The present Dissertation aims to provide more dynamism to the teaching and learning process in power system engineering through a set of interactive personal computer algorithms. The student may carry out a continuous process of experimenting, questioning and revision of concepts. In order to better develop the leaining process, a frindly environment is created where the user has his actions supported by explanatory and error monitoring messages. This results in a reduction of the time spent in each study section and, consequently, it estimulates the student to perform a greater number of simulations. Four computer programs have been developed. There is one written in PASCAL language, responsible for the following studies: load flow, slort-circuit and transient stability. These programs use special sparsity techniques and programming. Three power systems have been choosen to be immediately available to the user. One of them is used in the text during the explanation process of the conversational structure of the power system studies.