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UNIT-I
D.C Circuits: Electrical circuit elements (R, L and C), Voltage and current sources, Kirchhoff current and voltage laws, Analysis of simple circuits with D.C excitation, Superposition,Thevenin and Norton theorems.
UNIT-II
A.C Circuits: Representation of sinusoidal waveforms, Peak and rms values, Phasor representation, Real power, Reactive power, Apparent power, Power factor, Analysis of single-phase A.C circuits consisting of R, L, C and RL, RC, RLC combinations (series only), Three phase balanced circuits, Voltage and current relations in star and delta connections
UNIT-III
Transformers and 3-ph Induction Motors: Transformers, Electromagnetic induction, Faraday’s laws, Statically induced E.M.F, Lenz law, BH characteristics, Ideal and practical transformer, Losses and efficiency, Auto-transformer and three phase transformer connections. Three Phase Induction Motor: Generation of rotating magnetic fields, Construction and working of a three-phase induction motor, Squirrel cage IM, Slip ring IM, Applications
UNIT-IV
Single-Phase Induction Motor and D.C Machines: Single-phase induction motor, Construction and principle of operation, Capacitor start and capacitor run motor, Applications. D.C Generators: Dynamically induced E.M.F, Fleming’s right hand and left hand rules, Construction and principle of operation of D.C generator, E.M.F equation, Types of D.C generators, O.C.C. characteristics, Applications. D.C Motors: Principle of Operation of D.C Motor, Types of D.C Motors, Applications.
UNIT-V
Electrical Installations: Components of LT Switchgear: Switch Fuse Unit(SFU), MCB, ELCB, MCCB, Types of wires and cables, Earthing, Types of batteries, Important characteristics for batteries, Elementary calculations for energy consumption, Power factor improvement and battery backup
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CategoriesEngineering
Format EPUB
TypeeBook