Protocol profile for power utility automation Application

by Hubert Kirrmann, Solutil, Switzerland and William Dickerson, Arbiter Systems, Inc, Canada

Electrical utilities depend increasingly on precise clock synchronization to detect grid instability and protect the infrastructure. The IEC and IEEE collaborated on a profile of the Precision Time Protocol that suits the needs of the power utility industry and that is integrated in the IEC 61850 utility communication suite. The resulting standard IEC/IEEE 61850-9-3 provides sub-microsecond time accuracy and supports seamless redundancy. More

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