Exam Details
| Subject | protection and switch gear | |
| Paper | ||
| Exam / Course | b.e(electrical and electronics engineering) | |
| Department | ||
| Organization | SETHU INSTITUTE OF TECHNOLOGY | |
| Position | ||
| Exam Date | May, 2017 | |
| City, State | tamil nadu, pulloor |
Question Paper
Reg. No.
B.E. B.Tech. DEGREE EXAMINATION, MAY 2017
Fifth Semester
Electrical and Electronics Engineering
01UEE505 PROTECTION AND SWITCHGEAR
(Regulation 2013)
Duration: Three hours Maximum: 100 Marks
Answer ALL Questions
PART A (10 x 2 20 Marks) 1. Show the need for protective schemes in power system. 2. Identify the different types of faults occurring in power system? 3. Define under frequency relay. 4. State R-X diagram.
5. What are the limitations of Buchholz relay? 6. Why bus bar protection is needed? 7. Define static relay. 8. Define the Over Current Protection. 9. What is meant by electro negativity of SF6 gas?
10. What are the indirect methods of circuit breaker testing?
Question Paper Code: 31355
2
31355
PART B x 16 80 Marks)
11. Explain in detail the nature and causes of faults.
Or
Discuss and compare the various methods of neutral earthing.
12. With the neat diagram explain the construction and operation of an induction type directional over current relay.
Or
Explain the general working of a relay and derive the fundamental torque equation.
13. Explain the types of protective schemes employed for the protection of transmission line.
Or
Explain in detail the abnormal running condition of generator.
14. Explain with neat block diagram of the function of synthesis of mho relay using static phase comparator.
Or
Illustrate with neat block diagram of numerical transformer differential protection.
15. With neat sketch, describe the working principle of an axial air blast type circuit breaker.
Or
What are the different methods of testing of circuit breakers? Discuss their merits and demerits.
B.E. B.Tech. DEGREE EXAMINATION, MAY 2017
Fifth Semester
Electrical and Electronics Engineering
01UEE505 PROTECTION AND SWITCHGEAR
(Regulation 2013)
Duration: Three hours Maximum: 100 Marks
Answer ALL Questions
PART A (10 x 2 20 Marks) 1. Show the need for protective schemes in power system. 2. Identify the different types of faults occurring in power system? 3. Define under frequency relay. 4. State R-X diagram.
5. What are the limitations of Buchholz relay? 6. Why bus bar protection is needed? 7. Define static relay. 8. Define the Over Current Protection. 9. What is meant by electro negativity of SF6 gas?
10. What are the indirect methods of circuit breaker testing?
Question Paper Code: 31355
2
31355
PART B x 16 80 Marks)
11. Explain in detail the nature and causes of faults.
Or
Discuss and compare the various methods of neutral earthing.
12. With the neat diagram explain the construction and operation of an induction type directional over current relay.
Or
Explain the general working of a relay and derive the fundamental torque equation.
13. Explain the types of protective schemes employed for the protection of transmission line.
Or
Explain in detail the abnormal running condition of generator.
14. Explain with neat block diagram of the function of synthesis of mho relay using static phase comparator.
Or
Illustrate with neat block diagram of numerical transformer differential protection.
15. With neat sketch, describe the working principle of an axial air blast type circuit breaker.
Or
What are the different methods of testing of circuit breakers? Discuss their merits and demerits.
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- ac machines
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- communication engineering
- conservation
- control systems
- data structures and algorithms
- dc machines and transformers
- digital logic circuits
- electric drives and control
- electric power utilization and energy
- electrical machine design
- electrical measurements and instrumentation
- environmental science and engineering
- field theory
- flexible ac transmission system
- fuzzy logic and neural networks
- high voltage engineering
- hvdc transmission
- microprocessors and microcontroller programming
- non-conventional energy resources
- numerical methods
- power electronics
- power plant engineering
- power system analysis
- power system operation and control
- programmable logic controller and scada
- project management and finance
- protection and switch gear
- qualitative and quantitative aptitude
- semiconductor devices and circuits
- special electrical machines
- transforms and partial differential equations
- transmission and distribution
- value education and human rights