BHEL

Company context

Bharat Heavy Electricals Limited (BHEL) is a leading engineering and manufacturing company in India. They specialize in the design, engineering, manufacturing, construction, testing, commissioning, and servicing of a wide range of products and services for the core sectors of the economy, including power, transmission, industry, transportation, renewable energy, oil & gas, and defense. Electrical Engineering graduates may find opportunities in areas such as power generation, transmission, and industrial systems.

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. Explain the working principle of a transformer. A transformer operates on the principle of electromagnetic induction and is used to change the voltage levels in an AC circuit. It consists of primary and secondary windings and operates by transferring electrical energy between the two through a magnetic field.

2. What are the different types of power plants? Power plants can be classified into several types based on the source of energy used, such as thermal, hydroelectric, nuclear, solar, and wind power plants. Each type has its own method of generating electricity and is chosen based on resource availability and environmental considerations.

3. How does a synchronous motor work? A synchronous motor maintains synchronous speed at a fixed frequency within its stable load range. A wound-field rotor uses DC excitation; permanent-magnet and reluctance synchronous motors use different rotor arrangements.

4. What is the significance of power factor in electrical systems? Power factor is a measure of how effectively electrical power is being used. A high power factor indicates efficient utilization of electrical power, while a low power factor signifies poor utilization, leading to increased losses and higher electricity costs.

5. Describe the function of a circuit breaker. A circuit breaker is a safety device designed to protect an electrical circuit from damage caused by overload or short circuit. It automatically interrupts the flow of electricity when a fault is detected, preventing potential hazards.

6. What are the advantages of HVDC transmission? High Voltage Direct Current (HVDC) transmission offers several advantages, including potential loss advantages on suitable links, controllable power transfer, and the ability to connect asynchronous grids.

Before the interview

• Review your academic projects and internships, focusing on those related to power systems and electrical machines.
• Brush up on core Electrical Engineering subjects, especially those relevant to BHEL's work.
• Research BHEL's recent projects, technological advancements, and industry position.
• Prepare to discuss how your skills and experiences align with BHEL's objectives and values.

Official company information.