Megha Engineering & Infrastructures Electrical Design Engineer Trainee Interview Questions and Answers

Q1. About your self
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Q2. About previous project
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Q1. Transformer realy
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Normal introduction and interview

Q1. Type of electrical motor
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There are various types of electrical motors including AC motors, DC motors, synchronous motors, and induction motors.
• AC motors: commonly used in household appliances and industrial applications

• DC motors: used in applications where speed control is important, such as in electric vehicles

• Synchronous motors: used in applications where precise speed control is required, such as in clocks and timers

• Induction motors: widely...read more
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Q2. 3 phase induction motor starter
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Q3. Protection of transformer
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Protection of transformer involves measures to prevent damage from overcurrent, overvoltage, and overheating.
• Use overcurrent protection devices such as fuses and circuit breakers to prevent damage from excessive current flow.

• Install overvoltage protection devices like surge arresters to safeguard against voltage spikes.

• Implement temperature monitoring systems to prevent overheating, such as thermal sensors and cooling ...read more
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Q4. ACB VCB maintenance
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Q5. Star delta connection
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Q1. As per company policy requirement condition
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Q1. As per company policy requirement
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Q1. I was interviewed for Transmission & Distribution Profile Q1 - Please walk us through your CV and your roles in the various projects ? Q2 - Tell us about design calculations of EHV Cables. How you come up ...read more
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Q2. Q15 - Concepts of HVDC & Offshore Connections
Ans. 
HVDC is a technology used to transmit high voltage DC power over long distances. Offshore connections refer to power transmission from offshore wind farms.
• HVDC is more efficient than AC transmission over long distances

• Offshore connections require specialized equipment and installation techniques

• HVDC is used for offshore connections to transmit power from offshore wind farms to the mainland

• Examples of HVDC projects incl...read more
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Q1. What is ATS, transformer maintenance procedure, protection of transformer, maintenance procedure of motor, protection of motor, knowledge about SAP
Ans. 
ATS stands for Automatic Transfer Switch. It is used to transfer power supply between two sources. Transformer and motor maintenance procedures and protection methods are essential for their efficient operation. SAP is a software used for enterprise resource planning.
• ATS is used to automatically switch power supply between two sources, ensuring uninterrupted power supply.

• Transformer maintenance involves regular inspect...read more
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Q2. Knowledge about DG set, and spare material
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Q3. Rating of HT motor and FLC of HT motor
Ans. 
HT motor rating is the maximum power it can handle and FLC is the current it draws at full load.
• HT motor rating is expressed in kilowatts (kW) or megawatts (MW).

• FLC of HT motor is the full load current it draws at rated voltage and frequency.

• FLC is expressed in amperes (A) and varies depending on the motor's power rating and efficiency.

• For example, a 1 MW HT motor may have a FLC of 1000 A at 11 kV.

• The rating and FLC of...read more
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Q4. Plant EHT system and single line diagram of plants.
Ans. 
Plant EHT system and single line diagram of plants.
• EHT system refers to Extra High Tension system used in power plants

• Single line diagram shows the electrical connections between different components

• It is important to have a clear and accurate diagram for safety and maintenance purposes
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Q5. Knowledge about HT and LT breaker.
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Q1. Transformer erection, cable stringing, meter installation
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Q2. 11kv rabit conductor stringing
Ans. 
11kv rabit conductor stringing
• Rabbit conductor is a type of overhead power line conductor

• It is used for high voltage transmission lines

• Stringing involves pulling the conductor through the towers

• Proper tensioning and sagging is important for efficient transmission

• Specialized equipment like tensioners and pullers are used for stringing
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Q1. What is your family background?
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Q2. Share details of your previous job.
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Q3. What are your strengths and weaknesses?
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Q4. Tell me about yourself.
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