Case Study – Virginia Pump Stations

Problem

Renovation of two pump stations in Virginia that required harmonic mitigation to meet IEEE-519 requirements. One pump station had four 125 HP variable frequency drives and pumps, and a second pump station had four 350 HP drives and pumps. Both pump stations easily exceeded IEEE requirements for allowable harmonic distortion.

Solution

The owner preferred a drive-applied harmonic solution for each station. TCI HGP passive harmonic filters were applied to each drive, reducing total harmonic distortion to less than 5% TDD. The HGP can maintain 5% all the way down to 50% load, if necessary.