Re: inductor current limiting for MOTs

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "colin.heath4 by way of Terry Fritz <twftesla-at-qwest-dot-net>" <colin.heath4-at-ntlworld-dot-com>

hi
    the formulas are as follows 2*PI*F*L this will give you your impedance
(Z)
Then take your mains voltage and divide by the impedance this will then give
you your mains current draw.
the best core to use is an EI core similar to that of your mots then place
an air gap between the E & I
The choke would be used before the mots for primary side ballasting which is
the best way to go as what you do to the primary side is reflected in the
secondary side anyway
cheers
colin heath
----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, July 08, 2002 3:16 PM
Subject: inductor current limiting for MOTs


> Original poster: "Laurence Davis by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <meknar-at-hotmail-dot-com>
>
> I've gathered a few MOTs and realized that I have to current limit
> them.  I want to build a small static gap coil with 1 or 2 of them.
> Some of the people running MOTs have used inductive current limiting.
> However I don't know the equations for calculating the
> inductance required.  can someone point me towards the equations?
> What shape of core should i use for the choke;
> cylindrical or toroidal?  And to choose the material... I'm assuming the
> current limiter would be placed before the chokes limiting the feedback
> of the high frequency from the primary tank circuit.  Therefore the
> frequency would be 60hz.
>
> thanks, larry d.
>
>
>
>