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Re: Neon power draw, and resonant stresses.
From: Mad Coiler[SMTP:tesla_coiler-at-hotmail-dot-com]
Sent: Saturday, August 30, 1997 4:05 PM
To: tesla-at-pupman-dot-com
Subject: Re: Neon power draw, and resonant stresses.
>From: Peter Electric[SMTP:elekessy-at-macquarie.matra-dot-com.au]
>Reply To: elekessy-at-macquarie.matra-dot-com.au
>Sent: Saturday, August 30, 1997 4:36 AM
>To: Tesla List
>Subject: Re: Neon power draw, and resonant stresses.
>
>Tesla List wrote:
>
>> From: FutureT-at-aol-dot-com[SMTP:FutureT-at-aol-dot-com]
>> Sent: Friday, August 29, 1997 4:22 AM
>> To: tesla-at-pupman-dot-com
>> Subject: Re: Re[2]: Neon power draw, and resonant stresses.
>>
>> In a message dated 97-08-28 15:56:55 EDT, you write:
>>
>> <<
>> > John, you have brought up an issue I had asked the list about and
>> never
>> > got a response. You say "If it's value is such that it resonates
>> with
>> > the leakage reactance of the neon trannie..." How is this
>> determined. In
>> > the designing phase how could one determine if this would happen?
>> And
>> > does this stress the neon two much, or is it ok as long as the gap
>> fires
>> > to discharge it?
>>
>> > Still resonating in Ohio,
>> > Mad Coiler
>> > >>
>>
>> Mad,
>>
>> I'm unable to find the formula, I was hoping someone would re-post
>> it for you again. "does it stress the neon too much?"... depends on
>> what you mean by too much. Certainly, it stresses it more than
>> without resonant charging. Yes, by limiting the gap spacing, you can
>> limit the voltage across the trannie, and still obtain the benefit of
>> the increased current draw. None of my neons have yet burned,
>> and I've been using this resonant method for years.
>> (I did burn out a couple of neons...but that was when I used a
>> non-sync rotary gap!)
>>
>> John Freau
>
>I believe the formula is C=1/2*PI*F*R
>where R=V/I
>
>For a 15Kv 60Ma, R=250000 and if F is 60Hz, C=.01uF
>
>Cheers,
>
>Peter E.
>
>
Peter, what is R? Is it the internal dc resistance of the NST's
secondary winding? If so then I would have to 1/R=1/R2+1/R3 etc. to get
R when using several units? I will most likely be using a few 12kV 60mA
units. I have 3 of these plus two 30mA units. I would be using my 15kV
units but I ordered plastic for my cap befor I got them and dont want to
apply that much voltage.
Danger! 250,000 Ohms!
Mad Coiler