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FW: How should we measure coil efficiency, was neon vs.
From: Malcolm Watts[SMTP:MALCOLM-at-directorate.wnp.ac.nz]
Sent: Wednesday, July 30, 1997 2:48 PM
To: tesla-at-pupman-dot-com
Subject: Re: How should we measure coil efficiency, was neon vs.
Hi John,
Thanks for correcting your original statement.
Malcolm
> From: John H. Couture[SMTP:couturejh-at-worldnet.att-dot-net]
> Sent: Tuesday, July 29, 1997 2:21 PM
> To: Tesla List
> Subject: Re: How should we measure coil efficiency, was neon vs.
>
> At 03:56 AM 7/29/97 +0000, you wrote:
> >
> >From: Malcolm Watts[SMTP:MALCOLM-at-directorate.wnp.ac.nz]
> >Sent: Monday, July 28, 1997 3:57 PM
> >To: tesla-at-pupman-dot-com
> >Subject: Re: How should we measure coil efficiency, was neon vs.
> >
> >I must comment on this statement....
> >
> >> From: John H. Couture[SMTP:couturejh-at-worldnet.att-dot-net]
> >> Sent: Sunday, July 27, 1997 11:47 PM
> >> To: Tesla List
> >> Subject: Re: How should we measure coil efficiency, was neon vs.
> potenti
> >
> ><snip>
> >> It should be noted that a large part of the losses in the TC secondary
> >> circuit are due to the coil self capacitance. This capacitance is a loss
> >> because it shorts out (loads) the sec voltage. The sec coil self capacitance
> >> of a small TC is less than a large coil so this type of loss is less with
> >> the small coil which is operating at higher frequencies.
> >
> >Reactive components are not losses - period. Resistive components are.
> >
> >Malcolm
> ><snip>
> >
> >-----------------------------------------------------------
>
> Malcolm -
>
> That is correct for the normal AC circuit. However, the TC is a dual RCL
> system and changing the coil self capacitance (distributed) of the secondary
> circuit will change the impedance of the circuit. The impedance change also
> changes the effective resistance losses when the frequency is changed.
>
> John Couture