Kanthwal Services Interview Questions and Answers

Q1. Electrical work in Vcb acb
Ans. 
Vcb and ACB are types of circuit breakers used in electrical work.
• Vcb stands for Vacuum Circuit Breaker and is used for medium voltage applications.

• ACB stands for Air Circuit Breaker and is used for high voltage applications.

• Both Vcb and ACB are used to protect electrical circuits from overloads and short circuits.

• Vcb is more compact and requires less maintenance compared to ACB.

• ACB is more suitable for industrial appl...read more
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Q2. Power plant in work
Ans. 
Power plant in work involves operating and maintaining power generation equipment to ensure efficient and reliable electricity production.
• Operate and monitor power generation equipment

• Perform routine maintenance and repairs

• Troubleshoot equipment malfunctions

• Ensure compliance with safety regulations

• Coordinate with other team members for efficient operation
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Q1. What is the process of tan delta testing?
Ans. 
Tan delta testing is a method used to measure the insulation quality of electrical equipment.
• Tan delta testing involves applying a voltage to the equipment and measuring the current flowing through the insulation.

• The test compares the phase angle between the voltage and current to determine the quality of the insulation.

• A high tan delta value indicates poor insulation quality, while a low value indicates good insulatio...read more
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Q2. What are the components of a transformer and how do they function?
Ans. 
A transformer consists of primary and secondary coils, a core, and insulation. It functions by transferring electrical energy between the coils through electromagnetic induction.
• Primary coil: receives electrical energy and creates a magnetic field

• Secondary coil: receives the induced magnetic field and converts it back to electrical energy

• Core: provides a path for the magnetic flux to flow between the coils

• Insulation: p...read more
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During the interview, I was fortunate to be asked many questions by Ranjan Garanayak. I answered him thoroughly, which made me very happy, as he approached the questions in a friendly manner. There were three individuals present, and they ultimately selected me after I responded to ten questions, believing I performed the best among all candidates.

Q1. 11 kv breaker work experience
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Q2. Transformer work
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Q1. Electrical basics and PLC logics
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Q2. RLC logic , Star Delta, DOL
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