What is the Principle of Electric Trams?

1 Answers
AdelynAnn
07/29/25 11:34pm
The electrical energy driving electric trams comes from DC traction substations. It enters the tram body through overhead contact wires installed along the streets and current collectors (trolley poles or pantographs) mounted on the tram roof. The current passes through power switches like air circuit breakers and voltage regulation devices to drive the tram's traction motors, then returns to the traction substation. Below is an extended introduction: Electronic transmission (commonly called e-transmission): This transmission has a "current boosting effect", using "FET tubes" to increase current and enhance speed. Advantages: The greatest advantage of this transmission device is its ability to boost current while maintaining excellent linear current output.
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