G5/5 regulations bring important changes for VSD installations

摘要

With the exception of the light bulb, virtually every electronic device will generate harmonics of some description. And when we consider non-linear loads such as variable speed drives, the harmonics they generate can be enough to disrupt the operation of other devices connected to the supply. Recognising that there are increasing numbers of non-linear loads looking to be connected, the regulations governing their connection have been updated, with Engineering Recommendation (EREC) G5/5 superceding G5/4 as of June this year.