GB/T 7676.5-2017
ActiveDirect acting indicating analogue electrical measuring instruments and their accessories—Part 5：Special requirements for phase meters, power factor meters and synchroscopes
直接作用模拟指示电测量仪表及其附件 第5部分：相位表、功率因数表和同步指示器的特殊要求
Application Summary AI generated
This standard specifies the technical requirements, test methods, and accuracy classes for phase meters, power factor meters, and synchroscopes used in electrical power systems. It is applied in the manufacturing and quality verification of these analogue instruments, ensuring reliable measurement of phase angles, power factors, and synchronization conditions in AC circuits. The standard is primarily used by electrical equipment manufacturers, metrology laboratories, and power grid operators for product certification and routine calibration.
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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.