Advanced Power Electronics (3170906) MCQs

MCQs of  FACTS devices

Showing 31 to 39 out of 39 Questions
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31.

Harmonics is __________________ type of PQ problem.

(a)

transients
(b)

wavefrom distortions
(c)

voltage flicker
(d)

frequency variations
Answer:

Option (b)

32.

In SR compensator the slope correcting capactor is connected in ______________ with saturated reactor.

(a)

series
(b)

parallel
Answer:

Option (a)

33.

In SR, the biasing shunt capacitor is equipped with small tuning inductors to provide

(a)

sub harmonic oscillations
(b)

slope correction
(c)

filtering of the remnant harmonics
(d)

lagging power factor range operation
Answer:

Option (c)

34.

FACTS employ _________ for switching.

(a)

High speed thyristor
(b)

Low speed thyristor
(c)

Rectifier
(d)

None of these
Answer:

Option (a)

35.

Which is (are) the advantage(s) of FACTS controllers?

(a)

Enhances controllability
(b)

Increase power transfer capability
(c)

Increase the reliability of AC grids
(d)

All of these
Answer:

Option (d)

36.

What is the main disadvantage of FACTS?

(a)

Very costly 
(b)

 Less costly
(c)

Enhance controllability 
(d)

None of these
Answer:

Option (a)

37.

Automatic generation control(AGC) controls

(a)

Frequency 
(b)

Steam/Water input
(c)

Torque
(d)

All of these
Answer:

Option (a)

38.

Unit of wave number (beta) is 

(a)

rad-km
(b)

rad-cm
(c)

rad/cm
(d)

rad/km
Answer:

Option (c)

39.

saturated reactor will generate harmonics of the order of 

(a)

16k ± 1
(b)

9k ± 1
(c)

18k ± 1
(d)

20k ± 1
Answer:

Option (b)

Showing 31 to 39 out of 39 Questions
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