Harmonics from railroad rectifiers on power system reduced by filters

AT THE close of World War II, the Long Island Rail Road Company purchased the electrical equipment at the Aluminum Reduction Plant at Maspeth, N. Y., from the War Assets Administration. Included in this equipment were several 3,000-kw 6-phase 60-cycle mercury arc rectifiers, complete with the component assemblies which the Long Island Rail Road Company proposed to utilize in the expansion and modernization of their railroad electrification facilities on Long Island.