Exam Details
| Subject | power electronics | |
| Paper | ||
| Exam / Course | b.e(electrical and electronics engineering) | |
| Department | ||
| Organization | SETHU INSTITUTE OF TECHNOLOGY | |
| Position | ||
| Exam Date | May, 2017 | |
| City, State | tamil nadu, pulloor |
Question Paper
Reg. No.
B.E. B.Tech. DEGREE EXAMINATION, MAY 2017
Elective
Electrical and Electronics Engineering
01UEE914 POWER QUALITY
(Regulation 2013)
Duration: Three hours Maximum: 100 Marks
Answer ALL Questions
PART A (10 x 2 20 Marks)
1. What are the reasons for voltage imbalances?
2. What is the need for power quality standards?
3. What is the importance of voltage sag estimation?
4. What is the voltage interruption threshold?
5. Define Ferro resonance.
6. List the sources of over voltages.
7. List the harmonic indices.
8. Name the devices for controlling harmonic distortion.
9. What is the use of Flicker meter?
10. List the disturbances that can be analyzed by power line disturbance analyzer.
PART B x 16 80 Marks)
11. What are the impacts of transient on power quality? Classify the transients that occur in a power system.
Question Paper Code: 31387
2
31387
Discuss about the Computer Business Equipment Manufacturer Associations (CBEMA). Curve stating the events described in the curve.
Or
Explain the following power quality issues in detail with examples:
Power Frequency Variation.
Voltage Swell.
12. Explain active series compensators for suppression of voltage sag.
Explain the solid state transfer switch with the transfer operation.
Or
Describe the procedure for estimating voltage sag caused by induction motor starting.
Explain briefly any one voltage sag mitigation technique with necessary circuit diagram and waveform.
13. Discuss different methods of protection of transformers and cables against voltage transients.
Or
Describe the computer analyzing tool EMTP for transient analysis.
14. Discuss the characteristics of harmonics generated by different types of industrial loads.
Or
Discuss in detail about IEC Standards on Harmonics.
15. Explain the features and operation of spectrum analyzer and flicker meter in detail.
Or
Explain different monitoring and diagnostic techniques for various power quality problems.
B.E. B.Tech. DEGREE EXAMINATION, MAY 2017
Elective
Electrical and Electronics Engineering
01UEE914 POWER QUALITY
(Regulation 2013)
Duration: Three hours Maximum: 100 Marks
Answer ALL Questions
PART A (10 x 2 20 Marks)
1. What are the reasons for voltage imbalances?
2. What is the need for power quality standards?
3. What is the importance of voltage sag estimation?
4. What is the voltage interruption threshold?
5. Define Ferro resonance.
6. List the sources of over voltages.
7. List the harmonic indices.
8. Name the devices for controlling harmonic distortion.
9. What is the use of Flicker meter?
10. List the disturbances that can be analyzed by power line disturbance analyzer.
PART B x 16 80 Marks)
11. What are the impacts of transient on power quality? Classify the transients that occur in a power system.
Question Paper Code: 31387
2
31387
Discuss about the Computer Business Equipment Manufacturer Associations (CBEMA). Curve stating the events described in the curve.
Or
Explain the following power quality issues in detail with examples:
Power Frequency Variation.
Voltage Swell.
12. Explain active series compensators for suppression of voltage sag.
Explain the solid state transfer switch with the transfer operation.
Or
Describe the procedure for estimating voltage sag caused by induction motor starting.
Explain briefly any one voltage sag mitigation technique with necessary circuit diagram and waveform.
13. Discuss different methods of protection of transformers and cables against voltage transients.
Or
Describe the computer analyzing tool EMTP for transient analysis.
14. Discuss the characteristics of harmonics generated by different types of industrial loads.
Or
Discuss in detail about IEC Standards on Harmonics.
15. Explain the features and operation of spectrum analyzer and flicker meter in detail.
Or
Explain different monitoring and diagnostic techniques for various power quality problems.
Subjects
- ac machines
- analog integrated circuits
- applied digital signal processing
- communication engineering
- conservation
- control systems
- data structures and algorithms
- dc machines and transformers
- digital logic circuits
- electric drives and control
- electric power utilization and energy
- electrical machine design
- electrical measurements and instrumentation
- environmental science and engineering
- field theory
- flexible ac transmission system
- fuzzy logic and neural networks
- high voltage engineering
- hvdc transmission
- microprocessors and microcontroller programming
- non-conventional energy resources
- numerical methods
- power electronics
- power plant engineering
- power system analysis
- power system operation and control
- programmable logic controller and scada
- project management and finance
- protection and switch gear
- qualitative and quantitative aptitude
- semiconductor devices and circuits
- special electrical machines
- transforms and partial differential equations
- transmission and distribution
- value education and human rights