The saturable reactor

A satubable reactor is a choke in which the inductance can be infinitely varied by means of D.C. ampereturns. Such a device is by no means new, but the very rapid increase in the number of applications, especially in Germany, Sweden and U.S.A., shows that an understanding of the principles and application of the circuit element must soon be more widely known. An alternative name which is being increasingly used is that of transductor, and still another title is magnetic amplifier. Boughly, the field of application can be divided into two kinds: (a) Applications where the saturable reactor is primarily a device for the control of power, and (b) Where power amplification of low energy input is the required function.