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Re: [TCML] NST model

On 2/2/14 1:05 PM, Ronald Reeland wrote:

Carl and Jim: Recheck your math computations. I believe the Transformer impedance is 500,000 ohms or .5 meg-ohms. Then the inductance is 1326 henrys or 1.326 kilo-henry.

Ron




you're right.. I knew that seemed large..

15/30 is 0.5 not 5..

Terry's SPICE model (mentioned in another post) is in the same ballpark..

1-2 kHenry



From: cn8@xxxxxxx
To: tesla@xxxxxxxxxx
Date: Sun, 2 Feb 2014 13:43:20 -0700
Subject: Re: [TCML] NST model

That's a big honkin' inductance, but it makes sense.  I'll try it.

Thanks---

Carl





-----Original Message-----
From: Jim Lux
Sent: Saturday, February 01, 2014 2:24 PM
To: Tesla Coil Mailing List
Subject: [TCML] NST model

The shunt results in large leakage inductance.  Model it as a very large
inductor in series with the secondary.

For instance, if you have a 15kV, 30mA transformer, that implies that
the series impedance of the secondary is 15E3/30E-3 or 5 Megohms.  Using
X = L *2*pi*f At 60 Hz, that's 13kHenry
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