NDSS Academy

Switchgear and Protection (B.Tech)

Circuit breakers, protective relays and protection of generators, transformers and lines.

6 महीनेअवधि 5Chapters28टॉपिक
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सिलेबस · पाठ्यक्रम

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01Unit 1: Protective Relaying Fundamentals 6 टॉपिक
  1. Need for protection and protective zones
  2. Requirements: selectivity, speed, sensitivity, reliability
  3. Electromagnetic attraction and induction relays
  4. Overcurrent and IDMT relays
  5. Directional relays
  6. Primary and backup protection
02Unit 2: Distance, Differential and Static Relays 5 टॉपिक
  1. Impedance, reactance and mho relays
  2. Three-zone distance protection
  3. Differential and percentage differential relays
  4. Static relays: comparators
  5. Numerical relays
03Unit 3: Protection of Apparatus and Lines 5 टॉपिक
  1. Alternator protection: stator, rotor and loss of excitation
  2. Transformer protection: differential, Buchholz, restricted earth fault
  3. Bus-bar protection
  4. Transmission line protection: pilot wire and carrier
  5. Induction motor protection
04Unit 4: Circuit Interruption Theory 5 टॉपिक
  1. Arc formation and arc voltage
  2. High-resistance and current-zero interruption theories
  3. Restriking and recovery voltage, RRRV
  4. Current chopping and resistance switching
  5. Interruption of capacitive currents
05Unit 5: Circuit Breakers and Fuses 7 टॉपिक
  1. Oil circuit breakers
  2. Air-blast circuit breakers
  3. SF6 circuit breakers
  4. Vacuum circuit breakers
  5. Ratings: breaking, making and short-time current
  6. HRC fuses, MCB and MCCB
  7. Testing of circuit breakers

परिचय

आप यह कर पाएँगे

  • State the requirements of protective systems and explain relay operating principles
  • Explain overcurrent, directional, distance and differential relays including static and numerical relays
  • Select protection schemes for alternators, transformers, bus bars, lines and motors
  • Explain arc formation and interruption, restriking voltage, RRRV and current chopping
  • Compare oil, air-blast, SF6 and vacuum circuit breakers and HRC fuses
  • Calculate relay settings and circuit-breaker ratings

यह किसके लिए है

  • B.Tech Electrical Engineering students of Semester 7 under AKTU
  • Students preparing for AKTU examinations, GATE and power-utility job interviews

आपको क्या चाहिए

  • Power System-I and Power System-II

सवाल

Which syllabus is followed?

The current AKTU (Dr. A.P.J. Abdul Kalam Technical University, Lucknow) B.Tech syllabus of Switchgear and Protection (Electrical Engineering, Semester 7). If your university or college follows a different syllabus, the centre teaches from your own university syllabus.

How is the subject examined?

AKTU assesses it through sessional tests, assignments and attendance, and an end-semester university examination; the centre covers every unit with theory, derivations and numericals.

Are previous-year questions practised?

Yes. Unit-wise AKTU previous-year questions, short-answer questions and the test series are solved in class.

Download the syllabus (PDF)

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