Cartesian, cylindrical & spherical co-ordinate systems, scalar & vector fields, gradient, divergence & curl of a vector field, Divergence theorem & Stokes’s theorem, concept of vectors. Electrostatic Fields – Coulomb’s law, electric field intensity due to different charge distribution viz. line charge, sheet charge, Field due to continuous volume – electric potential, properties of potential function, potential gradient equipotential surfaces, line of force, Gauss law, applications of Gauss law, Gauss law in point form, method of images.
Laplace’s & Poisson’s equations, solution of Laplace’s equation, Electric dipole, dipole moment, potential & electric field intensity due to dipole, Behavior of conductors in an electric field. Conductor & insulator, electric field inside a dielectric, polarization, Boundary value conditions for electric Field, Capacitance & Capacitances of various types of capacitors, Energy stored and energy density in static electric field, Current density, conduction & convection current density ohms law in point form, equation of continuity.
Static Magnetic Field, Biot-Savart’s law, Magnetic Field intensity due to straight current carrying filament, circular, square and solenoidal current carrying wire, Relationship between magnetic flux, flux density & magnetic Field intensity; Ampere’s circuital law and its applications, magnetic Field intensity due to infinite sheet and various other configurations, Ampere’s circuital law in point form, Magnetic force, moving charge in a magnetic field, Lorentz Force on straight and long current carrying conductors in magnetic field, force between two long & parallel current carrying conductors. Magnetic dipole & dipole moment, a differential current loop as dipole, torque on a current carrying loop in magnetic field, Magnetic Boundary conditions.
Scalar magnetic potential and its limitations, Vector magnetic potential and its properties, vector magnetic potential due to different simple configurations; Self and Mutual inductances, determination of self & mutual inductances, self inductance of solenoid, toroid coils, mutual inductance between a straight long wire & a square loop. Energy stored in magnetic Field & energy density, Faraday’s Law, transformer & motional EMFs, Displacement current, Maxwell’s equations as Generalization of circuit equations, Maxwell’s equation in free space, Maxwell’s equation for harmonically varying Field, static and steady fields, Maxwell’s equations in differential & integral form.
Electro Magnetic Waves : Uniform plane wave in time domain in free space, Sinusoidally time varying uniform plane wave in free space, Wave equation and solution for material medium,
Uniform
plane wave in dielectrics and conductors, Pointing Vector theorem, instantaneous, average and complex poynting vector, power loss in a plane conductor, energy storage, Polarization of waves, Reflection by conductors and dielectric – Normal & Oblique incidence, Reflection at surface of a conducting medium, surface impedance, transmission line analogy.
Mathew N.O Sadiku; Elements of Electromagnetic; Oxford.
P.V. Gupta; Electromagnetic Fields; Dhanpat Rai.
N.N. Rao; Element of Engineering Electromagnetic; PHI.
William H. Hayt; Engineering Electromagnetic; TMH.
John D. Kraus; Electromagnetic; TMH.
Jordan Balmian; Electromagnetic wave & Radiating System; PHI.
David K. Cheng; Fields and Wave Electromagnetic; Addison Wesley.
S.P. Seth; Electromagnetic Field ;Dhanpat Rai & Sons
Note: Field plotting of electromagnetic systems on a PC using standard softwares. Application for low and high frequency devices. Suggested softwares, GEMINI(Infolytica), ANSYS, ANSOFT, NISA.
D.C. Machine-I
Basic construction of DC machines; types of DC machines and method of excitation; lap and wave windings; Emf equation; armature reaction and methods of limiting armature reaction; Commutation process and methods for improving commutation; Basic performance of DC generators and their performance characteristics; Metadyne and Amplidyne; permanent magnet DC motors; Brush less dc motors,
D.C. Machine-II
Basic operation of DC motors; Torque equation; Operating characteristics of DC motors, Starting of DC motors- 2point, 3 point and 4 point starters; speed control of DC motors; losses and efficiency of DC machines; testing of DC machines, direct testing, Swinburne’s test and Hopkinson’s test. Application of DC machines
Synchronous Machine-I
Construction; types of prime movers; excitation system including brushless excitation; poly- phase distributive winding, integral slot and fractional slot windings; emf equation, generation of harmonics and their elimination; armature reaction; synchronous reactance and impedance, equivalent circuit of alternator, relation between generated voltage and terminal voltage, voltage regulation of alternators using synchronous impedance, mmf, zpf and new A.S.A method.
