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Electrical Machines - I
This learning track covers a comprehensive understanding of electrical machines, with a primary focus on transformers and Direct Current (DC) machines. It starts with the basics of transformers and magnetic circuits, moving on to the mechanics of transformers, their efficiency, regulation, and equivalent circuits. The track further delves into the types, functions, and mathematical expressions related to transformers. It also provides a detailed understanding of three-phase transformers, their construction, connections, and applications. The track then shifts its focus to DC machines, explaining their operations, characteristics, and the principles of armature winding. It also covers the effects of armature reaction, the role of compensating winding, and the distribution of armature current along the air gap of the machine. The track concludes with a comprehensive understanding of DC motors, their operations, control mechanisms, and braking. It also covers the functioning, characteristics, speed control, operation of universal motors, and testing methods of DC series motors.
These courses have been developed by Prof. Tapas Kumar Bhattacharya from IIT Kharagpur for NPTEL. They are now accessible through Ansys Innovation Space courtesy of the partnership between Ansys and NPTEL, under the CC BY-SA license. For more details, visit https://nptel.ac.in/courses/112106180.
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Innovation Course
Fundamentals of Transformers and Magnetic Circuits
This course covers the comprehensive understanding of electrical machines, with a primary focus on transformers and DC machines. For instance, it explains the structure and function of transformers, which consist of a magnetic core material and a...Read more
2
Innovation Course
Comprehensive Guide to Transformer Mechanics
This course covers the fundamental and advanced concepts of electrical machines, with a special focus on transformers. It starts with the basics of bolt per turn in transformers and moves on to the calculation of primary current in transformers with tw...Read more
3
Innovation Course
Understanding Transformers: Efficiency, Regulation, Circuits
This course covers the comprehensive understanding of electrical transformers, focusing on their efficiency, regulation, and equivalent circuits. It delves into the concept of transformer efficiency, explaining how it varies with the degre...Read more
4
Innovation Course
Comprehensive Guide to Electrical Transformers
This course covers the in-depth study of electrical transformers, their types, functions, and the mathematical expressions related to them. It starts with the basic concept of transformer regulation, explaining how it can be reduced by distributing t...Read more
5
Innovation Course
Comprehensive Guide to Three-Phase Transformers
This course covers the comprehensive understanding of three-phase transformers, their construction, connections, and applications. It starts with the Sumpner test, a method to determine the equivalent circuit parameters of transformers. The course t...Read more
6
Innovation Course
Understanding Transformers and Electrical Machines
This course covers the comprehensive study of electrical machines, with a special focus on transformers and phase conversion. It delves into the different connections of three-phase transformers, such as star, zig zag, and delta connections. The ...Read more
7
Innovation Course
Fundamentals of DC Machines and Operations
This course covers the fundamental concepts of Direct Current (DC) machines, their operations, and characteristics. It starts with the basics of how DC voltage is generated and the application of Faraday's law. The course then moves on to the complexitie...Read more
8
Innovation Course
Comprehensive Guide to DC Machines
This course covers the fundamental principles and intricate details of Direct Current (DC) machines. It provides an in-depth understanding of armature winding, voltage induction in armature conductors, and the operation of DC machines. For example, the course ex...Read more
9
Innovation Course
Comprehensive Understanding of Electrical Machines
This course covers the in-depth understanding of electrical machines, focusing on armature reaction, motor and generator modes, and the operations of Direct Current (DC) machines. It provides a detailed explanation of the effects of armature reac...Read more
10
Innovation Course
Mastering DC Motors: Operation, Control, Braking
This course covers the comprehensive understanding of DC motors, their operations, control mechanisms, and braking. It delves into the fundamental concepts of DC motor operations, focusing on the starting, speed control, and braking of the motor. For ...Read more
11
Innovation Course
Comprehensive Guide to DC Series Motors
This course covers the in-depth understanding of DC series motors, their functioning, characteristics, speed control, operation of universal motors, and testing methods. For instance, the course explains the structure of a DC series motor, highlighting the ...Read more
12
Innovation Course
Understanding DC Machines and Testing Techniques
This course covers the comprehensive understanding of Direct Current (DC) machines, their testing techniques, and efficiency calculations. It provides a deep dive into the connection of machines, the concept of the Hopkinson test, and the Swinburne...Read more
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