ABB REF615E-E是一款馈线保护继电器，常用于中压产品和系统中。这款继电器具有多种特性，如保护功能、过载能力、短路保护等，可以有效保护电路系统，确保其安全运行。此外，该继电器还具有结构形式模块化、安装方式多样化的特点，方便用户进行维护和升级。

It is a feeder protection relay commonly used in medium voltage products and systems. This relay has various characteristics, such as protection function, overload capacity, short circuit protection, etc., which can effectively protect the circuit system and ensure its safe operation. In addition, the relay also has the characteristics of modular structure and diverse installation methods, making it convenient for users to maintain and upgrade.