Installation of 2 Revcon 200A Active harmonic filters in central London

We were contacted to investigate the increasing harmonic distortion at a large office building in the centre of London, following sites ongoing modernisation plan. After carrying out a week-long Power Quality Analysis, we noticed that while a lot of distortion was coming directly from the grid, site use of Variable speed drives and ongoing LED lighting upgrades were now causing this distortion to exceed the G5/5 design limits.

From this report, we recommend that the existing power factor correction equipment be decommissioned and disconnected. Following this, all of the power factor and harmonic correction requirements of Tx1 & Tx2 main LV supplies could then be provided by a 200Amp Active Power Quality Filter (APQF) connected to each supply and located in the space currently occupied by the power factor correction units. The existing PFC supply MCCB’s and connection cables can then be reused to supply the proposed APQF systems.

 

Installation was carried out over 3 days, including a full commissioning.