D.c. Machines And Transformers
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D.c. Machines And Transformers Syllabus — Unit-wise Content
The official GTU curriculum for D.c. Machines And Transformers (subject code 3332401) as prescribed for AI & DS · Semester 3 divides the course into 5 units, covering 31 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 (3332401)Unit 1 DC Generator
- 1.1. Various parts of DC machine like yoke, winding, commutators, brushes,lap and wave winding,etc.
- 1.2. Basic principle of DC Generator, Flemings right hand rule.
- 1.3. Separately excited, self excited-particularly shunt, series and compound wound type generator.
- 1.4. E.M.F.equation of generator and various losses in generator.
- 1.5. No-load, internal and external characteristics
- 1.6. Armature reaction and its effects.
- 1.8. Parallel operation of DC generator.
- 1.9. Applications of DC generator.
Unit 2 DC Motor
- 2.1. Basic principle of DC motor, Flemings left hand rule.
- 2.2. Back emf and voltage equation, condition for maximum power, torque relation, shaft torque, relation between torque and speed of motor, losses and efficiency.
- 2.3. Different characteristics of DC series, shunt and compound motor.
- 2.4. General applications of shunt, series, and compound motor.
Unit 3 Starting, braking and speed control of DC motor.
- 3.1. Need of starter in DC motor, three-point, four point starter, supporting conventional resistance and static power electronics converter control.
- 3.2. Braking: dynamic, plugging, regenerative; shunt, series and compound motor.
- 3.3. Speed control method: armature, field
- 3.4. Speed control using power electronics static converter along with DC motor supporting static power electronics converter.
Unit 4 Single phase Transformer
- 4.1. Construction: core type and shell type transformer
- 4.2. Classification: according to frequency groups, DC Machines & Transformer Course code: 3332401 GTU/NITTTR/Bhopal/12-13 Gujarat State 3 Unit Major Learning Outcomes (‘Course Outcomes’ in Cognitive Domain according to NBA terminology) Topics and Sub-topics mode of operations, purpose of usage and according to cooling systems.
- 4.3. Difference between ideal and practical transformer.
- 4.4. Diagram of exact and approximate equivalent circuit of single phase transformer.
- 4.5. Open-circuit and short circuit test for determining equivalent circuit parameters of single phase transformer.
- 4.6. Phasor diagram of transformer on no load, resistive, lagging pf and leading pf.
- 4.7. Iron and copper loss transformer, calculation of losses, voltage regulation of transformer, condition for zero and maximum regulation, efficiency and condition for maximum efficiency, all-day-efficiency( distribution transformer).
- 4.8. Essential and desirable conditions, polarity test and parallel operation on single phase transformers.
Unit 5 Three phase transformer
- 5.1. Star-star, star-delta, delta-star, delta-delta connection, Scott connection, input-output voltage and current relations for these connections.
- 5.2. Potential and current transformers.
- 5.3. Pulse transformer, and its input-output waveform.
- 5.4. Off-load and on load tap changing
- 5.5. Variable frequency transformer including mid- band, high and low frequency region.
- 5.6. Audio frequency transformer at different frequency response.
- 5.7. Applications of various transformer in the field of power electronics. DC Machines & Transformer Course code: 3332401 GTU/NITTTR/Bhopal/12-13 Gujarat State 4
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