Re: 180 BPS synch? (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- 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.
>>>>
>>>>_________________________________________________________________
>>>>Need a brain boost? Recharge with a stimulating game. Play now!
>>>>http://club.live.com/home.aspx?icid=club_hotmailtextlink1
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>        
>>>>
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>>>      
>>>
>>    
>>
>
>_________________________________________________________________
>Local listings, incredible imagery, and driving directions - all in one 
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