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I was interviewed in Aug 2024.
A transformer is an electrical 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 made of iron or other magnetic materials.
Step-up transformers increase voltage levels, while step-down tr...
Tan Delta testing is a diagnostic test used to measure the insulation quality of electrical equipment.
Tan Delta testing measures the power factor of insulation materials to detect any defects or deterioration.
It helps in identifying potential issues before they lead to equipment failure or breakdown.
The test involves applying a voltage to the insulation and measuring the current flowing through it.
Results are compared ...
Yes, I have experience working in a switch yard.
I have worked in a switch yard for 3 years, performing maintenance and repairs on various electrical equipment.
I am familiar with the safety protocols and procedures required in a switch yard environment.
I have experience troubleshooting and resolving issues with switch yard equipment, such as transformers and circuit breakers.
A merger is when two companies combine to form a new entity, typically to increase market share or efficiency.
A merger involves two companies agreeing to join forces and operate as a single entity.
The goal of a merger is often to increase market share, expand into new markets, or achieve cost savings through economies of scale.
There are different types of mergers, such as horizontal mergers (between competitors in the ...
Yes, I have experience testing transformers in various settings.
I have experience testing transformers in industrial settings to ensure proper functioning.
I am familiar with using multimeters and other testing equipment to check for voltage, current, and resistance.
I have tested transformers for efficiency and performance, identifying any issues and making necessary repairs.
I have also conducted routine maintenance che...
An isolator is a device used to disconnect a circuit from the power supply, ensuring the safety of personnel working on the circuit.
An isolator is used to physically disconnect a circuit from the power supply, allowing maintenance work to be carried out safely.
It is often used in conjunction with a lockout/tagout system to prevent accidental re-energization of the circuit.
Isolators are commonly found in electrical pane...
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I applied via Company Website and was interviewed in Sep 2023. There was 1 interview round.
I applied via Company Website and was interviewed in Jan 2022. There were 3 interview rounds.
This company is good working order
This company is good working condition
posted on 16 Aug 2024
I applied via Naukri.com and was interviewed in Feb 2024. There was 1 interview round.
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
Consists of primary and secondary coils
Changes voltage levels (step-up or step-down)
Used in power distribution systems
Examples: power transformers, distribution transformers
CRO stands for Cathode Ray Oscilloscope, a device used to display and analyze the waveform of electrical signals.
CRO is commonly used by electricians and engineers to troubleshoot electrical circuits.
It displays voltage waveforms in real-time, allowing users to identify issues such as voltage spikes or distortions.
CROs are essential tools for testing and measuring electronic equipment.
Example: A CRO can be used to anal...
A motor is a device that converts electrical energy into mechanical energy to produce motion.
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 and a stator, with the rotor rotating when electrical current is applied.
Examples of motors include elec...
MCB and DOL starter are both electrical devices used for protection and control, but they have different functions and applications.
MCB stands for Miniature Circuit Breaker and is used for circuit protection against overcurrents and short circuits.
DOL starter stands for Direct-On-Line starter and is used for starting and stopping motors.
MCB is a switch that automatically trips and disconnects the circuit when an overcu...
An electrical motor is a device that converts electrical energy into mechanical energy to perform work.
Electrical motors are used in various applications such as industrial machinery, household appliances, and vehicles.
They work on the principle of electromagnetic induction, where a current-carrying conductor experiences a force in the presence of a magnetic field.
There are different types of electrical motors, includi...
Power factor is a measure of how effectively electrical power is being used in a circuit.
Power factor is the ratio of real power (in watts) to apparent power (in volt-amperes).
It indicates the efficiency of electrical power consumption in a circuit.
A power factor of 1 means all the power is being used effectively, while a power factor less than 1 indicates wastage of power.
Inductive loads like motors and transformers h...
A DOL starter circuit diagram is used to control the starting and stopping of an electric motor.
DOL stands for Direct-On-Line.
The circuit consists of a contactor, overload relay, and start and stop buttons.
When the start button is pressed, the contactor closes and power is supplied directly to the motor.
The overload relay protects the motor from excessive current.
The stop button opens the contactor and stops the motor.
The sources of electricity include fossil fuels, nuclear power, renewable energy sources, and batteries.
Fossil fuels such as coal, oil, and natural gas are commonly used to generate electricity in power plants.
Nuclear power plants use nuclear reactions to produce electricity.
Renewable energy sources like solar power, wind power, hydroelectric power, and geothermal power can generate electricity.
Batteries can store and
Insulators are materials that do not conduct electricity.
Insulators are substances that prevent the flow of electric current.
They have high resistance to the flow of electrons.
Insulators are used to protect against electric shocks and to prevent short circuits.
Examples of insulators include rubber, plastic, glass, and ceramic.
Insulators are commonly used in electrical wiring, circuit boards, and electrical equipment.
Semiconductors are used in various electronic devices and systems.
Semiconductors are used in computers and other digital devices for processing and memory.
They are used in telecommunication systems for signal amplification and transmission.
Semiconductors are used in power electronics for controlling and converting electrical energy.
They are used in lighting systems such as LEDs and OLEDs.
Semiconductors are used in sens...
Resistance is the measure of opposition to the flow of electric current in a material.
Resistance is measured in ohms (Ω).
It is caused by the collisions of electrons with atoms and other electrons in the material.
Resistance can be influenced by factors such as temperature, length, and cross-sectional area of the material.
Ohm's Law states that the current flowing through a conductor is directly proportional to the voltag...
The unit of resistance is ohm (Ω).
The unit of resistance is named after the German physicist Georg Simon Ohm.
Resistance is a measure of how much a material or device opposes the flow of electric current.
The symbol for ohm is the Greek letter omega (Ω).
Resistance can be calculated using Ohm's Law: R = V/I, where R is resistance, V is voltage, and I is current.
Common examples of resistance include resistors, light bulbs,
AC and DC shocks can both be dangerous, but AC shocks are generally considered more dangerous.
AC shocks can cause muscle contractions, making it difficult to let go of the source of the shock.
AC shocks can also cause ventricular fibrillation, a potentially fatal condition where the heart's rhythm becomes irregular.
DC shocks are more likely to cause burns and tissue damage at the point of contact.
However, the severity o...
I applied via Campus Placement and was interviewed in Feb 2024. There were 2 interview rounds.
I am Ashutosh Singh
Experience 9 years
Motor mantain ,conveyor belt safety device like bss, zss, installation
I applied via Naukri.com and was interviewed before May 2021. There were 2 interview rounds.
I am a certified electrician with a diploma in Electrical Engineering and 5 years of hands-on experience.
Certified electrician
Diploma in Electrical Engineering
5 years of hands-on experience
The distance between the core and armature in an HT motor varies depending on the specific motor design.
The distance between the core and armature is determined by the motor manufacturer and can vary based on factors such as motor size, voltage rating, and application.
In general, the core and armature are designed to be close enough to ensure efficient magnetic coupling but far enough to prevent physical contact and fr...
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