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, 2016 | |
| City, State | new delhi, |
Question Paper
1. What are the advantages of electrical· drives State the essential parts of electrical drives. What are the functions of a Power Modulator?
2. Explain the operation of a closed loop speed control scheme with inner current control loop. What are various functions of inner current control loop
3. Explain how does a phase-locked loop speed control scheme operate. Enumerate applications of this scheme.
4. A fully-controlled rectifier-fed separately excited dc motor is required to operate in motoring and braking operations in the forward direction. Only one fully-controlled rectifier is available. What switching arrangement will be required Explain.
5. A separately excited dc motor is running on no load with weak field. Now the field current is increased. State and explain the various operations (braking, motoring) of the motor before it settles at a new steady-state speed.
6. Derive an equivalent circuit for the dc dynamic braking of an induction motor and explain why is it necessary to account for the saturation in the magnetic circuit. What are the important features of dc dynamic braking in relation to other methods of braking of induction motors?
7. What are the similarities between a brushless dc motor and a conventional dc motor Why is it known as brushless dc motor What are its advantages over a conventional dc motor?
8. Explain the slip power recovery schemes for slip ring induction motor drives.
9. Write short notes on any two of the following:
Load equalization in multimotor drive
Four quadrant operation of dc motor drive
CSI fed induction motor drive
2. Explain the operation of a closed loop speed control scheme with inner current control loop. What are various functions of inner current control loop
3. Explain how does a phase-locked loop speed control scheme operate. Enumerate applications of this scheme.
4. A fully-controlled rectifier-fed separately excited dc motor is required to operate in motoring and braking operations in the forward direction. Only one fully-controlled rectifier is available. What switching arrangement will be required Explain.
5. A separately excited dc motor is running on no load with weak field. Now the field current is increased. State and explain the various operations (braking, motoring) of the motor before it settles at a new steady-state speed.
6. Derive an equivalent circuit for the dc dynamic braking of an induction motor and explain why is it necessary to account for the saturation in the magnetic circuit. What are the important features of dc dynamic braking in relation to other methods of braking of induction motors?
7. What are the similarities between a brushless dc motor and a conventional dc motor Why is it known as brushless dc motor What are its advantages over a conventional dc motor?
8. Explain the slip power recovery schemes for slip ring induction motor drives.
9. Write short notes on any two of the following:
Load equalization in multimotor drive
Four quadrant operation of dc motor drive
CSI fed induction motor drive
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)
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- School of Health Science (SOHS)
- School of Humanities (SOH)
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- School of Law (SOL)
- School of Management Studies (SOMS)
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- School of Performing Arts and Visual Arts(SOPVA)
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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