合并单元测试仪量值溯源方法研究

Research of traceability method of merge unit tester

电子式互感器及合并单元是智能变电站的核心部件,其性能及精度等各项指标对继保、测控、数字电能计量等有决定性的影响,而各地供电单位对电子式互感器及合并单元的选型、验收、定期检测等环节所采取的措施或手段尚未达到完善、全面、准确的程度。提出了一种合并单元测试仪量值溯源装置,具有表源一体化可分离结构特点,既可以对电子式互感器校验仪及合并单元测试仪进行量值溯源,也可以直接校准电子式互感器及合并单元的误差。

Electronic transformers and merging units are the core components of smart substation. The performance and accuracy of these indicators have a decisive impact on the following measures ： protection, measurement and control, and digital energy metering.However, selection or acceptance, regular testing and other aspects of the measures taken or means have not yet reached a perfect,comprehensive and accurate level. This paper presents a merging unit tester traceability device with table source integrated separable structure characteristics, both for electronic transformer calibrator and the merging unit tester traceability. It can also directly cali-brate the electronic transformer and the merging unit error.