Abridgment of Conowingo hydroelectric project of the Philadelphia electric company system with particular reference to interconnection

This paper discusses the interconnection between three of the leading power supply company´s in the eastern part of the country, the Philadelphia Electric Co., the Pennsylvania Power & Light Co. and the Public Service Electric & Gas Co. It outlines the physical aspects of the tie-in between the companies which is a 220-kv. ring of high-load capacity, triangular in shape with sides respectively 49 mi., 82 mi., and 77 mi. long. The advantages of the interconnection are enumerated as well as some of the operating problems. Preliminary to the discussion of the interconnection the paper discusses the Conowingo hydroelectric project, an important factor in the interconnection scheme. The plant has an initial installation of 280,000 kv-a. in generators.