Re: DC charging reactor

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

Original poster: "Daniel Barrett by way of Terry Fritz <twftesla-at-qwest-dot-net>" <dbarrett1-at-austin.rr-dot-com>

    For mine, I used laminations from a MOT. It couldn't hurt to put an RF
choke between the reactor and the primary circuit, but remember the reactor
is doing it's job at your BPS rate. So iron should work fine. YMMV...

    BTW, someone recently posted some information about selecting core size
for a desired KVA rating. The formula relate  "core cross section" to KVA
and the example given was 500kVA = 11 inches. My question is 11" of what?
can someone explain this?
    Sorry I didn't mean to hijack your thread here, it's just sort of on the
same subject (roll your own xfmrs)...

db


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, September 28, 2002 2:53 PM
Subject: DC charging reactor


> Original poster: "Gregory Peters by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <s371034-at-student.uq.edu.au>
>
> Hello all,
>
> Regarding DC power supplies, can the charging reactor utilise an iron
> core? I have been told that an iron core will not sufficiently block
> RF, and that I would need to use ferrite for this purpose. Is this
> true?
>
> Cheers,
>
> Greg.
>
>
>