Facor Alloys Electrical Engineer Interview Questions and Answers

Q1. Power factor What is vfd Difference between ac and dc motor
Ans. 
Power factor is the ratio of real power to apparent power in an AC circuit. VFD stands for Variable Frequency Drive. AC motors run on alternating current while DC motors run on direct current.
• Power factor is a measure of how effectively electrical power is being used in a circuit.

• It is calculated by dividing the real power (in watts) by the apparent power (in volt-amperes).

• A power factor of 1 indicates that all the pow...read more
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Q2. Types of load cell
Ans. 
Types of load cells include strain gauge load cells, hydraulic load cells, and capacitive load cells.
• Strain gauge load cells measure the strain or deformation of a material.

• Hydraulic load cells use hydraulic fluid to measure force.

• Capacitive load cells measure changes in capacitance to determine force.

• Other types of load cells include piezoelectric load cells and pneumatic load cells.
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Q1. Which type of protection used in a substation
Ans. 
Different types of protection are used in a substation to ensure safety and reliability.
• Overcurrent protection: Protects against excessive current flow.

• Overvoltage protection: Safeguards against high voltage surges.

• Differential protection: Detects faults by comparing currents entering and leaving the substation.

• Distance protection: Protects transmission lines based on the distance to the fault.

• Ground fault protection: ...read more
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Q2. Which type of ht breaker used in ht line
Ans. 
Different types of HT breakers are used in HT lines depending on the specific requirements.
• Air Circuit Breaker (ACB) is commonly used in HT lines for its high breaking capacity and quick response time.

• Vacuum Circuit Breaker (VCB) is another popular choice due to its compact size and low maintenance requirements.

• SF6 Circuit Breaker is used for high voltage applications as it provides excellent arc quenching properties.

• O...read more
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Q1. Electrical maintenance
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Q2. Crane maintenance
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Q1. Have clear understanding of basic Electrical concept & Practice to have interview in English .
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MCQ Question of total 10 question

Q1. What do you mean by Reverse Arc Flashing on ACB Breaker
Ans. 
Reverse arc flashing on ACB breaker refers to the phenomenon where the arc flash occurs on the opposite side of the contacts during the opening operation.
• Reverse arc flashing happens when the arc flash occurs on the side of the contacts opposite to the normal direction during the opening operation of the ACB breaker.

• This phenomenon can be caused by factors such as high fault currents, improper maintenance, or inadequat...read more
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Q1. Why you want to leave your present company
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Electrical & technical qustion

Q1. DOL &Star delta starter ckt daigram
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Q2. Drives & motor working
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Q3. Porsanal skills
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