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RE: NST TEST GRAPHS Attn; Terry
- To: tesla@pupman.com
- Subject: RE: NST TEST GRAPHS Attn; Terry
- From: "Tesla list" <tesla@pupman.com>
- Date: Mon, 20 Jan 2003 10:49:24 -0700
- In-Reply-To: <OF1F7EBF93.8F38A589-ON86256CB4.005AED85@us.ibm.com>
- Resent-Date: Mon, 20 Jan 2003 10:49:37 -0700
- Resent-From: tesla@pupman.com
- Resent-Message-ID: <o_PEZ.A.aFG.uaDL-@poodle>
- Resent-Sender: tesla-request@pupman.com
Original poster: "Terry Fritz" <teslalist@qwest.net>
Hi Daniel,
That is sort of a hard question.
Going from the charts at:
http://hot-streamer.com/TeslaCoils/Misc/NSTStudy/NSTStudy.htm
We see that the actual VA of a transformer can be pretty high. My 15/30
can reach 803VA in a static gap system. 803 VA / 120vac = 6.7 amps.
But in my simple testing, I was using a 4 amps fuse. since I didn't think
it should go over 4 amps.
In a Tesla coil, having PFC caps can make a dramatic difference in current
draw too.
In my coils, I can calculate or model the currents and directly measure
them so I know pretty much what the current should be. But that does not
help most people. I guess I don't have a "good" answer here other than
trail and error :-( I guess, this subject needs more thought...
The fuse is just a standard 1/4 x 1-1/4 "fast blow" fuse like Radio Shack
sells.
Cheers,
Terry
At 10:37 AM 1/20/2003 -0600, you wrote:
>Terry;
>
> >This is why I recommend NST input fuses, in case the darn thing goes
> >nuclear!! There may be modes in which the thing turns into a high-power
> >high-voltage bomb!! Don't want to find out the hard way....
>
>What value fuse do you suggest? Any particular type or style work best in a
>HV enviornment
>
>Regards,
>
>Daniel