Hi 00123456 .
IEC61850 standard not declarated any protection functionality ( only names of function, communication protocols , etc).
For REF detalies please see in the forum date 14.11.2000,
sorry Im new here and don't know do links. You have greate explanation for REF
Slavagar is right. The standard has nothing to do with the application, in principle. It describes which signals (logical attributes etc... but they are actually "signals") the logical nodes (function) should at least have and how they should be called (so, how the protection is mapped in the standard).
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