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A distribution board (also known as panelboard, circuit breaker panel, breaker panel, electric panel, fuse box or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse or circuit breaker for each circuit in a common enclosure.
Pennsylvania Railroad Etc., All lines now 12 kV 25 Hz or 12.5 kV 60 Hz See Railroad electrification in the United States: United States: Washington: Cascade Tunnel: Converted from three-phase 6600 V 25 Hz in 1927, dismantled 1956 United States: Colorado: Denver and Intermountain Railroad: dismantled c. 1953 [35] 12 kV: 16 + 2 ⁄ 3 Hz France ...
Since the 1960s, railroad distributed power technology has been dominated by one company, Harris Controls (originally Harris Corporation — Controls & Composition Division, later purchased by General Electric—the division now known as GE Transportation) who have manufactured and marketed a patented radio-control system with the trade-name of Locotrol, which is the predominant wireless DP ...
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.
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.
DC distribution system (ship propulsion) Dielectric gas; Numerical relay; Distribution board; Distribution network operator; Distribution transformer; Distributor; Dynamic demand (electric power) Dynamic voltage restoration
Operation of the overhead conductor rails at Shaw's Cove Railroad Bridge in Connecticut. In a movable bridge that uses a rigid overhead rail, there is a need to transition from the catenary wire system into an overhead conductor rail at the bridge portal (the last traction current pylon before the movable bridge).
Third-rail electrification systems are, apart from on-board batteries, the oldest means of supplying electric power to trains on railways using their own corridors, particularly in cities. Overhead power supply was initially almost exclusively used on tramway-like railways, though it also appeared slowly on mainline systems.