Three-phase x-ray generator

an X ray generator using a 3-phase alternating current (AC) line source, i.e. three wires, each with a single phase AC that is one third cycle (120) out of phase with the other two (Fig.1). The three-phase transformer used in this generator has three sets of primary windings and three sets of secondary windings, i.e. in effect three separate high-voltage interconnected transformers. The three primary and secondary windings are connected either in a wye configuration or a delta configuration. In the three-phase six-pulse generator, rectifiers in the high-voltage circuit produce two pulses for each line, resulting in a total of six pulses. In the three-phase twelve-pulse generator, a different configuration of transformers and rectifiers results in a total of twelve pulses per cycle. These generators have very low ripple factor.

HJS