Safe Harbor-Westport 230-kv transmission line

SAFE HARBOR development will have an ultimate capacity of 510,000 hp, a large portion of which will be available for Baltimore. During certain periods Baltimore will be dependent primarily upon this Safe Harbor power; therefore, reliability of transmission is of the utmost importance. The selection of the operating voltage was made only after a thorough investigation of the relative economic and reliability factors involved, the possibility of future interconnections, and system stability. Studies made in conjunction with the engineers of the Consolidated Gas Electric Light and Power Company of Baltimore covered a comparison of 2 23-kv circuits with 6 110-kv circuits. These studies also included investigation of such problems as terminal location, 2-point versus single-point supply, the use or omission of high voltage buses, and amount of synchronous condenser capacity required. An a-c calculating board was employed to cheqk the results obtained by analytical methods.