Exam Details
| Subject | Switchgear And Protection | |
| 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, 2015 | |
| City, State | new delhi, |
Question Paper
1. Describe the construction, principle of operation and application of SF6 circuit breaker.
2. In a short circuit test on a 3-pole, 132 kV CB, the following observations are made:
p.f. of fault 0·4, the recovery voltage 0·9 times full line value, symmetrical breaking current, the frequency of oscillations of restriking voltage 16 kHz.
Assuming that neutral is grounded, determine the average rate of rise of restriking voltage (RRRV).
3. What is a travelling wave Explain the development of travelling wave and its propagation on overhead transmission lines.
4. Explain the causes and effects of lightning on overhead transmission lines.
5. What is meant by directional feature of a directional overcurrent relay Describe the construction and operation of a directional overcurrent relay.
6. Name different types of static relays. Discuss the use of transistors as static relays.
7. Describe the principle of Merz price protection applied to a power transformer.
8. Explain the method of protecting bus bars by differential relaying. What are the limitations of this system
9. Write short notes on any two of the following:
Circuit Breaker Ratings
Neutral Earthing
Numerical Relays
IEC Specifications of Switchgear
2. In a short circuit test on a 3-pole, 132 kV CB, the following observations are made:
p.f. of fault 0·4, the recovery voltage 0·9 times full line value, symmetrical breaking current, the frequency of oscillations of restriking voltage 16 kHz.
Assuming that neutral is grounded, determine the average rate of rise of restriking voltage (RRRV).
3. What is a travelling wave Explain the development of travelling wave and its propagation on overhead transmission lines.
4. Explain the causes and effects of lightning on overhead transmission lines.
5. What is meant by directional feature of a directional overcurrent relay Describe the construction and operation of a directional overcurrent relay.
6. Name different types of static relays. Discuss the use of transistors as static relays.
7. Describe the principle of Merz price protection applied to a power transformer.
8. Explain the method of protecting bus bars by differential relaying. What are the limitations of this system
9. Write short notes on any two of the following:
Circuit Breaker Ratings
Neutral Earthing
Numerical Relays
IEC Specifications of Switchgear
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