Curricular Structure Third Year B. Tech. VI Sem Electrical & Electronics Engineering 6th Sem EEE Scheme Subject Lecturer Tutorial practical Credit1 Power electronics-1 3 1 -2 Electrical Measurement 3 1 - Instrumentation3 Modern Control Theory 3 1 -4 Protection of Power 3 1 - system5 Signal Processing 3 1 -6 DBMS 3 0 -7 PDP 2 - -8 Power electronics-1 Lab. 0 0 29 Electrical Measurement 0 0 2 Instrumentation Lab.10 Protection of Power 0 0 2 system Lab.11 DBMS Lab. 0 0 2
POWER ELECTRONICS -1POWER SEMI CONDUCTOR DEVICESThyristors-Silicon controlled rectifiers (SCR’s) and its characteristics -series and parallelconnection of SCR’s , BJT , Power MOSFET, Power IGBT and their characteristics. UJT Firingcircuit –Two transistor analogy- Snubber circuit details , TRIAC, DIAC.CYCLO CONVERTERSThe basic principle of operation, single-phase to single-phase cyclo converter, three phase halfwave cyclo converters with R and RL load.CHOPPERSChoppers-control strategies-Step down choppers Derivation of load Voltage and currents WithR,RL, and RLE loads-type A,B,C,D,E choppers, Steady state analysis of type –A chopper, ripplefactor, step up chopper- load voltage expressions.INVERTERSInverters- single and three phase inverter-half wave and full wave bridge typ (120, 180 modesof operation). Type of commutation, CSI, VSI voltage control techniques for inverters pulsewidth modulation techniques – Numerical problems.SINGLE PHASE AND THREE PHASE CONTROLLED CONVERTERSCONVERTERS:- single phase half and full wave converters with RL load, single phase dualconverters, three phase half wave converters, three phase full converters with RL load, threephase dual converters. Single and three phase semi converters with RL load.List of practicals1. Determine v-i characteristics of scr and measure forward breakdown voltage, latching and holding currents.2. Find v-i characteristics of TRIAC AND DIAC3. Find output and transfer characteristics of MOSFET4. Study and test firing circuits for SCR-R,RC and UJT firing circuits.5. Study and test three phase diode bridge rectifier with R and RL loads. Study the effect of filters6. Study and obtain waveform of single-phase half wave controlled rectifier with and without filters. Study the variation of output voltage with respect to firing angle.7. Draw a cosine wave using pulse width modulation technique.8. Study the analysis of passive filters.9. Study the comparison of following power electronics devices regarding ratings, perform characteristics and applications: power diode, power transistor, thyristor, diac , triac, mosfet.10. Design the cycloconverter using matlab
ELECTRICAL MEASUREMENTS& INSTRUMENTSUnit -1 Measuring Instruments: Moving coil, moving iron, electrodynamics and induction instruments-construction, operation, torque equation and errors, Applications of instruments formeasurement of current, voltage, single-phase power and single-phase energy, Errors inwattmeter and energy meter and their compensation and adjustment, Testing and calibration ofsingle-phase energy meter by phantom loading.Unit-2Polyphase Metering: Blondels Theorem for n-phase, p-wire system. Measurement of power andreactive kVA in 3-phase balanced and unbalanced systems: One-wattmeter, two-wattmeter andthree-wattmeter methods. 3-phase induction type energy meter, Instrument Transformers:Construction and operation of current and potential transformers, Ratio and phase angle errorsand their minimization. Effect of variation of power factor, secondary burden and frequency onerrors, Testing of CTs and PTs. Applications of CTs and PTs for the measurement of current,voltage, power and energy.Unit-3Potentiometers: Construction, operation and standardization of DC potentiometers– slide wireand Crompton potentiometers, Use of potentiometer for measurement of resistance andvoltmeter and ammeter calibrations, Volt ratio boxes, Construction, operation andstandardization of AC potentiometer – in-phase and quadrature potentiometers, Applications ofAC potentiometers.Unit-4Measurement of Resistances: Classification of resistance, Measurement of medium resistances –ammeter and voltmeter method, substitution method, Wheatstone bridge method,Measurement of low resistances – Potentiometer method and Kelvins double bridge method,Measurement of high resistance: Prices Guard-wire method, Measurement of earth resistance,Measurement of insulation resistance by using meggar .Unit-5 AC Bridges: Generalized treatment of four-arm AC bridges, Sources and detectors. Maxwellsbridge, Hays bridge and Anderson bridge for self-inductance measurement, Heavisides bridgefor mutual inductance measurement, De Sauty Bridge for capacitance measurement, Wiensbridge for capacitance and frequency measurements, Sources of error in bridge measurementsand precautions, Screening of bridge components, Wagner earth device.
