CAJ | 학술논문

在现场误差测试时，如果标准设备与被测互感器相距较远，传统互感器校验仪需连接较长二次测试线，所形成的二次负荷严重影响测量精度；传统接线方式复杂，容易人为出错。为解决以上问题，本文基于无线通信技术提出一种互感器校验仪，被测与标准互感器之间无需连接二次线，采用直接测量法计算被测互感器的比值差与相位差。本装置在现场进行了试用，测试数据与传统校验仪基本一致，准确度等级达到0.05级，满足对0.2级及以下互感器的校验要求。
재현장오차측시시，여과표준설비여피측호감기상거교원，전통호감기교험의수련접교장이차측시선，소형성적이차부하엄중영향측량정도；전통접선방식복잡，용역인위출착。위해결이상문제，본문기우무선통신기술제출일충호감기교험의，피측여표준호감기지간무수련접이차선，채용직접측량법계산피측호감기적비치차여상위차。본장치재현장진행료시용，측시수거여전통교험의기본일치，준학도등급체도0.05급，만족대0.2급급이하호감기적교험요구。
When field error testing is conducted, traditional transformer calibrator needs to be connected with test lines if the standard and the tested transformers are set far apart. The secondary load caused by the connection seriously affects the measurement accuracy, and the traditional complex wiring method is prone to human operation errors. To solve the above problems, this paper puts forward the transformer calibrator based on wireless communication technology, which uses direct measurement method to calculate the ratio error and phase difference of the measured transformer. On-field test of the instrument shows that the test data is in accordance with traditional calibrator, and the accuracy satisfies the standard of 0.05 class transformers. Therefore, the proposed calibrator meets the requirement of calibrating 0.2 class(and the following) transformers.