GB/T 14598.121-2017
ActiveMeasuring relays and protection equipment—Part 121：Functional requirements for distance protection
量度继电器和保护装置 第121部分：距离保护功能要求
Application Summary AI generated
This standard specifies the functional requirements, performance criteria, and testing methods for distance protection relays used in electrical power systems. It is applied by manufacturers and engineers to ensure the reliable operation of transmission and distribution line protection schemes, particularly for detecting faults and coordinating protection zones in high-voltage networks. The standard is critical for compliance testing and design validation of protection equipment in substations and utility grids.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.