Synchronous Machine-II
Salient pole machines; two reaction theory equivalent circuit model and phasor diagram; determination of Xd and Xq by slip test; SCR and its significance; regulation of salient pole alternator, power angle equation and characteristics; synchronizing of alternator with infinite busbar,; parallel operation and load sharing; synchronizing current, synchronizing power and synchronising torque coefficient; synchroscopes and phase sequence indicator; effect of varying excitation and mechanical torque,.
Synchronous machine-III
Synchronous motor operation, starting and stopping of synchronous motor, pull in torque, motor under load power and torque, reluctance torque, effect of excitation, effect of armature reaction, power factor adjustment, V curves, inverted V curves, synchronous motors as power factor correcting device, super synchronous and sub synchronous motors, hunting and damper winding efficiency and losses.
Analysis of short circuit oscillogram, determination of various transient, sub transient and steady reactances and time constants, expression of transient and sub transient reactances in terms of self and mutual inductances of various winding, short circuit current, equivalent circuit. Single phase synchronous motors- hysteresis motor, reluctance motor.
Repulsion motor, stepper motor, switched reluctance
Experiments can cover any of the above topics, following is a suggestive list:
To plot magnetisation characteristic of a separately excited DC generator
To perform load test on DC generators.
To perform load test on DC series and shunt motor
To perform Swinburn’s test on a DC machine and find out its efficiency under full load condition.
To conduct Hopkinson’s test on a pair of DC shunt machine.
To perform OCC and SCC test on an alternator and determine its regulation.
To determine regulation of alternator using mmf and zpf methods.
To synchronise alternator with infinite bus bar.
To plot V and inverted V curves for a synchronous motor
To find Xd and Xq of salient pole synchronous machine by slip test.
To Determine negative sequence and zero sequence reactance of an alternator.
To determine subtransient direct axis and quadrature axis synchronous reactances of salient pole machine.
M.G. Say,Performance & design of AC machines, CBS publishers & distributors, Delhi, 3rd edition
A.E. Clayton & N.N. Nancock, The Performance & design of DC machines CBS publications & distributors, Delhi, 3rd edition
P.S. Bhimbra, Electrical Machinery, Khanna Pub.
P.S. Bhimbra, Generalized theory of Electrical Machines, Khanna publishers, Delhi,
Ashfaq Husain, Electric Machines, Dhanpat Rai, New Delhi
I.J. Nagrath & D.P. Kothari, Electric Machines, Tata McGraw Hill , New Delhi,
Syed A. Nasar,Electric Machines & Power Systems, Volume I , Tata McGraw Hill, NewDelhi
A. E. Fitzerald, C. Kingsley & S.D. Umans , Electric Machinery Tata McGraw Hill ,New Delhi ,5th edition
Credit Based Grading System
Fault Analysis per unit, representation and its advantages, faults in power systems (Symmetrical & Unsymmetrical), Single line and equivalent impendence diagram representation of power system components. Symmetrical components and its application to power systems, fault analysis, Sequence networks and their interconnection for different types of faults, Effect of fault impedance, Current limiting reactors, its location and application, Short circuit calculation.
Requirement of relays, Primary & backup protection, Desirable qualities of relays, Concept of Pickup, reset & drop-off, Drop off/ Pickup ratio, inverse time & definite time charters tics, Attracted armature, Balanced Beam, Induction disc, Induction cup, Moving coil & moving Iron, Rectifier , Thermal, Bimetal directional relay, Frequency, DC, all or nothing relays. Pilot & negative sequence, Over current, Over Voltage, Directional, Differential and Distance relays, R-X diagram, Impedance mho & reactance relay.Introduction of static analog & digital relays, Classification of static relays.
Elementary principle of arc quenching, recovery & re-striking voltage, arc quenching devices, description and operation of Bulk oil, Minimum oil, Air break, Air blast, SF6, Vacuum circuit breakers and DC circuit breakers, their comparative merits, LT Switch gear, HRC fuses, current limiting reactor.& their design features, influence of reactors in CB ratings Testing of circuit breaker, Description of a simple testing station, direct & indirect testing.
Protection of Generators - Earth Fault, percentage, differential, Loss of excitation, Prime mover failure, Over current, Turn to turn fault, Negative phase sequence, heating, Reverse power protection schemes
Internal & external fault protection, Differential, Earth fault, Over Current, Over heating, Protection schemes, Protection of transmission lines, Over current, Distance and carrier current protection schemes.
