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I applied via Company Website and was interviewed in Apr 2023. There were 2 interview rounds.
A transformer is an electrical device that transfers electrical energy from one circuit to another through electromagnetic induction.
Transformers are used to change the voltage level of an alternating current (AC) power supply.
They consist of two coils of wire, known as the primary and secondary windings, wrapped around a magnetic core.
When an AC voltage is applied to the primary winding, it creates a magnetic field th...
There are two main types of motors: AC motors and DC motors.
AC motors are powered by alternating current and are commonly used in household appliances and industrial machinery.
DC motors are powered by direct current and are commonly used in electric vehicles and robotics.
Other types of motors include stepper motors, servo motors, and linear motors.
Stepper motors are used in precision control applications, while servo m...
There are three types of motors in electrical systems: synchronous, asynchronous (induction), and special motors.
Asynchronous motors include squirrel cage and slip ring induction motors.
Special motors include universal, stepper, brushless DC, and servo VFD motors.
Synchronous motors are used in applications where constant speed is required, while asynchronous motors are used in most industrial applications.
Special motor...
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posted on 28 Oct 2023
Rectifier Generator protection
posted on 30 Nov 2023
I applied via Naukri.com and was interviewed in Oct 2023. There were 2 interview rounds.
There are several types of transformers used in electrical engineering.
Power transformers
Distribution transformers
Instrument transformers
Auto transformers
Isolation transformers
Step-up transformers
Step-down transformers
The number of earthing required for commencing a transformer depends on the type and size of the transformer.
The number of earthing required for a transformer depends on its rating and the local electrical regulations.
In general, a single earthing electrode is sufficient for small transformers with ratings up to a few hundred kVA.
For larger transformers, multiple earthing electrodes may be required to ensure proper gro...
Silica gel is a desiccant commonly used to absorb moisture and prevent the growth of mold and mildew.
Silica gel is a porous form of silicon dioxide.
It is often found in small packets or sachets.
It is used in various industries such as electronics, pharmaceuticals, and food packaging.
Silica gel can absorb moisture up to 40% of its own weight.
It is non-toxic and chemically inert.
Common uses include preserving the freshne...
VCB stands for Vacuum Circuit Breaker. It is a type of electrical switchgear used for protecting electrical circuits from overloads and short circuits.
VCB uses vacuum as the arc quenching medium instead of oil or air.
It is installed in high voltage power systems, such as substations and power plants.
VCBs are commonly used in distribution networks, generator circuits, and transformer circuits.
They provide reliable and e...
The acceptable current for humans depends on various factors such as duration, frequency, and pathway.
The acceptable current for humans is typically below 1 mA for low-frequency currents.
For high-frequency currents, the acceptable current is lower, usually below 0.1 mA.
The duration of exposure also plays a significant role in determining the acceptable current.
The pathway of the current through the body, such as hand-t...
An alternator is an electrical machine that converts mechanical energy into electrical energy.
An alternator is commonly used in vehicles to charge the battery and power the electrical system.
It operates on the principle of electromagnetic induction.
Alternators produce alternating current (AC) which is then converted to direct current (DC) using rectifiers.
They consist of a rotor, stator, and diodes.
The rotor is driven ...
A CT transformer, also known as a current transformer, is an electrical device used to measure alternating current (AC) by stepping down the current to a lower value.
CT transformers are commonly used in power systems to measure high currents without directly connecting measuring instruments to the circuit.
They consist of a primary winding, which carries the current to be measured, and a secondary winding, which is conn...
I applied via Naukri.com and was interviewed in Jan 2021. There was 1 interview round.
posted on 21 Jun 2024
I applied via Company Website and was interviewed before Jun 2023. There were 2 interview rounds.
The process of Water Treatment Plant (W.T.P) involves various stages to purify water for consumption.
1. Coagulation: Adding chemicals to water to make particles clump together.
2. Sedimentation: Allowing the clumped particles to settle at the bottom.
3. Filtration: Passing water through filters to remove remaining particles.
4. Disinfection: Adding chlorine or other chemicals to kill bacteria and viruses.
5. Distribution: ...
I applied via Recruitment Consulltant and was interviewed in Jul 2024. There was 1 interview round.
To ensure successful delivery from project conception to execution, I would focus on clear communication, detailed planning, proactive problem-solving, and regular monitoring.
Establish clear project goals and objectives
Create a detailed project plan with timelines and milestones
Regularly communicate with stakeholders to ensure alignment and address any issues
Proactively identify and address potential risks and challeng...
I have over 5 years of technical experience in project management, construction, and engineering design.
Managed multiple construction projects from initiation to completion
Proficient in AutoCAD and other design software
Experience in creating project schedules and budgets
Knowledge of construction materials and methods
Collaborated with cross-functional teams to ensure project success
I was interviewed in Jul 2022.
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...
A motor is a device that converts electrical energy into mechanical energy to perform work.
Motors are commonly used in various applications such as electric vehicles, industrial machinery, and household appliances.
They come in different types such as AC motors, DC motors, and stepper motors.
Motor capacity refers to its power rating, typically measured in horsepower (HP) or kilowatts (kW).
Higher capacity motors can gene...
based on 1 interview
Interview experience
Megha Engineering & Infrastructures
Shapoorji Pallonji Group
Alstom Transportation
Tata Technologies