Electric rail trains operate by using electricity supplied from outside the train to power their motors, enabling movement.
Electric trains get the power they need from an external source located along the track. This source can be either a third rail or an electrical line suspended overhead. The train makes contact with this source to draw electricity.
Powering the Movement
Once the train receives the electricity, it needs to prepare it for use by the motors.
- Voltage Transfer: Transformers are crucial components on the train that transfer the voltage from the electrical lines or third rail. This process ensures the electricity is at the correct voltage for the train's systems.
- Enabling Motors: The electrical current that results from this process is then sent to the motors which are connected to the train's wheels. This current provides the energy necessary for the motors to rotate the wheels.
The Core Process
In essence, the mechanism follows a clear path:
- Electricity Source: Power comes from a third rail or overhead electrical line.
- Voltage Adjustment: Onboard transformers adjust the voltage from the source.
- Current Flow: Electrical current is then directed to the motors.
- Motor Activation: The current activates the motors on the wheels.
- Movement: The spinning motors turn the wheels, moving the train.
This system allows electric trains to run solely on electrical power drawn externally, making them distinct from trains that carry their own power source (like diesel trains).
