[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: 300 bbs



Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>

So NSTs driven at 500BPS have some odd failure =:O

Like to know the value and setup info.  If you still have them, I would be 
happy to have one shipped here to see what broke.

Cheers,

         Terry



At 06:05 PM 2/29/2004, you wrote:

>I'm not sure of the exact failure mechanism, but we had two fail within 10
>minutes even when protected with a Terry filter.  We were testing them at
>500 pps in a worse case scenario..  The same circuit ran for 2.25 hrs
>continuous at 120 pps without any problems on the same model xmfr --- all 3
>used in the test were new units.
>
>Dr. Resonance
>
> >
> > Why would an NST care what the bang-rate is?  What would the failure
> > mechanism be for a too-high bang-rate?  The only failure modes I'm aware
> > of are excessive terminal voltages, caused by mains resonant rise from a
> > too-wide static gap, and _possibly_ NST secondary overcurrent, though
> > this would be difficult to prove.
> >
> > Gary Lau
> > MA, USA