GTU BE/B.Tech 2018 Winter Question Papers || Gujarat Technological University
FirstRanker.com
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-VI (NEW) EXAMINATION - WINTER 2018
Subject Name:Industrial Drives & Control-I
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
3. Figures to the right indicate full marks.
Q.1 (a) Explain working Principle of DC Drives. 03
(b) State advantages of use solid state controls in DC Motors. 04
(c) Draw and Explain Static Ward Leonard System. 07
(b) Determine moment of inertia of a DC motor. 04
(c) Derive torque equation of DC motor indicating Dynamics of Electrical Drive. 07
OR
(c) Explain Quadrant diagram of Speed-Torque Characteristics. 07
(b) Enlist criteria of selection of DC motor. 04
(c) Explain closed loop speed control scheme of Separately Excited DC Motor for control of below and above base speed. 07
OR
(a) Give classification of DC drives. 03
(c) Explain Traction drive employing two-stage converter feeding four separately excited motors. 07
Q.4 (a) Draw the basic power circuit of chopper fed DC series motor drive. 03
(b) Discuss two quadrant chopperfed drive. 04
(c) Explain single phase semi-converter drives with continuous armature current. 07
(a) Explain important of Sensing and feeds back elements in closed loop control of dc drive 03
(b) Write a short note on selection of drive for speed reversal. 04
(c) Using block diagram & necessary flow chart explain working of microcomputer control of DC Drives. 07
Q.5 (a) Write a short note on selection of drive for speed reversal 03
(c) Explain PID controller for DC drives. 07
OR
(a) Explain the comparison between: Constant Torque and Constant HP Operation. 03
(b) Write a short note on requirement of servo motor drive. 04
FirstRanker.com
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-VI (NEW) EXAMINATION - WINTER 2018
--- Content provided by FirstRanker.com ---
Subject Code:2162404 Date:16/11/2018Subject Name:Industrial Drives & Control-I
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
--- Content provided by FirstRanker.com ---
2. Make suitable assumptions wherever necessary.3. Figures to the right indicate full marks.
Q.1 (a) Explain working Principle of DC Drives. 03
(b) State advantages of use solid state controls in DC Motors. 04
(c) Draw and Explain Static Ward Leonard System. 07
--- Content provided by FirstRanker.com ---
Q.2 (a) Explain steady state & transient stability of electric drive. 03(b) Determine moment of inertia of a DC motor. 04
(c) Derive torque equation of DC motor indicating Dynamics of Electrical Drive. 07
OR
(c) Explain Quadrant diagram of Speed-Torque Characteristics. 07
--- Content provided by FirstRanker.com ---
Q.3 (a) Give comparison between Active load torque & Passive load torque. 03(b) Enlist criteria of selection of DC motor. 04
(c) Explain closed loop speed control scheme of Separately Excited DC Motor for control of below and above base speed. 07
OR
(a) Give classification of DC drives. 03
--- Content provided by FirstRanker.com ---
(b) Draw 1-F fully controlled converter with freewheeling diode for Separately Excited DC Motor with its waveforms. 04(c) Explain Traction drive employing two-stage converter feeding four separately excited motors. 07
Q.4 (a) Draw the basic power circuit of chopper fed DC series motor drive. 03
(b) Discuss two quadrant chopperfed drive. 04
(c) Explain single phase semi-converter drives with continuous armature current. 07
--- Content provided by FirstRanker.com ---
OR(a) Explain important of Sensing and feeds back elements in closed loop control of dc drive 03
(b) Write a short note on selection of drive for speed reversal. 04
(c) Using block diagram & necessary flow chart explain working of microcomputer control of DC Drives. 07
Q.5 (a) Write a short note on selection of drive for speed reversal 03
--- Content provided by FirstRanker.com ---
(b) Explain the comparison between : In phase and phase shifted operation mode of multiphase chopper 04(c) Explain PID controller for DC drives. 07
OR
(a) Explain the comparison between: Constant Torque and Constant HP Operation. 03
(b) Write a short note on requirement of servo motor drive. 04
--- Content provided by FirstRanker.com ---
(c) Explain permanent magnet motor drive. 07FirstRanker.com
This download link is referred from the post: GTU BE/B.Tech 2018 Winter Question Papers || Gujarat Technological University
--- Content provided by FirstRanker.com ---