Power System 1 Imp Gtu

POWER SYSTEM 1 IMP Q/A
GTU MEDIUM
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GTU MEDIUM 1
GUJARAT TECHNOLOGICAL UNIVERSITY
BE – Electrical Engineering
SEMESTER–IV
Subject Code:3140914
Subject Name:Power System- I
Total Marks:70
1. Explain with schematic arrangement of steam power station.

2. Explain different types of turbines used in hydro power station.
3. Give comparison of steam power station and hydro power station.
4. Explain with neat sketch the construction of cables.
5. Explain advantages and disadvantages of gas turbine power plant.
6. Enlist different types of nuclear reactors. Explainworking of pressurized water nuclear
reactor with suitable diagram.
7. Give comparison between conventional power plant and solar thermal power plant.
8. Draw block diagram of nuclear power station and explain working of nuclear station
including chain reaction.
9. Write short notes on Doubly Fed Induction Generator (DFIG).
10. Compare AC and DC supply systems.
11. What are the different methods of neutral grounding? Explain solid grounding. State
its advantage and disadvantages.
12. With equation find out the volume of conductor in case of 3- phase 3-wire system and
3-phase 4-wire system in overhead power transmission.
13. What is tariff? Discuss three part tariff.
14. What are the factors that affect the sag in the transmission line?
15. Derive condition for most economic size of conductor in an underground cable.
16. Explain the disadvantages of low power factor.
17. Differentiate between Horizontal and Vertical Axis Wind Turbine.
18. What is solar photovoltaic system? Discus its major components. Also state its
applications.
19. Enlist the power factor improvement methods and describe any one method.
20. Explain the advantages of high transmission line.
GTU MEDIUM 2
21. Define the sag in overhead line. Derive the equation of sag in case of When supports
are at equal and unequal level. Also find the sag during effect of wind and ice loading
22. Give comparison between overhead systems versus underground transmission
system.
23. Explain the effect of earth on capacitance.
24. Explain the inductance of three phase transmission line.
25. Define: Load factor, Demand factor and Diversity factor.
26. Discuss present power generation scenario in Gujarat and India with presenting
proper data.
27. Explain the steam power station with neat schematic diagram. Also discuss
advantages and disadvantages of steam power station. Also write the points, which
are considered during the site selection of steam power plant.
28. Explain load curve and load duration curve with their importance.
29. Compare steam power plant, hydro power plant and nuclear power plant.
30. Explain nuclear power plant with proper diagram. Also discuss advantages and
disadvantages of nuclear power plant.
31. A synchronous motor improves the power factor of a load of 200 kW from 0.8 lagging
to 0.9 lagging. Simultaneously the motor carries a load of 80 kW. Find (i) the leading
kVAR taken by the motor (ii) kVA rating of the motor and (iii) power factor at which
the motor operates.
32. Write merits and demerits of wind energy. Write the types of wind energy system.
33. Differentiate between horizontal and vertical axis wind turbine.
34. What is power factor? Discuss the methods of power factor improvement.
35. Define tariff. Write the types of tariff.
36. Discuss the comparison of overhead transmission system with underground
transmission system.
37. Explain Photovoltaic cell for electrical power generation.
38. Write applications of solar energy.
39. What are the causes of low power factor?
40. What is string efficiency? Explain methods of improving string efficiency.
41. (c) Calculate the capacitance of a 100 km long 3-phase, 50 Hz overhead transmission
line consisting of 3 conductors, each of diameter 2 cm and spaced 2.5 m at the corners
of an equivalent triangle.
For Power System Study Materials And Old Gtu Papers :

https://gtumedium.blogspot.com/2022/03/power-system-i-electrical-engineering.html
GTU MEDIUM 3

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POWER SYSTEM 1 IMP Q/A

Our Team Providing educational Material aiming to provide technical

Visit Us : GTU MEDIUM

GUJARAT TECHNOLOGICAL UNIVERSITY

Subject Name:Power System- I

1. Explain with schematic arrangement of steam power station.

For Power System Study Materials And Old Gtu Papers :

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