00000EE465121906 Pages: 2

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Seventh Semester B.Tech Degree Examination (Regular and Supplementary), December 2020

Course Code: EE465
Course Name: Power Quality
Max. Marks: 100 Duration: 3 Hours
PARTA
Answer all questions, each carries 5 marks. Marks
1 Define power quality .What are the sources of power quality? (5)
2 Define TIF and C-message weight factor. (5)
3 Define windowing. How window function can be used for harmonic (5)
analysis?
4 What is the operation of spectrum analyzer? (5)
5 What are the advantages and disadvantages of passive filter? (5)
6 Explain hybrid filters. (5)
7 Explain common mode noise and transverse mode noise. (5)
8 Explain about high frequency EMI sources. (5)
PART 13
Answer any two full questions, each carries 10 marks.
9 Explain in detail about different power quality issues. (10)
10 a) With the help of waveform explain the term DC offset. (4)
b) Explain the terms THD & DIN. How are they related to each other? (6)
11 Explain about different sources of harmonics in electrical distribution (10)
system.
PART C
Answer any two full questions, each carries 10 marks.
12 ஐ Let f(x) bea function of period 27 such that (10)
f(x) = 1,-1= 0, 0> ‏ع:‎ > ॥
Sketch a graph of f(x) in the interval - 27 > x > 27. Find the Fourier series
of f(x).
13 a) What is meant by aliasing? (4)
b) Write short note on the power quality Monitoring Considerations. (6)

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