1 Scope
This document, which is a product standard, is intended to specify the EMC, performance
and safety requirements of shunt-connected active correction devices (ACD) with rated
system voltages not exceeding 1 000 V AC or 1 500 V DC.
These devices can be either cord or permanently connected. They can be movable, stationary,
or fixed devices.
An ACD includes both a static VAR generator (SVG) and an active harmonic filter (AHF).
The primary function of a shunt connected ACD is to do one or more of the following:
active harmonic filtering;
reactive power compensation;
unbalanced load compensation.
Additional functions of a shunt-connected ACD, not addressed by this document, can
be the following:
flicker compensation;
interharmonic component filtering.
In case of hybrid devices, combining a passive harmonic filter and an ACD, this document
covers only the active part.
This document does not cover