CEI 61850

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IEC 61850 is an international standard defining communication protocols for intelligent electronic devices at electrical substations. It is a part of the International Electrotechnical Commission's (IEC) Technical Committee 57 reference architecture for electric power systems. The abstract data models defined in IEC 61850 can be mapped to a number of protocols. Current mappings in the standard are to Manufacturing Message Specification (MMS), Generic Object Oriented Substation Event (GOOSE) [see section 3, Terms and definitions, term 3.65 on page 14], SV (Sampled Values) or SMV (Sampled Measure Values), and so on to web services. In the previous version of the standard, GOOSE stood for "Generic Object Oriented Substation Event", but this old definition is still very common in IEC 61850 documentation.