S级测量用电流互感器检定方法的讨论

Discussions on the verification method of measuring current transformers with S rate

该文讨论S级测量用电流互感器检定方法及其辅助检定设备的选用。由于大多数测量标准是不带S级的,提出一种方法,用二次电流为1A的标准电流互感器来检定带S级二次电流为5A的被测电流互感器,实验证明这种方法可以保证量值溯源的准确可靠。

This paper discusses on the verification method of measuring current transformer with S rate and the selection of auxiliary equipment for verification. Because most of the measuring transformers are standards without S rate, a new method using 1A measuring standard for the verification of 5A transformer under test is put forward in this paper. Experiment proves that this method is correct and reliable and can assure the value trace to the primary standard.