Panel Built Detuning Trays for Fresh Food Factory

Following a review of the load at this large UK food manufacturer, it was found that the standard Power Factor Correction equipment was beginning to elevate low levels of background harmonics above 3% VTHD, causing premature failure of the capacitor banks. Due to space limitations, it was decided to remove all the existing standard PFC components and replace them with our fully detuned 189Hz PN54 Trays.

 

Each tray consists of 1 detuning reactor, a soft switching 415V contactor and a 50kVAr 480V rated capacitor bank. As well as the new tray assemblies, we also upgraded the control relay to the more reliable fully digital Lovato DCRL5 and installed additional forced air ventilation to help keep the reactors cool while under load.

With 2 units being rebuilt the same way, all works were carried out by a single engineer over 2 days without any disruption to the site’s load.