Upgrade of Septa's Regional Rall Power System

摘要

The Southeastern Pennsylvania Transportation Authority (SEPTA) operates a rapid transit system of commuter lines in the Philadelphia metopo9litan area. The system, known as the Regional Rail Lines, conists of routes formerly owned y the Reading and Pennsylvania Railroads. The former Rading system is upplied with traction power from SEPTA's own substation at Wayne Junction (W.J) and the former Pennsylvania system is supplied by Amtrak's traction power system. Since the traction powe supply networks are of different types and operate independently, they need to be sepaated by phase breaks in the overhead power distribution system. The tracks of both systems are joined through the Center City Commuter Connection (CCCC) enabling trains to operate from one system to another.