抄録
A phase alternative type control transformer is similar to an induction regulator, but the former is controlled by D-C signal and has no moving part. It is composed of four magnetic circuits with three windings on each. These windings are primary, secondary and control windings. Primary windings are connected in series in the same polarity and are supplied by an A-C voltage source. Secondary windings are connected in series, too, but a half of them is in the contrary polarity and is connected to the load. Each two control windings are connected in series and are supplied by D-C control signal source. Load terminal A-C voltage is controlled by D-C control signal value and its phase is determined by D-C control signal polarity. Its analysis and experiments are given in this paper.
