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Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus.
power management and control equipment, namely, microprocessor based circuits with interface modules, for control of electric power systems comprising multiple generators and load feeders; electric protective relays; synchronizing equipment, namely, control circuits to ensure matching of synchronous generator voltage waveforms before connecting generators to a grid supply; excitation apparatus, namely, power supply transformers, power semi conductors, control circuits, excitation changeover contactors, and/or field suppression contactors and resistors for control of excitation current supplied to the field of synchronous electric machines, typically generators; electric control equipment for monitoring synchronous electric machines to identify rotor earth faults and similar condition data