Why does my MOT get so hot when nothing is connected?
I have a rewound MOT (230V input and 9-50V output, different custom windings)
and I'm wondering why the transformer gets so hot when no load is even connected?
Is it normal that MOT's get so hot quickly because the primary impedance is just so low?
and how do they fix this problem when the MOT is still inside the microwave oven?
Because there, it does need to be able to run for hours.
I've read about ballasting the MOT, but I thought that was only for current limiting, when you Are attaching loads on the secondary?