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UPSC Optional Subject Syllabus: Electrical Engineering PDF Download

Paper ‐ I

1. Circuits—Theory

  • Circuit components; network graphs; KCL, KVL; Circuit analysis methods : nodal analysis, mesh analysis; basic network theorems and applications; transient analysis : RL, RC and RLC circuits; sinusoidal steady state analysis; resonant circuits; coupled circuits; balanced 3-phase circuits. Two-port networks.

2. Signals and Systems

  • Representation of continuous-time and discrete-time signals and systems; LTI systems; convolution; impulse response; time-domain analysis of LTI systems based on convolution and differential/difference equations. Fourier transform, Laplace transform, Z-transform, Transfer function. Sampling and recovery of signals DFT, FFT Processing of analog signals through discrete-time systems.

3. E.M. Theory

  • Maxwell’s equations, wave propagation in bounded media. Boundary conditions, reflection and refraction of plane waves. Transmission lines : travelling and standing waves, impedance matching, Smith chart.

4. Analog electronics

  • Characteristics and equivalent circuits (large and small-signal) of Diode, BJT, JFET and MOSFET. Diode circuits : Clipping, clamping, rectifier. Biasing and bias stability. FET amplifiers. Current mirror; Amplifiers : single and multi-stage, differential, operational feedback and power. Analysis of amplifiers; frequency-response of amplifiers. OPAMP circuits. Filters; sinusoidal oscillators : criterion for oscillation; single-transistor and OPAMP configurations. Function generators and wave-shaping circuits. Linear and switching power supplies.

5. Digital Electronics 

  • Boolean algebra; minimisation of Boolean functions; logic gates; digital IC families (DTL, TTL, ECL, MOS, CMOS). Combinational circuits : arithmetic circuits, code converters, multiplexers and decoders. Sequential circuits: latches and flip-flops, counters and shift-registers. Comparators, timers, multivibrators. Sample and hold circuits, ADCs and DACs. Semiconductor memories. Logic implementation using programmable devices (ROM, PLA, FPGA).

6. Energy Conversion

  • Principles of electromechanical energy conversion : Torque and emf in rotating machines. DC machines : characteristics and performance analysis; starting and speed control of motors. Transformers : principles of operation and analysis; regulation, efficiency; 3-phase transformers. 3-phase induction machines and synchronous machines : characteristics and performance analysis; speed control. 

7. Power Electronics and Electric Drives 

  • Semi-conductor power devices: diode, transistor, thyristor, triac, GTO and MOSFET-static characteristics and principles of operation; triggering circuits; phase control rectifiers; bridge converters : fully-controlled and half-controlled; principles of thyristor choppers and inverters; DC-DC converters; Switch mode inverter; basic concepts of speed control of dc and ac motor drives applications of variable-speed drives. 

8. Analog Communication 

  • Random variables: continuous, discrete; probability, probability functions. Statistical averages; probability models; Random signals and noise : white noise, noise equivalent bandwidth; signal transmission with noise; signal to noise ratio. Linear CW modulation : Amplitude modulation : DSB, DSB-SC and SSB. Modulators and Demodulators; Phase and Frequency modulation : PM & FM signals; narrows band FM; generation & detection of FM and PM, Deemphasis, Preemphasis. CW modulation system : Superhetrodyne receivers, AM receivers, communication receivers, FM receivers, phase locked loop, SSB receiver Signal to noise ratio calculation or AM and FM receivers.

Paper - II

1. Control Systems

  • Elements of control systems; block-diagram representations; open-loop & closed-loop systems; principles and applications of feed-back. Control system components. LTI systems : time-domain and transform-domain analysis. Stability : Routh Hurwitz criterion, root-loci, Bode-plots and polor plots, Nyquist’s criterion; Design of lead-lad compensators. Proportional, PI, PID controllers. State-variable representation and analysis of control systems. 

2. Microprocessors and Microcomputers

  • PC organisation; CPU, instruction set, register settiming diagram, programming, interrupts, memory interfacing, I/O interfacing, programmable peripheral devices. 

