GB/T 20840.3-2013
ActiveInstrument transformers—Part 3: Additional requirements for inductive voltage transformers
互感器 第3部分：电磁式电压互感器的补充技术要求
Application Summary AI generated
This standard specifies additional technical requirements, test methods, and accuracy classes for inductive voltage transformers used in electrical power systems. It is applied in the design, manufacturing, and testing of voltage transformers for metering, protection, and control in high-voltage substations and power grids. The standard ensures compatibility and safety when these transformers are used for voltage measurement and relay protection at rated frequencies of 50 Hz or 60 Hz.
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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.