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Re: MOT Wiring



Original poster: "S&JY" <youngsters@xxxxxxxxxxxxxxx>

Mike,

Definitely hook the center two cores together and ground them.  Then each
half of your MOT string is made up of 3 MOTs in series.  For each string of
3, it is best to disconnect the inner secondary wires from the cores of the
two outer MOTs.  I use 6 1 meg resistors in series across the center MOT.
The center connection of these six resistors goes to the cores of both outer
MOTs.  This puts the cores at roughly 1 KV, which has the effect of somewhat
splitting the electrical stress between the cores and the primary and
secondary windings.  The outer MOTs of course will have the most voltage
stress, and should be immersed in oil.  Better is to immerse all 6 of them
in oil.  For ease of handling and leak-proof containers, I found that ammo
cans make good containers.  I have the two center MOTs in a can, and each
pair of outer MOTs also separate cans.  Of course, the outer pairs of MOT
cores  must be mounted on oil-resistant insulators inside the metal boxes.

Do NOT do your alternate wiring scheme - the MOT insulation is not good
enough to handle the voltage stresses that would result.

Be careful - your MOT 6-pack will be far more lethal than what is used for
electric chairs!
--Steve Y.

----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Sunday, March 05, 2006 7:58 AM
Subject: MOT Wiring


> Original poster: "MIKE HARDY" <MHARDY@xxxxxxxxxx>
>
> I'm putting together a MOT 6 pack.The center xfm'rs will have the
> cores tied together. As I move out from the center the next 2 xfmr's
> will have there lower voltage side be the core. Is it necessary for
> me to remove this HV wire from the core, or can I leave them
> attached? I plan to submerge the whole thing in xfmr oil.
> Or as an alternative wiring scheme, should I think of wiring this
> like a single bushing pig. That is consider one outer xfmr's core as
> ground, and each adjacent xfmr as the next higher voltage unit? I
> hope I'm making myself clear.
>
> As always, THANKS!
>
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