Polyphase Closed-Core Reactors

This paper deals with a class of polyphase reactors made up of groups of interconnected closed-core reactor units, which operate in a predetermined sequence over a cycle. The réactors can be designed to draw nearly sinusoidal current from the line over their operating range. Examples are given of the use of the reactors in a line-voltage regulator and a frequency multiplier and for generating firing pulses for a large ignitron rectifier set.