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KIITEE Syllabus for Electrical Engineering

Unit-I: Circuit and Network Theory:

i) DC and AC circuit: RMS value, J-operator, average value, RL,RC,RLC series and parallel, power and energy, Kirchhof’s law, transient response to DC circuit, resonance.

ii) Electrostatic and magnetic circuits: Hysterisis loop, Biot Savart law, magnetic circuit, capacitor with composite dielectric, coupled circuit, magnetizing force, grouping of capacitor, mmf, intensity and magnetic flux.

iii) Network Theorem: Thevenin’s theorem, Max. power transfer theorem, Norton’s theorem, reciprocity theorem, Mesh and nodal analysis, star-delta transformation, superposition theorem.

iv) Polyphase circuit: Measurement of 3-phase power, relationship between line and phase quantity in star-delta connection, reactive and apparent power, active.

v) Network functions and parameters: ABCD parameter, z-parameter, h-parameter, y-parameter and their relationship, network functions of one port and two port, network.

vi) Filters: Stop band and cut off frequency prototype low pass, ideal passive filter, band pass and band stop filter, condition for pass band.

Unit-II: Power System and Utilisation of Power:

i) EHV transmission for ac and dc, Kelvin’s law for economical size of conductor, distribution systems for ac and dc, Corona, performance of transmission lines (short and medium), Sag calculation.

ii) Power factor improvement and economic aspects, cables (types and testing), transmission and distribution lines, earthing of substation, tarrif, insulators and types, Ferranti effect and skin effect, string efficiency.

iii) Protective systems (primary and back up protection, types of relay), static relays, lighting arrestors and surge diverter, faults in power system, fuse and circuit breaker (types and maintenance).

iv) Electrical welding, filament lamp and discharge lamps, laws of illumination and design of lighting schemes, faraday’s law of electrolysis, electrical heatings, commercial use of electrolysis.

v) DC and AC traction motors, choice of electric drives, braking and control of motors.

Unit-III: Machines:

i) DC Machines: Starting and speed control, types, power relation, braking, power relation, calculation of efficiency, different characteristics, voltage.

ii) Transformer: All day efficiency, auto transformer, efficiency, parallel operation, CT and PT, connection of three phase transformer and parallel operation, charging transformer, emf. equation, OC and SC test, equivalent circuit, construction, losses, cooling, transformer on No load and On load. iii) Alternator on load, characteristics, regulation and OC, SC test of alternator, parallel operation and load division, types of alternator, armature reaction, constructional detail, emf equation, armature winding. Synchronous motor: Torque, power angle characteristics, power development, v-curve application, construction and principle of operation.

iv)Induction motor: Construction, torque-slip curve, principle of operation, characteristics, speed control, method of starting, induction generator and application, production of rotating magnetic field.

v) Different 1-phase induction motor and ac commutator motor, rotating field theory of 1-phse induction motor, Ferrari’s principle.

Unit-IV: Power Electronics and Drives:

Protection of SCR controlled rectifiers and inverters, DC motor control (control rectifier device for armature and field control), DC and AC regulated power supply, PLL control, construction and principle of operation of power devices (power diode, power transistor, SCR, MOSFET,GTO,IGBT,DIAC,TRIAC,UJT).

Unit-V: Measurements:

Measurement of resistance, types of transducers (resistive, inductive and capacitive), inductance and capacitance, Piezoelectric device, hall effect, photoelectric device, optical pyrometer, thermocouple, digital trasducers, thermometer, tachogenerator ( AC and DC), deflecting, calibration of instrument, controlling and damping arrangements, dynamometer type wattmeter, AC and DC voltmeter and ammeter and extension of range, errors and corrections, induction instruments, power factor meter, frequency meter.

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