Question Bank for An overview of power system

  1. Explain various method of power factor improvement.
  2. Explain nuclear  power plant with diagram.
  3. Explain pumped power plant with diagram and also explain different type of gas  power plant. Why it is necessary to have hydro power plant along with thermal power plant.
  4. Explain skin effect and proximity effect.
  5. A power station has maximum demand of 15000 KW. The annual load factor is 50% and plant capacity factor is 40%. Determine the reserve capacity of plant.
  6. The load on an installation is 800KW, 0.8 p.f which works for 3000 hours per annum. The tariff is RS 100 per KVA plus 20 paise per KWh. If the power factor is improved to 0.9 lagging by means of loss free capacitor costing RS 60 per KVAR. Calculate annual saving. Allow 10% per annum for intrest and depreciation on capacitor.
  7. In how many grid country is divided. Why all grids are connected. What is problem of India power grid ?
  8. Explain thermal power plant with diagram. How the problem of pollution can be eliminated in thermal power plant.
  9. Explain hydro power plant with diagram and explain different type of hydro power plant. Why it is necessary to have hydro power plant along with thermal power plant.
  10. Explain working of various type of nuclear power plant.
  11. It has been estimated that  a minimum run off approximately  94 m^3/s will be available at a hydraulic project with a head of 39 m. Determine (a) firm capacity (b) Yearly gross output. Efficiency of hydro power plant is 80%.
  12. Derive A,B,C,D parameter for medium transmission line.
  13. Describe Ferranti effect.
  14. What are the main components of a steam power plant ?
  15. Draw a proper diagram of stem power plant and explain.
  16. What are the advantages and disadvantages of hydropower plants ?
  17. Mechanical energy is supplied to a d.c. generator at the rate of 4200 J/s. The generator delivers 32.2 A at 120 V.
    • What is the percentage efficiency of the generator ?
    • How much energy is lost per minute of operation ?
    • Compare the three energy sources: water-power, fuel and nuclear energy
  18. What are the different types of sources of energy ?
  19. Discuss the generation of electrical energy.
  20. Why electrical energy is preferred over other energy ?
  21. Compare Thermal power plant, Hydro power plant and nuclear power plant.
  22. Where the hydro power plant can be established ?
  23. Draw and explain the working of nuclear power plant.
  24. What is the difference between load curve and load duration curve. Explain with a diagram.
  25. Define: Plant use factor, Plant capacity factor.
  26. Name and explain various types of loads.