EE 9304 Electrical Machines-II syllabus download

EE9304 ELECTRICAL MACHINES – II L T P C
3 1 0 4
AIM
To study the theory, operation and performance of AC machines.
OBJECTIVES
 To study the theory and performance characteristics of Induction machines.
 To study the theory and performance characteristics of Synchronous machines.
 To study theory of operation and performance characteristics of fractional
horse power motors.
UNIT I INDUCTION MACHINES: THEORY 12
Construction – types – principle of operation of motor – emf, torque and power flow
equations – torque and speed curves – double cage motor and equivalent circuit –
synchronous induction motor – induction generator.
UNIT II INDUCTION MACHINES: PERFORMANCE 12
Induction motor testing, equivalent circuit and circle diagram – losses and efficiency –
performance characteristics – harmonics, cogging and crawling – starting methods –
speed control methods – braking – temperature rise and insulation – energy efficient
motors.25
UNIT III SYNCHRONOUS MACHINES: THEORY 12
Construction – types – generator and motor action – theory of cylindrical rotor machines
– armature reaction and synchronous reactance – emf and power equation –
synchronization – synchronizing power and parallel operation – two reaction theory of
salient pole machines and determination of direct axis and quadrature axis reactance.
UNIT IV SYNCHRONOUS MACHINE: PERFORMANCE 12
Pre-determination of voltage regulation – synchronous machine on infinite bus bars – V
curves and inverted V-curves of motor and generator – steady state operating
characteristics – hunting – short-circuit transients – synchronous condenser action.
UNIT V FRACTIONAL HORSE POWER MOTORS 12
Single-phase induction motor – double revolving field theory – testing, equivalent circuit
and performance analysis – starting methods – universal motor.
L=45 T=15 TOTAL: 60 PERIODS
TEXT BOOKS:
1. Say M.G, "Performance and Design of Alternating Machines' CBS Publishers and
Distributors, New Delhi, First Indian Edition, Reprint 1998.
2. Nagarth I.J. and Kothari D.P., Electric Machines, Tata McGraw Hill, New Delhi,
Edition 2004.
REFERENCES:
1. Fitzgerald A.E., Charles Kingsley Jr., and Stephen D.Umans, "Electric Machinery,
"Tata McGraw Hill, New Delhi, Edition 2002.
2. Irving L.Kosow, "Electric Machinery and Transformers" Prentice Hall of India
Private Limited, New Delhi., Second Edition, Reprint 2007.
3. Stephan J.Chapman, "Electric Machinery Fundamentals', McGraw hill International
Edition, New Delhi, 2005.

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