# Re: ballast

```Original poster: "Hans Scholze by way of Terry Fritz <twftesla-at-uswest-dot-net>" <hanscs-at-eagle.ptialaska-dot-net>

Max,

I don't have any experience with ballasting, but I would think that the
frequency would be either 50 or 60 depending on where you live.  Does 6
sound like a more reasonable answer?

Hans

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, February 21, 2001 6:03 PM
Subject: ballast

> Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<Gbjsjg-at-aol-dot-com>
>
> My Power Transformer is 14400kv and .5 amps. I figured out that that ist
has
> 2 ohms of reactance. The equation calculate the inductance to limit the
> current is not coming out right.
>
> R= 2ohms of reactance
> F= 500 cycles (right)
> pie= 3.14159
> L= x inductance
>
> L= R*1000
>      2pie*F
>
> So my equation would be-
>
> L=      2*1000
>     2*3.14159*500
>
> Its coming out to a wierd number like .4 something at 120 volts. Any help
on
> the mh I will need to limit my current? Also does anyone know what I
should
> use to limit the current?
>                                                             -Thanks Max
Joseph
>
>
>
>

```