IES ELECTRICAL ENGINEERING SYLLABUS I IES ELECTRICAL ENGINEERING EXAM SYLLABUS I

INDIAN ENGINEERING SERVICES

IES Syllabus  

ELECTRICAL ENGINEERING

PAPER-I

1.ELECTROMAGNETIC THEORY:

• Electric & magnetic fields.Gauss’s Law & 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 MATERIAL: 

• Band Theory,Conductors,Semi-conductors & Insulators.Super-conductivity. Insulators for electrical & electronic application.Magnetic materials.Ferro & ferri magnetism.Ceramics, Properties and applications. Hall effect & its applications. Special semi conductors.

3.ELECTRICAL CIRCUITS:

• Circuit elements.Kirchoff’s Laws.Mesh & nodal analysis.Network Theorems & application. Natural response and forced response.Transient response and steady state response for arbitrary inputs.Properties of networks in terms of poles & zeros.Transfer function. Resonant circuits. Threephase circuits. Two-port networks.Elements of two-element network synthesis.

4.MEASUREMENT & INSTRUMENTATION: 

• Units & Standard.Error analysis,measurement of current,Voltage,Power,Power-factor & energy. Indicating instruments.Measurement of resistance, inductance, Capacitance and frequency. Bridge measurements. Electronic measuring instruments. Digital Voltmeter and frequency counter.Transducers & 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 modelling of physical systems.Block diagrams & signal flow graphs & their reduction. Time domain and frequency domain analysis of linear dynamical system. Errors for different type of inputs & stability criteria for feedback systems. Stability analysis using Routh-Hurwitz array, Nyquist plot & Bode plot. Root locus & Nicols chart and the estimation of gain and phase margin. Basic concepts of compensator design. State variable matrix & its use in system modelling & 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.

PAPERS-II

1.ELECTRICAL MACHINES & POWER TRANSFORMERS: 

• Magnetic Circuits -Analysis & Design of Power transformers.Construction & testing. Equivalent circuits.Losses & efficiency. Regulation.Auto-transformer, 3-phase transformer. Parallel operation Basic concepts in rotating machines. EMF, torque,basic machine types. Construction & operation, leakage losses & 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 transmission.

3.ANALOG & DIGITAL ELECTRONICS & CIRCUITS: 

• Semiconductor device physics, PN junctions & transistors,circuit models & parameters, FET, Zener, tunnel, Schottky, photo diodes and their applications, rectifier circuits, voltage regulators & multipliers,switching behavior of diodes & transistors.Small signal amplifiers, biasing circuits,frequency response & improvement, multistage amplifiers & 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 & PM. De-modulators. Noise & bandwidth considerations. Digital communication systems. Pulse code modulation and demodulation.Elements of sound & 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 & MOSFETS. Characteristics & operation.AC to DC Converters;1-phase & 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.

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