ArcelorMittal Nippon Steel ITI Electrician Interview Questions, Process, and Tips

MCB working principle is to automatically switch off the electrical circuit during abnormal conditions like overload or short circuit.

• MCB detects abnormal conditions like overload or short circuit

• When abnormal condition is detected, MCB trips and disconnects the circuit

• MCB can be manually reset after tripping

• MCB provides protection to electrical circuits and appliances

MCCB stands for Molded Case Circuit Breaker.

• MCCB is a type of circuit breaker that is enclosed in a molded case.

• It is designed to protect electrical circuits from overloads and short circuits.

• MCCBs are commonly used in industrial and commercial applications.

• Examples of MCCB brands include Siemens, Schneider Electric, and ABB.

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, stator, and various components such as coils, magnets, and brushes.

• Examples of motors include electric

A capacitor is an electronic component that stores electrical energy in an electric field.

• Capacitors are used to filter out noise in electronic circuits.

• They can also be used to store energy temporarily, like in camera flashes.

• Capacitors are measured in farads (F) and come in various types such as electrolytic, ceramic, and tantalum.

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...read more

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...read more