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RE: Why does running an NST on an async gap kill it?
Original poster: "Zagarus Rashkae by way of Terry Fritz <teslalist-at-qwest-dot-net>" <arbitrarily_random-at-yahoo-dot-com>
Hi Gary, All,
I called it an "R-L-C" filter since the wirewound
power resistors do have significant inductance, and
they do help suppress spikes.
I don't see how resonant rise can possibly destroy the
NST if there are MOVs and a saftey gap.
--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "Lau, Gary by way of Terry Fritz
> <teslalist-at-qwest-dot-net>" <gary.lau-at-hp-dot-com>
> The so-called Terry filter actually has two
> functional components:
> 1) The R-C (not R-C-L) filter forms a low pass
> filter, attenuating high
> 2) The MOV's and safety gap form a clamp to limit
> the maximum voltage to
> the NST.
> The R-C filter alone can't do anything to limit the
> voltage in the event
> that the gap is not firing. The MOV's might help,
> but they're not designed
> to absorb too much energy, and they might burn out.
> Gary Lau
> MA, USA
> -----Original Message-----
> From: Tesla list [mailto:tesla-at-pupman-dot-com]
> Sent: Thursday, August 07, 2003 11:38 AM
> To: tesla-at-pupman-dot-com
> Subject: Why does running an NST on an async gap
> kill it?
> Original poster: "Zagarus Rashkae by way of Terry
> Hi All,
> I think I pretty much phrased the entire question in
> the subject line :)
> Is there anything one can to to protect the NST from
> damage? Wouldn't an RLC filter like a Terry filter
> protect the NST from spikes?
> Chris Lu
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