Download GTU BE/B.Tech 2018 Winter 8th Sem New 2180911 Power Quality And Management Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 8th Sem New 2180911 Power Quality And Management Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VIII (NEW) EXAMINATION ? WINTER 2018
Subject Code: 2180911 Date: 15/11/2018

Subject Name: Power Quality And Management

Time: 02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks

MARKS

Q.1 (a) List the sources of harmonics in power system.

03
(b) What is Electromagnetic Interference (EMI)? Describe
main sources of EMI.


04
(c) Name and explain different types of power quality issues in brief.



07

Q.2 (a) List out the various instruments used for power quality
measurement.
03
(b) Define flicker. List reasons responsible for flicker.

04
(c) Explain EMI mitigation methods in detail.

07
OR
(c) Explain effect of harmonics on (1) transformers and (2) capacitor
banks.


07
Q.3 (a) Discuss the sources of voltage sag.

03
(b) Write short note on voltage regulators.

04
(c) Explain the responsibilities of the suppliers and users of electrical
power.
07
OR
Q.3 (a)
Differentiate grounding and bonding.

03
(b) Explain power quality issues with a system containing DG. 04
(c) List and explain different power quality issues affected by DG.


07
Q.4 (a) Explain active and reactive power factor in brief. 03
(b) Define displacement power factor and true power factor and list out
the different methods for power factor improvement.
04
(c) Explain application of synchronous condensers for power factor
improvement.
07
OR
Q.4 (a) Write a note on harmonic analyzer.

03
(b) Discuss the Capacitor switching transient.

04
(c) Mention the types and causes of transients and explain any two in
brief.


07
Q.5 (a) State the essential elements of a grounding system. 03
(b) Write short note on importance and application of True RMS meter.

04
(c) Explain application of Ferro resonance transformer.


07
OR

Q.5 (a) Define the following terms. (1) Inrush current (2) Bonding (3) Form
factor.
03
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1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VIII (NEW) EXAMINATION ? WINTER 2018
Subject Code: 2180911 Date: 15/11/2018

Subject Name: Power Quality And Management

Time: 02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks

MARKS

Q.1 (a) List the sources of harmonics in power system.

03
(b) What is Electromagnetic Interference (EMI)? Describe
main sources of EMI.


04
(c) Name and explain different types of power quality issues in brief.



07

Q.2 (a) List out the various instruments used for power quality
measurement.
03
(b) Define flicker. List reasons responsible for flicker.

04
(c) Explain EMI mitigation methods in detail.

07
OR
(c) Explain effect of harmonics on (1) transformers and (2) capacitor
banks.


07
Q.3 (a) Discuss the sources of voltage sag.

03
(b) Write short note on voltage regulators.

04
(c) Explain the responsibilities of the suppliers and users of electrical
power.
07
OR
Q.3 (a)
Differentiate grounding and bonding.

03
(b) Explain power quality issues with a system containing DG. 04
(c) List and explain different power quality issues affected by DG.


07
Q.4 (a) Explain active and reactive power factor in brief. 03
(b) Define displacement power factor and true power factor and list out
the different methods for power factor improvement.
04
(c) Explain application of synchronous condensers for power factor
improvement.
07
OR
Q.4 (a) Write a note on harmonic analyzer.

03
(b) Discuss the Capacitor switching transient.

04
(c) Mention the types and causes of transients and explain any two in
brief.


07
Q.5 (a) State the essential elements of a grounding system. 03
(b) Write short note on importance and application of True RMS meter.

04
(c) Explain application of Ferro resonance transformer.


07
OR

Q.5 (a) Define the following terms. (1) Inrush current (2) Bonding (3) Form
factor.
03
2
(b) List out the power quality terminology. 04
(c) Explain the main steps to monitor the power quality problems at site.

07

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