What is IEC 61850:72?

IEC 61850:72 is a widely used international standard in the field of electrical power systems. It defines a framework for communication and interoperability between various devices and systems in substations. In this article, we will explore the key concepts and features of IEC 61850:72.

The Purpose of IEC 61850:72

The primary purpose of IEC 61850:72 is to enable seamless communication and integration between different devices and systems used in power substations. Traditionally, substation automation relied on proprietary protocols and closed systems, which limited interoperability and flexibility. IEC 61850:72 addresses these challenges by providing a standardized approach for device communication.

Key Features of IEC 61850:72

IEC 61850:72 introduces several key features that enhance the performance and efficiency of power substations. First and foremost, it defines an object-oriented data model, known as the Common Information Model (CIM). CIM allows for consistent representation of information across different devices and systems, enabling seamless data exchange.

Another important feature of IEC 61850:72 is the use of Ethernet-based communication networks. By leveraging Ethernet technology, substations can benefit from higher bandwidth, faster data transfer rates, and improved reliability compared to traditional serial-based communication.

Furthermore, IEC 61850:72 incorporates the concept of "GOOSE" (Generic Object-Oriented Substation Event), which enables fast and reliable exchange of time-critical information within substations. GOOSE messages utilize multicast communication, ensuring that important events reach all relevant devices simultaneously, reducing transmission delays and improving overall system response.

Benefits and Applications

The adoption of IEC 61850:72 brings several benefits to power utilities and substation operators. Firstly, it simplifies system integration, as devices from different vendors can now communicate seamlessly using standardized protocols and data models. This reduces the complexity and cost associated with maintaining proprietary systems.

Additionally, IEC 61850:72 promotes interoperability, allowing for easy exchange of information between different systems within and outside the substation. This facilitates advanced automation and control applications, such as condition monitoring, fault diagnosis, and asset management.

Moreover, the use of Ethernet-based communication networks enables better scalability and flexibility in substation design. It supports the integration of diverse devices, including intelligent electronic devices (IEDs), protection relays, smart meters, and more, creating a unified and future-proof infrastructure.

In conclusion, IEC 61850:72 plays a crucial role in modernizing power substations and improving their efficiency. By standardizing communication protocols, data models, and networking technologies, it unlocks new possibilities for enhanced automation, interoperability, and reliability within the electrical power system.