Protection, control, management and supervision systems for electrical installations, namely. SCADA (supervision control and data acquisition) systems, computers, computer peripherals, and software for graphical workstations, servers, LAN (local area network), communication front-end, remote terminal units, protection devices, graphical human machine interface associated software to monitor, control, protect, manage and supervise electrical installations, namely, software for DMS (distribution management systems), power flow calculation, network topology analysis, diagram coloring, outage management, network reconfiguration for electrical distribution networks, communication software interfaces, geographical interface system interface; ammeters, amplifiers, electrical distribution boxes, tape recorders, capacitors controllers, control panels for electric power, electric installations for the remote control of industrial operations, namely, switchgear electrical adaptation works, electric regulating apparatus, namely, voltage regulators, electrical transformers, electrical fault detectors, electric loss indicators in the nature of liquid crystal displays, light emitting diode displays, digital and serial information, indicators for electric power in the nature of liquid crystal displays, light emitting diode displays, digital and serial information, data processors, precision measuring apparatus, namely, power counters, energy counters, electrical measurement devices; radios, radiotelephony sets, telephones and telephone telecommunication transmitters; all for use in the fields of energy, power transmission and distribution and power conversion