UPSC Exam Syllabus of Electrical Engineering

UPSC Electrical Engg.
Written by Dr. SS

This blog aims to help you in the preparation of the UPSC exams, ranging from the syllabus to books and other reading list and tips. Here we are giving you a detailed UPSC Electrical Engineering syllabus which is one optional subject for UPSC Mains.

 To appear in UPSC Civil Services Mains exam, you need to have complete awareness about  UPSC Mains Syllabus and exam pattern.  To get complete information, you can check the given links.

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UPSC Electrical Engineering syllabus

UPSC Electrical Engineering Syllabus for Mains


Circuit Theory:

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

Signals & Systems:

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

E.M. Theory:

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

Analog Electronics:

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

Digital Electronics:

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

Energy Conversion:

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

Power Electronics and Electric Drives:

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

Analog Communication:

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

IAS Electrical Engineering Syllabus and Books


 Control Systems:

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

Microprocessors and Microcomputers:

PC organization; CPU, register set, instruction set, timing diagram, interrupts, programming, memory interfacing, I/O interfacing, programmable peripheral devices.

Measurement and Instrumentation:

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

Power Systems: Analysis and Control:

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

Power System Protection:

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

Digital Communication:

Pulse code modulation (PCM), delta modulation (DM), differential pulse code modulation (DPCM), Digital modulation and demodulation schemes: amplitude, phase and frequency keying schemes (PSK, ASK, FSK). Error control coding: error detection and correction, linear block codes, convolution codes. Data networks, 7-layer architecture. Information measure and source coding.

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UPSC aspirants with Electrical Engineering appears in IAS and IES both exams. Both are very tough and needs to be prepared with the right books and proper strategy. Mains Syllabus is almost the same for both. Aspirants are advised to check old question papers of both exams to have the clear idea of the level.

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Dr. SS

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