Hello Electrical Engineering students,
Electrical Machines-1 is a core subject in the B.Tech curriculum of AKTU (Dr. A.P.J. Abdul Kalam Technical University). This subject provides students with an in-depth understanding of the fundamentals of electrical machines. It covers the different types of electrical machines, their principles of operation, construction, and performance characteristics. Students also learn about the various applications of electrical machines in different industries and their impact on the environment. Additionally, the course provides an overview of transformer theory and the principles of electromechanical energy conversion. Students gain practical knowledge through laboratory sessions where they can perform experiments related to electrical machines. The subject is crucial for electrical engineering students as it provides a strong foundation for their future studies and professional careers.
I am sharing Electrical Machines-1 question bank with answers and solutions in Q&A format for Electrical Engineering /BTech second year. This is available as a PDF file for free download below.
List of topics covered in Electrical Machines-1 question bank with solutions (Q&A) for Electrical Engineering /BTech second year:
Electrical Machines-1 is a core subject in the B.Tech curriculum of AKTU (Dr. A.P.J. Abdul Kalam Technical University). This subject provides students with an in-depth understanding of the fundamentals of electrical machines. It covers the different types of electrical machines, their principles of operation, construction, and performance characteristics. Students also learn about the various applications of electrical machines in different industries and their impact on the environment. Additionally, the course provides an overview of transformer theory and the principles of electromechanical energy conversion. Students gain practical knowledge through laboratory sessions where they can perform experiments related to electrical machines. The subject is crucial for electrical engineering students as it provides a strong foundation for their future studies and professional careers.
I am sharing Electrical Machines-1 question bank with answers and solutions in Q&A format for Electrical Engineering /BTech second year. This is available as a PDF file for free download below.
List of topics covered in Electrical Machines-1 question bank with solutions (Q&A) for Electrical Engineering /BTech second year:
- UNIT-I: Magnetic circuits and magnetic materials: Magnetic circuits, magnetic fields, magnetic flux, reluctance, magnetomotive force, B-H curve, hysteresis and eddy current losses. Soft magnetic materials, hard magnetic materials, and their properties.
- UNIT-II: Transformers: Construction, working principle, ideal transformer, equivalent circuit, phasor diagram, open circuit and short circuit tests, regulation, efficiency and losses.
- UNIT-III: DC machines: Construction, types, emf equation, torque equation, methods of excitation, characteristics of DC generator and DC motor, speed control of DC motors.
- UNIT-IV: Three-phase induction motors: Construction, types, principle of operation, slip, rotor frequency, equivalent circuit, torque-slip characteristics, starting, speed control of induction motors.
- UNIT-V: Single-phase induction motors: Principle of operation, double field revolving theory, equivalent circuit, starting methods, split-phase and capacitor start motors.
- UNIT-VI: Synchronous machines: Construction, principle of operation, emf equation, phasor diagram, voltage regulation, parallel operation of synchronous generators, synchronous motor starting and synchronous condenser.
- UNIT-VII: Special machines: Introduction to stepper motors, servo motors, and brushless DC motors.