Switching surges, Phenomena of Lightning, over voltage due to lightning, Protection against lightning, Lightning arrestors, selection of lightning arrestors, Surge absorbers and diverters, Rod gap, Horn gap expulsion type & valve type lightning arrestors, solid resistance and reactance earthing, Arc suppression coil, Earthing transformers, Earthwires, Earthing of appliances, insulation co-ordination, Definitions determination of line insulation, insulation level of substation equipment, co-ordination amongst items of substation equipment.
Determination of drop out factor of an instantaneous over current relay.
Determination of operating characteristic of IDMT relay.
Determination of operating characteristic of differential relay.
Study and operation of gas actuated protective relay.
Study and operation of static over current relay.
Determination of transmission line parameters using MATLAB.
Analysis of power system faults (Symmetrical & Asymmetrical) using MATLAB.
Study of SF6 circuit breaker
Protectional simulation study of generator, Transformer, Feeder & Motor protection.
B. Ravindran and M Chander, "Power System protection and Switchgear", New Age International.
Fundamentals of Power System protection Y.G.Paithankar & S.R. Bhide; E.E.E.
CL Wadhwa, Electrical Power systems, New age International.
Haddi Saadet, "Power System Analysis, TMH
A.R. Bergen, Vijay Vittal, "Power System Analysis, Pearson Education, Asia.
Switchgear & protection Sunil S. Rao. Khanna Publication.
Ravindra P. Singh, Switchgear & Power System Protection, PHI Learning.
Badrirka, Power System protection and switchgear, TMH.
Credit Based Grading System
Advantages and application of power electronic devices characteristics, Symbol & application of power diodes, power transistors, GTO, Triac, Diac, Power MOSFET, IGBT, LASCR, Fast recovery diode, schottey diode MCTs. Principle of operation of SCR, Two transistor analogy, brief idea of construction of SCR, Static characteristics of SCR, Condition of turn on & off of SCR Gate characteristics, Method for turning on of SCR, Turnoff methods, different commutation echniques (Class A,B,C,D,E, & F Commutation) firing of SCR, Use of pubic transformer and opto isolator in firing, Resistance firing Ckt, Resistance capacitance firing circuit, UJT firing cut, and ramp triggering, firing for 3-Φ circuit. SCR rating & protection of SCR over voltage, Over current, Suprior firing, Design of snubber circuit and protection of gate of SCR, heating, cooling & mounting of SCR series and parallel operation of SCR, String efficiency & problem associated
with series and parallel operation of SCR
Operation and analysis of single phase (Half wave & Full Wave) and multiphase (Three Phase) uncontrolled and controlled rectifier circuit with resistive, resistive & inductive load (continuous & non continuous conduction, Fw small & very large inductive loads) and RLE loads. Estimation of average load voltage and load current for above rectifier cirucits active and reactive power input. Effect of free wheeling diode and source inductance on performance of these rectifier circuits .
Comparison of mid point & Bridge rectifier circuits.
Series and parallel inverter, Voltage source & current source inverter, Single phase and three phase bridge inverter, Self cumulated inverters,, Mc- murray & MC murray bed ford inverters, Voltage control of single phase and three phase bridge inverter, Harmonics & their reduction techniques.
Principle of chopper operation, Various control strategies in chopper, Step up & step-up/step down choppers, chopper configuration (Type A,B, C,D, & E), Steady state analysis of chopper circuits, Current & voltage commutation of chopper circuits Jones & Morgens chopper
Single phase (mid point & bridge configuration) and three phase cyclo convertor
configuration and operating principles. AC voltage controllers (using SCRs & Traics) single phase full wave controller with R and RL load, Estimation of RMS load voltage, RMS load current and input power factor, three phase AC voltage controller (Without analysis) Dual converter Switched mode voltage regulator buck, Boost, Buch & Boost, Ck regulators.
LIST OF EXPERIMENTS
1- VI CHARACTERISTICS OF SCR
2- VI CHARACTERISTICS OF DIAC
3- VI CHARACTERISTICS OF BJT
4- CHARACTERISTICS OF TRIAC
5- VI CHARACTERISTICS OF MOSFET
6- TRANSFER CHARACTERISTICS OF MOSFET
7- OUTPUT CHARACTERISTICS OF IGBT
8- TRANSFER CHARACTERISTICS OF IGBT
9 - SINGLE PHASE SCR HALF CONTROLLED CONVERTER WITH R LOAD
10- 1Φ SCR FULLY CONTROLLED CONVERTER WITH R-LOAD
11 - STUDY OF 3Φ SCR HALF CONTROLLED CONVERTER
12- STUDY OF 3Φ SCR FULLY CONTROLLED CONVERTER
13- STUDY OF CLASSES OF COMMUTATION A,B,C,D,E,F.
