To do so, electrical substations have typically used miles of copper cabling for point-to-point connections, measuring currents and voltages, and controlling the circuit breakers for power switching and protecting substation equipment. However, copper is expensive. It also has limited capacity for one measurement or a single control signal (important for power delivery and condition monitoring), and introduces potential safety risks to workers and equipment.
This conventional design and aging control equipment results in costly testing and maintenance, and restricts the communication of important information useful for identifying an asset’s health and determining when equipment maintenance is required. Grid operators of conventional copper-run substations must make periodic site visits to collect information on equipment, efficiency, faults, or failures.
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