Exam Details
| Subject | Power System - I | |
| Paper | ||
| Exam / Course | B.Tech. VIEP- Electrical Engineering III (BTCSVI/BTECVI/BTELVI) | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2015 | |
| City, State | new delhi, |
Question Paper
1. A conductor consists of seven identical strands each having a radius of 1 cm. Calculate the Self GMD of the conductor.
<img src='./qimages/13188-1.jpg'>
2. What are the bundled conductors Discuss their advantages. Also explain the 'Skin effect' and 'Proximity effect' referred to overhead lines.
3. Calculate the C and D parameters for medium transmission line for nominal T-model.
4. Explain the Ferranti effect with the help of a phasor diagram. Also explain how the surge impedance loading affects the Ferranti effect.
5. What are the main causes of dielectric loss? Also derive the formula for dielectric power loss.
6. Calculate the sag for a span of 200 if the ultimate tensile strength of conductor is 8000 kgf. The weight of the conductor is 800 kgf/km. Allow factor of safety of two.
7. Draw the equivalent circuit and phasor diagram of short transmission line and calculate the voltage regulation of short transmission line.
Explain why the voltage distribution along a string of suspension insulators is normally non-uniform.
Define string efficiency. What is the necessity of having a high string efficiency? How can it be achieved
9. Derive the expression for the inductance of a symmetrical three-phase line. What is meant by the term equivalent spacing State its significance.
10.(a) Draw and explain the single-line diagram of a power system.
Write short notes on the following:
Spacing of conductors
Types of towers used for overhead line
<img src='./qimages/13188-1.jpg'>
2. What are the bundled conductors Discuss their advantages. Also explain the 'Skin effect' and 'Proximity effect' referred to overhead lines.
3. Calculate the C and D parameters for medium transmission line for nominal T-model.
4. Explain the Ferranti effect with the help of a phasor diagram. Also explain how the surge impedance loading affects the Ferranti effect.
5. What are the main causes of dielectric loss? Also derive the formula for dielectric power loss.
6. Calculate the sag for a span of 200 if the ultimate tensile strength of conductor is 8000 kgf. The weight of the conductor is 800 kgf/km. Allow factor of safety of two.
7. Draw the equivalent circuit and phasor diagram of short transmission line and calculate the voltage regulation of short transmission line.
Explain why the voltage distribution along a string of suspension insulators is normally non-uniform.
Define string efficiency. What is the necessity of having a high string efficiency? How can it be achieved
9. Derive the expression for the inductance of a symmetrical three-phase line. What is meant by the term equivalent spacing State its significance.
10.(a) Draw and explain the single-line diagram of a power system.
Write short notes on the following:
Spacing of conductors
Types of towers used for overhead line
Other Question Papers
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Subjects
- Active Filter Design
- Advanced Control System
- Advanced Power Electronics
- Applied Electromagnetics
- Basics Of Electrical Engineering
- Computer Process Control
- Control System
- Digital Electronics
- Electric Energy Utilization
- Electrical And Electronics Engineering Materials
- Electrical Instrumentation
- Electrical Machine - I
- Electrical Machines - Ii
- Electrical Machines And Electronics
- Electrical Measurements And Measuring Instruments
- Electro Mechanical Energy Conversion - I
- Electro-Mechanical Energy Conversion - Ii
- Electro-Mechanical Energy Conversion-Iii
- Electromagnetic Theory
- Energy Auditing And Analysis
- High Voltage Engineering
- Industrial Drives
- Micro Controllers
- Microprocessor And Applications
- Network Theory
- Power Quality Issues And Remedial Measures
- Power System
- Power System - I
- Stochastic Control Systems
- Switchgear And Protection