Exam Details
| Subject | E l e c t r i c a l M a c h i n e T h e o r y I I | |
| Paper | ||
| Exam / Course | Diploma -VIEP-Electrical Engineering (DELVI)/Advanced Level Certificate Course In Electrical Engineering (ACELVI) | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2016 | |
| City, State | new delhi, |
Question Paper
Explain the constructional features of a squirrel cage 3-phase induction motor.
State the effects of increasing rotor resistance· on starting current and full load slip of an induction motor.
2. A 3-phase, 6-pole, 50 Hz induction motor has a slip of at no-load and at full load. Find:
Synchronous speed
No-load speed
Full load speed
Frequency of rotor current at standstill
Frequency of rotor current at full load
Draw and explain the torque -slip characteristic of a three-phase induction motor.
Discuss the synchronous impedance method for determination of voltage regulation of an alternator.
A 3-phase star-connected alternator is rated at 1500 kVA, 12000 V. The armature effective resistance and synchronous reactance are 2 ohms and 35 ohms respectively per phase. Calculate the percentage regulation for a load of 1200 kW at a power factor of
0·8. lagging.
0.8 leading.
4. Explain the speed control methods of a 3-phase induction motor.
Explain the working of a synchronous motor as a synchronous condenser.
5. Explain why the starting torque of a capacitor start induction run motor is better than that of a split phase induction motor.
Describe the construction and operation of a universal motor.
What is a servo motor Enumerate its advantages and applications.
List the applications of reluctance motor
List the applications of stepper motor.
7. Write short notes on any two of the following:
Autotransformer Starter for Three-phase Induction Motor
Linear Induction Motor
Hunting in Synchronous Motor
State the effects of increasing rotor resistance· on starting current and full load slip of an induction motor.
2. A 3-phase, 6-pole, 50 Hz induction motor has a slip of at no-load and at full load. Find:
Synchronous speed
No-load speed
Full load speed
Frequency of rotor current at standstill
Frequency of rotor current at full load
Draw and explain the torque -slip characteristic of a three-phase induction motor.
Discuss the synchronous impedance method for determination of voltage regulation of an alternator.
A 3-phase star-connected alternator is rated at 1500 kVA, 12000 V. The armature effective resistance and synchronous reactance are 2 ohms and 35 ohms respectively per phase. Calculate the percentage regulation for a load of 1200 kW at a power factor of
0·8. lagging.
0.8 leading.
4. Explain the speed control methods of a 3-phase induction motor.
Explain the working of a synchronous motor as a synchronous condenser.
5. Explain why the starting torque of a capacitor start induction run motor is better than that of a split phase induction motor.
Describe the construction and operation of a universal motor.
What is a servo motor Enumerate its advantages and applications.
List the applications of reluctance motor
List the applications of stepper motor.
7. Write short notes on any two of the following:
Autotransformer Starter for Three-phase Induction Motor
Linear Induction Motor
Hunting in Synchronous Motor
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
- Basics of Electrical Engineering
- C - Programming
- Computer Applications In P.S.
- Control Systems
- Digital Control System
- Digital Control System Design
- Dynamics System Simulation
- Electrical Circuit Theory
- Electrical Engineering Material
- Electrical Installation and System
- E l e c t r i c a l M a c h i n e T h e o r y I I
- Electrical Machines-I
- Electrical Measurements And Instruments
- Electrical Power Transmission and Distribution
- Energy Audit
- Flexible Ac Transmission System
- Industrial Drives and Controls
- Mechatronics
- Power Generation System
- Power Plant Economics And Centering
- Power System Reliability
- Principles of Computer Architecture
- Special Electrical Machines
- Switchgear And Protection
- Utilization Of Electrical Engineering