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What is IEC 61850-9-2:2015?

IEC 61850-9-2:2015 is an international standard developed by the International Electrotechnical Commission (IEC) that defines the communication requirements for sampled values in electrical power systems. It provides a protocol for transmitting and exchanging real-time data between devices used in power generation, transmission, and distribution.

The Purpose of IEC 61850-9-2:2015

The main purpose of IEC 61850-9-2:2015 is to enable interoperability and seamless communication between Intelligent Electronic Devices (IEDs) in substations. This allows for efficient monitoring and control of power systems, enhancing their reliability and safety.

The standard specifies a process called "publish-subscribe" in which IEDs can publish data and other devices can subscribe to receive this information. The data exchanged can include measurements, status information, and control commands.

Key Features and Benefits

IEC 61850-9-2:2015 offers several key features and benefits:

High Speed and Accuracy: The standard supports high-speed transmission of sampled values with accurate time synchronization, ensuring reliable and precise information exchange.

Flexibility and Scalability: It provides a flexible framework that can be easily adapted and scaled to various power system configurations, making it suitable for a wide range of applications.

Interoperability: IEC 61850-9-2:2015 promotes interoperability among different vendors' devices, enabling easy integration and compatibility within a substation or across multiple substations.

Cybersecurity: The standard incorporates measures to protect data integrity and confidentiality, ensuring the security of communication within the power system.

Applications of IEC 61850-9-2:2015

The applications of IEC 61850-9-2:2015 span across various domains within the power industry:

Protection and Control: The standard enables accurate monitoring and control of power system protection devices, enhancing the reliability and stability of the grid.

Substation Automation: IEC 61850-9-2:2015 facilitates advanced substation automation systems by providing real-time data exchange between different intelligent devices in a substation.

Wide Area Monitoring and Control: It allows for centralized monitoring and control of multiple substations over a wide geographical area, enabling efficient grid management and fault detection.

Asset Management: The standard supports advanced asset management techniques by providing access to real-time equipment status and health information.

In conclusion, IEC 61850-9-2:2015 plays a crucial role in modernizing the power industry by providing a standardized communication protocol for sampled values. Its flexibility, scalability, and interoperability make it a key enabler for efficient power system monitoring, control, and management.


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