Energy Central Professional


The Next Big Thing in Distribution Automation: Ultra High-Speed Pole-Top Automation Transfer Scheme



    WENDELL, NC -- Siemens Digital Grid has partnered with Rusk County Electric Cooperative, which has been powering members since 1937, to collaborate on a new high-speed automatic source transfer system to transfer power from one substation to another for a large industrial customer on its distribution grid. 

    Rusk County Electric Coop is be able to continue delivering power to this particular customer in the case of an interruption from the substation or a problem with the feeder supplying power to the industrial facility. The system is able to execute all transfer operations in less than 100 ms.

    With its energy automation research and development hub based out of Wendell, NC, Siemens developed its Siemens Distribution Feeder Automation (SDFA) ATS technology specifically for utilities. Siemens’ technology will allow the system to issue open and close commands from field devices that control the pole-top re-closer switches to transfer power within less than six power cycles. Rusk County Electrical Coop has installed two such systems.

    For further information on Siemens Distribution Feeder Automation technology, please visit



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