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A current collector (often called a "pickup") is a device used in trolleybuses, trams, electric locomotives and EMUs to carry electric power from overhead lines, electric third rails, or ground-level power supplies to the electrical equipment of the vehicles.
Washington, D.C., had a large network of conduit lines to avoid wires, as required by an 1889 law. Some lines used overhead wires when they approached rural or suburban areas. The last such line ran to Cabin John, Maryland. The current collector "plow" was mounted underneath the car on a fitting just forward of the rear truck on PCC streetcars ...
It is a type of current collector. The use of overhead wire in a system of current collection is reputed to be the 1880 invention of Frank J. Sprague, [1] but the first working trolley pole was developed and demonstrated by Charles Van Depoele, in autumn 1885. [2] Machining spare trolley pole wheels
The electric transmission system for modern electric rail systems consists of an upper, weight-carrying wire (known as a catenary) from which is suspended a contact wire. The pantograph is spring-loaded and pushes a contact shoe up against the underside of the contact wire to draw the current needed to run the train.
The auxiliary wire can be of a more conductive but less wear-resistant metal, increasing transmission efficiency. Earlier dropper wires provided physical support of the contact wire without joining the catenary and contact wires electrically. Modern systems use current-carrying droppers, eliminating the need for separate wires.
Seville Tram equipped with CAF ACR ground-level power supply, 2019. Ground-level power supply, also known as surface current collection or, in French, alimentation par le sol ("feeding via the ground"), is a concept and group of technologies that enable electric vehicles to collect electric power at ground level instead of the more common overhead lines.
Business leaders warn of risks from inflationary tariffs and potential budget cuts at Goldman Sachs' Industrial and Materials conference.
The first bow collector was designed by the German engineer Walter Reichel in 1889 and shown at the World Expo in Paris the same year. [1] Reichel worked closely with Ernst Werner von Siemens, and with Siemens being a dominating force in the development of tramways in Europe, the bow collector quickly became the standard solution on the continent for collecting current.