Amtrak's 60 Hz traction power system

Amtrak’s 60 Hz traction power system operates along the Northeast Corridor between New Haven, Connecticut, and Boston, Massachusetts. This system was built by Amtrak in the late 1990s and supplies locomotives with power from an overhead catenary system at 25 kV alternating current with at 60 Hz, the standard frequency in North America. The system is also known as the Northend Electrification, in contrast to Amtrak's 25 Hz traction power system that runs between New York City and Washington, D.C., which is known as the Southend Electrification system.