Re: Rotary GAP

• To: tesla-at-pupman-dot-com
• Subject: Re: Rotary GAP
• From: FutureT-at-aol-dot-com (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Tue, 24 Aug 1999 12:19:37 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

In a message dated 99-08-24 06:34:36 EDT, you write:

<< Original Poster: ARSONIST01-at-aol-dot-com 
 
> HI all,
>     I've read many postings lately about Rotary Gaps. Everyone says that 
you 
> need to use a Sync motor or something. What does Sync mean? and why do you 
> need to use one like that?
> thanks
> alan
  >>

Alan,  

Sync = synchronous.  this means the motor RPM is an exact multiple
of the line frequency, and the gap firings will always occur at the same
spot/spots on the input power sine wave.  For instance 3600 RPM or 
1800 RPM is sync, 1725 RPM is not.  A rotary does not have to be 
sync, but sync is better in certain cases.  THis has all been
explained in great detail over the last few months and years on 
this list.  It's all in the archives.  

John Freau

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