ELECTRICAL MEASUREMENT & INSTRUMENTS LAB1 Study working and applications of Meggar, Tong-tester, P.F. Meter and Phase Shifter.2 Measure power and power factor in 3-phase load by (i) Two-wattmeter method an Wattmetermethod.3 Calibrate an ammeter using DC slide wire potentiometer.4 Calibrate a voltmeter using Crompton potentiometer.5 Measure low resistance by Crompton potentiometer.6 Measure Low resistances by Kelvins double bridge.7 Measure earth resistance using fall of potential method.8 Calibrate a single-phase energy meter by phantom loading at different power factors.9 Measure self-inductance using Andersons bridge.10 Measure capacitance using De Sauty Bridge.11 Measure frequency using Weins bridge.12 Measure the insulation of resistance by using meggar .
MODERN CONTROL THEORY L T P -310 Introduction Sampling and holding – Sample and hold device D/A, A/D conversion – Z transform –Inverse Z transform – properties – Pulse transfer function and response between samplingintervals – Reconstruction.Variable Technique State equations of discrete data systems – State transition equations –Properties ofstate Transition matrix - Characteristic equations – Eigen value – eigen vector – Diagonalizationof Matrix – Jordan canonical form – Methods of computing state transition matrixControllability, Observability and Stability Controllability and observability of linear time invariant discrete data systems –Relationships between controllability, observability and transfer function-Stability of lineardiscrete control system – Stability tests – Bilinear transformation method – Routh StabilityCriterion.Design of Digital Control Systems Root locus plot with mat lab, Bode plot with mat lab, Nyquist plot with mat lab,Proportional Controller, Proportional Integral Controller, Proportional Integral DerivativeController, PI controller design with Matlab, PD controller design with Matlab, PID controllerdesign with Matlab.Digital Signal Processor Based Control Selection of processors – Mechanization of control algorithms – Architecture ofDSPTMS320LF2407, Applications of control of electric drives.PROTECTION OF POWER SYSTEMUnit-1 (i) Causes and consequences of dangerous currents: Faults, overloads and switchingover currents. Introduction to protection, trip circuit of a circuit breaker. Functionalcharacteristics of a relay, zone of protection, primary and backup protection.(ii) CTs & PTs: Current transformer construction, measurement and protective CTs. Type ofpotential transformers. Steady state ratio and phase angle errors in CTs and PTs. Transienterrors in CT and CVT (Capacitive Voltage Transformer).Unit-2 Over current Protection: HRC fuse and thermal relay. Over current (OC) relays -instantaneous, definite time, inverse time and inverse definite minimum time over currentrelays, time and current grading. Induction disc type relay. Directional over current relay, Earthfault relay. Brief description of over current protective schemes for a feeder, parallel feedersand ring mains.Unit-3 Generator Protection: Stator protection - differential and percentage differentialprotection, protection against stator inter-turn faults, stator overheating protection. Rotorprotection .protection against excitation and prime mover failure, field earth fault andunbalanced stator currents (negative sequence current protection).
