capacitance, frequency and loss angles. Indicating instruments. DC and AC Bridges, Electronic measuring instruments. Multimeter, digital voltmeter, frequency counter, Q-meter, oscilloscope Techniques, special purpose CROs. Transducers and their classification. Temp. Displacement, strain pressure, velocity transducers, Themmo-couple, thermistor, LVDT, strain gauges, piezo-electric crystal etc. transducers. Applications of transducers in the measurement of non-electrical quantifies like pressure, temperature, displacement, velocity, acceleration, flow-rate etc., Data-acquisition systems.
(iv) Analog & Digital Electronics : Semiconductors and semiconductor diodes & zener-diode. Bi-polar junction transistor and their parameters. Transistor biassing, analysis of all types of amplifiers including feedback and d.c. amplifiers. Operational amplifiers and their application, Analog computera. Feedback oscillators-colpitts and Hartley types, waveform generators. Multivibrators. Boolean algebra, Logic gates. Combinational and sequential digital circuits. Semiconductor memories, A/D & D/A Converters. Microprocessor; Number System and codes, elements of microprocessors & their important applications.
(v) Electrical Machines : D.C. Machines; Commutation and armature reaction, characteristics
and performance of motors and generators. Applications, starting and speed control. Synchronous generators: Armature reaction, voltage regulation, parallel operation. Single and three-phase induction motors: Principle of operation, performance characteristics, starting and speed control.
Synchronous Motors: Principle of operation. Performance analysis, Hunting. Synchronous condenser.
Transformers: Construction Phase or diagram, equivalent circuit, voltage regulation, Performance, Auto transformer, instrument transformer. Three phase transformer.
(vi) Material Science: Theory of Semiconductors, Conductors and insulators. Superconductivity. Various insulators used for Electrical & Electronic applications. Different magnetic materials, properties and applications. Hail effect.

Top

Paper II



Section A

1. Control Engineering: Mathematical modelling of physical dynamic systems. Block diagram and single flow graph. Transfer function. Time response and frequency response of linear systems. Error evaluation. Blode-Plot, Polar Plot and Nichol's chars, gain Margin and phase margin. Stability of linear feedback control systems. Routh-Hurwitz and Nayquist criteria. Route locus technique. Design of compensators. State-variable methods in system modelling, analysis and design. Controllability and observability and their testing methods. Polo placement design using state variables feedback. Control system components (Potentiometers, Tachometers, synchros & Servomotors)
2. Industrial Electronics: Various power semiconductor devices. Thyristor & its protection and series-parallel operation. Single phase and polyphase rectifiers. Smoothing filters, D.C. regulated power supplies. Controlled converters and inventors. choppers, Cyclo-converters A.C. voltage regulators. Application to variables speed drives Induction and dielectric heating. Timers and welding circuits.

SECTION-B

HEAVY CURRENT
(3) Electrical Machines :
1. Fundamentals of electromechanical energy conversion. Analysis of electromagnetic torque and induced voltages. The general torque equation.
2. 3-Phase induction motors: Concept of revolving field. Induction motor as a transformer. Phase or diagram and equivalent circuit. Performance evaluation. Correlation of induction motor
operation with basic torque relations. Torque-speed characteristics. Circle diagram starting and speed control methods.
3. Synchronous Machines : Generation of e.m.f. Linear and non- liner and analysis. Equivalent circuit. Experimental determination of leakage and snychronous reactances.Theory of salient pole machines. Power equation. Parallel Operation. Transient and subtransient reactences and time constants. Synchronous motor. Phasor diagram and equivalent circuit. Performance, V-curves. Power factor control, hunting.
4.  Special machines : Two phase a.c. servomotors. Equivalent circuit and performance. Stepper motors. Methods of operation, Drive amplifiers. Half stepping. Reluctance type stepper motor, Principles and working of universal motor. Single phase a.c. compensated series motor. Principle and working of charge motor.

(4) Electric Drives : Fundamentals of electric drive. Rating estimation. Electric braking. Electromechanical transients during starting and braking & time and energy calculations. Load equalization. Solid stase control of d.c. three phase induction and synchronous motors. Applications of electric motors.
(5) Electric Traction : Various systems of tract electrification and their comparison. Mechanics of train movement. Estimation of tractive effort and energy requirement. Traction motors and their characteristics.
(6) Power Systems and Protection:
1. Types of Power Station: Selection of site. General layout of thermal, hydro and nuclear stations. Economics of different types. Base load and peak load stations. Pumped storage plants. 2. Transmission and Distribution: A.C. and D.C. Transmission systems. Transmission fine parameters and calculations. Performance of short, medium and long transmission fines. A.B.C.D. parameters. Insulators. Mechanical design of overhead transmission fines and Sag calculation, corona and its effects, Radia interference. EHV AC and HVDC transmission lines underground cables. per unit representation of power system. Symmetrical and unsymmetrical fault analysis. Symmetrical components and their application to fault analysis. Load flow analysis using gauss-seidal and Newton-Raphson methods. Fast de-coupled load flow. Steady state and transient stability. Equal area criterion Economic operation of power system incremental fuel costs and fuel rates. Penalty factors. ALFC and AVR control for real time operation of inter connected power system.
3. Protection: Principles of arc extinction. Classification of circuit break. Restriking phenomenon. Calculation of restriking and recovery voltages. Interruption of small inductive and capacity Ne currents. Testing of Circuit Breakers.
4. Relaying Principles: Primary and back-up relaying over current, differential impedance and direction relaying principles. Constructional details. Protection schemes for transmission fine. Transformer] generator and bus protection. Current and potential transformer and their applications in relaying. Travelling waves. Protection against surges, Surge impedance.
(Or)

SECTION-C

Light Current
(7) Communication Systems: Amplitude, Frequency and phase modulation andtheir coparison, generationand detection of ampldute, frequency, phase and pulse modulatid signals using oscillators. Modulators and demodulators. Noise problems. Channel efficiency. Sampling theorem. Sound and vision broadcast transmitting and receiving systems. Antennas and feeders. Transmission fines at audio, radio and ultrahigh frequencies. fiber optics and optical communication systems. Digital communications, pulse code modulation. Data, communication sate-lide communication. Computer communication system- LAN ISDN etc, Electronic Exchanges.
(8) Microwaves: Electromagnetic waves inguided media wave guides. Cavhy resonators and Microwave tubes, Magnetrons, Klystrons and TWT. Solid stase microave devices. Microwave amplifiers. Microwave receivers Microwave filters and measurements. Microwave antennes.