IEC TS 61850-2:20 19（E）包含变电站自动化系统中使用的特定术语和定义的词汇表，这些术语和定义在IEC 61850系列的各个部分中进行了标准化。 第二版取消并取代了2003年出版的第一版。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更: a)新版IEC 61850标准系列中使用的新定义的定义； b)更新IEC 61850标准系列新领域电力公用事业自动化的现有定义并提供同质性 c)删除不推荐使用的定义（逻辑设备类；通用系统状态事件；变电站自动化系统）； d)对IEC 61850-2第一版进行澄清和更正。 该出版物与智能电网具有核心相关性

IEC TS 61850-2:2019 (E) contains the glossary of specific terms and definitions used in the context of Substation Automation Systems which are standardized in the various parts of the IEC 61850 series.
This second edition cancels and replaces the first edition, published in 2003. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) definition of new definitions used in the new edition of the IEC 61850 standard series;
b) updating of existing definitions to the new domain power utility automation of the IEC 61850 standard series and to provide homogeneity
c) removal of deprecated definitions (logical device class; generic system state event; substation automation system);
d) provision of clarifications and corrections to the first edition of IEC 61850-2.
This publication is of core relevance for Smart Grid