-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of Bert Hickman
Sent: Tuesday, July 08, 2014 6:17 AM
To: Tesla Coil Mailing List
Subject: Re: [TCML] Was: Raytheon turns ratio too high for sane resonant
charging, Now: more reasonabe 50:1
Hi Jim,
Oops - I just noticed an error in my previous message. The current
output (when using a delta configuration on the secondary) will increase
by Sqrt(3) or 73%, not 58% versus the previous wye configuration. Better
for rapidly (re)charging your tank cap.
Bert
Bert Hickman wrote:
> Hi Jim,
>
> Since you now have access to all the secondary leads, one option would
> be to reconfigure your power supply using the existing wye (or star)
> primary, and convert the secondary to delta configuration. If the
> original wye-connected secondary could deliver 24 kVDC, changing the
> secondary to a delta connection will result in an output that is
> 1/sqrt(3) times the original output, or about 58% of the original
> output. The revised output will be 0.58*24 kV or about 14 kV. You can
> then connect six diode strings to create a FWB DC output. This is now
> in a reasonable voltage range for either direct operation or 2X tank cap
> voltage multiplication using either resonant charging or a
> charge-reversing (Steve Young) gap. This configuration will also provide
> you with 58% higher output current (for the same transformer kVA output).
>
> Bert
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