Despite the fact that digital protection, measurement and control systems are already used on a large scale in electrical power systems, many of the criteria used in electrical systems are still the same as those of electromechanical equipment, not allowing the full use of all the benefits that this type of equipment can bring to the electrical system as a whole.
The work is conducted in order to present the benefits of digital protection systems, as well as the new paradigms brought by them in the design, installations, operation and maintenance of electrical power systems. The focus of the work will be the protection of industrial electrical systems, and many of the items discussed in this article can be extended to electrical power systems in general.