# NIT Delhi EEE Syllabus Part III

## POWER SYSTEM PROTECTION

protective relays- introduction, need for power system protection, effects of faults, evolution of protective relays, zones of protection, primary and backup protection, essential qualities of protection, classification of protective relays and schemes, current transformers, potential transformers, basic relay terminology- operating principles and relay construction- electromagnetic relays, thermal relays, static relays, microprocessor based protective relays- overcurrent protection- time-current characteristics, current setting, over current protective schemes, directional relay, directional earth fault relay- distance protection- impedance relay, reactance relay, mho relay, input quantities for various types of distance relays, effect of arc resistance, power swings, line length and source impedance on the performance of distance relays, selection of distance relays- switched distance schemes, auto re-closing- pilot relaying schemes- wire pilot protection, carrier current protection- ac machines and bus zone protection- static relays- amplitude and phase comparators, static over current, directional, differential and distance relays, multi input comparators, concept of quadrilateral and elliptical relay characteristics, microprocessor based relays- advantages, over current relays, directional relays, distance relays- circuit breakers- introduction, arcing in circuit breakers, arc interruption theories, re-striking and recovery voltage, types , ratings and selection of circuit breakers- testing-fuses-introduction, fuse characteristics, types of fuses, application of hrc fuses, discrimination.

TEXT BOOKS:

1. Badriram and D.N. Vishwakarma-Power System Protection and Switchgear, TMH

2. J.Lewis Blackburn “Protective Relaying Principles and applications” Marcel and Dekker Publishers.

EE354 ELECTRICAL MACHINES — III (3-1-0)4

Single phase induction motors- principle of operation, double revolving field theory, speed-torque characteristics, equivalent circuit, phasor diagrams, starting methods, speed control methods, applications- single phase synchronous motors- construction, principle of operation and applications of reluctance motors, hysteresis motors, sub-synchronous motors- a c series motors- construction, principle of operation, phasor diagrams and characteristics of single phase and three phase ac series motors, simple and compensated motors, universal motors and their applications, problems on all the above motors. schrage motor- construction, principle of operation, speed and power factor control, applications- special purpose machines- construction and principle of operation of stepper motors, permanent magnet dc motors, brushless dc motors, linear induction motors and their applications, problems- multi winding transformers- construction, equivalent circuits, determination of equivalent circuit parameters, voltage regulation, efficiency calculations- energy efficient machines (qualitative treatment only): construction, basic concepts, losses minimization and efficiency calculations of energy efficient ac machines- super conducting machines (qualitative treatment only): construction, principle of operation and basic concepts

TEXT BOOKS :

1. E. Fitzgerald, Charles Kingsley and Stepen D. Umans : Electric Machinery , TMGH.6th Edition, 2002.

2. P.S. Bimbhra : Generalized Theory of Electrical Machines, Khanna Pub. 1997.

EE355 CONTROL SYSTEMS LAB (0-0-3)2

Speed-torque characteristics of AC servo-motor, Study of effects of feedback, Time-response of first and second order systems, Frequency-response of second order system, Study of PID controller, Design of lag and lead compensator, Study of synchro, Determination of transfer function of a DC motor, Design of PID controller, Study of feed-forward control, Design of two loop systems

EE356 ELECTRICAL MACHINES LAB – II (0-0-3)2

Determination of Equivalent circuit parameters of three phase induction motor, Brake test on 3-phase induction motor, Circle diagram of 3-phase induction motor, Speed control of 3-phase induction motor , Single phase operation of 3-phase induction motor, Separation of losses of 3-phase induction motor, Regulation of 3-phase alternator by synchronous impedance method, Regulation of 3-phase salient pole alternator by slip test, Regulation of 3-phase alternator by Z.P.F. method, Parallel operation of alternators, Determination of V and inverted V curves of 3-phase synchronous machine, Characteristics of 3-phase Schrage motor No load and load Characteristics of an amplidyne, Determination of equivalent circuit parameters of single phase induction motor

EE401 SOLID STATE DRIVES (3-1-0)4

Introduction- electrical drives, parts of electrical drives, advantages of electric drives, losses, measures of energy conservation in electrical drives. dynamics of electrical drives- fundamental torque equation, components of load torque, load characteristics, modified torque equation, speed-torque convention & multi-quadrant operation, calculation of time and energy loss in transient operation- equivalent values of drive parameters, steady state stability, load equalization. d.c. motor drives- starting, braking, speed control –dual converter fed d.c motor, choper controlled d.c. drives. a.c. motor drives- starting methods, speed control –static scherbius, static kramer drives. vsi and csi fed induction motor drives. types of braking methods closed loop controlled drives- current limit control, current guided control, closed loop speed control, pi controllers, pll controlled drives.

