# JNTUH R18 B.Tech Fluid Mechanics Syllabus 2022

You will be able to find information about Electrical Machines – II along with its Course Objectives and Course outcomes and also a list of textbook and reference books in this blog.You will get to learn a lot of new stuff and resolve a lot of questions you may have regarding Electrical Machines – II after reading this blog. Electrical Machines – II has 5 units altogether and you will be able to find notes for every unit on the CynoHub app. Electrical Machines – II can be learnt easily as long as you have a well planned study schedule and practice all the previous question papers, which are also available on the CynoHub app.

All of the Topic and subtopics related to Electrical Machines – II are mentioned below in detail. If you are having a hard time understanding Electrical Machines – II or any other Engineering Subject of any semester or year then please watch the video lectures on the official CynoHub app as it has detailed explanations of each and every topic making your engineering experience easy and fun.

## Electrical Machines – II Unit 1

Poly-Phase Induction Machines: 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.

## Electrical Machines – II Unit 2

Characteristics of Induction Machines: 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.

## Electrical Machines – II Unit 3

Synchronous Machines: 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.

## Electrical Machines – II Unit 4

Parallel Operation of Synchronous Machines: Synchronizing alternators with infinite bus bars – synchronizing power torque – parallel operation and load sharing – Effect of change of excitation and mechanical power input. Analysis of short circuit current wave form – determination of sub-transient, transient and steady state reactance’s.

Synchronous Motors: Theory of operation – phasor diagram – Variation of current and power factor with excitation – synchronous condenser – Mathematical analysis for power developed .- hunting and its suppression – Methods of starting – synchronous induction motor.

## Electrical Machines – II Unit 5

Single Phase & Special Machines: Single phase induction motor – Constructional features-Double revolving field theory – split-phase motors – shaded pole motor.

## Electrical Machines – II course objectives:

• Introduces the elementaryElectrical Machines – II Lab- 1 for computer science and engineering.
• Topics include formal logic notation, methods of proof, induction, sets, relations, graph theory,
• permutations and combinations, counting principles; recurrence relations and generating functions.

## Electrical Machines – II course outcomes:

• Solving ordinary differential equations using Laplace transforms techniques.
• Various methods to the find roots of an equation.
• Concept of finite differences and to estimate the value for the given data using interpolation.
• Evaluation of integrals using numerical techniques
• Solving ordinary differential equations using numerical techniques.
• Differentiation and integration of complex valued functions.
• Evaluation of integrals using Cauchy’s integral formula and Cauchy’s residue theorem.
• Expansion of complex functions using Taylor’s and Laurent’s series.

## Electrical Machines – II Reference Books:

1. B.S. Grewal, Higher Engineering Mathematics, Khanna Publishers, 36th Edition, 2010.
2. S.S. Sastry, Introductory methods of numerical analysis, PHI, 4th Edition, 2005.
3.   J. W. Brown and R. V. Churchill, Complex Variables and Applications, 7th Ed., Mc-Graw Hill, 2004.
4. M. K. Jain, SRK Iyengar, R.K. Jain, Numerical methods for Scientific and Engineering Computations, New Age International publishers.
5. Erwin kreyszig, Advanced Engineering Mathematics, 9th Edition, John Wiley & Sons,2006.

## Scoring Marks in Electrical Machines – II

Information about JNTUH B.tech R20 Electrical Machines – II was provided in detail in this article. To know more about the syllabus of other Engineering Subjects of JNTUH check out the official CynoHub application. Click below to download the CynoHub application.

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