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Pantograph
01
pantógrafo, aparelho de cópia
mechanical device used to copy a figure or plan on a different scale
02
pantógrafo, pantógrafo elétrico
a component of an electric train that connects it to overhead wires for drawing power
What is a "pantograph"?
A pantograph is a device used on electric trains to collect electricity from overhead power lines. It is a lightweight, hinged structure that extends upward from the train to make contact with the wires above. The pantograph slides along the power lines, allowing the train to draw the electricity needed to run the motor. Pantographs are commonly found on high-speed trains or electric locomotives, where they provide a continuous power source while the train is in motion. They are designed to be flexible and can automatically adjust to different heights of power lines.
Example
The pantograph on an electric train extends upwards to make contact with the overhead wires, ensuring continuous power supply.
Engineers design pantographs to withstand varying speeds and weather conditions, maintaining reliable electrical connections.
Train operators regularly monitor the pantograph's position and contact pressure to optimize power transmission.
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