Adani Power Field Engineer Interview Questions and Answers

Q1. What is working principle of transformer
Ans. 
A transformer operates on electromagnetic induction to transfer electrical energy between circuits at different voltage levels.
• Consists of primary and secondary coils wound around a magnetic core.

• Works on the principle of Faraday's law of electromagnetic induction.

• When alternating current flows through the primary coil, it creates a magnetic field.

• This magnetic field induces a voltage in the secondary coil.

• Transformers...read more
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Q2. What's efficiency of transformer
Ans. 
The efficiency of a transformer measures how effectively it converts input power to output power, typically expressed as a percentage.
• Efficiency is calculated as (Output Power / Input Power) x 100%.

• Typical transformer efficiencies range from 95% to 99%.

• Higher efficiency reduces energy losses, making transformers more economical.

• Example: A transformer with 98% efficiency means 98% of input power is converted to output p...read more
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Q3. Types of generating power plants
Ans. 
Power plants generate electricity using various energy sources, including fossil fuels, nuclear, and renewables.
• Thermal Power Plants: Use fossil fuels like coal, oil, or natural gas (e.g., coal-fired plants).

• Nuclear Power Plants: Generate electricity through nuclear fission (e.g., plants using uranium).

• Hydroelectric Power Plants: Utilize flowing water to generate power (e.g., Hoover Dam).

• Wind Power Plants: Harness wind...read more
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Q4. What is hybrid system
Ans. 
A hybrid system combines different technologies or methodologies to leverage their strengths for improved performance and flexibility.
• Hybrid systems can integrate both analog and digital components, such as in hybrid cars that use both electric and gasoline engines.

• In computing, hybrid systems may refer to cloud computing models that combine public and private clouds for enhanced scalability and security.

• In control sys...read more
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Q5. Types of transformer
Ans. 
Transformers are electrical devices that transfer energy between circuits through electromagnetic induction, with various types for different applications.
• Step-up Transformer: Increases voltage, used in power transmission.

• Step-down Transformer: Decreases voltage, used in power distribution.

• Isolation Transformer: Provides electrical isolation, used in sensitive equipment.

• Auto Transformer: Has a single winding, used for ...read more
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Q6. What's central inverter
Ans. 
A central inverter converts DC electricity from solar panels into AC electricity for grid use or consumption.
• Central inverters are commonly used in large-scale solar power plants.

• They are more efficient for larger installations compared to string inverters.

• Examples include the SMA Sunny Central and ABB PVS series.

• Central inverters typically require more space and are installed in dedicated areas.

• They can manage multipl...read more
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Q1. Solar pv cell knowledge and experience
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Discuss work related questions

Q1. Salary discuss and other accommodation
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Q1. First your communication skill then your experience in your feild , and general questions, confidence level and your attitude
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Q1. Smart meter installation process
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