Re: The 1500t secondary myth (long)

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Malcolm Watts" <m.j.watts@xxxxxxxxxxxx>

Hi Ed,

On 1 Dec 2004, at 18:17, Tesla list wrote:

> Original poster: Ed Phillips <evp@xxxxxxxxxxx>
>
> "If everything else is the same, the lower frequencies also tend to
> need a higher inductance primary coil which tends to lower primary
> currents which reduces primary losses significantly.  Higher
> inductance primary systems tend to have lower losses in the coil,
> wire, gap, etc."
>
>  I wonder if gap losses also favor the lower operating frequency?
>
> Ed

All things being equal they do. If Cp is held constant, dropping Fr
to half its value => boosting Lp by a factor of 4 (since Fr is
inversely proportional to SQRT(L)) which increases Xp by 2x (as Xp
now becomes = 2.PI.(Fr/2).4L)

Malcolm