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An induction motor is an AC electric motor in which power is supplied to the rotor by electromagnetic induction.
Induction motors are widely used in various applications, including industrial machinery, household appliances, and transportation systems.
They work based on the principle of electromagnetic induction, where a rotating magnetic field is created by the stator winding, inducing current in the rotor.
The rotor of...
The stator is used in an induction motor to generate a rotating magnetic field.
The stator consists of a set of windings that are connected to an AC power source.
When the AC power is applied, the stator windings create a rotating magnetic field.
This rotating magnetic field induces currents in the rotor, which in turn creates a torque and causes the rotor to rotate.
The stator windings are typically made of copper or alum...
Transformers work on the principle of electromagnetic induction to transfer electrical energy between two or more circuits.
Transformers consist of two or more coils of wire called windings.
When an alternating current (AC) flows through the primary winding, it creates a changing magnetic field.
This changing magnetic field induces a voltage in the secondary winding, which is connected to the load.
The ratio of the number ...
There are two types of transformers according to voltage transfer: step-up transformers and step-down transformers.
Step-up transformers increase the voltage from the primary winding to the secondary winding.
Step-down transformers decrease the voltage from the primary winding to the secondary winding.
Step-up transformers are used in power transmission to increase voltage for long-distance transmission.
Step-down transfor...
A relay is an electrically operated switch that uses an electromagnet to mechanically control the switching action.
Relays are commonly used in electrical systems to control high power circuits with low power signals.
They consist of a coil, an armature, and one or more sets of contacts.
When the coil is energized, the armature is attracted and the contacts are closed or opened, depending on the relay type.
Relays can be u...
A contactor is an electrical device used for switching an electrical circuit on or off.
Contactor is used to control the flow of electricity in a circuit.
It consists of a coil, contacts, and an enclosure.
When the coil is energized, the contacts close and allow current to flow.
Contactor is commonly used in motor control applications.
Examples of contactor include magnetic contactor and air conditioning contactor.
MPCB and MCB are both circuit protection devices, but they differ in terms of their applications and trip characteristics.
MCB stands for Miniature Circuit Breaker, while MPCB stands for Motor Protection Circuit Breaker.
MCBs are primarily used for residential and commercial applications, while MPCBs are specifically designed for motor protection in industrial settings.
MCBs have a fixed trip current rating and are typica...
ELCB stands for Earth Leakage Circuit Breaker. It is a safety device used to protect electrical circuits from electric shock.
ELCB is designed to detect small leakage currents that may occur due to insulation failure or faulty wiring.
When an ELCB detects a leakage current, it quickly cuts off the power supply to prevent electric shock.
ELCBs are commonly used in homes, offices, and industries to ensure electrical safety.
...
There are several types of earthing used in electrical engineering.
The most common types of earthing are:
- TN-S system: separate neutral and protective earth
- TN-C system: combined neutral and protective earth
- TN-C-S system: combination of TN-S and TN-C systems
- TT system: separate earth for each electrical installation
- IT system: no direct connection to earth, relies on insulation monitoring
Other types include:
- TN-...
Neutral is a current-carrying conductor that completes an electrical circuit, while earth is a safety grounding conductor.
Neutral carries current back to the source in a balanced electrical system.
Earth is a safety measure to prevent electric shock and protect against electrical faults.
Neutral is typically connected to the center tap of a transformer, while earth is connected to the ground.
Neutral is part of the electr...
I applied via Recruitment Consulltant and was interviewed in Oct 2021. There was 1 interview round.
A full farm of PVC tape refers to a large quantity of PVC tape.
A full farm of PVC tape can be used for electrical insulation purposes.
It can also be used for bundling wires together.
PVC tape is commonly used in the electrical industry for various applications.
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posted on 25 Feb 2022
I applied via Referral and was interviewed before Feb 2021. There were 2 interview rounds.
posted on 8 Sep 2021
I applied via Campus Placement and was interviewed before Sep 2020. There were 3 interview rounds.
Steel is a metal alloy made primarily of iron and carbon.
Steel is known for its strength, durability, and versatility.
It is used in construction, manufacturing, transportation, and many other industries.
Different types of steel can be created by varying the amount of carbon and other elements added to the alloy.
Stainless steel, for example, contains chromium and nickel to resist corrosion.
Steel can also be recycled, ma
The Steel Making Process and Prerequisites for Making a Steel Water Bottle
The steel making process involves converting iron ore into steel through various stages such as smelting, refining, and casting
Prerequisites for making a steel water bottle include obtaining high-quality steel, designing the bottle, and manufacturing it through processes such as stamping and welding
The Hall Herault process is a method for produci...
I applied via Naukri.com and was interviewed in May 2021. There were 3 interview rounds.
I applied via Company Website and was interviewed before Sep 2021. There were 2 interview rounds.
I applied via Approached by Company and was interviewed before May 2021. There were 3 interview rounds.
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