JNTUH B.Tech 4th year (4-1) Switch Gear and Protection gives you detail information of Switch Gear and Protection R13 syllabus It will be help full to understand you complete curriculum of the year.
Objective
This course introduces all varieties of Circuit Breakers and Relays for protection of Generators, Transformers and feeder bus bars from over voltages and other hazards. It emphasis on Neutral grounding for overall protection.
UNIT—I
Circuit Breakers: Circuit Breakers: Elementary principles of arc interruption, Recovery, Restriking Voltage and Recovery voltages.- Restriking Phenomenon, Average and Max. RRRV, Numerical Problems – Current Chopping and Resistance Switching – CB ratings and Specifications: Types and Numerical Problems. — Auto reclosures. Description and Operation of following types of circuit breakers: Minimum Oil Circuit breakers, Air Blast Circuit Breakers, Vacuum and SF6 circuit breakers.
UNIT—II
Electromagnetic and Static Relays: Principle of Operation and Construction of Attracted armature, Balanced Beam, induction Disc and Induction Cup relays. Relays Classification: Instantaneous, DMT and IDMT types. Application of relays: Over current! under voltage relays, Direction relays, Differential Relays and Percentage Differential Relays. Universal torque equation. Distance relays: Impedance, Reactance and Mho and Off-Set Mho relays, Characteristics of Distance Relays and Comparison. Static Relays: Static Relays verses Electromagnetic Relays.
UNIT – III
Generator & Transformer Protection: Protection of generators: against Stator faults, Rotor faults, and Abnormal Conditions. Restricted Earth fault and Inter-turn fault Protection, Numerical Problems on % Winding Unprotected. Protection of transformers: Percentage Differential Protection, Numerical Problem on Design of CT s Ratio, Buchholtz relay Protection.
TEXT BOOKS
- Switchgear and Protection, Sunil S Rao, Khanna Pubilishers.
- Protection and Switchgear, Bhavesh Bhalja, R. P. Mahesheari, Nilesh G. Chothani, Oxford University Press.
REFERENCE BOOKS
- Electrical Power Systems, C.L.Wadhwa, New Age international (P) Limited, Publishers.
- Power System Protection and Switchgear, Badari Ram, D.N Viswakarma, TMH Publications.
- Electrical Power System Protection, C. Christopoulos and A. Wright, Springer International.
- Electrical Power Systems, PSR. Murty, BS Publications.
- Power system protection and switch gear by Bhuvanesh Oza, TMH,
- A Text Book on Power System Engineering, M.L.Soni, P.V.Gupta, U.S.Bhatnagar, A.Chakrabarthy, Dhanpat Ral & Co Pvt. Ltd.
- A Textbook of Power System Engineering, R. K. Rajput, Laxmi Publications (P) Limited.
- Principles of Power Systems, V.K Mehta and Rohit Mehta S.Chand Company Pvt. Ltd.
Outcome
After going through this course the student gets a thorough knowledge on, various types of protective devices (circuit breakers, relays etc..) and their co-ordination, protection of generators, transformers, feeders, bus-bars, through different types of protective devices, overvoltage protection, lightening, concept of earthing and grounding, with which he/she can able to apply the above conceptual things to real-world electrical and electronics problems and applications.
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