Szukana fraza: [Abstrakt = "Since 2004, when a new IEC 61850 standard for electrical substation automation systems was implemented, the substation automation development philosophy has radically changed. The standard introduces new notions to be used for the equipment operation description. A new notion of an intelligent electronic device \(IED\) is also introduced together with new methods for the communication between the system devices and functions implemented in them. Although tools for the selection of IEDs for a substation bay can be supplied by various manufacturers of the automated protection equipment, their implementation is based on one traditional scheme, where a ready\-to\-use device is selected for a given substation bay. The objective of the presented article is to present selected applications to be used in the process of developing the substation automation system as well as to demonstrate a different approach of their operation."]

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