Exam Details
| Subject | Electro Mechanical Energy Conversion - I | |
| 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 | December, 2016 | |
| City, State | new delhi, |
Question Paper
1. Write short notes on any two of the following:
Armature Reaction
Speed -torque characteristics of a d.c. series motor
Swinburne's method and no load losses
Explain the commutation process of a d.c. generator.
Discuss how the effects of armature reaction are decreased using high reluctance pole tips.
Explain the speed -torque characteristics of a d.c. shunt motor.
Discuss series-parallel field control for a d.c. series motor.
4. Explain the Ward Leonard method of speed control for d.c. motors with neat schematic diagram.
A d.c. shunt motor with an armature circuit resistance of 0:3 ohm operates a hoist whose efficiency is 70%. Calculate the armature current while raising a load of 800 kg at a speed of 3 m/sec.
If supply voltage falls from 230 V to 190 determine the hoist speed.
6. With the help of a neat schematic diagram, explain in detail Swinburne's test of d.c. machines.
7. Explain the diagram for Hopkinson's test for d.c. shunt machines, in detail.
Give the advantages of a 4-point starter over a 3-point starter.
Explain the construction and working of autotransformer.
9. Explain Sumpner's test for single-phase transformers with the help of a neat schematic diagram.
10. Explain the parallel operation and loading sharing of three phase transformers.
Armature Reaction
Speed -torque characteristics of a d.c. series motor
Swinburne's method and no load losses
Explain the commutation process of a d.c. generator.
Discuss how the effects of armature reaction are decreased using high reluctance pole tips.
Explain the speed -torque characteristics of a d.c. shunt motor.
Discuss series-parallel field control for a d.c. series motor.
4. Explain the Ward Leonard method of speed control for d.c. motors with neat schematic diagram.
A d.c. shunt motor with an armature circuit resistance of 0:3 ohm operates a hoist whose efficiency is 70%. Calculate the armature current while raising a load of 800 kg at a speed of 3 m/sec.
If supply voltage falls from 230 V to 190 determine the hoist speed.
6. With the help of a neat schematic diagram, explain in detail Swinburne's test of d.c. machines.
7. Explain the diagram for Hopkinson's test for d.c. shunt machines, in detail.
Give the advantages of a 4-point starter over a 3-point starter.
Explain the construction and working of autotransformer.
9. Explain Sumpner's test for single-phase transformers with the help of a neat schematic diagram.
10. Explain the parallel operation and loading sharing of three phase transformers.
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)
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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