D. C. Machines And Transformer
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D. C. Machines And Transformer Syllabus — Unit-wise Content
The official GTU curriculum for D. C. Machines And Transformer (subject code 4330901) as prescribed for ELECTRICAL · Semester 3 divides the course into 4 units, covering 39 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (4330901)Unit 1 D.C. Generator
- 1.1. Energy conversion principle.
- 1.2. Construction of D.C. machine.
- 1.3. Working principle of D.C. generator (single loop generator, action of commutator)
- 1.4. EMF equation of D.C. generator.
- 1.5. Armature winding terminology and its types.
- 1.6. Dummy coils, Equalizer rings.
- 1.7. Types of D.C. generators.
- 1.8. Characteristics of various types of D.C. generators.
- 1.9. Armature reaction and Commutation.
- 1.10. Power stage and Losses in D.C. machines
- 1.11. Voltage regulation, Efficiency and condition for maximum efficiency.
- 1.12. Applications of various types of D.C. generator.
Unit 2 D.C. Motors
- 2.1. Working principle of D.C. Motor.
- 2.2. Significance of the Back EMF.
- 2.3. Torque in D.C. Motor (armature torque, shaft torque, BHP) and Numerical.
- 2.4. D.C. motor starter (necessity, two-point, three point and four- point starter)
- 2.5. Types of D.C. motors and its characteristics and Numerical.
- 2.6. Speed control of D.C. motor
- 2.7. Electronic speed control, reversal of rotation. D.C. Machine and Transformer Course Code: 4330901 Topics and Sub-topics efficiency
- 2.8. Power stages, Losses, and Efficiency of D.C. Motor and Numerical.
- 2.9. Testing of D.C. Machines. (Brake test, Swinburne’s test, Hopkinson test, field test)
- 2.10. Applications of D.C. Motors.
- 2.11. Specifications of D.C. Machines.
- 2.12. Brushless D.C. Motor (construction and working)
Unit 3 Single Phase Transformer
- 3.1. Construction and working principle of Transformer.
- 3.2. Material used for core, winding and insulations)
- 3.3. EMF equation and transformation ratio and Numerical.
- 3.4. No load and on load phasor diagram.
- 3.5. Equivalent circuit of transformer (equivalent resistance and reactance) and Numerical.
- 3.6. Losses of transformer, separation of core loss components and Numerical.
- 3.7. Efficiency of single-phase transformer and condition for maximum efficiency and Numerical.
- 3.8. Voltage regulation, application of transformer.
- 3.9. Auto transformer (construction and working) 3.10Saving of copper in auto transformer.
Unit 4 Testing of single-phase transformer
- 4.1. Direct load test
- 4.2. OC and SC test
- 4.3. Back-to-Back test
- 4.4. Need of parallel operation
- 4.5. Conditions of parallel operation in single phase transformer.
- 4.6. Parallel operation and load sharing of single-phase transformer D.C. Machine and Transformer Course Code: 4330901 Topics and Sub-topics
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