TEXT BOOKS

1. G.K. Dubey: Fundamentals of Electric Drives – Narosa Publishers,1998.

2. Vedam Subramanyam: Electric Drives concepts & Applications – (TMH),1999.

EE402 HVDC & FACTS (3-1-0)4

HVDC transmission- introduction- comparison of ac and HVDC- HVDC transmission analysis of HVDC converters – pulse number- analysis with and without overlap- converter bridge characteristics- converter and HVDC system control- principles of dc link control- starting and stopping of dc link, power control- harmonics & filters – introduction- generation of harmonics- types of ac filters. power flow analysis in ac/dc systems – general modeling of dc links, solutions of ac- dc power flow- flexible ac transmission systems(FACTS)- concept of FACTS – flow of power in an ac system- dynamic stability consideration- basic types of FACTS controllers- static shunt compensators – svc & statcom – objectives of shunt compensation- methods of controllable var generation- switching converter type var generators-basic operating principle and control approaches- static series compensators – gcsc,tssc,tcsc & sssc – objectives of series compensator, variable impedance type series compensators:- basic operating control schemes- power angle characteristics- control range and va rating- external control- combined compensators

TEXT BOOKS

1. K.R. Padiyar: HVDC Power Transmission System, New Age Intl. Co, 2002.

2. N.G. Hingorani and L.Gyugyi: Understanding FACTS, Standard Publishers, Distributors, New Delhi,1995.

EE403 MICROPROCESSORS LAB (3-1-0)4

Simple Assembly language programs and coding of instructions- Programming exercises involving looping counters, time delays, subroutines strings operation- Interfacing of 8255 and applications- Simple programs- Generation of square waveform, Interfacing of binary switches and LED display- Matrix key board interfacing and display of scrolling character, Interfacing of 8254- Simple exercises- Checking of 8254 in different modes of operation, Interfacing of 8251 and serial data transfer- Interfacing of ADC – Interfacing of DAC – To obtain square wave /saw tooth wave at output of DAC- Programming exercises on 8051 micro controller- Programming exercises on 8097 micro controller- Interfacing of seven segment display- Display of a message through HEX key board

EE404 ELECTRICAL SIMULATION LAB (3-1-0)4

C/C++ Programming Exercises- Solution of load-flow equations using Gauss-Seidel and Newton Raphson method- Simulation and operations on sparse matrices- Solution of Differential equations : Swing curve of a synchronous machine- Problems on matrix algebra – Factorisation Methods, Eigen value Analysis. MATLAB AND SIMULINK Simulation and analysis of first and second order circuits – transient response and frequency response- Design and tuning of P, PI and PID controllers for the stability of second order system- Design of control parameters to improve stability of a feedback control system – Bode plots and Root locus- Speed control of separately excited DC Motor drive system using symmetrical optimization method- Solution of Laplace equations for Electrostatic field calculation.PSpice Exercises Study of Diode rectifiers, Fully controlled thyristor rectifiers, Choppers and Switched mode power supplies, Single phase and Three phase PWM Inverters Power system exercises Symmetrical component analysis- Calculation of voltage regulation and efficiency of shorts, medium and long Artificial lines- Simulation of travelling wave phenomenon in long transmission lines using EMTP- Simulation of long transmission line and determination of reactive power requirement and control- Exercises on PSIM, EDSA and EMTP packages, NISA, Proteus, VSM, SPARD Softwares.

EE451 POWER SYSTEMS LABORATORY (0-0-3)2

Voltage regulation and efficiency of long transmission line- Reactive power control of long transmission line- A, B, C, D constants of long transmission line- Operating characteristics of Static differential Relay- Operating characteristics of IDMT over current relay- Symmetrical component analyzer- Fault studies on DC Network Analyzer- Sequence reactances of power system elements and fault studies- Reactive power control using Tap changing transformer- Simulation of long line and reactive power control in EMTP- Measurement of High AC Voltages using Sphere gap- Tracking and Treeing test on surface of solid insulation- Determination of breakdown strength of oil- Generation of different impulse waveforms- Determination of breakdown characteristics of air gap- Simulation of AGC (Single & two – area) using MATLAB (simulink) & design of PID controllers for AGC- Simulation of Power System stabilizers for SMIB & MMPS Systems- Design of Fuzzy Logic controllers for Power System stability enhancement.

EE452 POWER ELECTRONICS & DRIVES LABORATORY (0-0-3)2

Study of characteristics of power semiconductor switching devices (SCR,Triac, MOSFET, IGBT)- Study of two-pulse fully controlled rectifier feeding R, RL and RLC (DC-motor) loads- Study of a six-pulse half controlled rectifier feeding R, RL and RLE loads- Study of a six-pulse fully controlled rectifier feeding R and RL loads- Closed-loop control of a six-pulse fully controlled rectifier- Study of a 1-phase inverter with square wave, quasi-square wave and SPWM control- Speed control of induction motor with V/f control method using 3-phase inverter- Open –loop control of a separately excited DC motor drive with a 6-phase fully controlled rectifier- Study of characteristics of a class –D commutated thyristorized step-down chopper- Study of AC chopper with R and RL loads to achieve power control- Study of performance of a PWM controlled AC-DC converter- Study of performance of a 1-phase cyclo-converter.

