Question Bank for Power System Design

  1. If power received is 100 MW and loss is 5 MW. What is the efficiency of Transmission line ?
  2. What is corona. Write its advantages and disadvantages ?
  3. Write different factors affecting transmission line sag.
  4. What is surge impedance loading.
  5. What’s is power system earthing and its different types.
  6. Write the differences between HVDC and HVAC system.
  7. Why stability of HVDC is better than HVAC system?
    • [Hint: Draw power transfer capability vs distance curve.
  8. Draw the relative cost of AC and DC transmission lines vs distance.
  9. Related to above question, what is breakaway distance ?
  10. Write advantages and disadvantages of HVDC Transmission System:.
  11. Write a note on bipolar HVDC system.