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An Alexanderson alternator is a rotating machine, developed by Ernst Alexanderson beginning in 1904, for the generation of high-frequency alternating current for use as a radio transmitter. It was one of the first devices capable of generating the continuous radio waves needed for transmission of amplitude modulated (AM) signals by radio.
The DE2500 featured a light-weight and completely modular construction, which allowed the quick and easy exchange of whole sections of the locomotive, such as the prime mover, generator or alternator sections. It was both capable of driving on Co'Co' bogies (002, 004) as well as Bo'Bo' bogies (003).
An alternator that uses a permanent magnet for its magnetic field is called a magneto. Alternators in power stations driven by steam turbines are called turbo-alternators. Large 50 or 60 Hz three-phase alternators in power plants generate most of the world's electric power, which is distributed by electric power grids. [4]
DB 240 003-4 at Niebüll station in 1990. In the late 1980s, at its own expense, MaK built three new prototypes designated as the DE 1024.They were designed as a universal high powered locomotive, capable of hauling both freight and passenger trains, for use on the non-electrified parts of the German rail network - which at that time included much of northern Germany.
Analogous ratios for output ripple current may also be computed. An electronic filter with high impedance at the ripple frequency may be used to reduce ripple voltage and increase or decrease DC output; such a filter is often called a smoothing filter. The initial step in AC to DC conversion is to send the AC current through a rectifier. The ...
High-efficiency all-electric refrigerant compressors for air conditioning are starting to be used, especially in hybrid or all-electric vehicles. The cigarette lighter receptacle serves as a de facto standard for use of portable 12 volt equipment in or near an automobile, it is sometimes used with car charger to power devices with batteries.
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