Tata Steel
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I applied via Walk-in and was interviewed in Sep 2022. There were 2 interview rounds.
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posted on 15 Jan 2025
I applied via AmbitionBox and was interviewed in Dec 2024. There were 5 interview rounds.
An overload relay works by monitoring the current flowing through a motor and tripping when the current exceeds a set limit.
Monitors the current flowing through a motor
Trips and interrupts power when current exceeds a set limit
Protects the motor from damage due to overloading
Can be reset manually after tripping
Insulation resistance is measured using a megohmmeter to apply a high voltage and measure the resistance of the insulation material.
Use a megohmmeter to apply a high voltage to the insulation material
Measure the resistance of the insulation material to determine its insulation resistance
Insulation resistance is typically measured in megaohms (MΩ)
Regular insulation resistance testing helps prevent electrical failures an
Electrical safety can be ensured by following proper procedures, using appropriate equipment, and staying vigilant.
Always use insulated tools when working on live circuits
Ensure circuits are de-energized before working on them
Wear appropriate personal protective equipment (PPE) such as gloves and goggles
Regularly inspect and maintain electrical equipment to prevent malfunctions
Follow safety guidelines and procedures ou
Preventive maintenance on a motor involves inspecting, cleaning, lubricating, and testing the motor to ensure optimal performance and prevent breakdowns.
Inspect the motor for any signs of wear or damage
Clean the motor and its components to remove dirt and debris
Lubricate moving parts to reduce friction and wear
Test the motor's performance using appropriate tools and equipment
Replace any worn out parts or components as
To succeed in an interview, it is important to prepare thoroughly, practice common interview questions, research the company, dress professionally, and demonstrate enthusiasm and confidence.
Thoroughly research the company and the position you are applying for
Practice common interview questions and prepare examples of your skills and experiences
Dress professionally and appropriately for the interview
Demonstrate enthusia...
A star-delta starter is used to reduce the starting current of a motor by initially connecting the motor windings in a star configuration and then switching to a delta configuration.
The motor windings are initially connected in a star configuration during starting to reduce the starting current.
After a certain period, the windings are switched to a delta configuration to achieve full speed and torque.
This transition fr...
Undervoltage faults occur when the voltage in a system drops below the normal operating level, leading to potential equipment damage or malfunction.
Undervoltage faults can be caused by issues such as power supply fluctuations, equipment failures, or overloaded circuits.
These faults can lead to equipment damage, reduced efficiency, or complete shutdown of systems.
Examples include a power surge causing a drop in voltage,...
Overvoltage faults are electrical faults that occur when the voltage in a circuit exceeds the normal operating range.
Overvoltage faults can damage electrical components and equipment.
They can be caused by lightning strikes, power surges, or faulty equipment.
Protective devices like surge protectors and voltage regulators can help prevent overvoltage faults.
Examples include a power surge from a lightning strike damaging ...
A thermal relay is used to protect electrical circuits from overloads by monitoring the temperature of the circuit and tripping when it exceeds a certain threshold.
Monitors the temperature of the electrical circuit
Trips and disconnects the circuit when temperature exceeds a set limit
Protects against overloads and overheating
Commonly used in motor protection applications
An RDOL starter is a type of reduced voltage starter used in electrical systems to reduce the starting current and torque of a motor.
RDOL stands for Reduced Direct Online starter.
It is used to start induction motors in a controlled manner.
RDOL starters reduce the voltage supplied to the motor during starting to limit the inrush current.
This helps in reducing mechanical stress on the motor and connected equipment.
Common...
posted on 15 Sep 2024
posted on 7 Nov 2024
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
Transformers are used to increase or decrease voltage levels in electrical circuits.
They consist of two coils of wire, known as the primary and secondary coils, wrapped around a core.
The primary coil is connected to the input voltage source, while the secondary coil is connected to the output load.
T...
An encoder is a device or software program that converts data from one format to another.
An encoder can be used to convert analog signals to digital signals or vice versa.
Encoders are commonly used in robotics, industrial automation, and digital communication systems.
Examples of encoders include optical encoders, magnetic encoders, and rotary encoders.
A motor is a device that converts electrical energy into mechanical energy to produce motion.
Motors can be found in various applications such as industrial machinery, household appliances, and vehicles.
There are different types of motors including AC motors, DC motors, and servo motors.
Motors work by creating a magnetic field that interacts with current-carrying conductors to generate force and motion.
AC VVFD stands for Alternating Current Variable Voltage Variable Frequency Drive.
AC VVFD is a type of motor controller that varies the voltage and frequency of the electrical supply to control the speed of an AC motor.
