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Amtrak Avelia Liberty trainset operating under the 25 Hz traction power system near Claymont, Delaware. Amtrak's 25 Hz traction power system is a traction power network for the southern portion of the Northeast Corridor (NEC), the Keystone Corridor, and several branch lines between New York City and Washington D.C.
This is a list of the power supply systems that are, or have been, used for railway electrification. Note that the voltages are nominal and vary depending on load and distance from the substation. As of 2023 many trams and trains use on-board solid-state electronics to convert these supplies to run three-phase AC traction motors.
In February 2024 the cable suffered an outage after a minor fire in a switching station in Revsing, Denmark. [24] From its commencement of commercial operation on 29 December 2023 until the end of Q1 2024 Viking Link transmitted 1733 GWh, for a capacity factor of 55%. The transmission was from Denmark to the UK 80% of the time. [25] [26]
Railway electrification is the development of powering trains and locomotives using electricity instead of diesel or steam power.The history of railway electrification dates back to the late 19th century when the first electric tramways were introduced in cities like Berlin, London, and New York City.
The Hudson Line is used by Amtrak for intercity passenger service to and via Albany, but these trains run to Penn Station via the Empire Connector, and only in the underground area in and near that station do Amtrak's dual-mode (diesel and electric) locomotives shift to using the overrunning DC third rail.
The Western Interconnection is the other major alternating current (AC) power grid in North America. All of the electric utilities in the Western Interconnection are electrically tied together during normal system conditions and operate at a synchronized frequency of 60 Hz.
Denmark has railway connections to Sweden and Germany, both of which use the same rail gauge as in Denmark. The electric voltage is different as Sweden and Germany use 15 kV AC while Denmark uses 25 kV AC. The train protection systems are also different between all three countries.
In rail transport, head-end power (HEP), also known as electric train supply (ETS), is the electrical power distribution system on a passenger train. The power source, usually a locomotive (or a generator car) at the front or 'head' of a train, provides the electricity used for heating, lighting, electrical and other 'hotel' needs.