# Electrical Machines III

 Course Code : RT31024 Author : uLektz University : JNTU Kakinada Regulation : 2013 Categories : Electrical & Electronics Format : ePUB3 (DRM Protected) Type : eBook

FREE

Description :Electrical Machines III of RT31024 covers the latest syllabus prescribed by JNTU Kakinada for regulation 2013. Author: uLektz, Published by uLektz Learning Solutions Private Limited.

Note : No printed book. Only ebook. Access eBook using uLektz apps for Android, iOS and Windows Desktop PC.

##### Topics
###### UNIT – I SINGLE PHASE MOTORS

1.1 Single phase induction motors – Constructional features and the problem of starting

1.2 Double revolving field theory

1.3 AC Series motor–Compensation.

###### UNIT–II SYNCHRONOUS GENERATOR CONSTRUCTION AND OPERATION

2.1 Constructional features of non–salient and salient pole type

2.2 Armature windings – Distributed and concentrated windings

2.3 Distribution– Pitch and winding factors –E.M.F equation–Improvements of waveform and armature reaction– Numerical problems.

###### UNIT – III VOLTAGE REGULATION OF SYNCHRONOUS GENERATOR

3.1 Voltage regulation by synchronous impedance method

3.2 MMF method and Potier triangle method

3.3 Phasor diagrams - Two reaction analysis of salient pole machines and phasor diagram– Numerical problems.

###### UNIT – IV PARALLEL OPERATION OF SYNCHRONOUS GENERATORS

4.1 Parallel operation with infinite bus and other alternators

4.2 Synchronizing power - Load sharing

4.3 Transfer of real and reactive power - Numerical problems

###### UNIT–V SYNCHRONOUS MOTOR – OPERATION

5.1 Synchronous Motor principle and theory of operation - Phasor diagram – Starting torque

5.2 Variation of current and power factor with excitation

5.3 Synchronous condenser – Mathematical analysis for power developed – Numerical problems.

###### UNIT – VI SYNCHRONOUS MOTOR PERFORMANCE AND STARTING

6.1 Excitation and power circles

6.2 Hunting and its suppression

6.3 Methods of starting

6.4 Synchronous induction motor