ELECTRICAL DEVICES AND INSTRUMENTS FOR HIGH-VOLTAGE TECHNOLOGY FOR TRANSMISSION, TRANSFORMATION, STORAGE, CONTROL AND REGULATION OF ELECTRIC ENERGY, NAMELY, SWITCHGEARS, OFF-CIRCUIT AND ON-LOAD TAP-CHANGERS; ELECTRICAL DEVICES AND INSTRUMENTS FOR WEAK CURRENT FOR MEASUREMENT, COMPUTING, CONTROL AND REGULATING TECHNOLOGY, NAMELY, ELECTRICAL CONTROLLERS AND COMPUTING PROGRAMS FOR THE OPERATION, CONTROL, REGULATION AND SUPERVISION OF SWITCHGEARS OFF-CIRCUIT AND ON-LOAD TAP-CHANGERS