Re: Sync vs. async - was Re: [TCML] 3 phase sync.

[Kevin Eldredge <oklahomacoiler@xxxxxxxxx>]

David

 This coil has run sync. from day one which was 1999.  At first I tried 240
BPS, but power consumption was huge and only got 14 foot sparks. I went to
120 BPS and its been happy every since.  The cap is .173 uF Maxwell (two
.346 uF in series) since the beginning also.  It would probably run ok at
higher break rate with smaller cap. but its proven to be very reliable in
its present configuration which is what I want. Looking at an upgraded
toroid this summer though.

Kevin E.

On Tue, Feb 7, 2012 at 10:32 AM, drieben <drieben@xxxxxxx> wrote:

> Hi Kevin,
>
>  From looking at the more recent videos of
>>
> your magnificent super sized coil, it appears
> (sounds) that you have been running sync for a while. I was just
> wondering, wasn't the Biggg
> coil originally running async? And if so, when did you change over to sync
> and when going
> sync, did you keep the same sized original pri-
> mary tank C? Seems like your original primary C was ~ .176 uFd? I've come
> to realize that most high powered SG coil systems get by with a relative-
> ly small tank C because of the higher-than-mains-
> frequency break rate often emplyed in async rotory SG systems that allows
> more shots per second, at a given voltage. It would appear that to keep a
> comparable power throughput, one would have to resort to a proportionately
> larger tank C,
> or increase the voltage, when cutting the break rate from the several
> hundred bps usually employed in async
> driven systems to the 120 bps that would run sync to a 60 hz mains.?
>
> David Rieben
>
>
>
> ----- Original Message ----- From: "Kevin Eldredge" <
> oklahomacoiler@xxxxxxxxx>
> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> Sent: Monday, February 06, 2012 8:42 PM
> Subject: [Bulk] Re: [TCML] 3 phase sync.
>
>
>  Thanks all for the responses.  I was thinking of modifying my 7 1/2 HP
>> dynamic 3 phase converter to sync. and replace my
>> Biggg Tesla coils single phase sync. gap motor with a 3 HP sync. 3 phase
>> motor. Just an idea.
>>
>> Kevin E.
>>
>>
> ______________________________**_________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/**listinfo/tesla<http://www.pupman.com/mailman/listinfo/tesla>
>
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla