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Re: Ganging MOT's w/ Voltage doubler(s)
Original poster: "tesla by way of Terry Fritz <twftesla-at-uswest-dot-net>" <tesla-at-paradise-dot-net.nz>
Tried the 4 MOT ganged supply into the voltage doubling arrangement. This is
9kvrms (4.5 either side of centre) Pulsed DC of about 20kv or so.
This arrangement worked well but needed to use SRSG to keep the mains
current to managable levels (ie less than 20amps) With a static gap coil
worked hard but mains current went sky high.
Needed to put "outer" MOTS in oil to keep insulation to core adequate.
Next trick is to add a further MOT to make a total of 6 secondaries ( 3 per
side).Will mention results on the list soon. Careful selection of MOTS for
those with greatest secondary to core clearance was used.
Also found it useful to use PFC and did not remove magnetic shunts in the
MOTS to assist in keeping currents to manageable levels. Used a little
external inductive ballasting also.
----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
Sent: Saturday, April 14, 2001 12:25 PM
Subject: Ganging MOT's w/ Voltage doubler(s)
> Original poster: "Erik Byng by way of Terry Fritz <twftesla-at-uswest-dot-net>"
> Hello again.
> How would one gang together MOT's using a voltage doubler, keeping the
> down somewhat and enough "kick" for a TC??
> I've got 4 or 5 to play with (got em free! free is good...) so I can
> to screw up once or twice, but I'd like to avoid that sort of thing......
> For instance, would they have to be potted into a true trans oil, or would
> good old recycled NST tar work??