Unit-4 (i) Transformer Protection: Percentage differential protection, magnetizing inrushcurrent, percentage differential relay with harmonic restraint. Buchholz relay. Differentialprotection of generator transfer unit.(ii) Busbar Protection: Differential protection of busbars, high impedance relay scheme,frame leakage protection.Unit-5 (i) Transmission Line Protection: Introduction to distance protection. Construction,operating principle and characteristics of an electromagnetic impedance relay. Effect of arcresistance. Induction cup type reactance and mho relays. Comparison between impedance,reactance and mho relays. Three stepped distance protection of transmission line.(ii) Induction Motor Protection: Introduction to various faults and abnormal operatingconditions, unbalance supply voltage and single phasing. Introduction to protection of inductionmotors- HRC fuse and over current, percentage differential, earth fault and negative sequencevoltage relays.POWER SYSTEM PROTECTION LAB1 Study the burden effect on the performance of CT and measure ratio error.2 Find out the sequence components of currents in three 1-Phase transformers and 3-Phasetransformer and compare their results.3 (i) Study over current relay.(ii) Draw the current-time characteristic of an over current relay for TMS=1 & 0.5 andPSM=1.25 & 1.0.4 Study percentage bias differential relay.5 Study of gas actuated Buchholz relay.6 Study under frequency relay and check it’s setting experimentally.7 Design a HV transmission line.8 Study a typical grid substation.9 Study earthing of power station, substation and building
SIGNAL PROCESSINGUNIT-1Introduction, continuous-time signals, discrete -time signals, periodic and non periodic signals,calculation of time period of periodic signals, even and odd signals, conjugate symmetry andanti-conjugate symmetry, energy and power signals, siganum function , unit impulse and unitstep function, ramp signal.UNIT-2Linear time-invariant systems, basic system properties- systems with memory and withoutmemory, causal, anti-causal and non- causal, dynamical and non-dynamical systems, linear andnon-linear systems, time variant and time invariant systems, stable and unstable systems, orderand type of systems, bounded input bounded output condition.UNIT-3Fourier series representation of periodic signals, convergence of Fourier series, shifting ofsignals, properties of continuous-time Fourier series:- linearity, time shifting, time reversal,time scaling, conjugation and conjugate symmetry, Parseval’s relation for continuous-timeFourier series , continuous time Fourier transform, properties of continuous-time Fouriertransform:- time and frequency scaling, differentiation and integration, duality, time shifting,linearity.UNIT-4Laplace transform, the region of convergence for Laplace transform, inverse Laplace transform,linearity of Laplace transform, time shifting, shifting in the s-domain, time scaling, conjugation,convolution property, differentiation in time domain, differentiation in s-domain, integration intime domain, initial and final value theorems, unilateral Laplace transformUNIT-5Z- transform, the region of convergence for z- transform, inverse z- transform, linearity of z-transform, time shifting, shifting in the z-domain, time scaling, conjugation, initial and finalvalue theorems, solving difference equation using unilateral z- transform.REFERENCE BOOKS: 1. Signals and systems by ALAN V. OPPENHEIM, ALAN S. WILLSKY, WITH S.HAMID NAWAB, PHI publication. 2. Signals and systems by HWEI P. HSU and RAKESH RANJAN , TMH publication
DATA BASE MANAGEMENT SYSTEMS Credits: 4 (3L-0-2P)UNIT I :Data base System Applications, data base System VS file System – View of Data – DataAbstraction –Instances and Schemas – data Models – the ER Model – Relational Model – OtherModels – Database Languages – DDL – DML – database Access for applications Programs – database Users and Administrator, Conceptual Design for Large enterprises.UNIT II :Introduction to the Relational Model – Integrity Constraint Over relations – Enforcing Integrityconstraints – Querying relational data – Logical data base Design – Introduction to Views –Destroying /altering Tables and Views.Relational Algebra – Selection and projection set operations – renaming – Joins – Division –Examples of Algebra overviews.UNIT III :Form of Basic SQL Query – Examples of Basic SQL Queries – Introduction to Nested Queries –Correlated Nested Queries Set – Comparison Operators – Aggregative Operators – NULL values– Comparison using Null values – Logical connectivity’s – AND, OR and NOT – Impact on SQLConstructs – Outer Joins – Disallowing NULL values –SQL Triggers and Active Data bases.UNIT IV :Normalization, Transaction Concept- Transaction State- Implementation of Atomicity andDurability – Concurrent – Executions – Serializability- Recoverability – Implementation ofIsolation – Testing for serializability- Lock –Based Protocols – Timestamp Based Protocols-Validation- Based Protocols.UNIT V :Recovery and Atomicity – Log – Based Recovery – Recovery with Concurrent Transactions –Failure with loss of nonvolatile storage- Remote Backup systems. File Organization and Indexing– Cluster Indexes, Primary and Secondary Indexes – Index data Structures – Hash BasedIndexing–Tree base Indexing.TEXT BOOKS1. Data base Management Systems, Raghurama Krishnan, Johannes Gehrke, TATA McGrawHill3rd Edition2. Data base System Concepts, Silberschatz, Korth, McGraw hill, V edition.REFERENCES :1. Data base Systems design, Implementation, and Management, Peter Rob & Carlos Coronel 7thEdition.2. Fundamentals of Database Systems, Elmasri Navrate Pearson Education3. Introduction to Database Systems, C.J.Date Pearson Education