Automatic phase angle and voltage control

IN THE MARCUS HOOK AREA, a few miles south of Chester, Pa., the Philadelphia Electric Company supplies a large concentration of industrial load, requiring a high degree of service continuity. Heretofore this load has been supplied directly from the Chester Generating Stations by means of 13.8-kv 3-phase underground cable lines. To provide reliable service, many of the customers in this area have been provided with dual service lines, and in most instances the two lines have been operated in parallel.