IEC 60076-22-5:20 21涵盖了电力变压器和电抗器冷却回路中使用的电泵。它适用于根据IEC 60076-1安装在液浸式电力变压器上的电泵和根据IEC 60076-6安装在室内或室外安装的带和不带保护器的电抗器。 它概述了电气和液压性能、机械设计、常规测试和型式测试的操作要求。此外，在资料性附件中规定了泵组优选尺寸的性能和尺寸。 本文件中涵盖的泵是由浸入绝缘液体中的鼠笼式感应电机驱动的旋转动力泵。 符合本文件的泵组可以采用直列式或末端吸入式设计。

IEC 60076-22-5:2021 covers electric pumps used in the cooling circuits of power transformers and reactors. It applies to electric pumps mounted on liquid immersed power transformers according to IEC 60076-1 and reactors according to IEC 60076-6 with and without conservator for indoor or outdoor installation.
It outlines the operation requirements for the electrical and hydraulic performance, mechanical design, routine testing and type testing. Additionally, performance and dimensions of preferred sizes of pump sets are specified in informative annexes.
The pumps covered in this document are rotodynamic pumps driven by a squirrel cage induction motor that is immersed in the insulating liquid.
Pump sets conforming to this document can be of in-line or end suction design.