JNTUK R19 B.Tech EEE 2-2 Electrical Machines-II Material/ Notes PDF Download: The JNTUK R19 B.Tech Electrical Machines-II Material is a resource that helps students learn about different electrical machines. It mainly focuses on 3-phase induction motors, induction generators, single-phase induction motors, synchronous generators, and synchronous motors. It explains how these machines work and how well they perform. For example, it talks about how induction motors produce power and how torque and slip are used to measure their performance. It also covers topics like how synchronous generators generate electricity and how voltage regulation works.
JNTUK R19 B.Tech 2-2 Electrical Machines-II – Units
| No. Of Units | Name of the Unit |
| Unit – 1 | 3 – Phase Induction Motors |
| Unit – 2 | Characteristics, starting, and testing methods of induction motors |
| Unit – 3 | Single Phase Motors |
| Unit – 4 | Construction, operation, and voltage regulation of synchronous generator |
| Unit – 5 | Synchronous motor – operation, starting and performance |
Unit 1 Syllabus PDF Download | JNTUK R19 B.Tech 2-2 Electrical Machines-II Material
3-phase induction motors Construction details of cage and wound rotor machines – production of rotating magnetic field – the principle of operation – rotor emf and rotor frequency – rotor current and power factor at a standstill and during running conditions – rotor power input, rotor copper loss and mechanical power developed and their interrelationship – equivalent circuit – phasor diagram.
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| JNTUK R19 B.Tech Electrical Machines-II Material – PDF Download | |
| To Download JNTUK R19 B.Tech EEE Electrical Machines-II Material Unit-1 PDF | Download PDF |
Unit 2 Syllabus PDF Download | JNTUK R19 B.Tech 2-2 Electrical Machines-II Material
Characteristics, starting and testing methods of induction motors Torque equation – expressions for maximum torque and starting torque – torque slip characteristic –double cage and deep bar rotors – crawling and cogging – speed control of induction motor with V/f control method –no load and blocked rotor tests – circle diagram for predetermination of performance – methods of starting – starting current and torque calculations – induction generator operation (Qualitative treatment only).
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Unit 3 Syllabus PDF Download | JNTUK R19 B.Tech 2-2 Electrical Machines-II Material
Single Phase Motors Single phase induction motors – constructional features and equivalent circuit – a problem of starting– double-revolving field theory Starting methods, AC series motor.
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Unit 4 Syllabus PDF Download | JNTUK R19 B.Tech 2-2 Electrical Machines-II Material
Construction, operation, and voltage regulation of synchronous generator Constructional features of non-salient and salient pole type armature windings – distributed and concentrated windings – distribution, pitch, and winding factors – E.M.F equation – improvements of waveform and armature reaction – voltage regulation by synchronous impedance method –MMF method and Potier triangle method – phasor diagrams – two reaction analysis of salient pole machines and phasor diagram.
Parallel operation with infinite bus and other alternators – synchronizing power – load sharing – control of real and reactive power – numerical problems.
| JNTUK R19 B.Tech Electrical Machines-II Material – PDF Download | |
| To Download JNTUK R19 B.Tech EEE Electrical Machines-II Material Unit-4 PDF | Download PDF |
Unit 5 Syllabus PDF Download | JNTUK R19 B.Tech 2-2 Electrical Machines-II Material
Synchronous motor – operation, starting, and performance Synchronous motor principle and theory of operation – phasor diagram – starting torque – a variation of current and power factor with excitation –synchronous condenser – mathematical analysis for power developed– hunting and its suppression – methods of starting – applications.
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JNTUK R19 B.Tech 2-2 Electrical Machines-II Notes – Outcomes
- Three-phase induction motor: Explain its operation and performance, focusing on torque production and efficiency.
- Torque-speed relation: Analyze the relationship and performance of induction motors and generators, considering load variations.
- Design procedures: Outline designing steps for transformers and induction motors, emphasizing considerations such as voltage regulation and losses.
- Single-phase induction motors: Discuss starting methods without plagiarism, including capacitor-start and split-phase techniques.
- Synchronous motors: Address starting methods, power factor correction, and avoidance of hunting phenomenon without directly copying solutions.