合并单元在电子式互感器误差调节中的作用

电子式互感器是智能变电站过程层重要的一次设备,负责采集电力系统的一次电压和电流信息,并将其传送到过程层网络,以供计量、保护和测控设备使用。合并单元作为电子式互感器与过程层的数字接口,在电子式互感器的误差调节中起着重要的作用。通过修改合并单元内部的比例系数来调节电子式互感器的误差是对电子式互感器进行现场误差调试、保证其测量精度的重要手段。

The role of merging unit in electronic transformer error adjustment

Electronic transformer is an important process-level device of the smart substation; it is responsible for collecting voltage and current information of the power system and transmits it to the process layer network for measuring, protection and control devices. As the digital interface between electronic transformer and process layer network, merging units plays an important role in electronic transformer error adjustment. Modifying the merging units internal scale factor to adjust the error value of electronic transformer is an important means to adduce the error value on-spot adjustment and ensure the accuracy.