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The electrical maintenance technician is responsible for repairing and maintaining electrical systems and equipment in various settings.
Responsible for troubleshooting electrical issues and repairing faulty components
Performing regular maintenance tasks to ensure the proper functioning of electrical systems
Following safety protocols and regulations to prevent accidents and ensure compliance
Reading and interpreting tech...
Ohm's law states that the current flowing through a conductor is directly proportional to the voltage across it, and inversely proportional to the resistance of the conductor.
Ohm's law is represented by the formula V = I * R, where V is voltage, I is current, and R is resistance.
It helps in calculating the relationship between voltage, current, and resistance in an electrical circuit.
For example, if a circuit has a vol...
Types of transformers include step-up, step-down, isolation, autotransformer, and distribution transformers.
Step-up transformers increase voltage levels
Step-down transformers decrease voltage levels
Isolation transformers provide electrical isolation between circuits
Autotransformers have a single winding with taps for different voltage levels
Distribution transformers are used to supply power to residential and commercia
A capacitor is an electronic component that stores and releases electrical energy.
Capacitors are used in electrical circuits to store energy and release it when needed
They are commonly used in power supplies, motor starters, and electronic filters
Capacitors are characterized by their capacitance, voltage rating, and tolerance
Examples of capacitors include electrolytic capacitors, ceramic capacitors, and tantalum capaci
R. Y. B. stands for Red, Yellow, Blue - the three primary colors used in electrical wiring.
R. Y. B. are the standard colors used for phase conductors in electrical wiring systems
Red is typically used for the R phase, Yellow for the Y phase, and Blue for the B phase
These colors help electricians easily identify and differentiate between the different phases
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I applied via Company Website and was interviewed in Aug 2023. There were 2 interview rounds.
A substation single-line diagram is a simplified representation of a power system showing the electrical connections and components.
It shows the electrical connections between various components in a substation, such as transformers, circuit breakers, and switches.
The diagram typically includes symbols to represent different types of equipment and their interconnections.
It helps engineers and operators understand the f...
I applied via Naukri.com and was interviewed in Dec 2020. There was 1 interview round.
I applied via Naukri.com and was interviewed before Jun 2023. There were 3 interview rounds.
The gearbox oil grade is typically specified by the manufacturer based on the requirements of the gearbox.
Gearbox oil grade is determined by the viscosity and additives needed for proper lubrication.
Common gearbox oil grades include SAE 80, SAE 90, and SAE 140.
Consult the manufacturer's specifications or maintenance manual for the recommended gearbox oil grade.
Pitch convertor system,
posted on 10 Feb 2024
I applied via Campus Placement
The basic law governing transformers is the law of electromagnetic induction.
The law states that when the magnetic field around a conductor changes, an electromotive force (EMF) is induced in the conductor.
This EMF can cause a current to flow if the conductor forms a closed loop.
In a transformer, this principle is used to transfer electrical energy from one circuit to another through electromagnetic induction.
The prima...
Various losses in a transformer include copper losses, iron losses, and stray losses.
Copper losses occur due to resistance in the transformer windings.
Iron losses, also known as core losses, occur due to hysteresis and eddy currents in the transformer core.
Stray losses occur due to leakage flux and stray capacitance in the transformer.
Copper losses and iron losses are the major contributors to total losses in a transfo...
AC and DC are two types of electrical current. AC changes direction periodically while DC flows in one direction.
AC stands for Alternating Current and DC stands for Direct Current.
AC changes direction periodically, typically in a sinusoidal waveform.
DC flows in one direction only, maintaining a constant polarity.
AC is used for power transmission over long distances due to its ability to be easily converted to different...
An inverter is a device that converts DC power to AC power.
An inverter is commonly used in electrical systems to convert the direct current (DC) produced by sources such as batteries or solar panels into alternating current (AC) that can be used to power appliances and devices.
The basic working principle of an inverter involves the use of electronic components such as transistors to switch the DC input on and off rapid...
Solar panel installation requires several components including solar panels, inverters, mounting systems, wiring, and electrical protection devices.
Solar panels: These are the main components that convert sunlight into electricity.
Inverters: They convert the direct current (DC) produced by solar panels into alternating current (AC) that can be used in homes or fed into the grid.
Mounting systems: These are used to secur...
There are various types of circuit breakers with different uses and ratings.
Miniature Circuit Breaker (MCB) - used in residential and commercial buildings
Molded Case Circuit Breaker (MCCB) - used in industrial applications
Air Circuit Breaker (ACB) - used for high voltage applications
Ground Fault Circuit Interrupter (GFCI) - used to protect against electrical shocks
Residual Current Circuit Breaker (RCCB) - used to detec...
posted on 16 Jan 2025
I applied via Campus Placement and was interviewed in Dec 2024. There were 2 interview rounds.
Easy test with simple questions
Solar panels convert sunlight into electricity through the photovoltaic effect.
Solar panels are made up of photovoltaic cells that contain semiconductors like silicon.
When sunlight hits the solar panel, the photons in the light are absorbed by the semiconductors.
This absorption creates an electric current as the electrons in the semiconductors are excited and flow through the material.
The flow of electrons generates el...
The company is a leading provider of electrical engineering solutions for various industries.
Specializes in designing and implementing electrical systems for commercial and industrial buildings
Offers services such as power distribution, lighting design, and energy efficiency consulting
Works with clients in sectors like manufacturing, healthcare, and telecommunications
Has a team of experienced electrical engineers and t...
posted on 15 Dec 2020
I applied via Naukri.com and was interviewed in Nov 2020. There were 3 interview rounds.
I applied via Naukri.com and was interviewed in Mar 2024. There was 1 interview round.
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