both objective and conventional type papers)
(1) Em Theory:
Electric and magnetic fields. Gauss' Law and Ampere's Law. Fields in
dielectrics, conductors and magnetic materials. Maxwell's equations. Time
varying fields. Plane Wave propagation in di-electric and conducting media.
(2) Electrical Materials:
Band Theory, Conductors, Semiconductors and Insulators. Super-conductivity.
Insulators for electrical and electronic applications. Magnetic materials. Ferro
and ferri magnetism. Ceramics: Properties and applications. Hall effect and its
applications. Special semi-conductors.
(3) Electrical Circuits:
Circuit's elements. Kirchhoff 's 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-part 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, noise level, etc. Data
acquisition systems. A/D and D/A Converters.
(5) Control Systems:
Mathematical modeling 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 types 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
modeling 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.
(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. Z-Bus 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
(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,
multi-stage amplifiers and feed-back amplifiers, D.C. amplifiers, Oscillators.
Large signal amplifiers, coupling methods, push pull amplifiers, operational
amplifiers, and wave shaping circuits. Multi-vibrators and flip-flops and their
applications. Digital logic gate families, universal gates combinational
circuits for arithmetic and logic operation, sequential logic circuits.
Counters, registers, RAM and RGMs.
Micro-processor architecture Instruction set and simple assembly language
programming. Interfacing for memory and I/O. Applications of Micro-processors in
(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
(6) Power Electronics:
Power semi-conductor devices. Thyristor. Power transistor, GTOs and MOS-FETs.
Characteristics and operation. AC to DC Converters; 1-phase and 3-phase DC to DC
Converters; AC regulators. Thyristor controlled reactors, switched capacitor
Inverters; Single-phase and 3-phase. Pulse width modulation. Sinusoidal
modulation with uniform sampling. Switched mode power supplies.