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Power Grid Corporation of India Senior Engineer- Maintenance Interview Questions and Answers

Updated 29 Sep 2022

Power Grid Corporation of India Senior Engineer- Maintenance Interview Experiences

1 interview found

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. About transformer protection and shut down process ....Etc
  • Q2. How Buchholz relay works?
  • Ans. 

    Buchholz relay is a protective device used in oil-filled transformers to detect and prevent faults.

    • It is installed between the transformer tank and conservator tank.

    • It detects the presence of gas or oil flow in the transformer oil.

    • It operates on the principle of gas collection and oil surge.

    • It sends an alarm signal to the control room in case of any fault.

    • It helps in preventing major faults and damage to the transforme

  • Answered by AI
Round 3 - Aptitude Test 

About relationship,Problems on age

Round 4 - Group Discussion 

GD on Line operation , Shutdown of ICT

Interview Preparation Tips

Interview preparation tips for other job seekers - Mind concentration should be sharp , Present of mind should be very sharp....before interviewer ...And don't thik what company will do for you always think what can you do for the company..

Interview questions from similar companies

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - HR 

(3 Questions)

  • Q1. Introduce yourself
  • Q2. What is your strength
  • Q3. What is your weakness

Trainee Interview Questions & Answers

NTPC user image Anonymous

posted on 12 Jan 2015

Interview Questionnaire 

4 Questions

  • Q1. Explain the parameters of transmission line ?
  • Ans. 

    Parameters of transmission line include resistance, inductance, capacitance, and conductance.

    • Resistance: opposition to the flow of current

    • Inductance: ability to store energy in a magnetic field

    • Capacitance: ability to store energy in an electric field

    • Conductance: ability to conduct electric current

    • Examples: coaxial cable, waveguide, twisted pair cable

  • Answered by AI
  • Q2. What is Hysteresis curve ?
  • Ans. 

    Hysteresis curve is a graphical representation of the relationship between magnetic field strength and magnetization of a material.

    • It shows the lag between the magnetic field and the magnetization of a material.

    • It is used to study the magnetic properties of materials.

    • It is commonly used in the design of magnetic circuits and devices.

    • Examples include transformer cores, magnetic storage devices, and electric motors.

    • The s...

  • Answered by AI
  • Q3. Why and which type of transformer do we use to reduce power loss during transmission?
  • Ans. 

    We use step-up transformers to reduce power loss during transmission by increasing voltage and decreasing current.

    • Step-up transformers increase voltage and decrease current, which reduces power loss during transmission.

    • This is because power loss is proportional to the square of the current, so reducing current reduces power loss.

    • For example, power is transmitted over long distances at high voltages (e.g. 500 kV) to red...

  • Answered by AI
  • Q4. Explain Power Factor?
  • Ans. 

    Power factor is the ratio of real power to apparent power in an AC circuit.

    • Power factor is a measure of how efficiently electrical power is being used.

    • It ranges from 0 to 1, with 1 being the most efficient.

    • A low power factor can result in higher energy costs and equipment damage.

    • Capacitors can be used to improve power factor.

    • Power factor is important in industries where large amounts of electrical power are used.

  • Answered by AI

Interview Preparation Tips

Round: Resume Shortlist
Experience: First shortlisting is CPI based.

General Tips: • The company has different selection criteria's for different category.
• You must thoroughly study their site, it will make very good impression on them.
• You must give your interview in a way that they must think you will definitely join it.
Skills: Power Systems,
College Name: IIT- Kanpur

I applied via Other and was interviewed before Jul 2017. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. What type of dampings are there in case of vibration.
  • Ans. 

    There are several types of dampings in case of vibration, including viscous damping, hysteretic damping, and structural damping.

    • Viscous damping: It occurs when a fluid or viscous material is used to dissipate energy and reduce vibration.

    • Hysteretic damping: It is caused by the internal friction within a material, which converts mechanical energy into heat.

    • Structural damping: It is inherent in the structure itself and is...

