Exam Details
| Subject | Industrial Drives | |
| Paper | ||
| Exam / Course | B.Tech. VIEP- Electrical Engineering III (BTCSVI/BTECVI/BTELVI) | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | June, 2015 | |
| City, State | new delhi, |
Question Paper
Classify the methods of speed control of motors.
Explain the working of phase lock loop speed control of drives with the help of a block diagram.
Explain the difference between the drives of loads with rotational motion and loads with translational motion.
What are the techniques used to sense the speed of motor in a drive system?
3. Explain the working of single phase fully controlled rectifiers for speed control of DC motors with the help of expressions, waveforms and schematic diagram.
4. A DC series motor, of the following rating:
Pnominal 3.73 kW, Vnominal 250
Inominal 20 Nnominal 1000 rpm,
is to lower a load with counter current braking at an armature current of Ia=1·5*Inominal and a speed of 200 rpm in one case and 300 rpm in another. Determine the additional resistance needed to be inserted in the armature circuit.
How can the speed of a dc motor be controlled with the help of a chopper?
Explain the difference between motoring and braking of dc motors.
6. Explain the working of a Voltage Source Inverter fed 3-phase induction motor drive with schematic, expressions and waveforms.
7. What is Pulse Width Modulation and how is it used in AC drive system?
8. A 220 three-phase, four-pole, 60 Hz, squirrel cage induction motor develops a maximum internal torque of 250% at a slip of when operating at rated voltage and frequency. If the effect of stator impedance is neglected, determine the maximum internal torque that the motor would develop, if it were operated at 200 50Hz.
9. Draw the schematic cum circuit diagram for closed loop speed control of a synchronous motor supplied by a cycloconverter. Also explain its working.
10. What is brushless dc motor drive? Also explain its applications.
Explain the working of phase lock loop speed control of drives with the help of a block diagram.
Explain the difference between the drives of loads with rotational motion and loads with translational motion.
What are the techniques used to sense the speed of motor in a drive system?
3. Explain the working of single phase fully controlled rectifiers for speed control of DC motors with the help of expressions, waveforms and schematic diagram.
4. A DC series motor, of the following rating:
Pnominal 3.73 kW, Vnominal 250
Inominal 20 Nnominal 1000 rpm,
is to lower a load with counter current braking at an armature current of Ia=1·5*Inominal and a speed of 200 rpm in one case and 300 rpm in another. Determine the additional resistance needed to be inserted in the armature circuit.
How can the speed of a dc motor be controlled with the help of a chopper?
Explain the difference between motoring and braking of dc motors.
6. Explain the working of a Voltage Source Inverter fed 3-phase induction motor drive with schematic, expressions and waveforms.
7. What is Pulse Width Modulation and how is it used in AC drive system?
8. A 220 three-phase, four-pole, 60 Hz, squirrel cage induction motor develops a maximum internal torque of 250% at a slip of when operating at rated voltage and frequency. If the effect of stator impedance is neglected, determine the maximum internal torque that the motor would develop, if it were operated at 200 50Hz.
9. Draw the schematic cum circuit diagram for closed loop speed control of a synchronous motor supplied by a cycloconverter. Also explain its working.
10. What is brushless dc motor drive? Also explain its applications.
Other Question Papers
Departments
- Centre for Corporate Education, Training & Consultancy (CCETC)
- Centre for Corporate Education, Training & Consultancy (CCETC)
- National Centre for Disability Studies (NCDS)
- School of Agriculture (SOA)
- School of Computer and Information Sciences (SOCIS)
- School of Continuing Education (SOCE)
- School of Education (SOE)
- School of Engineering & Technology (SOET)
- School of Extension and Development Studies (SOEDS)
- School of Foreign Languages (SOFL)
- School of Gender Development Studies(SOGDS)
- School of Health Science (SOHS)
- School of Humanities (SOH)
- School of Interdisciplinary and Trans-Disciplinary Studies (SOITDS)
- School of Journalism and New Media Studies (SOJNMS)
- School of Law (SOL)
- School of Management Studies (SOMS)
- School of Performing Arts and Visual Arts (SOPVA)
- School of Performing Arts and Visual Arts(SOPVA)
- School of Sciences (SOS)
- School of Social Sciences (SOSS)
- School of Social Work (SOSW)
- School of Tourism & Hospitality Service Sectoral SOMS (SOTHSM)
- School of Tourism &Hospitality Service Sectoral SOMS (SOTHSSM)
- School of Translation Studies and Training (SOTST)
- School of Vocational Education and Training (SOVET)
- Staff Training & Research in Distance Education (STRIDE)
Subjects
- Active Filter Design
- Advanced Control System
- Advanced Power Electronics
- Applied Electromagnetics
- Basics Of Electrical Engineering
- Computer Process Control
- Control System
- Digital Electronics
- Electric Energy Utilization
- Electrical And Electronics Engineering Materials
- Electrical Instrumentation
- Electrical Machine - I
- Electrical Machines - Ii
- Electrical Machines And Electronics
- Electrical Measurements And Measuring Instruments
- Electro Mechanical Energy Conversion - I
- Electro-Mechanical Energy Conversion - Ii
- Electro-Mechanical Energy Conversion-Iii
- Electromagnetic Theory
- Energy Auditing And Analysis
- High Voltage Engineering
- Industrial Drives
- Micro Controllers
- Microprocessor And Applications
- Network Theory
- Power Quality Issues And Remedial Measures
- Power System
- Power System - I
- Stochastic Control Systems
- Switchgear And Protection