The three-phase alternating current system is universally used in production, transmission and utilization of electrical energy. Knowledge of the concepts and principles underlying its operation, as well as the methods of measuring characteristic quantities, is essential baggage for the technician skilled in electrical and electronic technologies.

The present volume, divided into three chapters: the three-phase system, three-phase power, and the measurement of three-phase power, enables the acquisition and deepening of the knowledge necessary to successfully tackle the courses of Electrical and Electronic Engineering of Technical Institutes, technological sector and is preparatory to university courses.

The text is accompanied by many illustrations that are particularly well edited for their didactic aspects. Each concept developed is followed by one or more explanatory examples and often concise summaries.

To test the knowledge acquired at the end of the chapters there will be significant problems to solve.

SANDRO RONCA

After studying Physics at the University of Padua, he dedicated himself to teaching Electrical and Electronic Technologies and Computer Science at Technical and Technological Institutes, paying attention to the didactic aspects of the subject. He has studied computer networks in depth and designed, at the request of industrial associations, courses for systems engineers and IT security workers.