The purpose of this document is to provoke some thought on the part of the person(s) responsible for the successful installation of the drive, and to provide some guidelines as to if, where and when a …

Jun 6, 2019 · There are generally two types of line reactors used with VFDs; AC & DC. When a reactor is installed between the power system and the VFD, it is known as an AC line reactor. When a DC …

Jun 12, 2014 · A line reactor (also referred to as a "choke") is a variable frequency drive (VFD) accessory that consists of a coil of wire that forms a magnetic field as current flows through it.

Line reactors help protect VFDs from utility power line disturbances that may cause un-expected tripping or damage to the VFDs. They also help reduce the harmonics that the VFD generates back into the …

Line reactors are used on the input side of VFDs (hence also called input reactors or AC line chokes) to protect the drive from power line disturbances and to reduce the harmonic currents that the drive …

A line reactor is an optional component that can be added to a drive system to protect the VFD and other devices from power surges and transients. A line reactor is essentially an inductor—a coil of …

Oct 15, 2025 · Line Reactors: Function and Applications A line reactor is an inductive device designed to add controlled impedance into a circuit, limiting the rate of current change and smoothing waveform …

KEB input line reactors are used to protect VFDs from voltage spikes and other abnormal power situations. The added inductance increases the VFDs operating lifetime.

Line Reactors are engineered as a first stage to improve power quality issues related to power electronics devices, including AC drives (also known as VFD), UPS, power conversion systems, …

If your input power is prone to having spikes then installing a line reactor will smooth out that spike to help protect your VFD. If you have multiple VFDs connected to the same power source then adding a …