9 Apparatus and instruments for measuring, analyzing, recording, controlling and regulating physical quantities, chemical properties, and industrial processes namely, flowmeters, scanners, sensors, actuators, automatic valves, transmitters for signals, temperature and/or pressure, positioners, electric converters, recorders, gas and liquid analyzers; water, gas, electricity and energy meters; computers, microprocessors; computer operating programs; electrical and computer cables, conductors, wires; electrical equipment, namely transformers; switchgear, circuit breakers, contactors, plugs, sockets, surge arrestors; electrical substation automation equipment comprised of controllers for substation environment and protection performance, namely, controllers for current protection, earth fault protection, voltage protection, frequency protection, thermal/energy protection, line/cable distance protection, line/cable differential protection, transfer differential protection, busbar differential protection, generator protection, motor protection, capacitor bank protection, railway supply protection, software for use in an electrical substation, namely, software for setting protection parameters and providing an interface to an operator, software for analyzing faults, software for retrieving a disturbance record, software for allowing remote retrieval of disturbance data, software for monitoring and controlling a substation electrical network, software for remotely controlling a substation by supervisory control and data acquisition (SCADA), software for providing an interface to an operator, software for configuring and tuning a substation control application, software for analyzing data, namely software for analyzing faults data, fault location data, software for managing maintenance of a substation; and power system protective relays; reactive power compensators; electric capacitors, electric reactors, electric converters and inverters; and semiconductor elements