Standard Network Redundancy Using IEC 62439

The IEC 61850 standard has become the backbone of substation automation, allowing for the first time to engineer protection, measurement and control devices of different manufacturers and let them interoperate on the same Ethernet network, station bus or process bus. However, when high network availability is required, IEC 61850 left open how to provide network redundancy. As a result, proprietary redundancy schemes emerged, but they were not interoperable and threatened the basic goal. More

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