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I applied via Naukri.com and was interviewed in Aug 2017. There was 1 interview round.
The SLD (Single Line Diagram) is a graphical representation of the electrical system of a plant.
SLD shows the electrical components and their interconnections in a simplified manner.
It helps in understanding the power flow and control of the plant.
SLD includes transformers, generators, switchgear, motors, and other electrical equipment.
It also depicts protection devices, control circuits, and communication systems.
SLD ...
Impedance voltage of a transformer is the voltage drop that occurs across the transformer's impedance when a current flows through it.
Impedance voltage is a result of the transformer's internal impedance.
It is caused by the resistance and reactance of the transformer's windings and core.
Impedance voltage can be calculated by multiplying the current flowing through the transformer with its impedance.
It represents the vo...
To test IGBT in an a.c drive, perform insulation resistance test, gate voltage test, and current-voltage characteristics test.
Perform insulation resistance test to check for any leakage or insulation breakdown.
Conduct gate voltage test to ensure proper functioning of the gate driver circuit.
Test the current-voltage characteristics to verify the IGBT's performance under different load conditions.
Use an oscilloscope to a...
The P.I test in transformers is performed to determine the insulation condition and losses in the transformer.
P.I test stands for Polarization Index test.
It is a type of insulation resistance test.
The test measures the ratio of insulation resistance at 10 minutes to the insulation resistance at 1 minute.
The test helps in assessing the insulation condition and detecting any moisture or contamination in the transformer.
A...
I applied via Referral and was interviewed before May 2022. There were 4 interview rounds.
I am looking for a competitive salary that reflects my skills and experience.
I have researched the industry standard for this position and would like to be compensated accordingly.
I am open to negotiation based on the specific responsibilities and benefits offered.
I am more interested in finding a company that values and invests in its employees rather than just a high salary.
I am willing to discuss salary further in a
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I applied via Job Fair and was interviewed in Sep 2024. There was 1 interview round.
Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across it, and inversely proportional to the resistance of the conductor.
Ohm's Law is represented by the formula V = IR, 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 ...
Transformer protection refers to the measures taken to ensure the safe operation of transformers and prevent damage.
Overcurrent protection: Protects against excessive current flow.
Overvoltage protection: Safeguards against high voltage levels.
Overtemperature protection: Prevents overheating of the transformer.
Differential protection: Detects internal faults by comparing input and output currents.
Buchholz relay: Detects...
Proficient in computer hardware, software, and programming languages relevant to electrical engineering.
Skilled in using CAD software for circuit design
Familiar with programming languages like C, Python, and MATLAB for simulations
Knowledge of microcontrollers and embedded systems programming
Experience with PLC programming for automation systems
Motor protection is a system designed to prevent damage to motors from electrical faults or overloads.
Motor protection devices include overload relays, thermal protectors, and circuit breakers.
These devices monitor the current and temperature of the motor to prevent overheating and damage.
Motor protection also involves proper grounding, insulation, and regular maintenance to ensure safe operation.
Examples of motor prot...
My hobbies include playing the guitar, hiking, and photography.
Playing the guitar helps me relax and express my creativity.
Hiking allows me to explore nature and stay active.
Photography is a passion of mine, capturing moments and scenes in a unique way.
I applied via Company Website and was interviewed in Jun 2024. There were 2 interview rounds.
One fault occurs in electrical panel fure same fault preventive action
posted on 19 Oct 2024
I applied via Campus Placement and was interviewed in Sep 2024. There were 2 interview rounds.
Aptitude test is easy
posted on 10 Oct 2024
I applied via Company Website and was interviewed in Sep 2024. There were 2 interview rounds.
RPM stands for Revolutions Per Minute.
RPM stands for Revolutions Per Minute
It is a unit of rotational speed
Commonly used in the context of engines, motors, and other rotating machinery
There are various types of motors including DC motors, AC motors, stepper motors, and servo motors.
DC motors: used in applications where speed control is important, such as in electric vehicles.
AC motors: commonly used in household appliances and industrial machinery.
Stepper motors: used in applications requiring precise position control, like 3D printers.
Servo motors: used in robotics and automation for accurate contr
Earthing is the process of connecting electrical systems to the ground to prevent electric shock and protect equipment.
Earthing provides a path for fault currents to flow safely into the ground.
It helps in stabilizing voltage levels and protecting against lightning strikes.
Earthing is essential for safety in electrical systems to prevent electric shocks.
Examples of earthing systems include grounding rods, grounding pla
Insulators are materials that do not conduct electricity and are used to prevent the flow of current.
Insulators are materials with high resistivity, such as rubber, glass, porcelain, and plastic.
They are used to separate conductors in electrical systems to prevent short circuits.
Insulators are crucial for safety in electrical installations to avoid electric shocks and fires.
I applied via LinkedIn and was interviewed in Aug 2024. There was 1 interview round.
I applied via Naukri.com and was interviewed in Nov 2022. There were 2 interview rounds.
A thermocouple is a device that measures temperature by detecting the voltage difference between two different metals.
Consists of two different metal wires joined at one end
Produces a voltage that varies with temperature
Used in temperature measurement and control systems
Commonly used in industrial applications such as furnaces and boilers
The ohmic value of PT-100 is 100 ohms at 0°C.
PT-100 is a type of platinum resistance thermometer.
It has a resistance of 100 ohms at 0°C.
The resistance increases with temperature at a rate of 0.385 ohms/°C.
PT-100 is commonly used in industrial temperature measurement applications.
Calibration 3.0 and 5.0 refer to the accuracy level of a measuring instrument.
Calibration 3.0 means the instrument has an accuracy level of 0.3% of the full scale reading.
Calibration 5.0 means the instrument has an accuracy level of 0.5% of the full scale reading.
The higher the calibration number, the more accurate the instrument is.
Calibration is the process of adjusting an instrument to ensure its accuracy.
Calibratio...
posted on 28 Dec 2022
I applied via Naukri.com and was interviewed in Jun 2022. There were 2 interview rounds.
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...
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...
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
Power generation involves converting mechanical energy into electrical energy using generators, which is then transmitted through power lines to reach consumers.
Power generation involves using generators to convert mechanical energy (from sources like turbines, windmills, or water wheels) into electrical energy
Generators produce electricity by rotating a coil of wire within a magnetic field, creating an electric curren...
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