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I applied via Recruitment Consultant and was interviewed in Jun 2021. There was 1 interview round.
GIS stands for Geographic Information System. ICT Protection refers to the protection of information and communication technology systems. REF stands for Relay Electronic Fundamentals.
GIS is a system that captures, stores, analyzes, and presents geographic data.
ICT Protection involves measures to safeguard information and communication technology systems from unauthorized access, damage, or disruption.
REF is a branch o...
Various types of protections are used in Powergrid substation to ensure safety and reliability of the system.
Overcurrent protection
Under/overvoltage protection
Differential protection
Distance protection
Frequency protection
Ground fault protection
Backup protection
Isolation protection
Lightning protection
GIS and AIS are two types of switchgear used in power systems.
GIS stands for Gas Insulated Switchgear and uses SF6 gas as insulation.
AIS stands for Air Insulated Switchgear and uses air as insulation.
GIS is more compact and requires less maintenance than AIS.
AIS is less expensive than GIS.
GIS is used in high voltage applications while AIS is used in low to medium voltage applications.
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posted on 7 Mar 2024
I applied via Walk-in and was interviewed in Feb 2024. There was 1 interview round.
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 ...
posted on 8 Nov 2023
I applied via Naukri.com and was interviewed in May 2023. There were 4 interview rounds.
About your work style and work management
Transformer works on the principle of electromagnetic induction to transfer electrical energy between two or more circuits.
Transformers have two coils of wire, known as primary and secondary coils.
When an alternating current flows through the primary coil, it creates a changing magnetic field.
This changing magnetic field induces a voltage in the secondary coil, transferring electrical energy.
Transformers are used to st...
The process of new meter installation involves site survey, meter selection, installation, testing, and commissioning.
Site survey to determine the location and requirements for the new meter
Meter selection based on the specific needs and specifications of the site
Installation of the new meter by qualified electricians or engineers
Testing the meter to ensure accurate readings and proper functionality
Commissioning the me...
LOTO stands for Lockout/Tagout. It is a safety procedure used to ensure that dangerous machines are properly shut off and not started up again prior to the completion of maintenance or servicing work.
LOTO involves isolating energy sources, locking them out, and tagging them to indicate that maintenance work is being performed.
Workers involved in the maintenance work are the ones who apply the locks and tags, ensuring t...
posted on 19 Dec 2022
I applied via Walk-in and was interviewed in Nov 2022. There were 4 interview rounds.
Basic mathematics aptitudes.
Basic level of core field related question. (Fresher)
Electrical engineers work on a wide range of products including consumer electronics, power systems, communication devices, and more.
Consumer electronics such as smartphones, laptops, and TVs
Power systems including generators, transformers, and distribution systems
Communication devices like routers, modems, and cell phones
posted on 15 Jan 2025
I applied via Walk-in and was interviewed before Jan 2024. There was 1 interview round.
I applied via Naukri.com and was interviewed before Jan 2023. There were 4 interview rounds.
Over all plant related
posted on 26 Aug 2021
I applied via Job Portal and was interviewed before Aug 2020. There was 1 interview round.
Squirrel cage induction motors have a simple and robust design, while slip ring induction motors have additional components for controlling speed and torque.
Squirrel cage induction motors have a rotor with short-circuited conductors, while slip ring induction motors have a rotor with external resistors or brushes.
Squirrel cage motors are commonly used in applications where constant speed is required, such as fans and p...
posted on 11 Sep 2020
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