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Re: NST frequency



Original poster: "Kevin Ottalini by way of Terry Fritz <twftesla-at-qwest-dot-net>" <ottalini-at-mindspring-dot-com>

Darin:
        The number of stages should not directly affect the inverter except
under load. I'm guessing that you actually overvoltaged something.

What exactly did you use for the caps and diodes in the Cockroft?

You should also monitor the input current to the inverter.  If the current
goes
up when you add the Cockroft on then you have some sort of short or
breakdown happening (I expect a little increase).  Make sure the HV output
from the Cockroft is isolated (no load) during the test.

You shouldn't hear (or see) any corona (crackling) when the unit is
running.  If you do, than you have an isolation and leakage problem
that needs to be fixed before anything else can happen.  You may
actually be trying to generate too much voltage ... 9kv to 15kv DC
is all that you need for a DCTC.

Without knowing exactly the voltage and frequency of the inverter, it will
be difficult to calculate what the Cockroft will do, but if you supply the
diode and capacitor values you used (value and voltage and type) I can
give you an approximate idea of what is happening.

Kevin


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, August 01, 2001 3:23 PM
Subject: Re: NST frequency


> Original poster: "Darin Willson by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <darinwil-at-execpc-dot-com>
>
> Thanks for the info, I have built an Cockroft it is 3 stages. I dont know
> how much it puts out but If I go for 4 stages
> the dead short protection for the inverter kicks in when I discharge it
and
> I have to disconnect the power for 10secs
> before it will reset. Any one know where I can find equations for a
> Cockroft so I can figure out what I am getting so far?
>