Alstom

Company context

Alstom is a global leader in the transportation sector, particularly known for its work in rail transport and infrastructure. Electrical Engineering graduates may find opportunities in areas such as the design and development of electric trains, signaling systems, and power supply solutions for rail networks. The company focuses on sustainable and smart mobility solutions, which involve advanced electrical systems and technologies.

Selection preparation

Check the specific role’s official posting and recruiter instructions for eligibility and selection stages. Technical discussion, project explanation, aptitude and behavioral practice may be useful, but this guide does not verify a fixed sequence of company interview rounds.

What to revise

• Electric Circuits (whole subject)
• Electromagnetic Fields (whole subject)
• Signals & Systems (whole subject)
• Electrical Machines (whole subject)
• Power Systems (whole subject)
• Control Systems (whole subject)
• Measurements (whole subject)
• Analog & Digital Electronics (whole subject)
• Power Electronics (whole subject)

Original practice questions

These are preparation examples, not questions attributed to this employer.

1. What is the principle of operation of an electric train? Electric trains operate on the principle of converting electrical energy into mechanical energy using electric motors. The power is supplied through overhead lines or a third rail, and the motors drive the train's wheels.

2. How do signaling systems in railways work? Signaling systems ensure the safe and efficient movement of trains by controlling train traffic. They use a combination of track circuits, signals, and communication systems to manage train routes and prevent collisions.

3. Explain the role of power electronics in rail transport. Power electronics are crucial in rail transport for controlling and converting electrical power efficiently. They are used in traction systems, auxiliary power supplies, and regenerative braking systems.

4. What are the challenges in designing power supply systems for rail networks? Designing power supply systems for rail networks involves challenges such as ensuring reliability, managing load variations, and integrating renewable energy sources while maintaining safety standards.

5. Describe the function of a transformer in an electrical system. A transformer is used to change the voltage level in an electrical system, either stepping it up or down, to facilitate efficient power transmission and distribution.

6. What is regenerative braking and how is it used in trains? Regenerative braking is a method of braking in which the kinetic energy of the train is converted back into electrical energy, which can be returned to a receptive supply system, used by other loads or stored when suitable storage exists. When energy cannot be accepted, other braking methods are needed.

Before the interview

• Review your academic projects and internships, focusing on those related to transportation or electrical systems.
• Read about Alstom's recent projects and innovations in sustainable mobility solutions.
• Understand the company's values and culture to prepare for HR discussions.
• Practice explaining complex technical concepts clearly and concisely.
• Stay updated on the latest trends in rail transport and infrastructure technology.

Official company information.