Syllabus

# JNTUH B.Tech 2016-2017 (R16) Detailed Syllabus Electrical Machines – II

Electrical Machines – II Detailed Syllabus for B.Tech second year second sem is covered here. This gives the details about credits, number of hours and other details along with reference books for the course.

The detailed syllabus for Electrical Machines – II B.Tech 2016-2017 (R16)  second year second sem is as follows.

B.Tech. II Year II Sem.    L/T/P/C
Course Code: EE403ES  0/0/3/2
Prerequisite: Electrical Machines-I

Course Objectives:

• To deal with the detailed analysis of polyphase induction motors & Synchronous generators and motors
• To understand operation, construction and types of single phase motors and their applications in house hold appliances and control systems.
• To introduce the concept of parallel operation of synchronous generators.
• To introduce the concept of regulation and its calculations.

Course Outcomes: After this course, the student

• Identify different parts of transformers and induction motors and specify their functions
• Understand the operation of transformers and induction motors
• Carry out different testing methods and assess the performance of transformers and induction motors
• Start and control the induction motor

UNIT – I Polyphase Induction Motors: Constructional details of cage and wound rotor machines production of a rotating magnetic field – principle of operation – rotor EMF and rotor
frequency – rotor reactance, rotor current and Power factor at standstill and during operation.

UNIT – II Characteristics of Induction Motors: Rotor power input, rotor copper loss and mechanical power developed and their inter relation-torque equation-deduction from torque equation –
expressions for maximum torque and starting torque – torque slip characteristic – equivalent circuit – phasor diagram – crawling and cogging -.No-load Test and Blocked rotor test – Predetermination of performance-Methods of starting and starting current and Torque calculations. Speed Control Methods: Change of voltage, change of frequency, voltage/frequency, injection of an EMF into rotor circuit (qualitative treatment only)-induction generator principle of operation.

UNIT – II Construction, Principle of operation, Characteristics & Regulation of Synchronous Generator: Constructional Features of round rotor and salient pole machines – Armature windings – Integral slot and fractional slot windings; Distributed and concentrated windings –
distribution, pitch and winding factors – E.M.F Equation. Harmonics in generated e.m.f. – suppression of harmonics – armature reaction – leakage reactance – synchronous reactance and impedance – experimental determination – phasor diagram – load characteristics. Regulation by synchronous impedance method, M.M.F. method, Z.P.F. method and A.S.A. methods – salient pole alternators – two reaction analysis – experimental determination of Xd and Xq (Slip test) Phasor diagrams – Regulation of salient pole alternators.

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TEXT BOOKS:

• “I. J. Nagrath & D. P. Kothari”, “Electric Machines”, Tata Mc Graw Hill, 7th Edition, 2009
• “PS Bhimbra”, “Electrical machines”, Khanna Publishers, 2014

REFERENCE BOOKS:

• “M. G. Say”, “Performance and Design of AC Machines”, CBS Publishers, 3rd Edition, 2002.
• “A.E. Fitzgerald, C. Kingsley and S. Umans”, “Electric machinery”, Mc Graw Hill Companies, 7th edition, 2013
• “Langsdorf”, “Theory of Alternating Current Machinery”, Tata McGraw-Hill Companies, 2nd edition, 1984.
• “M.V Deshpande”, “Electrical Machines”, Wheeler Publishing, 2011

For all other B.Tech 2nd Year 2nd Sem syllabus go to JNTUH B.Tech Electrical and Electronics Engineering 2nd Year 2nd Sem Course Structure for (R16) Batch.

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