e)_auque.pdfstudents3k.com anna university of technology, b.e / b.tech, degree examinations : nov /...

www.5starnotes.com

www.5starnotes.com

www.5starnotes.com

http://5starnotes.com/


http://www.5starnotes.com/


Students3k.com ANNA UNIVERSITY OF TECHNOLOGY,

B.E / B.TECH, DEGREE EXAMINATIONS : NOV / DEC 2011

REGULATIONS : 2008

SEVENTH SEMESTER - EEE

080280064 – POWER QUALITY ENGINEERING

Time : 3 Hours Max.

Marks : 100

PART – A

( 10 * 2 = 20 MARKS )

ANSWER ALL QUESTIONS

1) Define power quality.

2) What are the power quality issues?

3) State the causes of sag and swells.

4) List out the IEEE and IEC standards.

5) Define the various devices for over voltages protection.

6) Define the lightning phenomena.

7) What is the effect transfer due to harmonics.

8) What is the need for power quality monitoring factor.

9) What the causes for long interruptions?

10) Define the Active filter.

PART – B

( 5 * 16 = 80 MARKS )

ANSWER ALL QUESTIONS

11) (a) (i) Explain the characteristics of power quality events in Short duration variations and

Long duration.

(ii) Discuss in detail about transients.

( OR )

(b) Explain the various types of power quality disturbances and its impact on power quality.

http://students3k.com/

12) (a) (i) Discuss the origin of short interruption.

(ii) How will you monitor the short in interruption? Explain.

( OR )

(b) Explain the principle of regulating the voltage and the operation of voltage regulating

devices.

13) (a) what are the different voltage sag migration techniques? Explain in detail.

( OR )

(b) (i) Name the different sources of transient over voltages and explain the capacitor

switching transient.

(ii) Explain in detail the mechanism of lightning transient.

14) (a) (i) Explain the power system response characteristics under the presence of harmonics.

(ii) What is the need of locating harmonic sources?

( OR )

(b) Explain briefly about the phenomena of current distortion and the voltage distortion

under the presence of harmonics.

15) (a) Draw the block diagram of advanced power quality monitoring systems and explain.

( OR )

(b) Explain briefly about the power conditioning equipment.

*** THE END ***

Students3k.com

http://students3k.com/

www.rejinpaul.com

www.rejinpaul.comwww.rejinpaul.comwww.rejinpaul.comwww.rejinpaul.comwww.rejinpaul.comwww.rejinpaul.com

www.rejinpaul.comwww.rejinpaul.comwww.rejinpaul.comwww.rejinpaul.comwww.rejinpaul.com









www.rejinpaul.com

e)_auque.pdfstudents3k.com anna university of technology, b.e / b.tech, degree examinations : nov /...

Documents