The course of Electrical Engineering involves knowledge in the areas of electrical circuits, machinery, magnetic fields, conductive materials, magnetic materials, insulating materials, and electrodynamics, and it is an important basic course for the specialty of electrical engineering and its automation. It is characterized by extensive content, numerous formulas, strong theoretical foundation and close ties to engineering practice. In order to continuously improve the teaching quality of the course, the teaching group of the “Electrical Engineering” course at Changsha University of Science and Technology has employed analogy teaching methods and proposed the “Balance of source and load, balance of drive and balance of input and output” as the three-balance method. This method has proven to be practical and effective for students to study and master the basic balance equations in electromechanics.