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I applied via Referral and was interviewed in Aug 2024. There were 2 interview rounds.
Transformers are electrical devices that transfer electrical energy between two or more circuits through electromagnetic induction.
Transformers can be classified based on their construction (core type, shell type), cooling method (oil-immersed, dry-type), and application (power, distribution, instrument, etc.)
Examples of transformers include power transformers used in electrical substations, distribution transformers o...
There are three main types of circuit breakers: thermal, magnetic, and thermal-magnetic.
Thermal circuit breakers use a bimetallic strip to break the circuit when it overheats.
Magnetic circuit breakers use a solenoid to trip the circuit when it detects a sudden surge of current.
Thermal-magnetic circuit breakers combine the features of both thermal and magnetic circuit breakers for better protection.
Examples include Squa
I applied via Campus Placement and was interviewed in Sep 2023. There was 1 interview round.
I applied via Campus Placement and was interviewed before Apr 2023. There was 1 interview round.
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I applied via Campus Placement and was interviewed in Aug 2023. There were 2 interview rounds.
Some questions depends on simple aptitude and others questions are technical of electrical
I applied via Campus Placement and was interviewed before May 2023. There were 2 interview rounds.
There were 120 question
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
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...
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...
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.
I was interviewed in Mar 2017.
I applied via Approached by Company and was interviewed before Apr 2021. There were 4 interview rounds.
This has two papers one technical and one non technical
Technical has only two subjects machines and power systems 100 ques 1 hour.
Non technical exam has 50 ques 1/2hour.
Questions related to electrical engineering concepts such as star delta connection, distribution transformer, color coding of conductor, earthing vs grounding, machine efficiency and stability.
Star delta connection is a method of starting three-phase induction motors.
Distribution transformer is used to step down high voltage to low voltage for distribution purposes.
Color coding of conductor is used to identify the func...
posted on 17 Apr 2021
I applied via Other and was interviewed before Apr 2020. There was 1 interview round.
Service tax has been replaced by GST since July 2017. NPV is still relevant for investment decisions.
Service tax has been subsumed under GST since July 2017
NPV stands for Net Present Value and is used to evaluate investment decisions
NPV takes into account the time value of money and calculates the present value of future cash flows
NPV is still relevant and widely used in finance and investment analysis
I applied via Campus Placement and was interviewed before Nov 2021. There were 2 interview rounds.
based on 3 interviews
1 Interview rounds
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