BASIC ELECTRICAL ENGINEERING (Book)

BASIC ELECTRICAL ENGINEERING 

Unit-I 

'D.C. Circuit and Network Theorems: 

Circuit Concepts: Concept of Network , Active & passive elements , voltage and current sources , concept of linearity and linear network , unilateral and bilateral elements , R , L and C as linear elements, transformation. 

Kirchhoff's Laws: loop and nodal method of analysis , star—delta transformation and vice versa 

Network Theorems: Superposition, Thevenin's , Norton's and Maximum Power Transfer theorems (Simple Numerical problems) 

Unit-2 

Study State Analysis or Single Phase AC Circuits: 

AC Fundamental. average and effective values, form and peak factor, concept of phasors , phasor representation of sinusoidal voltage and current. Analysis of series, parallel and series- parallel RLC Circuits , resonance. apparent, active and reactive powers, power factor , causes and problems or low power factor, concept of power factor improvement (simple numerical problems) 

 Unit-3 

Three phase AC Circuits: 

Three phase systems—its necessity and advantages, connections, balanced supply and load, line and voltage/current relationship , three-phase power and its measurement with one and two wattmeter methods (simple numerical problems).

Measurement Instruments: Types of instruments. construction and working principles of PMMC and moving iron  type voltmeters & ammeters , single phase dynamometer type wattmeter , induction type energy meter

Unit-IV

 Magnetic Circuit: 

Magnetic circuit concepts. analogy between electric & magnetic circuits, magnetic leakage, B-H curve, hysteresis and eddy current losses, mutual coupling. 

Single Phase Transformer: Principles of operation, construction, e.m.f. equation, equivalent circuit, power losses , efficiency (simple numerical problems). introduction to auto transform

Unit-V 

DC Machines: 

Principles of electro-mechanical energy conversion. Types, e;m.f. equation of generator , motor principle, back emf, torque equation or motor. Need of starter 

Three Phase Induction Motor: Types, Principle of operation , slip torque characteristics, applications (numerical problems related to slip only).

Single Phase Induction Motor: Principle Of operation and introduction to methods of starting, applications.

 

Three Phase Synchronous Machines: Principle of operation of alternator and synchronous motor and their applications (Only theoretical concept)

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B.L. THERAJA And A.K. THERAJA 

S. CHAND & COMPANY LTD. 

D.P. Kotahri And I.J. Nagrath 

Tata McGraw-Hill & COMPANY LTD.