M.H. Rashid, Power Electronics Circuits, Devices and Applications, Pearson
Education, Singapore, 1993.
M Ramsmoorthy, An Introduction to transistor and their application, Affiliated East-West Press.
P.C. Sen, Power Electonics, TMH.
M.D. Singh, K.B. Khanchandani, Power Electronics, TMH, Delhi, 2001.
Chakravarti A., Fundamental of Power Electronics and Drives, Dhanpat Ray & Co.,
Dr. P.S. Bhimbhra, Power Electonics, Khanna Pub.
Vedam Subramanyam, Power Electronics New Age International Revised II ed. 2006.
Randall Shaffer, Fundaments of Power Electronics With MATLAB Cengage Leaening 2008.
Credit Based Grading System
General energy problem: Energy use patterns and scope for conservation.
Energy audit: Energy monitoring, Energy accounting and analysis, Auditing and targeting. Energy conservation policy, Energy management & audit, Energy audit, Types of energy audit, energy management (audit), qualities and function of energy managers, language of an energy manager, Questionnaire, Check list for top management, Loss of energy in material flow, energy performance, Maximizing system efficiency, Optimizing, input energy requirements, Energy auditing instruments, Material load energy balance diagram.
Thermodynamics of Energy Conservation. Basic principle. Irreversibility and second law efficiency analysis of systems. Primary energy sources, optimum use of prime-movers, energy efficient house keeping, energy recovery in thermal systems, waste heat recovery techniques, thermal insulation. Thermal energy audit in heating, ventilation and air conditioning. Maintenance and Energy audit – friction, lubrication and tribo-logical innovations. Predictive and preventive maintenance.
Load curve analysis & load management DSM, Energy storage for power systems (Mechanical, Thermal, Electrical & Magnetic) Restructuring of electric tariff from energy conservation consideration, Economic analysis depreciation method, time value of money, Evaluation method of projects, replacement analysis, special problems inflation risk analysis. Pay back period, Energy economics, Cost Benefit Risk analysis, Pay back period.
Energy efficient electric drives, Energy efficient motors V.S.D. power factor improvement in power system. Energy Conservation in transportation system especially in electric vehicle. Energy flow networks, Simulation & modeling, formulation & Objective & constraints, alternative option, Matrix chart.
Energy conservation task before industry, Energy conservation equipments, Co- Generation, Energy conservation process, Industry Sugar, Textiles, Cement Industry etc Electrical Energy Conservation in building, heating and lighting. domestic gadgets
Energy Management – W.R. Murphy & G. Mckey Butler worths.
Energy Management Head Book- W.C. Turner, John Wiley
Energy Management Principles- Craig B. Smith, Pergamon Press
Energy Conservation- Paul O Callagan- Pergamon Press
Design & Management of energy conservation. Callaghan,
Elect, Energy Utilization & Conservation. Dr. Tripathi S.C.,
Credit Based Grading System
The primary objective of the course is to introduce concepts about the properties, characteristics, applications and limitations of Electrical & Electronics engineering materials.
Student after successful completion of course is expected to possess an understanding of basic of Electrical & Electronics engineering materials.
A.J. Dekker; Electrical Engineering Materials; PHI.
William F Smith, JavadHashemi, Ravi Prakash ‘Material science and engineering’, McGraw Hill.
James F. Shackelford, Madanapalli K. Muralidhara ‘Introduction to Materials Science for Engineers’, Pearson
Ian P. Jones ‘ Materials Science for Electrical and Electronics Engineers’ Oxford university press
C. S. Indulkar and S. Thruvengadem; Electrical Engineering Materials; S. Chand.
TTTI Madras; Electrical Engineering Materials; TMH.
John Allison; Electrical Engineering Material s & Devices; TMH.
Kasap; Electronic Materials and devices; TMH
V. Raghvan; Material Science & Engineering; PHI.
S.P. Seth & P.V. Gupta; Electrical Engineering Materials; Dhanpat Rai.
