Voltech AT3600 User Manual page 15

Primaries in Parallel, Secondaries in series
3 off 110 – 230 transformers were used.
The 3 x 110 V Primaries are in parallel, so that the input voltage would be comfortably above 50V, and with
110V max
The 3 x 230 V secondaries are in series – giving 690V output
This can be considered (and programmed into the editor as "At output + Transformer") as a 110 – 690 V
transformer with a gain of roughly 6.3
Each Transformer is 15 VA rated, so the whole step up is 45VA rated, so good for about 65 mA
V AC I U M 98-072 7 15
OLTECH NTERFACE SER ANUAL ISS PAGE