摘要
模拟量输出的电子式电流互感器的工作机理和校验方法不同于传统的电磁式电流互感器,目前对其进行校验需要电子式互感器校验仪和同步装置。针对模拟量输出的电子式电流互感器的本体校验,提出一种新的校验方法——比较测差法,利用专用的电压互感器校验仪测其比值差和相位差,无须同步,所需设备制作简单,原理成熟,无同步误差,测试更准确。
The working mechanism and verification method of the ECT with analog output are different from the traditional electromagnetic current transformer, and the ECT instrument and the synchronization device are needed to check it. A new calibration method is proposed for the ontology verification of ECT with analog output, which using the difference measurement method and a dedicated voltage transformer calibrator to measure the ratio difference and phase difference, without synchronization, bein~ of the advantaees of simole eauioment, mature principle and accurate test results.
出处
《机械工程与自动化》
2017年第5期145-146,共2页
Mechanical Engineering & Automation
关键词
模拟量
ECT
误差
校验
互感器校验仪
analog
electronic current transformer
error
calibration
transformer calibrator
