Trolleybus with a Roof Pantograph
An electric trolleybus features roof-mounted contact poles, a large rectangular windshield, and round front headlights.
A4 format (portrait), black outlines on a white background · for home and classroom use
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An Electric Trolleybus with Roof Poles
Positioned at a slight front angle on a plain background, this electric trolleybus is equipped with roof-mounted trolley poles designed to draw electrical power. The front section exhibits a broad rectangular windshield with a wiper, round headlights, side mirrors, and sturdy wheels.
How Overhead Electrical Lines Power Trolleybuses
Unlike standard battery-electric buses, trolleybuses obtain direct electric current from a pair of overhead wires suspended above the street. Spring-loaded trolley poles mounted on the roof hold graphite contact shoes that slide continuously along the wires as the vehicle drives. If a pole detaches from the overhead wire, modern trolleybuses can use small backup batteries to maneuver back into place.
Colors of Trolleybuses and Electrical Equipment
- Vehicle body: traditional public transit shades such as white and green, red, or dark blue
- Roof pantograph poles: dark gray or black steel rods
- Contact shoes on pole tips: carbon-black graphite blocks
- Round headlights: clear silver glass housings with white bulb light
- Tires and rubber window trim: solid black