POSOCO Interview preparation & actual Interview Questions Electrical Branch


POSOCO Interview preparation & actual Interview Questions Electrical Branch


Dear POSOCO Interview aspirants,
Here below are the POSOCO Electrical Interview questions (Previously asked). POSOCO interview panel focuses mainly on your subject knowledge and up to some extent Practical knowledge.
Most of the questions in technical are related to the candidates' projects, internships, and power systems subject related.



  • What are different controls of Power System?

  • What is Automatic Generation Control?

  • ) How is DC motor started?

  • Why 4-point starter is used over 3-point starter?

  • Describe methods of speed control of DC motor.

  • Can you give some applications of BLDC motor?

  • BLDC used in refrigerators in India or Western Countries?

  • What do you mean by Energy Management Systems?

  • What are the different types of HVDC?

  • What is the difference between a thyristor and IGBTs?

  • What is Line commutated HVDC?

  • What is Voltage Source Commutated HVDC?

  • What type of power plant is NEEPCO and what is used as fuel?

  • Have you heard of Electricity Act, 2003? Explain.

  • What will happen if DC supply is applied to the transformer?

  • Types of transformer tests, power factor at open circuit test, etc.

  • How POSOCO works?

  • Explain power flow in detail from generation to distribution.

  • What is unit commitment decision and economic load dispatch?

  • What's superconductor? What's the resistance value?

  • What's transducer? Is solar cell a transducer? If yes, then how?

  • What the protection used for alternator ?

  • What is Ferranti Effect?

  • What is Surge Impedance Loading?

  • Do you have any idea about Power regulatory bodies in India?

  • What are the costs involved in the Power Systems?

  • Tell me the principle of operation of a synchronous motor.

  • What are different types of faults of Induction Motor which can be simulated by Induction Motor Fault Simulator?

  • Which motor is used for traction?

  • Can AC motor be used for this purpose?

  • Working of DC motor and transformer.



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