Principles of Electrical Engineering

Transient Analysis (First and Second Order Circuits) Transient Response of RL, RC series, RLC circuits for circuits for DC excitations, Initial conditions, Solutions using differential equations approach and Laplace transform method. Two Port Networks Impedance parameters, Admittance parameters, Hybrid parameters. Transmission (ABCD) parameters, Conversion of one parameter to another, Conditions for reciprocity and symmetry, Interconnection of two port networks in series, Parallel and cascaded configuration, Image parameters, Illustrative problems. Filters Classification of filters, Filter networks, Classification of pass band and stop band, Characteristics impedance in the pass and stop bands; Constant-k low pass filter, High pass-filter, m-derived T-section, Band pass filter and band elimination filter, IIlustrative problems. Symmetrical Attenuators Symmetrical attenuators - T-type attenuator, -type attenuator, Bridged T- type attenuator, Lattice attenuator. D.C. Generators Principle of operation of DC machines, EMF equation, Types of generators, Magnetization and load characteristics of DC generators. D.C. Motors DC motors, Types of DC motors, Characteristics of DC motors, Losses and efficiency, Swinburne's test, Speed control of DC shunt motor, Flux and armature voltage control methods. Transformers and their Performance Principle of operation of single phase transformer, Types, Constructional features, Phasor diagram on no load and load, Equivalent circuit, Losses and efficiency of transformer and regulation , OC and SC tests, Predetermination of efficiency and regulation (simple problems). Single Phase Induction Motors Principle of operation, Shaded pole motors, Capacitor motors, AC servomotor, AC Tachometes, Synchros, Stepper motors, Characteristics.