MH251 MATHEMATICS – IV (3-0-0)3

Statistics and Probability: Probability laws – Addition and Multiplication theorems on probability – Baye’s theorem –Expectation, Moments and Moment generating function of Discrete and continuous distributions, Binomial, Poisson and Normal distributions, fitting these distributions to the given data, Testing of Hypothesis – Z-test for single mean and difference of means, single proportion and difference of proportions – t-test for single mean and difference of means, F-test for comparison of variances,. Chi-square test for goodness of fit. – Correlation, regression.Numerical Analysis: Curve fitting by the method of least squares. Fitting of (i) Straight line (ii) Second degree parabola (iii) Exponential curves.Lagrange interpolation, Forward, backward and central differences, Newton’s forward and backward interpolation formulae, Gauss’s forward and backward interpolation formulae, Numerical differentiation at the tabulated points with forward backward and central differences. Numerical Integration with Trapezoidal rule, Simpson’s 1/3 rule, Simpson’s 3/8 rule and Romberg integration. Taylor series method, Euler’s method, modified Euler’s method, Runge-Kutta method of 2nd & 4th orders for solving first order ordinary differential equations, Numerical solution of algebraic and transcendental equations by Regula-Falsi method Newton-Raphson’s method. Series Solution Classification of singularities of an ordinary differential equation – Series solution- Method of Frobenius – indicial equation – examples Bessel and Legendre functions: Bessel function of first kind Recurrence formulae Generating function Orthogonality of Bessel functions Legendre polynomial rodrigue’s formula Generating function Recurrence formula Orthogonality of Legendre polynomials.

TEXT BOOKS:

1. S.C.Gupta and V.K.Kapoor : Fundamentals of Mathematical Statistics.

1. M.K. Jain S.R.K. Iyengar and R.K.Jain: Numerical methods for Scientific and Engineering Computation

2. Erwyn Kreyszig : Advanced Engineering Mathematics,

PH265 ELECTRICAL ENGINEERING MATERIALS (3-0-0)3

Magnetic materials : Dia, Para, Ferro, Anti f erro and Ferri magnetic materials .Soft and hard Magnetic Materials., tapes and Films. Semiconductors: Silicon Wafer Preparation, Different fabrication techniques involved in electronic chip in VLSI technology. Conductivity of Materials Electrical and thermal conductivity of materials, Bimetals High temperature materials, Thermocouples. Dielectric Materials : Field vectors, Polarization, Ferro electricity and Piezo electrics. Insulating Materials : Electrical, mechanical and thermal properties of Liquid, Solid, Fibrous Insulating materials, Glass, Ceramic, Mineral and Plastic materials

Text Books :

1. Materials for Electrical Engineering Tareev B.M , Higher School Pub. House Moscow.,1986.

2. Electronic Properties R. Rose, L.A. Shepard and J. Wulff – Wiley Eastren Pvt.Ltd, New Delhi.1986.

EE311 COMPUTER ORGANISATION (3-0-0)3

Introduction- organization and architecture – role of performance- system buses – bus interconnection – elements of bus design –pci bus systems- internal memory – key characteristics– hierarchical structure– memory organization schemes – cache memory – virtual memory –operating system support- demand paged memory management- arithmetic unit – data and operand types and representations –unsigned and signed binary addition, subtraction and multiplication – booth’s algorithm. binary division – ieee 754 floating point representation- processing unit – data path- machine instruction characteristics – instruction sets – instruction formats – addressing modes- control unit- single bus organization of a processor and micro-operations – control of the cpu – hardwired control unit – microprogrammed control- input/output – external devices, hierarchies of i/o – structure and function of i/o processors, a typical desktop i/o system, introduction to embedded systems.

TEXT BOOK

1. William Stallings – Computer Organization and Architecture – Designing for performance, PHI, 5th Edition.

EE312 UTILISATION OF ELECTRICAL ENERGY (3-0-0)3

Electrical heating and welding- resistance, inductance and dielectric heating- resistance and arc welding- electrolysis process- principle of electrolysis, electroplating, metal extraction and metal processing, electromagnetic stirs- illumination- terminology, laws, coefficient of utilisation and depreciation, polar curves, photometry, integrating sphere, sources of light, discharge lamps- basic principles of light control, types and design of lighting schemes- lighting calculations- electric traction – systems of electric traction and track electrification- mechanics of traction movement, speed – time curves for different service- adhesive weight and braking retardation, coefficient of adhesion- train lighting- systems of train lighting, special requirements – coach wiring, lighting by making use of 25kv ac supply.

TEXT BOOKS

1. H. Partab: Modern Electric Traction, Dhanpat Rai & Co, 1998.

2. E. Openshaw Taylor: Utilisation of Electric Energy, Orient Longman, 1988.