B.TECH.
POWER QUALITY
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THEORY EXAMINATION (SEM–VIII) 2016-17
Time: 3 Hours
Max. Marks : 100
Note: Be precise in your answer. In case of numerical problem assume data wherever not provided.
SECTION – A
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1. Explain the following:
10 x 2 = 20
- (a) What is the meaning of the term “Power Quality".
- (b) Define the term “Voltage Swell “.
- (c) What are the Sources of Electrical Transients in Power System
- (d) Define the terms Notching and Harmonics
- (e) What is Flicker meter?
- (f) What could be the impact of “Poor Power Quality” on systems efficiency, reliability and operation?
- (g) What is 'CUSTOM POWER'?
- (h) Define any two types of devices used for over voltage protection.
- (i) What are the causes of voltage and current harmonics?
- (j) Explain how power quality issue ‘Voltage regulation' affected by distributed Generation.
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SECTION - B
2. Attempt any five of the following questions:
5 x 10 = 50
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- (a) Discuss the working of Active Series compensator.
- (b) Discuss the different types of Waveform distortion
- (c) What is the Meaning of "Voltage Sag"? What are the causes of the Voltage Sag in a power System?
- (d) What are the different types of Electrical Transients occur in a Power System?
- (e) Discuss the Effect of Harmonics on the Transformers and AC motors in details
- (f) Discuss the Harmonics Mitigation Techniques in Detail.
- (g) Explain the different types of Network reconfiguration devices with a circuit diagram.
- (h) What are the requirements needed to minimize the voltage disturbance? Identify the location of these.
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SECTION-C
Attempt any two of the following questions:
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2 x 15 = 30
3. What are the Causes of Voltage and Current Harmonics? Discuss the Harmonics Measurement Techniques.
4. With suitable block diagram, explain the working difference between “On-line UPS” and “Off-line UPS".
5. Discuss the load compensation and Voltage Regulation using DSTATCOM.
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This download link is referred from the post: AKTU B-Tech Last 10 Years 2010-2020 Previous Question Papers || Dr. A.P.J. Abdul Kalam Technical University
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