An experimental study on the ampere-turn gain of ordinary saturable reactors

Actual deviations of the ordinary saturable-reactor control characteristic from the ideal 45-degree line have been measured directly by means of a differential-type test circuit, using bifilar saturable-reactor windings, which secure correct turns ratio and eliminate magnetic leakage. Three magnetic-amplifier core materials (Silectron, Orthonol, and Supermalloy) have been investigated in this way, with various values of the effective turns ratio between d-c control windings and a-c load windings.