Cartesian, cylindrical & spherical co-ordinate systems, scalar & vector fields, gradient, divergence & curl of a vector field, Divergence theorem & Stokes’s theorem, concept of vectors. Electrostatic Fields – Coulomb’s law, electric field intensity due to different charge distribution viz. line charge, sheet charge, Field due to continuous volume – electric potential, properties of potential function, potential gradient equipotential surfaces, line of force, Gauss law, applications of Gauss law, Gauss law in point form, method of images.
Laplace’s & Poisson’s equations, solution of Laplace’s equation, Electric dipole, dipole moment, potential & electric field intensity due to dipole, Behavior of conductors in an electric field. Conductor & insulator, electric field inside a dielectric, polarization, Boundary value conditions for electric Field, Capacitance & Capacitances of various types of capacitors, Energy stored and energy density in static electric field, Current density, conduction & convection current density ohms law in point form, equation of continuity.
Static Magnetic Field, Biot-Savart’s law, Magnetic Field intensity due to straight current carrying filament, circular, square and solenoidal current carrying wire, Relationship between magnetic flux, flux density & magnetic Field intensity; Ampere’s circuital law and its applications, magnetic Field intensity due to infinite sheet and various other configurations, Ampere’s circuital law in point form, Magnetic force, moving charge in a magnetic field, Lorentz Force on straight and long current carrying conductors in magnetic field, force between two long & parallel current carrying conductors. Magnetic dipole & dipole moment, a differential current loop as dipole, torque on a current carrying loop in magnetic field, Magnetic Boundary conditions.
Scalar magnetic potential and its limitations, Vector magnetic potential and its properties, vector magnetic potential due to different simple configurations; Self and Mutual inductances, determination of self & mutual inductances, self inductance of solenoid, toroid coils, mutual inductance between a straight long wire & a square loop. Energy stored in magnetic Field & energy density, Faraday’s Law, transformer & motional EMFs, Displacement current, Maxwell’s equations as Generalization of circuit equations, Maxwell’s equation in free space, Maxwell’s equation for harmonically varying Field, static and steady fields, Maxwell’s equations in differential & integral form.
Electro Magnetic Waves : Uniform plane wave in time domain in free space, Sinusoidally time varying uniform plane wave in free space, Wave equation and solution for material medium,
Uniform
plane wave in dielectrics and conductors, Pointing Vector theorem, instantaneous, average and complex poynting vector, power loss in a plane conductor, energy storage, Polarization of waves, Reflection by conductors and dielectric – Normal & Oblique incidence, Reflection at surface of a conducting medium, surface impedance, transmission line analogy.
Mathew N.O Sadiku; Elements of Electromagnetic; Oxford.
P.V. Gupta; Electromagnetic Fields; Dhanpat Rai.
N.N. Rao; Element of Engineering Electromagnetic; PHI.
William H. Hayt; Engineering Electromagnetic; TMH.
John D. Kraus; Electromagnetic; TMH.
Jordan Balmian; Electromagnetic wave & Radiating System; PHI.
David K. Cheng; Fields and Wave Electromagnetic; Addison Wesley.
S.P. Seth; Electromagnetic Field ;Dhanpat Rai & Sons
Note: Field plotting of electromagnetic systems on a PC using standard softwares. Application for low and high frequency devices. Suggested softwares, GEMINI(Infolytica), ANSYS, ANSOFT, NISA.
D.C. Machine-I
Basic construction of DC machines; types of DC machines and method of excitation; lap and wave windings; Emf equation; armature reaction and methods of limiting armature reaction; Commutation process and methods for improving commutation; Basic performance of DC generators and their performance characteristics; Metadyne and Amplidyne; permanent magnet DC motors; Brush less dc motors,
D.C. Machine-II
Basic operation of DC motors; Torque equation; Operating characteristics of DC motors, Starting of DC motors- 2point, 3 point and 4 point starters; speed control of DC motors; losses and efficiency of DC machines; testing of DC machines, direct testing, Swinburne’s test and Hopkinson’s test. Application of DC machines
Synchronous Machine-I
Construction; types of prime movers; excitation system including brushless excitation; poly- phase distributive winding, integral slot and fractional slot windings; emf equation, generation of harmonics and their elimination; armature reaction; synchronous reactance and impedance, equivalent circuit of alternator, relation between generated voltage and terminal voltage, voltage regulation of alternators using synchronous impedance, mmf, zpf and new A.S.A method.
