Essar Power Deputy Manager Interview Questions and Answers

Written exam conducted for commonly about 200 students.

Q1. Trade related exam conducted commonly to all the students.
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Q2. What are the Transformer losses??
Ans. 
Transformer losses are the energy losses that occur in a transformer during the process of energy transfer.
• There are two types of transformer losses: copper losses and iron losses.

• Copper losses occur due to the resistance of the transformer windings and are proportional to the square of the current flowing through the windings.

• Iron losses occur due to the magnetic properties of the transformer core and are constant reg...read more
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Q3. Working principle of induction motor
Ans. 
Induction motor works on the principle of electromagnetic induction.
• The stator of the motor produces a rotating magnetic field.

• This magnetic field induces a current in the rotor, which in turn produces its own magnetic field.

• The interaction between the two magnetic fields causes the rotor to rotate.

• Induction motors are commonly used in industrial applications due to their reliability and low maintenance.

• They are also u...read more
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Q4. Difference between DC and AC
Ans. 
DC is a constant flow of electricity in one direction while AC is a flow of electricity that periodically reverses direction.
• DC stands for Direct Current while AC stands for Alternating Current

• DC is commonly used in batteries and electronic devices while AC is used in homes and businesses for powering appliances and lighting

• AC can be transmitted over long distances with less energy loss compared to DC

• AC can be easily c...read more
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