Power System Communication
This connection uses a variety of technologies, including SCADA (Supervisory Control and Data Acquisition), teleprotection, synchrophasors, &
The communication infrastructure in the medium-voltage and low-voltage distribution systems is usually hetero-geneous, and the suitable technolo-gies depend to a large extent on the local topology (large city, rural region, distances, etc.). It must therefore be specifically tailored for each customer.
Standards-based power line carrier solutions provide an attractive communication channel for all applications in medium-voltage and low-voltage Smart Grid scenarios. They use the utility-owned infrastructure in the distribution network, and provide a reliable and affordable communica- tions channel.
Since the early 1930s Siemens has delivered power line carrier equipment for high-voltage systems. In today's transmission systems, almost all substations are monitored and controlled online by Energy Management Systems (EMS).
Communications infrastructure equipment employs a variety of power system components. Power factor corrected (PFC) AC/DC power supplies with load sharing and redundancy (N+1) at the front-end feed dense, high efficiency DC/DC modules and point-of-load converters on the back-end.
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