Download GTU BE/B.Tech 2019 Winter 8th Sem New 2182401 Power Electronics Applications Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 8th Sem New 2182401 Power Electronics Applications Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? VIII (New) EXAMINATION ? WINTER 2019
Subject Code: 2182401 Date: 27/11/2019

Subject Name: Power Electronics Applications
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) Explain merits and demerits of power electronics systems. 03
(b) Explain the role of power electronics in Fan Regulator. 04
(c) Write a technical note on: - Battery operated vehicles. 07
Q.2 (a) Explain the role of power electronics in washing machine. 03
(b) Give advantages of HVDC transmission system. 04
(c) Explain application of power electronics in satellite power supplies and
aircraft power supplies.
07
OR
(c) Explain induction heating application of power electronics converter. 07
Q.3 (a) Explain the Principle of Arc furnaces. 03
(b) Explain the static circuit breakers. 04
(c) Explain the functions of Power electronics converter in excavators & cement
mills applications.
07
OR
Q.3 (a) Draw block diagram of active power filter. 03
(b) What is the electroplating? 04
(c) List various methods of static VAR compensators and explain any one in
details.
07
Q.4 (a) Define basic four types of power processing converters. 03
(b) List out the advantages and disadvantages of variable speed drives. 04
(c) Explain the block diagram of electric motor drive. 07
OR
Q.4 (a) Compare Regenerative braking and Rheostatic braking mode for chopper
drives.
03
(b) Give classification of FACTs controllers. 04
(c) Explain the functions of Power electronics converter in rolling mills and
textile mills applications.
07
Q.5 (a) Draw the block diagram of SMPS. 03
(b) Give brief description of wind power plant. 04
(c) Explain the Principle of induction heating. Explain Arc furnace with
necessary diagrams.
07
OR

Q.5 (a) Give advantages of hybrid vehicle. 03
(b) Explain the reliability of power supply in aerospace systems. 04
(c) Explain speed control of BLDC motor with power electronics converter with
necessary diagrams.
07
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