Analysis and mitigation of voltage disturbances at an industrial customer´s corporate campus

This paper presents the analysis of voltage sag data collected over several years at an industrial customer´s corporate campus. Facilities on the campus include office buildings, pilot plants, R&D laboratories, chiller plants and boiler plants. The paper examines the “cause and effect” of voltage dips to the processes at the campus. It also details what the utility and the industrial customer did, or is doing, to mitigate additional dips to the campus. The determination of the final configuration of the power distribution system and its effect on the customer´s power quality is also discussed