Paper Code: ETEC-112	L          T          C
Paper: ELECTRICAL SCIENCE	2           1           3

UNIT - I

Circuit Analysis:

Ohm's Law, KCL, KVL Mesh and Nodal Analysis, Circuit parameters, energy storage aspects, Superposition, Thevenin's, Norton's, Reciprocity, Maximum Power Transfer Theorem, Millman's Theorem, Star-Delta Transformation. Application of theorem to the Analysis of dc circuits.

UNIT - II

A.C.Circuits:

R-L, R-C, R-L-C circuits (series and parallel), Time Constant, Phasor representation, Response of R-L, R-C and R-L-C circuit to soinusoidal input Resonance-series and parallel R-L-C Circuits, Q-factor, Bandwidth.

UNIT - III

Measuring Instruments:

Principles, Construction and application of moving coil, moving iron, dynamometer type, induction type instruments, extension of range of ammeter, voltmeter (shunt and multiplier), Two-wattmeter method, for the measurement of power, Cathol-ray Oscilloscope and Applications.

UNIT - IV

Transformers:

Construction and Working principles and phaser diagrams of Single-phase Transformer, Emf equation, Equivalent circuit, Regulation and efficiency, and Auto transformer.

Rotating Machines:

Construction and working principles of dc motor and generator and its characteristics Applications of DC machines
Construction and working principles of 3-j-Induction motor, Torque-speed characteristics, and Industrial applications.

TEXT BOOKS:

1. P.C. Sen “Principles of Electric Machines and Power Electronics”, Wiley Eastern 2003.
2. Vincent DEL TORO “Electrical Engineering Fundamental’s Prentice Hall India”, Ed 2002.