Hello,
I would like advice from anyone who has sold / installed a small passive harmonic filter. I am proposing this to be installed to a 100A PDU feed sub-sub-panel. This is the only "noisy" sub-panel for a MGE Epsilon PDU. I've specified and installed AHF filters in front of UPS's and MCC's, but cost and harmonic values rule out bigger units. One device I am looking at is a Mini-Z zero sequence filter made by PQI (Power Quality International). Any experience with these?
