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3 phase power has three conductors carrying three alternating currents, while 1 phase power has only one conductor carrying one alternating current.
3 phase power is more efficient for high power applications
1 phase power is commonly used in residential buildings
3 phase power provides a more balanced power supply compared to 1 phase power
kW is a unit of real power while kVA is a unit of apparent power in electrical engineering.
kW stands for kilowatts and represents the actual power consumed by a device or system.
kVA stands for kilovolt-amperes and represents the total power in an electrical system, including both real and reactive power.
The difference between kW and kVA is due to the presence of reactive power in the system.
In an ideal system with unit...
Transformer works on the principle of electromagnetic induction to transfer electrical energy between two or more circuits.
Transformers consist of two coils of wire, known as the primary and secondary coils.
When an alternating current flows through the primary coil, it creates a changing magnetic field around it.
This changing magnetic field induces a voltage in the secondary coil, transferring electrical energy between...
Types of AC motors include induction motors, synchronous motors, and brushed and brushless DC motors.
Induction motors: most commonly used type, simple design, reliable, low cost
Synchronous motors: maintain constant speed, used in applications requiring precise speed control
Brushed DC motors: use brushes to conduct current, simple design, easy to control speed
Brushless DC motors: more efficient, longer lifespan, no brus
Positive thinking myself
There are several types of transformers and bus bars used in electrical systems.
Transformers can be classified based on their construction, voltage level, and application.
Common types of transformers include power transformers, distribution transformers, and instrument transformers.
Bus bars are used to distribute electrical power in a system and can be categorized as rigid or flexible.
Examples of bus bar types include ...
The motor working process involves converting electrical energy into mechanical energy.
Electricity is supplied to the motor, which creates a magnetic field.
The magnetic field interacts with the motor's coils, causing them to rotate.
The rotating coils generate mechanical energy, which can be used to power various devices.
Different types of motors, such as AC motors and DC motors, have variations in their working process
I applied via Company Website and was interviewed in Sep 2023. There was 1 interview round.
Vitromed Healthcare interview questions for popular designations
I applied via Walk-in and was interviewed in Jan 2023. There were 2 interview rounds.
To achieve success in your work, it is important to set clear goals, prioritize tasks, maintain a positive attitude, and continuously improve your skills.
Set clear goals: Define what you want to achieve and create a plan to reach your objectives.
Prioritize tasks: Focus on the most important tasks first and manage your time effectively.
Maintain a positive attitude: Stay motivated, be proactive, and approach challenges w...
I applied via Naukri.com and was interviewed before Sep 2022. There were 3 interview rounds.
Diagrammatically Reasoning questions ask him
I applied via campus placement at Uttar Pradesh Technical University, Lucknow and was interviewed in Jun 2019. There were 4 interview rounds.
Speed can be controlled by adjusting the pressure of the fluid or gas that powers the system.
Pressure can be increased or decreased to control the speed of a system.
This is commonly used in hydraulic and pneumatic systems.
For example, in a hydraulic system, increasing the pressure of the fluid can increase the speed of a cylinder.
Similarly, in a pneumatic system, increasing the pressure of the gas can increase the spee...
Hydraulic refers to the use of fluids to transmit power or energy.
Hydraulic systems use liquids such as oil or water to transmit power.
Examples include hydraulic brakes in cars and hydraulic lifts in buildings.
Failure can occur due to leaks, blockages, or mechanical issues.
Regular maintenance and inspection can prevent failure and ensure proper functioning.
PLC stands for Programmable Logic Controller. It is a digital computer used for automation of electromechanical processes.
PLC is used to control and monitor industrial processes.
It is programmed using ladder logic or other programming languages.
PLC can be used for various applications such as controlling traffic lights, assembly lines, and HVAC systems.
It can communicate with other devices and systems through various c...
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I was interviewed in Jan 2025.
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