  • Answered by AI

Interview Preparation Tips

General Tips: It was held in Delhi at Nehru palace in year 1985 after an all India written test.I was recruited in ITI Ltd a month before and so was relaxed not to prepare much for the interview. I told the interviewers that I just finished my 2 ND semester of M.Tech. at Itbhu.one member was from IIT Delhi and I could not answer viscous damping, inertial damping etc for his question on types of damping and I was rejected.Selection was made of my 2 years junior of graduation college who too had joined ITI Ltd in 1985.
Skills: Analytical Skills
Duration: >3 Months

Engineer Interview Questions & Answers

CESC user image Anonymous

posted on 22 Sep 2021

I applied via Campus Placement and was interviewed before Sep 2020. There were 4 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. Draw Induction Motor equivalent ckt.
  • Ans. 

    Induction Motor equivalent circuit consists of stator and rotor circuits with mutual induction.

    • The stator circuit includes three-phase winding and a power source.

    • The rotor circuit includes rotor winding and a short-circuited conductor.

    • The mutual induction between stator and rotor circuits causes the rotor to rotate.

    • The equivalent circuit can be represented using a circuit diagram with resistances, inductances, and mutu...

  • Answered by AI
  • Q2. Draw B-H curve
  • Ans. 

    B-H curve is a graph that shows the relationship between magnetic field strength and magnetic flux density.

    • B-H curve is used to characterize the magnetic properties of a material.

    • It is a plot of magnetic flux density (B) versus magnetic field strength (H).

    • The slope of the curve at any point is the permeability of the material at that point.

    • The curve can be used to determine the saturation point of a material.

    • Examples o...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus mostly on Electrical Machines and Power systems if you belong to electrical background.

I applied via Campus Placement and was interviewed before Oct 2020. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. As I was a PASAA trainee, I was asked to create a folder on computer, and to do some calculations in excel etc. I was also asked about my hobby, my skills and interest in any subject.

Interview Preparation Tips

Interview preparation tips for other job seekers - I would like to suggest that always be honest when you are answering your interviewer. Secondly, be confident about whatever you are saying and moreover, be bold enough to conface if you don't know or can't recall the answer of the questions you are asked. Last but not the least make sure that you have completed your interview with an impressive eye contact and with a smiling face.

I applied via Walk-in and was interviewed in Dec 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Company working culture?
  • Ans. 

    The company culture is collaborative, innovative, and focused on continuous improvement.

    • Employees are encouraged to share ideas and work together to solve problems.

    • The company values creativity and rewards employees who come up with innovative solutions.

    • There is a strong emphasis on learning and development, with opportunities for training and career growth.

    • The company is committed to sustainability and social responsi...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Better opportunity for the new employees to do the work.

I applied via Referral and was interviewed before Jul 2021. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. They will ask for your previous job profile and basic of electrical. Not much more theoretical, major part is practical

Interview Preparation Tips

Interview preparation tips for other job seekers - If you have a experience in same field you will able to handle questions easi

Interview Questionnaire 

1 Question

  • Q1. What is multimeter
  • Ans. 

    A multimeter is an electronic device used to measure voltage, current, and resistance in electrical circuits.

    • It can measure AC and DC voltage

    • It can measure AC and DC current

    • It can measure resistance

    • It can also measure other electrical parameters such as capacitance and frequency

    • It typically has a digital display for easy reading

    • Examples of multimeter brands include Fluke, Klein Tools, and Extech

  • Answered by AI

I applied via Apprenticeship India and was interviewed in Mar 2021. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. “What do you know about our company?” ...

Interview Preparation Tips

Interview preparation tips for other job seekers - The interviewer wanted to test both my knowledge and communication skills.

Power Grid Corporation of India Interview FAQs

How many rounds are there in Power Grid Corporation of India Senior Engineer- Maintenance interview?
Power Grid Corporation of India interview process usually has 4 rounds. The most common rounds in the Power Grid Corporation of India interview process are Aptitude Test, Group Discussion and Resume Shortlist.
What are the top questions asked in Power Grid Corporation of India Senior Engineer- Maintenance interview?

Some of the top questions asked at the Power Grid Corporation of India Senior Engineer- Maintenance interview -

  1. How Buchholz relay wor...read more
  2. About transformer protection and shut down process .......read more

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