Synchronous Machine-II
Salient pole machines; two reaction theory equivalent circuit model and phasor diagram; determination of Xd and Xq by slip test; SCR and its significance; regulation of salient pole alternator, power angle equation and characteristics; synchronizing of alternator with infinite busbar,; parallel operation and load sharing; synchronizing current, synchronizing power and synchronising torque coefficient; synchroscopes and phase sequence indicator; effect of varying excitation and mechanical torque,.
Synchronous machine-III
Synchronous motor operation, starting and stopping of synchronous motor, pull in torque, motor under load power and torque, reluctance torque, effect of excitation, effect of armature reaction, power factor adjustment, V curves, inverted V curves, synchronous motors as power factor correcting device, super synchronous and sub synchronous motors, hunting and damper winding efficiency and losses.
Analysis of short circuit oscillogram, determination of various transient, sub transient and steady reactances and time constants, expression of transient and sub transient reactances in terms of self and mutual inductances of various winding, short circuit current, equivalent circuit. Single phase synchronous motors- hysteresis motor, reluctance motor.
Repulsion motor, stepper motor, switched reluctance
Experiments can cover any of the above topics, following is a suggestive list:
To plot magnetisation characteristic of a separately excited DC generator
To perform load test on DC generators.
To perform load test on DC series and shunt motor
To perform Swinburn’s test on a DC machine and find out its efficiency under full load condition.
To conduct Hopkinson’s test on a pair of DC shunt machine.
To perform OCC and SCC test on an alternator and determine its regulation.
To determine regulation of alternator using mmf and zpf methods.
To synchronise alternator with infinite bus bar.
To plot V and inverted V curves for a synchronous motor
To find Xd and Xq of salient pole synchronous machine by slip test.
To Determine negative sequence and zero sequence reactance of an alternator.
To determine subtransient direct axis and quadrature axis synchronous reactances of salient pole machine.
M.G. Say,Performance & design of AC machines, CBS publishers & distributors, Delhi, 3rd edition
A.E. Clayton & N.N. Nancock, The Performance & design of DC machines CBS publications & distributors, Delhi, 3rd edition
P.S. Bhimbra, Electrical Machinery, Khanna Pub.
P.S. Bhimbra, Generalized theory of Electrical Machines, Khanna publishers, Delhi,
Ashfaq Husain, Electric Machines, Dhanpat Rai, New Delhi
I.J. Nagrath & D.P. Kothari, Electric Machines, Tata McGraw Hill , New Delhi,
Syed A. Nasar,Electric Machines & Power Systems, Volume I , Tata McGraw Hill, NewDelhi
A. E. Fitzerald, C. Kingsley & S.D. Umans , Electric Machinery Tata McGraw Hill ,New Delhi ,5th edition
Credit Based Grading System
Fault Analysis per unit, representation and its advantages, faults in power systems (Symmetrical & Unsymmetrical), Single line and equivalent impendence diagram representation of power system components. Symmetrical components and its application to power systems, fault analysis, Sequence networks and their interconnection for different types of faults, Effect of fault impedance, Current limiting reactors, its location and application, Short circuit calculation.
Requirement of relays, Primary & backup protection, Desirable qualities of relays, Concept of Pickup, reset & drop-off, Drop off/ Pickup ratio, inverse time & definite time charters tics, Attracted armature, Balanced Beam, Induction disc, Induction cup, Moving coil & moving Iron, Rectifier , Thermal, Bimetal directional relay, Frequency, DC, all or nothing relays. Pilot & negative sequence, Over current, Over Voltage, Directional, Differential and Distance relays, R-X diagram, Impedance mho & reactance relay.Introduction of static analog & digital relays, Classification of static relays.
Elementary principle of arc quenching, recovery & re-striking voltage, arc quenching devices, description and operation of Bulk oil, Minimum oil, Air break, Air blast, SF6, Vacuum circuit breakers and DC circuit breakers, their comparative merits, LT Switch gear, HRC fuses, current limiting reactor.& their design features, influence of reactors in CB ratings Testing of circuit breaker, Description of a simple testing station, direct & indirect testing.
Protection of Generators - Earth Fault, percentage, differential, Loss of excitation, Prime mover failure, Over current, Turn to turn fault, Negative phase sequence, heating, Reverse power protection schemes
Internal & external fault protection, Differential, Earth fault, Over Current, Over heating, Protection schemes, Protection of transmission lines, Over current, Distance and carrier current protection schemes.
