Rams Engineer Interview Questions and Answers

A dual converter is a power electronic device used in railway systems to convert AC to DC and vice versa for traction applications.

• Dual converters consist of two converters: one for AC to DC and another for DC to AC.

• They are used in electric locomotives to manage power supply efficiently.

• Example: In regenerative braking, the DC motor acts as a generator, converting kinetic energy back to electrical energy.

• Dual converters help in controlling the speed and torque of the tractio...read more

A traction motor is an electric motor used to provide the motive power for vehicles, especially in rail and electric transport.

• Traction motors convert electrical energy into mechanical energy to drive wheels.

• Commonly used in electric trains, trams, and electric vehicles.

• Types include DC motors, AC induction motors, and synchronous motors.

• Example: The Siemens Velaro uses AC traction motors for high-speed rail.

• Efficiency and torque characteristics are crucial for performance.