The saturable core reactor is generally is a

The saturable core reactor is generally is a

Right Answer is:

Variable Impedance


  • A saturable core reactor acts as a variable impedance connected in series with a load across an input ac power supply.
  • It looks like a transformer having two windings wound on a core of steel as shown in the figure.
  • One of these windings named control winding (CW) receives a small dc current controlled by a potentiometer and a fixed dc voltage source.
  • This acts as an input bias signal that controls the amount of alternating current that can flow through the other winding, namely the gate winding (GW) and the load in series.
  • The alternating current in the gate winding produces an objectionable ac voltage in the control winding that may disturb the fixed dc bias in it.

Scroll to Top