It is commonly used in industrial applications to regulate the speed of pumps, fans, conveyors, and other equipment.
AC VVFDs can improve energy efficiency, reduce wear and tear on equipment, and provide p...
I applied via Walk-in and was interviewed in May 2024. There was 1 interview round.
RJ45 connector is a standardized physical interface for connecting Ethernet cables to network devices.
RJ45 connector is commonly used for Ethernet networking.
It has 8 pins that are used to transmit data.
RJ45 connectors are used in networking equipment like routers, switches, and computers.
They are also used for connecting devices like printers, IP cameras, and VoIP phones.
PVC pipe is a type of plastic pipe commonly used in plumbing and electrical applications.
PVC stands for polyvinyl chloride
It is lightweight, durable, and resistant to corrosion
Commonly used for water supply lines, drainage systems, and electrical conduit
Available in various sizes and colors for different applications
Chapin is caused by a short circuit in an electrical system.
Chapin is caused by a short circuit, which occurs when a current bypasses the normal load path and flows through an unintended path.
Short circuits can be caused by damaged insulation, loose connections, or faulty equipment.
Short circuits can lead to overheating, fires, and damage to electrical components.
Proper insulation, regular maintenance, and using high-q...
RJ45 connectors are used for connecting Ethernet cables to networking devices such as computers, routers, and switches.
Used for connecting Ethernet cables
Commonly used in networking devices like computers, routers, and switches
Has 8 pins for data transmission
Provides a secure and reliable connection
posted on 15 Sep 2024
I applied via Naukri.com and was interviewed in Mar 2024. There were 2 interview rounds.
Transformer maintenance involves regular inspection, testing, and servicing to ensure optimal performance and prevent breakdowns.
Regularly inspecting for signs of wear and tear
Testing insulation resistance to prevent short circuits
Servicing cooling systems to prevent overheating
Checking oil levels and quality for proper lubrication
Cleaning and tightening connections for efficient operation
A motor is a device that converts electrical energy into mechanical energy to perform work.
Motors are commonly used in various applications such as industrial machinery, household appliances, and vehicles.
There are different types of motors including AC motors, DC motors, and servo motors.
Motors consist of a rotor, stator, and various components such as windings, bearings, and brushes.
Examples of motors include electri
VCB stands for Vacuum Circuit Breaker, which is a type of circuit breaker that uses vacuum as the arc quenching medium.
VCB is used to interrupt the current flow in a circuit by creating a gap between contacts where the arc is extinguished in a vacuum.
It is commonly used in medium voltage power systems for its high reliability and low maintenance requirements.
VCBs are preferred over other types of circuit breakers in ap...
Ohm is the unit of electrical resistance in the International System of Units (SI).
Ohm is represented by the symbol Ω.
It is named after German physicist Georg Simon Ohm.
One ohm is equal to the resistance of a conductor in which a current of one ampere is produced by a potential difference of one volt.
posted on 23 Jan 2024
MCB stands for Miniature Circuit Breaker, which is an electrical switch designed to protect electrical circuits from damage caused by overload or short circuit.
MCB is a type of circuit breaker that automatically switches off the electrical circuit when it detects an overload or short circuit.
It is commonly used in residential and commercial buildings to protect electrical appliances and wiring.
MCBs have a trip mechanis...
I applied via Naukri.com and was interviewed in Mar 2024. There was 1 interview round.
A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.
Consists of two coils of wire, known as primary and secondary windings
Works on the principle of electromagnetic induction
Used to step up or step down voltage levels
Commonly used in power distribution systems
Examples include power transformers, distribution transformers, and instrument transformers
A motor is a device that converts electrical energy into mechanical energy to perform work.
Motors are commonly used in various applications such as industrial machinery, household appliances, and vehicles.
There are different types of motors including AC motors, DC motors, and servo motors.
Motors consist of a rotor, stator, and various components such as windings, bearings, and brushes.
The rotation of the motor is gener...
VCB stands for Vacuum Circuit Breaker, which is a type of circuit breaker that uses vacuum as the arc quenching medium.
VCB is used to interrupt the current flow in a circuit by creating a gap between contacts where the arc is extinguished in a vacuum.
It is commonly used in medium voltage power systems for its high reliability and fast interruption speed.
VCBs require less maintenance compared to other types of circuit b...
Work and time, reasoning,essay
posted on 12 Aug 2022
I applied via AmbitionBox and was interviewed in Jul 2022. There were 3 interview rounds.
Electrical work in out said
Yes working in said lights reparing sky
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