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Registered Member #1403
Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
I talked this over with a colleague and we are not sure if it will work, as we have no spare frequency inverter we would risk to loose, so until we find one, here is what we have thought about.
Instead of using a variac to adjust the voltage on 3 MOTs, we could wire them as a motor in star connection, 400V supply to 230V MOTs, and run them through a 3 phased frequency inverter, and having the secondaries in series we could have a 0-6000 volt power supply.
But will 3 transformers despite their similarities to a 3phased motor be able to be driven this way?
Registered Member #1232
Joined: Wed Jan 16 2008, 10:53PM
Location: Doon tha Toon!
Posts: 881
At most a 3-phase inverter will usually let you set the output voltage about 10% more than the input voltage. Since MOTs are already on the brink of saturation you'd probably want to increase the operating frequency slightly too.
It might make a decent HVDC supply if you already have the 3-phase inverter and 3 identical MOTs handy, but not worth the effort if you haven't.
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Frequency inverter running 3 MOTs?