3. Measurement and Instrumentation 

  • Error analysis; measurement of current voltage, power, energy, power-factor, resistance, inductance, capacitance and frequency; bridge measurements. Signal conditioning circuit; Electronic measuring instruments : multimeter, CRO, digital voltmeter, frequency counter, Q-meter, spectrum-analyser, distoration-meter. Transducers : thermocouple, thermistor, LVDT, strain-guage, piezo-electric crystal. 

4. Power Systems: Analysis and Control 

  • Steady-state performance of overhead transmission lines and cables; principles of active and reactive power transfer and distribution; per-unit quantities; bus admittance and impedance matrices; load flow; voltage control and power factor correction; economic operation; symmetrical components, analysis of symmetrical and unsymmetrical faults. Concepts of system stability : swing curves and equal area criterion. Static VAR system. Basic concepts of HVDC transmission. 

5. Power System Protection 

  • Principles of overcurrent, differential and distance protection. Concept of solid state relays. Circuit brakers. Computer aided protection : introduction; line, bus, generator, transformer protection; numeric relays and application of DSP to protection. 

6. Digital Communication

  • Pulse code modulation (PCM), defferential pulse code modulation (DPCM), delta modulation (DM), Digital modulation and demodulation schemes : amplitude, phase and frequency keying schemes (ASK, PSK, FSK). Error control coding : error detection and correction, linear block codes, convolation codes. Information measure and source coding. Data networks, 7-layer architecture.
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FAQs on UPSC Optional Subject Syllabus: Electrical Engineering

1. What is the syllabus for the UPSC optional subject of Electrical Engineering?
Ans. The syllabus for the UPSC optional subject of Electrical Engineering includes topics such as electrical circuits, electrical machines, power systems, control systems, electronic devices and circuits, signals and systems, electromagnetic fields, power electronics, and measurement and instrumentation. It also covers topics related to electrical materials, electrical and electronic measurements, analog and digital electronics, and electrical power generation, transmission, and distribution.
2. What are the frequently asked questions (FAQs) about the UPSC optional subject of Electrical Engineering?
Ans. Some frequently asked questions about the UPSC optional subject of Electrical Engineering include: 1. How do I prepare for the electrical circuits section of the syllabus? 2. What are the important topics to focus on in the power systems section? 3. Are there any recommended books or study materials for the control systems topic? 4. How can I improve my understanding of electronic devices and circuits? 5. What are the career prospects for candidates with a background in Electrical Engineering?
3. How can I best prepare for the electrical circuits section of the Electrical Engineering syllabus for UPSC?
Ans. To prepare for the electrical circuits section of the Electrical Engineering syllabus for UPSC, it is important to understand the basic concepts of circuit analysis, network theorems, and the behavior of different types of circuits. Practice solving numerical problems and analyze circuit diagrams. It is also helpful to refer to standard textbooks and study materials recommended for this topic. Additionally, solving previous years' question papers and mock tests will give you a better understanding of the exam pattern and help you identify areas where you need improvement.
4. Are there any recommended books or study materials for the UPSC optional subject of Electrical Engineering?
Ans. Yes, there are several recommended books and study materials for the UPSC optional subject of Electrical Engineering. Some popular ones include: 1. "Electrical Engineering: Concepts and Applications" by S.A. Nasar 2. "Electrical Power Systems" by C.L. Wadhwa 3. "Control Systems Engineering" by Norman S. Nise 4. "Electrical Machines" by P.S. Bimbhra 5. "Signals and Systems" by Alan V. Oppenheim and Alan S. Willsky Apart from these, there are various online resources, video lectures, and study guides available that can supplement your preparation.
5. What are the career prospects for candidates with a background in Electrical Engineering?
Ans. Candidates with a background in Electrical Engineering have a wide range of career prospects. They can work in industries such as power generation, transmission, and distribution, renewable energy, telecommunications, electronics manufacturing, automation, and control systems. They can also pursue careers in research and development, consulting, government organizations, and academia. With the increasing demand for electrical engineers in various sectors, there are ample job opportunities and scope for growth in this field.
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