Switching surges, Phenomena of Lightning, over voltage due to lightning, Protection against lightning, Lightning arrestors, selection of lightning arrestors, Surge absorbers and diverters, Rod gap, Horn gap expulsion type & valve type lightning arrestors, solid resistance and reactance earthing, Arc suppression coil, Earthing transformers, Earthwires, Earthing of appliances, insulation co-ordination, Definitions determination of line insulation, insulation level of substation equipment, co-ordination amongst items of substation equipment.
Determination of drop out factor of an instantaneous over current relay.
Determination of operating characteristic of IDMT relay.
Determination of operating characteristic of differential relay.
Study and operation of gas actuated protective relay.
Study and operation of static over current relay.
Determination of transmission line parameters using MATLAB.
Analysis of power system faults (Symmetrical & Asymmetrical) using MATLAB.
Study of SF6 circuit breaker
Protectional simulation study of generator, Transformer, Feeder & Motor protection.
B. Ravindran and M Chander, "Power System protection and Switchgear", New Age International.
Fundamentals of Power System protection Y.G.Paithankar & S.R. Bhide; E.E.E.
CL Wadhwa, Electrical Power systems, New age International.
Haddi Saadet, "Power System Analysis, TMH
A.R. Bergen, Vijay Vittal, "Power System Analysis, Pearson Education, Asia.
Switchgear & protection Sunil S. Rao. Khanna Publication.
Ravindra P. Singh, Switchgear & Power System Protection, PHI Learning.
Badrirka, Power System protection and switchgear, TMH.
Credit Based Grading System
Advantages and application of power electronic devices characteristics, Symbol & application of power diodes, power transistors, GTO, Triac, Diac, Power MOSFET, IGBT, LASCR, Fast recovery diode, schottey diode MCTs. Principle of operation of SCR, Two transistor analogy, brief idea of construction of SCR, Static characteristics of SCR, Condition of turn on & off of SCR Gate characteristics, Method for turning on of SCR, Turnoff methods, different commutation echniques (Class A,B,C,D,E, & F Commutation) firing of SCR, Use of pubic transformer and opto isolator in firing, Resistance firing Ckt, Resistance capacitance firing circuit, UJT firing cut, and ramp triggering, firing for 3-Φ circuit. SCR rating & protection of SCR over voltage, Over current, Suprior firing, Design of snubber circuit and protection of gate of SCR, heating, cooling & mounting of SCR series and parallel operation of SCR, String efficiency & problem associated
with series and parallel operation of SCR
Operation and analysis of single phase (Half wave & Full Wave) and multiphase (Three Phase) uncontrolled and controlled rectifier circuit with resistive, resistive & inductive load (continuous & non continuous conduction, Fw small & very large inductive loads) and RLE loads. Estimation of average load voltage and load current for above rectifier cirucits active and reactive power input. Effect of free wheeling diode and source inductance on performance of these rectifier circuits .
Comparison of mid point & Bridge rectifier circuits.
Series and parallel inverter, Voltage source & current source inverter, Single phase and three phase bridge inverter, Self cumulated inverters,, Mc- murray & MC murray bed ford inverters, Voltage control of single phase and three phase bridge inverter, Harmonics & their reduction techniques.
Principle of chopper operation, Various control strategies in chopper, Step up & step-up/step down choppers, chopper configuration (Type A,B, C,D, & E), Steady state analysis of chopper circuits, Current & voltage commutation of chopper circuits Jones & Morgens chopper
Single phase (mid point & bridge configuration) and three phase cyclo convertor
configuration and operating principles. AC voltage controllers (using SCRs & Traics) single phase full wave controller with R and RL load, Estimation of RMS load voltage, RMS load current and input power factor, three phase AC voltage controller (Without analysis) Dual converter Switched mode voltage regulator buck, Boost, Buch & Boost, Ck regulators.
LIST OF EXPERIMENTS
1- VI CHARACTERISTICS OF SCR
2- VI CHARACTERISTICS OF DIAC
3- VI CHARACTERISTICS OF BJT
4- CHARACTERISTICS OF TRIAC
5- VI CHARACTERISTICS OF MOSFET
6- TRANSFER CHARACTERISTICS OF MOSFET
7- OUTPUT CHARACTERISTICS OF IGBT
8- TRANSFER CHARACTERISTICS OF IGBT
9 - SINGLE PHASE SCR HALF CONTROLLED CONVERTER WITH R LOAD
10- 1Φ SCR FULLY CONTROLLED CONVERTER WITH R-LOAD
11 - STUDY OF 3Φ SCR HALF CONTROLLED CONVERTER
12- STUDY OF 3Φ SCR FULLY CONTROLLED CONVERTER
13- STUDY OF CLASSES OF COMMUTATION A,B,C,D,E,F.
