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Below we have listed chapter-wise topics and the download links of PDFs,
| Chapters’ Name | Topics | Download Links |
|---|---|---|
| Unit 1: General Introduction to Rotation Machines | 1.1. Mechanism of Electro-Mechanical energy conversion for generator & motor mode | Download Now |
| Unit 2: D.C. Generator | 2.1 Working principles, Construction & Types of DC generator. 2.2 Armature winding types – Concept of Lap & Wave winding. 2.3 E.m.f equation 2.4 Generator characteristics: Open-circuit characteristics; External Characteristics (Concept only); Methods of building up of e.m.f, Significance of Critical resistance and Critical speed (Numerical). 2.5 Concept of flux distribution in DC machine. 2.6 Armature reaction in DC machine and remedial measures. (Concept only). 2.7 Commutation method, Concept of reactance voltage. 2.8 Applications of different types of D.C. generators. 2.9 Parallel operation of DC generator. | Download Now |
| Unit 3: D.C. Motor | 3.1 Working principles, Back e.m.f., Speed and Torque equation. (Numerical) 3.2 Characteristics of Series, Shunt & Compound motors. 3.3 Methods of speed control of DC motors. (Numerical) 3.4 Starting methods of DC motor – 3-point & 4-point starter. 3.5 Losses and Efficiency (Numerical). 3.6 Braking methods of DC motor – Regenerative braking, Counter current braking, Dynamic braking. 3.7 Applications of different types of DC motor. 3.8 Brushless DC motors: Construction; working principle and applications. | Download Now |
| Unit 4: Single Phase Transformer | 4.1 Types of transformers: Shell type and Core type; construction; different parts of transformer and their function. Material used for different parts: CRGO, CRNGO, HRGO, amorphous core. 4.2 Principle of operation. 4.3 E.m.f. equation, Transformation ratio, rating of transformers. (Numerical) 4.4 Concept of ideal and practical transformer. 4.5 Performance under no-load condition with phasor diagram. (Numerical) 4.6 Performance under load condition with phasor diagram. (Numerical) 4.7 Equivalent circuit. (Numerical) 4.8 Per unit representation of impedance (Numerical). 4.9 Voltage Regulation at upf, lagging pf & leading pf. (Numerical) 4.10 Polarity test of transformer. 4.11 Open Circuit and Short Circuit tests – Estimation of losses & Equivalent circuit parameters. (Numerical) 4.12. Losses, Efficiency, Maximum efficiency, All-day efficiency. (Numerical) 4.13 Parallel operation of single phase transformers (Numerical). 4.14 Tap-changing methods, Tap changers – Off load & On-load type. 4.15 Single-phase Auto transformer: Construction, Working principles and application. | Available Soon |
| Unit 5: Three Phase Transformer | 5.1 Types of three phase transformer: Bank of three single phase transformers, single unit three phase transformers. 5.2 Construction of 3-phase transformer –different types of Winding. 5.3 Connections of 3-phase transformer – As per IS:2026 (part-IV)-1977 (Classification & necessity). 5.4 Practical application of zig-zag connection in earthing transformer. 5.5 Concept of Tertiary winding and its utility. 5.6 Different cooling methods of transformer. 5.7 Three-phase Auto transformer – Construction; working principle and application. 5.8 Scott-connected transformer – working principle, connection Diagram, practical application. 5.9 Open delta connection – working principle, connection diagram and practical application. 5.10 Criteria for selection of Power transformer and distribution transformer. Amorphous Core type distribution transformer; Specification of three phase distribution transformer as per IS: 1180(Part I)-1989 5.11 Need of parallel operation of three phase transformer, Conditions for parallel operation. 5.12 Phasing out test on Three-phase transformer. | Download Now |
| Unit 6: Special Purpose Transformers | 6.1 Isolation transformer: Construction, working principle and applications. 6.2 Single-phase welding transformer: Construction, working principle and applications. 6.3 Pulse transformer: Construction, working principle and applications. 6.4 ‘K’ factor of transformers: overheating due to non-linear loads and harmonics. | Download Now |
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