本标准适用于向用户提供电力的固定发电站的电力系统 电力系统。包括以下相关系统的术语: 1） 发电机组电力系统 2） 发电机组辅助电力系统 3） 电站辅助电力系统 4） 发电机组直流辅助电源系统 5） 电站直流辅助电源系统 本标准仅限于上述电力系统，不包括仪表、控制装置或辅助设备的术语。

This standard applies to electric power systems in stationary generating stations that provide electric power to the power system. Nomenclature is included for the following interrelated systems: 1) Generating unit power system 2) Generating unit auxiliaries power system 3) Station auxiliaries power system 4) Generating unit dc auxiliaries power system 5) Station dc auxiliaries power system This standard is limited to the preceding power systems and does not include nomenclature for instrumentation, controls, or auxiliaries.