Re: MOTs & Thoughts

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

Original poster: "PotLuck by way of Terry Fritz <twftesla-at-qwest-dot-net>" <potluck-at-xmission-dot-com>

Hey all,

Appears to be "OK" to run the MOTs at a lower voltage ~90 vac. This makes
sense. I have a large MOT, the input power to the entire oven was 1.4kw.
Anyway, the cross-section is 2.1" x 1.7".

VA = ( CS / .16)^2

Where CS is cross-section in sq in. of the middle leg of the core.

Comes out to about 500VA. The secondary wire appears to be able to handle
about 400ma by the wire size. Direct voltage measurment at 120vac in is
2050v. So the secondary would probably be able to handle about 1000VA but
the core can't support it even with the shunts removed. The primary may
handle about 8 to 9 amps easily again double the VA of the core.

So since MOTs may be easy to get just add a couple more and run them
undervoltage. <shrug>

Rick W.
SLC