What is a pantograph and why does the MBTA Green Line use them?

A pantograph is the flexible, angled arm on the top of the trolley that connects the train to overhead power lines.

Full rail service resumes after 'pantograph issue' forced switch to shuttle buses for portion of Green Line's C Branch - Boston News, Weather, Sports

What's the deal with the pantographs? : r/mbta

Lego model I designed of the Green Line trains! : r/boston

Open MBTA Green Line Extension to close for month as larger branch hits another delay

Regular service resumes on Green Line Extension after commute disruption

Service resumes after electrical issue strikes Green Line for second day - The Boston Globe

Minor injuries reported after car hits Green Line trolley in Brookline

Power issue halts Green Line service day after track defects revealed - CBS Boston

Shuttles replace Green Line service from Kenmore to Park after overhead wire problem, MBTA says - Boston News, Weather, Sports

What is a pantograph and why does the MBTA Green Line use them?

Riders forced to walk on tracks, take shuttles after electrical problems shut down service on part of Green Line - Boston News, Weather, Sports

MBTA Blue Line

MBTA on X: When OCS issues occur, the pantographs on top of Green Line trains can be chipped or damaged. Following these events, we inspected all the trains involved & fixed any