M.H. Rashid, Power Electronics Circuits, Devices and Applications, Pearson
Education, Singapore, 1993.
M Ramsmoorthy, An Introduction to transistor and their application, Affiliated East-West Press.
P.C. Sen, Power Electonics, TMH.
M.D. Singh, K.B. Khanchandani, Power Electronics, TMH, Delhi, 2001.
Chakravarti A., Fundamental of Power Electronics and Drives, Dhanpat Ray & Co.,
Dr. P.S. Bhimbhra, Power Electonics, Khanna Pub.
Vedam Subramanyam, Power Electronics New Age International Revised II ed. 2006.
Randall Shaffer, Fundaments of Power Electronics With MATLAB Cengage Leaening 2008.
Credit Based Grading System
General energy problem: Energy use patterns and scope for conservation.
Energy audit: Energy monitoring, Energy accounting and analysis, Auditing and targeting. Energy conservation policy, Energy management & audit, Energy audit, Types of energy audit, energy management (audit), qualities and function of energy managers, language of an energy manager, Questionnaire, Check list for top management, Loss of energy in material flow, energy performance, Maximizing system efficiency, Optimizing, input energy requirements, Energy auditing instruments, Material load energy balance diagram.
Thermodynamics of Energy Conservation. Basic principle. Irreversibility and second law efficiency analysis of systems. Primary energy sources, optimum use of prime-movers, energy efficient house keeping, energy recovery in thermal systems, waste heat recovery techniques, thermal insulation. Thermal energy audit in heating, ventilation and air conditioning. Maintenance and Energy audit – friction, lubrication and tribo-logical innovations. Predictive and preventive maintenance.
Load curve analysis & load management DSM, Energy storage for power systems (Mechanical, Thermal, Electrical & Magnetic) Restructuring of electric tariff from energy conservation consideration, Economic analysis depreciation method, time value of money, Evaluation method of projects, replacement analysis, special problems inflation risk analysis. Pay back period, Energy economics, Cost Benefit Risk analysis, Pay back period.
Energy efficient electric drives, Energy efficient motors V.S.D. power factor improvement in power system. Energy Conservation in transportation system especially in electric vehicle. Energy flow networks, Simulation & modeling, formulation & Objective & constraints, alternative option, Matrix chart.
Energy conservation task before industry, Energy conservation equipments, Co- Generation, Energy conservation process, Industry Sugar, Textiles, Cement Industry etc Electrical Energy Conservation in building, heating and lighting. domestic gadgets
Energy Management – W.R. Murphy & G. Mckey Butler worths.
Energy Management Head Book- W.C. Turner, John Wiley
Energy Management Principles- Craig B. Smith, Pergamon Press
Energy Conservation- Paul O Callagan- Pergamon Press
Design & Management of energy conservation. Callaghan,
Elect, Energy Utilization & Conservation. Dr. Tripathi S.C.,
Credit Based Grading System
The primary objective of the course is to introduce concepts about the properties, characteristics, applications and limitations of Electrical & Electronics engineering materials.
Student after successful completion of course is expected to possess an understanding of basic of Electrical & Electronics engineering materials.
A.J. Dekker; Electrical Engineering Materials; PHI.
William F Smith, JavadHashemi, Ravi Prakash ‘Material science and engineering’, McGraw Hill.
James F. Shackelford, Madanapalli K. Muralidhara ‘Introduction to Materials Science for Engineers’, Pearson
Ian P. Jones ‘ Materials Science for Electrical and Electronics Engineers’ Oxford university press
C. S. Indulkar and S. Thruvengadem; Electrical Engineering Materials; S. Chand.
TTTI Madras; Electrical Engineering Materials; TMH.
John Allison; Electrical Engineering Material s & Devices; TMH.
Kasap; Electronic Materials and devices; TMH
V. Raghvan; Material Science & Engineering; PHI.
S.P. Seth & P.V. Gupta; Electrical Engineering Materials; Dhanpat Rai.