Electrical Machines - Ii

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Technical Publications, Jan 1, 2008 - 646 pages
2 Reviews
Synchronous Generator Constructional details - Types of rotors - emf equation - Synchronous reactance - Armature reaction - Voltage regulation - e.m.f., m.m.f., z.p.f. and A.S.A. methods - Synchronizing and parallel operation - Synchronizing torque - Change of excitation and mechanical input - Two reaction theory - Determination of direct and quadrature axis synchronous reactance using slip test - Operating characteristics - Capability curves.Synchronous Motor Principle of operation - Torque equation - Operation on infinite bus bars - V-curves - Power input and power developed equations - Starting methods - Current loci for constant power input, Constant excitation and constant power developed.Three Phase Induction MotorConstructional details - Types of rotors - Principle of operation - Slip - Equivalent circuit - Slip-torque characteristics - Condition for maximum torque - Losses and efficiency - Load test - No load and blocked rotor tests - Circle diagram - Separation no load losses - Double cage rotors - Induction generator - Synchronous induction motor.Starting and Speed Control of Three Phase Induction MotorNeed for starting - Types of starters - Stator resistance and reactance, Rotor resistance, Autotransformer and star-delta starters - Speed control - Change of voltage, Torque, Number of poles and slip - Cascaded connection - Slip power recovery scheme.Single Phase Induction Motors and Special MachinesConstructional details of single phase induction motor - Double revolving field theory and operation - Equivalent circuit - No load and blocked rotor test - Performance analysis - Starting methods of single-phase induction motors - Special machine - Shaded pole induction motor, reluctance motor, repulsion motor, hysteresis motor, stepper motor and A.C. series motor.
 

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Contents

Chapter2 Methods for Calculating Regulation of Alternator 2 1 to 2
1-59
Chapter3 Synchronization and Parallel Operation of Alternators 3 1 to 3
3-2
Alternators 1 1 to 1
4-1
Chapter5 Three Phase Induction Motors 51 to 5 118
5-1
Chapter9 Special Machines 91 to 942
5-9
Chapter6 Circle Diagram 6 1 to 6
6-1
ing and Speed Control of Induction Motor
6-37
hapter8 Single Phase Induction Motors 81 to 8 30
8-1
AppendixA Electric Braking of an Induction Motor A 1 to A
A-1
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