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For the past few years transmission and distribution system operators have gradually been shifting towards modernized connectivity. For analog, legacy substations, which often were equipped with no means for communication whatsoever, this means upgrade and retrofit. For newly designed and constructed substations this means designing entire multi-million-dollar platforms based mainly on IEC 61850 environments.
The concept behind the Digital Substation is to render the whole substation into a digital environment, converting as many analog signals as possible to digital ones and guaranteeing full equipment interoperability and connectivity. The desired upshot is increasing the reliability and speed of the crucial response time of these systems.
