Electrical Circuits And Machines

Front Cover
Technical Publications, Jan 1, 2008 - 799 pages
0 Reviews
TransformersSingle Phase Transformers : Ideal & Practical Transformers, Equivalent circuit, Determination of transformer parameters (O.C. and S.C. tests), Efficiency and regulation of transformer. Design of single phase transformer for instrument power supply. Coupled circuit. Special Transformer : (Theoretical treatment only) Auto transformer, Current transformer, Induction heating transformers, Isolation transformers, Ferrite core transformer, Welding transformer, Phase shift transformer, Three phase transformer, Star/Delta, Delta/Star, Application of each Type.D.C. MachinesD.C. Generator : Construction, Types, Role of commutator, Induced emf equation, Characteristics and applications. D.C. Motors : Operation, Types, Losses, Basic equations of DC motors, Torque-speed characteristics, Speed control methods, Speed regulation, Starters (manual, electronic), Braking and applications.Active, Reactive and Apparent PowerInstantaneous power, Active power, Reactive power, Power factor, Distinction between active and reactive power, Combined active and reactive loads (apparent power). Measurement and calculation of active, Reactive power and Power factor in 3 balanced circuit using two wattmeter and one wattmeter. Measurement of 1 and 3 power using CT and PT. Electronic meters for energy measurement. Introduction to energy audit.Three Phase Induction MotorsConstruction, Operation, Types, Equivalent circuit, Torque-slip characteristics, Slip and torque equations, Maximum torque, Starting torque, Full load torque, Condition for maximum torque, Power flow diagram, Starters for IM (manual and soft starters). Introduction to speed control, Braking, Protection circuits (e.g. single phase preventer, ELCB, MCB) and Applications.Synchronous MachinesSynchronous Generators : Construction, Types (rotating field & rotating armature), Synchronous speed and emf equation. Coil span factor and distribution factor (derivation not expected). Alternator on no load and on load, Armature reaction in 3-phase alternators, Regulation of alternator by synchronous impedance method. Synchronous Motors : Construction, Operation, Effect of variation of load, Hunting, V curves, Starting methods, Synchronous condenser, Applications.Special Purpose MachinesPrinciple of operation, Working, Types and applications of single phase IM, Universal motors, Reluctance motor, Stepper motors, AC & DC servomotors.
 

What people are saying - Write a review

We haven't found any reviews in the usual places.

Contents

Table of Contents
1
Examples with Solutions
65
Review Questions Sectionwise
84
Chapter 2 Special Transformers 90 to
136
C Generators
137
Examples with Solutions
170
Chapter 3 D C Generators 137 to
180
Chapter 4 D C Motors 181 to
270
Examples with Solutions
522
Review Questions Sectionwise
541
Alternators 478 to
545
Examples with Solutions
576
Review Questions Sectionwise
587
Chapter 8 Synchronous Motors 546 to
591
Chapter 9 Special Purpose Motors 592 to
608
Chapter10 Stepper Motors
609

iapter5 Active Reactive and Apparent Power
271
Chapter 5 Active Reactive and Apparent Power 271 to
355
Chapter6 Three Phase Induction Motors
356
Review Questions Sectionwise
470
Chapter 6 Three Phase Induction Motors 356 to
477
5Stator
481
Chapter 10 Stepper Motors 609 to
628
apterlt Servomotors
629
Chapter 1 1 Servomotors 629 to
642
to
654
Chapterwise University Questions with Answers P1toP120
P-120
Copyright

Other editions - View all

Common terms and phrases

Bibliographic information