Chokes according to EN 61558-2-20

Chokes are resistors with a high inductive and small ohmic component.

For example, you will find application as

Line choke:
Limitation of the short-circuit current or starting current to a specified value. Damping of harmonics or interference voltage.

Smoothing reactor:
Reduction of the ripple or extension of the current flow duration with pulsating direct current.

Commutation reactor:
Reduction of the steepness of the current rise and thus limitation of the peak currents during commutation.

Filter circuit choke:
Protection of compensation systems against impermissible harmonics.