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PRP/HSR Next Wave of IEC 61850 Substations
The IEC 62439 standard states that the time that the plant allows for recovery before taking emergency actions (e.g., emergency shut-down, fall-back mode) should be less than 10 ms. In IEC 61850 edition 2, it also clearly states that the communication redundancy times of GOOSE and SMV protocols in substation automation systems are required to be BUMPLESS .

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