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Sansera Engineering
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I applied via Approached by Company and was interviewed in Jan 2024. There was 1 interview round.
Tube light diagram shows the components of a fluorescent light fixture. Star delta diagram is used for motor starting. 3 phase voltage is typically 415V, single phase voltage is 230V.
Tube light diagram includes components like starter, choke, and fluorescent tube.
Star delta diagram is used for starting induction motors to reduce starting current.
3 phase voltage is usually 415V in industrial settings.
Single phase voltag
I applied via Walk-in and was interviewed before Jul 2021. There were 2 interview rounds.
Electrical voltage is the measure of electric potential difference between two points in a circuit.
Voltage is measured in volts (V)
It is the force that drives electric current through a circuit
Higher voltage means more energy is available to move electrons
Voltage can be either AC (alternating current) or DC (direct current)
Examples of voltage sources include batteries, generators, and power outlets
Electrical mcq and general apptitude
posted on 24 Apr 2022
I applied via Walk-in and was interviewed before Apr 2021. There was 1 interview round.
posted on 18 Feb 2022
I applied via Job Fair and was interviewed in Aug 2021. There were 2 interview rounds.
AC drive installation system involves the setup and configuration of AC drives for various electrical applications.
AC drive installation requires knowledge of electrical circuits and wiring.
Proper grounding and insulation are crucial for safe and efficient operation.
Installation involves connecting the AC drive to the power supply and the motor.
Configuring the drive parameters and programming the control system is nece...
DC drive installation system involves the setup and configuration of DC drives for electrical systems.
DC drive installation requires knowledge of electrical circuits and components.
Proper wiring and connections are crucial for the safe and efficient operation of DC drives.
Understanding the specifications and requirements of the DC drive is essential.
Testing and troubleshooting skills are necessary to ensure the DC driv...
I applied via Walk-in and was interviewed before Jul 2020. There was 1 interview round.
Maintenance is the process of ensuring that equipment, machinery, and facilities are in good working condition.
Regular inspection and repair of equipment
Preventive maintenance to avoid breakdowns
Replacing worn-out parts
Cleaning and lubricating machinery
Ensuring safety standards are met
Maintaining records of maintenance activities
Responding to emergency repairs
Continuous improvement of maintenance processes
PM stands for Preventive Maintenance, MTTR is Mean Time To Repair, and MTBF is Mean Time Between Failures.
PM is a proactive maintenance strategy that involves regularly scheduled maintenance to prevent equipment failure.
MTTR is the average time it takes to repair a piece of equipment after a failure.
MTBF is the average time between equipment failures.
These metrics are important for measuring the effectiveness of mainte...
I applied via Walk-in and was interviewed in Aug 2020. There were 3 interview rounds.
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 motor is an electrical device that converts electrical energy into mechanical energy.
Motors are used in a variety of applications, from powering industrial machinery to driving household appliances.
There are different types of motors, including AC motors, DC motors, and stepper motors.
Motors can be controlled using various methods, such as variable frequency drives and soft starters.
Proper maintenance and inspection ...
A star delta starter is used to reduce the starting current of a motor.
The motor is initially connected in star configuration to reduce the voltage across each winding.
After a set time, the motor is switched to delta configuration for normal operation.
The control diagram includes a timer, contactors, and overload protection.
The timer delays the switching from star to delta configuration.
The contactors are used to switc...
DOL starter is used in single-phase induction motors and small three-phase motors.
DOL starter stands for Direct-On-Line starter.
It is used to start and stop the motor directly without any intermediate control.
It is commonly used in single-phase induction motors and small three-phase motors.
DOL starter provides full voltage to the motor during starting, which can cause high starting current.
It consists of a contactor, t...
The resistive load equation is used to calculate the power consumed by a resistive load.
The equation is P = V^2/R, where P is power, V is voltage, and R is resistance.
This equation is used in electrical engineering to determine the power consumption of resistive loads such as heaters and incandescent light bulbs.
The equation can also be rearranged to solve for voltage or resistance, depending on the information given.
I...
Asynchronous motors are used for various purposes due to their simple design and low cost.
Asynchronous motors are commonly used in industrial applications such as pumps, fans, and compressors.
They are also used in household appliances like washing machines and refrigerators.
Asynchronous motors are preferred for their low maintenance and high reliability.
They are also used in electric vehicles and hybrid cars.
Asynchrono...
Transformers are classified based on their construction, purpose, and voltage level.
Based on construction: core type, shell type, and Berry type
Based on purpose: power transformer, distribution transformer, isolation transformer, autotransformer, etc.
Based on voltage level: step-up transformer, step-down transformer, and isolation transformer
Other classifications: single-phase transformer, three-phase transformer, and ...
India has a total installed capacity of over 370 GW as of 2021.
India's power generation capacity has been growing rapidly in recent years
The country has set a target of achieving 450 GW of renewable energy capacity by 2030
India is one of the world's largest producers of renewable energy, with a capacity of over 100 GW
Coal still accounts for a significant portion of India's power generation, but the government is workin
Chopper circuits are used to convert a fixed DC voltage to a variable DC voltage.
Chopper circuits are also known as DC-DC converters.
They are used in applications such as battery charging, motor control, and renewable energy systems.
Chopper circuits use high-frequency switching to control the output voltage.
Examples of chopper circuits include buck converters, boost converters, and buck-boost converters.
I applied via Referral and was interviewed before Oct 2021. There were 2 interview rounds.
posted on 30 Sep 2021
I applied via Walk-in and was interviewed in Aug 2021. There was 1 interview round.
I applied via Walk-in and was interviewed before Feb 2021. There were 2 interview rounds.
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