光电电流互感器测试与校验方法

Test and Calibration of Optical Electric Current Transformer

介绍了典型的光电电流互感器的结构原理和输出特点。鉴于传统的电流互感器测试方法已经不适于校验新型的电流互感器,依据IEC标准和误差分析理论,提出了光电电流互感器的测试和校验方法。指出采用虚拟仪器技术的测试系统具有灵活、易于扩充的优点。认为标准通道的各部件需要经过严格的溯源,标准通道的设计需要遵守微小误差原则。所设计的测试系统已成功应用于自行研制的光电电流互感器性能指标的测试。

The structure and interface of typical optical electric current transformers are described. Because the traditional calibrating method is not suitable for testing optical electric current transformer, a novel test system is designed based on the IEC standard and error analysis theory. The virtual instrument technique is applied, so that the test system can be modified and extended flexibly. It is pointed out that every part of the reference channel should be evaluated by an authoritative institution, and the tiny error principle should be abided by. This test system has been successfully used to test the performance of the optical electric current transformer developed.