Advanced Power Electronics (3170906) MCQs

MCQs of Multipulse Converters

Showing 21 to 28 out of 28 Questions
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21.

Ripple content in the output voltage of 12 pulse converter is __________ 6 pulse converter

(a)

less than
(b)

greater than
(c)

equal to
(d)

greater than or equal to
Answer:

Option (a)

22.

Harmonic content in the current on the secondary side of phase shifting transformer is  __________ the primary side current.

(a)

greater than
(b)

less than
(c)

equal to
(d)

less than or eqaul to
Answer:

Option (a)

23.

No. of three-phase windings required in the phase-shifting transformer of 18 pulse converter

(a)

2
(b)

3
(c)

4
(d)

5
Answer:

Option (c)

24.

Y/Z-1 transformer provides _____________ phase angle.

(a)

leading
(b)

lagging
Answer:

Option (a)

25.

How many Z winding connections are required in the construction of phase-shifting transformer of 24 pulse converter?

(a)

1
(b)

2
(c)

3
(d)

4
Answer:

Option (c)

26.

Which of the following multipulse converter does provide the lowest harmonic cancellation?

(a)

12 pulse converter 
(b)

18 pulse converter
(c)

24 pulse converter
(d)

30 pulse converter 
Answer:

Option (a)

27.

State whether the statement is true or false. Harmonic cancellation in the multipulse converter is because of PWM techniques.

(a)

True
(b)

False
Answer:

Option (b)

28.

Which of the following converter provides the lower order harmonic cancellation?

(a)

Inverter
(b)

Multilevel Inverter
(c)

Rectifier
(d)

Multipulse Converter
Answer:

Option (d)

Showing 21 to 28 out of 28 Questions
1 2 3