Hi Arwin,
you can series two of them to make one center tapped
transformer, but no more than 2. To do this connect the bottom ends of their
secondaries, the ends connected to the core, together. Now wire their
primaries up in anti-phase you will have a 17.5kV 700ma transformer running
within its design insulation and power ratings.
At 12.25kW that is one bigggg psu, so what are you gonna build with it ?
Green with Envy (or is that the corona)
Nick Field