Re: MOVs as an SG

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Kidd6488-at-aol-dot-com>

Jason, You won't belive it, but I asked that exact same question not too long 
ago. I think we are both about the same spot on the learning curve... 

--------------------------------------- 
Jonathon Reinhart 
hot-streamer-dot-com/jonathon 



In a message dated 7/20/01 06:52:00 PM Eastern Daylight Time, 
tesla-at-pupman-dot-com writes: 


>
> Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net> 
>
> Hi Jason, 
>
> It doesn't work.  The MOVs may conduct when the voltage reaches say 20001 
> volts but they will stop conducting when the voltage reaches 19999 volts. 
> Normal spark gaps start conducting at say 20001 volts and "stay conducting" 
> until the current drops to zero.  So spark gaps stay shorted throughout the 
> firing cycle where MOVs will stop conducting far too soon.   
>
> MOVs are great for draining energy from the system when the voltage gets 
> past a certain level.  But the instant the voltage goes below their rating, 
> they open right back up.  There are some components (sidactors??) that do 
> stay conducting.  Maybe a chance there, but their voltage ratings are not 
> very high. 
>
> Cheers, 
>
>    Terry 
>
> At 10:43 PM 7/20/2001 +0100, you wrote: 
> >Hi all, 
> > 
> >Would it be possible to use a large MOV or MOV bang as a solid state SG? 
> >Just a thought.... I dont wanna try it as they are pretty expensive :) 
> > 
> >Thanks, 
> >Jason 
> > 
>