ABB GISL Senior Project Engineer Interview Questions and Answers

Q1. Full details in transformer Star delta connection Electrical insulator
Ans. 
Transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction. Star delta connection is a method used to connect three-phase electrical motors. Electrical insulators are materials that resist the flow of electric current.
• Transformer: device that transfers electrical energy through electromagnetic induction

• Star delta connection: method for connecting three-phase ...read more
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Basic mathematics aptitudes.
Basic level of core field related question. (Fresher)

Q1. Electrical Engineering
Ans. Explain basic level of Electrical Engineering related answers like, type of switch gear, Type of Transformer, Type of motors, DOL Starter, Star Delta Starter, SLD, circuit diagram, Types of Power Plants, Step wise explain how to power delivers to power station to residential/commercial/industrial.
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Q2. Introduce yourself and working life style ?
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Q3. Why you interested in the post?
Ans. Bcz it is best for growing my career and my skills development more strongly.
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Q1. What you know about this company?
Ans. Research before the company related details where you are applying.
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Q2. Why you're interested to work in this company?
Ans. Given answer is the best.. I see this opportunity as a way of my skill developing and contributing my skills to an exciting/ forward-thinking fast moving company/industry. Second one if company near about your hometown.. I see this company near about my home and I am easily work here and also take care my family (valid reason share).
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Q3. What your expectations from our company?
Ans. My goals for the company are that it have work atmosphere in which I will contribute to the team, be recognized for my efforts, provide career security, and have the opportunity to advance within the company.
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Q1. About your Past Experience
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Q2. Your knowledge about Cables & workings of UG cable project
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Q3. Knowledge of safety protocol during construction.
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Q4. Some general awareness questions.
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Q5. Your letter writing skills
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Q6. Focus on your personal attitude
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Q1. Tell about the work function of LA
Ans. LA has the metal oxide varistor discs inside it.At the standard system voltage it acts as insulator & doesn't allow current to pass through it.But in case of high voltage surges,it acts as conductor and allows the high current to pass through it.As LA are earthed.So the current is earthed and expensive electricals are saved from damage.
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Q2. What should be the earth resistance of a distribution transformer?In case of high resistance what is the solution
Ans. 
Earth resistance of a distribution transformer and solution for high resistance
• The earth resistance of a distribution transformer should be less than 1 ohm

• High resistance can cause electric shock and damage to equipment

• Solution for high resistance includes improving grounding system, adding more grounding rods, and using chemical treatment

• Regular maintenance and testing of grounding system is important
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