EE 602-POWER SYSTEMS-II |
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General layout of a typical coal fired power station, hydro electric power station, nuclear power station,
their components and working principles. Comparison of different methods of power generation.
Introduction to solar and wind energy systems.
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Nature of Faults in Electrical systems: |
Symmetrical fault: Short circuit of a synchronous machine with no load and load, Symmetrical components
transformation. Sequence impedance and sequence network of power system, synchronous machine,
transmission lines and transformers. Representation of sequence network of power system. Unsymmetrical
faults: Single line to ground, line to line, double line to ground fault. |
Power system dynamics: |
Steady state stability, transient stability, equal area criterion, swing equation, multimachine stability
concept.
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Load flow studies: |
Network model formation, formation of Y bus, load flow problems, Gauss-Siedel, Newton-Raphson, Fast
decupled methods and their comparison.
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Power System Protection: |
Protective zones, Relaying elements and quantities.
Protective relays: Basic requirements and type of protection, phase and amplitude comparator. Grading
(time & current), Classification of electromagnetic (attracted armature & induction type) relays, Directional
relay, Distance relay, Differential relay, Basic aspects of static and digital relays. Relay protection scheme
for transformers, feeder, generators and AC motors.
Circuit breakers: circuit breaking transients, transient recovery voltage, current chopping and resistance
switching, circuit breaker rating, Arc and Arc extinction. Circuit breaker types, oil circuit breaker, Vacuum
circuit breaker, Air blast circuit breaker, SF6 circuit breaker and operating mechanism, Advantages and
disadvantages of different types.
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Text Book: |
1. Power system Engineering, D.P. Kothari & I.J. Nagrath, MC Graw Hill
2. Electrical Power system, Subir Ray, Prentice Hall
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References: |
1. Power system analysis, operation and control, A. Chakrabarty & S. Haldar, 2nd Edition .PHI
2. Power Systems Analysis, A.R. Bergen & V. Vittal, 2nd Edition, Pearson Education.
3. Power systems Stability, Vol-I, II, III, E.W.Kimbark, Wiley India.
4. Computer Modelling of Electrical Power systems, J. Arrillaga & N.R. Watson, Second edition,
John Wiely & Sons, Ltd
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