutely sure why, I 
have theories though).  It was simply a vacuum cleaner motor attached to a 
dimmer switch, worked great when the power to the tank was turned off, it 
would rotate between about 100 and 15000 RPM.  Your gap sounds like an 
experimenters dream gap!
Scott Bogard.


>From: "Tesla list" <tesla@xxxxxxxxxx>
>To: tesla@xxxxxxxxxx
>Subject: Re: 180 BPS synch? (fwd)
>Date: Fri, 13 Jul 2007 22:19:00 -0600 (MDT)
>
>
>---------- Forwarded message ----------
>Date: Fri, 13 Jul 2007 21:03:03 -0700
>From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Re: 180 BPS synch? (fwd)
>
>Hi Scott,
>
>Your welcome. That's a program the newer coilers probably don't know
>about, but it's been around for a lot of years. There was a time when we
>all talked about this. Probably in the old archives somewhere. I
>personally am a 240 bps guy myself if running in sync.
>
>It's difficult to express why. Part of it is the spark channel building
>upon previous ionized streamers, part of it is the smooth running of the
>gap, and part of it is my previous expeditions of looking at the power
>cycle between the 90 degree voltage and current differentials as I
>compared 120 bps, 240 bps, etc.. However, losses were not considered
>during those simulations, so that is also a factor that has to be at
>least considered. In reality, there's not a lot of difference between
>120 and 240 bps. A simple 8 electrode single gap at 1800 rpm disc speed
>does wonders! Those were things I looked at several years ago. Hard to
>remember the details tonight. I was running sync at that time so this
>info was somewhat important to me.
>
>These days, I'm running VFD variable 3-phase. I love it! Probably won't
>go back to a sync gap simply because I love altering the break rate at
>the twist of my wrist (the sound of the sparks and gap is like revving a
>high performance engine!). Hard to express. When I'm rotating the disc
>fast, bystanders start "standing back" just from the sound. Every coil
>has a particular breakrate that produces a 1)smooth running coil and
>2)long sparks. There's no doubt in my mind about that. I've played
>enough with my VFD to realize that situation is real. Lately, the VFD
>has been my favorite toy. The same could be done with a DC motor of
>course, but with the VFD, I have the same effect with high efficiency
>(plus, I can do sync, preset speeds, or whatever I decide, which is why
>it's a favorite of mine). It's not limited to just one aspect of RSG's.
>
>Take care,
>Bart
>
>Tesla list wrote:
>
> >---------- Forwarded message ----------
> >Date: Fri, 13 Jul 2007 22:56:16 -0400
> >From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
> >To: tesla@xxxxxxxxxx
> >Subject: Re: 180 BPS synch? (fwd)
> >
> >Bart,
> >     Thanks, I see how bad that configuration is, evidently my gut 
>instinct
> >was incorrect.  Thanks for the program, it is very neat, I'm sure it will
> >come in handy.
> >Scott Bogard.
> >
> >
> >
> >
> >>From: "Tesla list" <tesla@xxxxxxxxxx>
> >>To: tesla@xxxxxxxxxx
> >>Subject: Re: 180 BPS synch? (fwd)
> >>Date: Fri, 13 Jul 2007 20:28:54 -0600 (MDT)
> >>
> >>
> >>---------- Forwarded message ----------
> >>Date: Fri, 13 Jul 2007 18:06:50 -0700
> >>From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
> >>To: Tesla list <tesla@xxxxxxxxxx>
> >>Subject: Re: 180 BPS synch? (fwd)
> >>
> >>Hi Scott,
> >>
> >>A 6 electrode 180 Hz firing rate has always been looked at as likely the
> >>worst of all cases. Haven't tried it myself, but there is an old DOS
> >>program (1991) by Robert Jamison you might want to run that looks at
> >>various configurations, and yes, the 6 electrode case is there. It's a
> >>simple .exe file. It's at my web site if you want to download and run.
> >>
> >>http://www.classictesla.com/download/rotjit.zip
> >>
> >>Take care,
> >>Bart
> >>
> >>Tesla list wrote:
> >>
> >>
> >>
> >>>---------- Forwarded message ----------
> >>>Date: Thu, 12 Jul 2007 21:19:19 -0400
> >>>From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
> >>>To: tesla@xxxxxxxxxx
> >>>Subject: RE: 180 BPS synch?
> >>>
> >>>Nobody responded to my message (not even a "yes, it's been done" or a 
>"no
> >>>
> >>>
> >>it
> >>
> >>
> >>>won't work"), so I'm reposting it on the assumption either nobody got 
>it,
> >>>
> >>>
> >>or
> >>
> >>
> >>>nobody took the time to read it and respond, thanks.
> >>>Scott Bogard.
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>>From: "Tesla list" <tesla@xxxxxxxxxx>
> >>>>To: tesla@xxxxxxxxxx
> >>>>Subject: 180 BPS synch? (fwd)
> >>>>Date: Mon, 9 Jul 2007 15:05:02 -0600 (MDT)
> >>>>
> >>>>
> >>>>---------- Forwarded message ----------
> >>>>Date: Mon, 09 Jul 2007 16:31:13 -0400
> >>>>From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
> >>>>To: tesla@xxxxxxxxxx
> >>>>Subject: 180 BPS synch?
> >>>>
> >>>>Greetings all,
> >>>>    I was curious, what would the results be of a synchronous motor
> >>>>
> >>>>
> >>(1800
> >>
> >>
> >>>>rpm) being used with 6 electrodes, for 180 BPS.  My thinking is that 
>the
> >>>>arc
> >>>>put out would be slightly more random due to uneven firing voltages,
> >>>>
> >>>>
> >>like
> >>
> >>
> >>>>an
> >>>>asynch gap, but prevent dangerous resonant rises, due top it's tenancy
> >>>>
> >>>>
> >>to
> >>
> >>
> >>>>inevitably repeat a defined patter over and over again (also different
> >>>>"phasing" may effect output, but I don't think it would ever settle on 
>a
> >>>>phase it cannot operate with, or one that would give optimum power).
> >>>>
> >>>>
> >>Has
> >>
> >>
> >>>>anybody tried this, what do you guys think (I just finished building a
> >>>>120/240 BPS sync, so I don't think I will be building another soon, 
>but
> >>>>maybe somebody else can try it).  Thanks.
> >>>>Scott Bogard.
> >>>>
> >>>>_________________________________________________________________
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> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
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> >
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