Introduction to Electrical and Electronics Courses 1. Course Overview At present, electrical and electronic technology is widely used and developing very rapidly. It is increasingly penetrating into other subject areas to promote their development and plays an important role in my country's current economic construction. This course is a technical basic course for non-electrical majors. Its main task is to lay a solid theoretical foundation for electrical engineering technology for students to learn professional knowledge and engage in engineering and technical work, and to enable them to receive necessary basic skills training. Some of the material in this course is covered in physics courses. But while physics emphasizes concepts, this course emphasizes engineering applications.
Total of 72 lessons2 days and 8 hours and 17 minutes and 13 seconds
"Electrical Engineering" at North China Electric Power University is a major professional basic course in the electrical engineering discipline. It is highly theoretical and closely related to engineering practice. This course takes four typical motors: transformers, synchronous motors, asynchronous motors, and DC motors as the learning objects. The content covers: the basic structure, working principle and operating characteristics of the motor; the basic electromagnetic relations and basic analysis methods of the motor, including: electromotive force equation, magnetic motion Potential balance relationship, power and torque balance equations, equivalent circuits, phasor diagrams; properties of electromotive force and magnetomotive force of motors and their relationship with time and space; basic experimental methods of motors. Through the study of this course, you can master the basic theory and basic analysis methods of electric motors, laying a solid foundation for further studying professional courses and engaging in professional work.
Total of 92 lessons2 days and 19 hours and 17 minutes and 6 seconds
After studying this course, you are required to have a basic understanding of the basic laws of magnetic circuits, the characteristics of commonly used ferromagnetic materials and the calculation of alternating current and tributary magnetic circuits; and have a basic understanding of transformers and three types of motors (DC motors, induction motors and synchronous motors). You must have a certain understanding of the basic structure; you must have an in-depth understanding of the main magnetic field and leakage magnetic field in the transformer, the properties and spatio-temporal relationship of the air gap magnetic field in the three types of motors; you must have an in-depth understanding of the operating principles of the transformer and the three types of motors during normal steady-state operation. , analysis methods and operating performance must be firmly mastered, be able to correctly establish voltage equations and torque equations, clarify energy conversion relationships, have a clear physical concept of steady-state parameters, and be able to skillfully use equivalent circuits and complex numbers to calculate symmetry Performance and operating data during steady-state operation; master the basic experimental methods and operating skills of the motor, such as the starting of the motor, the voltage build-up of the generator, the measurement methods of the main operating characteristics and steady-state parameters, etc., and be able to analyze the experimental results. analyze
Total of 65 lessons2 days and 1 hours and 26 minutes and 30 seconds
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