ELECTRICAL ENGINEERING PAPER - I
1. EM Theory
Electric and magnetic fields. Gauss's Law and Amperes Law. Fields in dielectrics, conductors and magnetic
materials. Maxwell's equations. Time varying fields. Plane-Wave propagating in dielectric and conducting
media. Transmission lines.
2. Electrical Materials
Band Theory, Conductors, Semi-conductors and Insulators. Super-conductivity. Insulators for electrical and
electronic applications. Magnetic materials. Ferro and ferry magnetism. Ceramics, Properties and
applications. Hall Effect and its applications. Special semiconductors.
3. Electrical Circuits
Circuits elements. Kirchhoffs Laws. Mesh and nodal analysis. Network Theorems and applications. Natural
response and forced response. Transient response and steady state response for arbitrary inputs. Properties
of networks in terms of poles and zeros. Transfer function. Resonant circuits. Three phase circuits. Two-port
networks. Elements of two-element network synthesis.
4. Measurements and Instrumentation
Units and Standards. Error analysis, measurement of current, Voltage, power, Power-factor and energy.
Indicating instruments. Measurement of resistance, inductance, Capacitance and frequency. Bridge
measurements. Electronic measuring instruments. Digital Voltmeter and frequency counter. Transducers and
their applications to the measurement of non-electrical quantities like temperature, pressure, flow-rate
displacement, acceleration, and noise level etc. Data acquisition systems. A/D and D/A converters.
5. CONTROL SYSTEMS.
Mathematical modelling of physical systems. Block diagrams and signal flow graphs and their reduction.
Time domain and frequency domain analysis of linear dynamical system. Errors for different type of inputs
and stability criteria for feedback systems. Stability analysis using Routh-Hurwitz array, Nyquist plot and
Bode plot. Root locus and Nicols chart and the estimation of gain and phase margin. Basic concepts of
compensator design. State variable matrix and its use in system modelling and design. Sampled data
system and performance of such a system with the samples in the error channel. Stability of sampled data
system. Elements of non-linear control analysis. Control system components, electromechanical, hydraulic,
pneumatic components.
ELECTRICAL ENGINEERING PAPER - II
1. Electrical Machines and Power Transformers
Magnetic Circuits - Analysis and Design of Power transformers. Construction and testing. Equivalent circuits.
Losses and efficiency. Regulation. Auto-transformer, 3-phase transformer. Parallel operation.
Basic concepts in rotating machines. EMF, torque, basic machine types. Construction and operation, leakage
losses and efficiency.
B.C. Machines. Construction, Excitation methods. Circuit models. Armature reaction and commutation.
Characteristics and performance analysis. Generators and motors. Starting and speed control. Testing,
Losses and efficiency.
Synchronous Machines. Construction. Circuit model. Operating characteristics and performance analysis.
Synchronous reactance. Efficiency. Voltage regulation. Salient-pole machine, Parallel operation. Hunting.
Short circuit transients.
Induction Machines. Construction. Principle of operation. Rotating fields. Characteristics and performance
analysis. Determination of circuit model. Circle diagram. Starting and speed control.
Fractional KW motors. Single-phase synchronous and induction motors.
2. Power systems
Types of Power Stations, Hydro, Thermal and Nuclear Stations. Pumped storage plants. Economics and
operating factors.
Power transmission lines. Modeling and performance characteristics. Voltage control. Load flow studies.
Optimal power system operation. Load frequency control. Symmetrical short circuit analysis. ZBus
formulation. Symmetrical Components. Per Unit representation. Fault analysis. Transient and steady-state
stability of power systems. Equal area criterion.
Power system Transients. Power system Protection Circuit breakers. Relays. HVDC transmission.
3. ANALOG AND DIGITAL ELECTRONICS AND CIRCUITS
Semiconductor device physics, PN junctions and transistors, circuit models and parameters, FET, Zener,
tunnel, Schottky, photo diodes and their applications, rectifier circuits, voltage regulators and multipliers,
switching behavior of diodes and transistors.
Small signal amplifiers, biasing circuits, frequency response and improvement, multistage amplifiers and
feed-back amplifiers, D.C. amplifiers, Oscillators. Large signal amplifiers, coupling methods, push pull
amplifiers, operational amplifiers, wave shaping circuits. Multivibrators and flip-flops and their applications.
Digital logic gate families, universal gates-combination circuits for arithmetic and logic operational,
sequential logic circuits. Counters, registers, RAM and ROMs.
4. MICROPROCESSORS
Microprocessor architecture-Instruction set and simple assembly language programming. Interfacing for
memory and I/O. Applications of Micro-processors in power system.
5. COMMUNICATION SYSTEMS
Types of modulation; AM, FM and PM. Demodulators. Noise and bandwidth considerations. Digital
communication systems. Pulse code modulation and demodulation. Elements of sound and vision
broadcasting. Carrier communication. Frequency division and time division multiplexing, Telemetry system
in power engineering.
6. POWER ELECTRONICS
Power Semiconductor devices. Thyristor. Power transistor, GTOs and MOSFETS. Characteristics and
operation. AC to DC Converters; 1-phase and 3-phase DC to DC Converters; AC regulators. Thyristor
controlled reactors; switched capacitor networks.
Inverters; single-phase and 3-phase. Pulse width modulation. Sinusoidal modulation with uniform sampling.
Switched mode power supplies.
GENERAL ABILITY TEST
Part A: General English: The question paper in General English will be designed to test the candidate's
understanding of English and workmanlike use of words.
Part B: General Studies: The paper in General Studies will include knowledge of current events and of such
matters as of everyday observation and experience in their scientific aspects as may be expected of an
educated person. The paper will also include questions on History of India and Geography of a nature which
candidates should be able to answer without special study.
