In the electric power industry, an intelligent electronic device (IED) is an integrated microprocessor-based controller of power system equipment, such as circuit breakers, transformers and capacitor banks.

Intelligent Electronic Devices abbreviated as IED is defined as devices that have single or multiple microprocessors integrated within it. Its main purpose involves the transmission or reception of data or control signals to or from an external device.

2010年3月29日 · This paper seeks to expose some of the hidden financial costs and reliability costs associated with copper process wiring. Additionally this paper will discuss ways in which modern lEDs can be fully implemented to further reduce wiring. The cost and reliability benefits associated with the reduced wiring will be discussed and quantified.

智能电子设备(ied)是组成智能电网的基本要素，提供系统所需 要的检测、测量、保护和控制功能。 智能电网的概念应用在输配电的领域则主要意味着电力自动化和变电站数字化。

Significant savings can be achieved through reduced hardwired cabling on switchgear by connecting to intelligent electronic devices (IEDs) - this means not only less cabling costs, but also less efforts to install, test and maintain the IEDs.

1) The order code for a replacement IED includes a fi xed (in capital letters) and a non-fi xed (in hashes (#)) part. The non-fi xed part can be freely selected as when ordering any 615 series IED. 2) With RTD inputs — Existing relay migration with the Migration Support Tool — Existing relay types and replacement IEDs —

连接 智能电气设备（IED） 能够 大大节省开关柜的硬接线成本 ——不仅仅意味着更少的接线，也包括更轻松的安装、测试以及维护IED设备。 更简易的安装方式能够简化自动化系统的工程组态、调试和维护。 提供现成的 电气设备对象库 。 使用面向对象的方法 能够减少整个系统的后期修改工程量 ，节省时间并降低整个项目进度的其它财务影响。 将 两个系统切换到一个系统 能够进一步减少自动化成本——例如将电气控制系统与过程控制系统整合。 因此，可以消除两个系统之间 …

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2019年10月16日 · Intelligent electronic devices (IEDs) have been deployed extensively in power automation systems recently, and the shift from RTUs to IEDs is evident due to the integration and interoperability features of the IEDs. This technical article briefly explains the IED advanced functionality to present a holistic view of automation in power systems.

The event data obtained by using the logger on legacy IEDs is combined with data obtained directly from IEC 61850 compliant IEDs in processing the real-time substation topology.