Re: DC charging reactor

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

Original poster: "Bert Hickman by way of Terry Fritz <twftesla-at-qwest-dot-net>" <bert.hickman-at-aquila-dot-net>

Greg,

Ideally, the charging reactor should not saturate under maximum load and
it should be able to operate with small core losses at a frequency that
that's at least 2X the desired maximum pulse repetition rate. A properly
sized iron core inductor with an air gap in the magnetic path will
usually  do the trick. Standard silicon steel laminations will work
fine. The capability to handle RF transients is more a function of the
winding configuration and insulation than the particular core material
used. The reactor must be capable of withstanding at least 2X (design
for at least 3X) the HV DC supply voltage from terminal to terminal.
Most folks "float" the entire reactor and core on insulators. 

Best regards,

-- Bert --
-- 
Bert Hickman
Stoneridge Engineering
"Electromagically" (TM) Shrunken Coins!
http://www.teslamania-dot-com

Tesla list wrote:
> 
> 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.