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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 ...
Checkerboarding in the West occurred as a result of railroad land grants where railroads would be granted every other section along a rail corridor. These grants, which typically extended 6 to 40 miles (10 to 64 km) from either side of the track, [2] were a subsidy to the railroads. Unlike per-mile subsidies which encouraged fast but shoddy ...
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 ...
A separate single-phase power distribution grid makes the recuperation of energy during braking extremely easy in comparison with 25 kV 50 Hz system tied to 3 phase distribution grid. In Sweden, Norway, Mecklenburg-Western Pomerania and Saxony-Anhalt, the power is taken directly from the three-phase grid ( 110 kV at 50 Hz ), converted to low ...
In the United States, railbanking was established in 1983 as an amendment to Section 8(d) of the National Trails System Act. It is a voluntary agreement between a railroad company and a trail sponsor (such as a trail organization or government agency) to use an out-of-service rail corridor as a trail until a railroad might need the corridor again for rail service.
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All over the world, increasing numbers of passenger trains have been developed which travel at ever higher speeds. That trend has made the safety of train couplings increasingly important. Dellner responded to that development in the railroad industry by considering the coupling of a train as a safety-relevant component of the entire train system.