直流大电流综合试验装置校准方法探讨及不确定度解析  

Research on Calibration Method and Uncertainty Evaluation of DC High Current Comprehensive Test Device

作　　者：张春香 李昕 孙宁 ZHANG Chunxiang;LI Xin;SUN Ning(Tianjin Tianchuan Electric Control Equipment Test Co.,Ltd.,Tianjin 300300,China;Tianjin Research Institute of Electric Science Co.,Ltd.,Tianjin 300180,China)

机构地区：[1]天津天传电控设备检测有限公司,天津300300 [2]天津电气科学研究院有限公司,天津300180

出　　处：《电气传动》2024年第4期85-88,共4页Electric Drive

基　　金：天津电气科学研究院有限公司重点类项目(JC2022ZL002)。

摘　　要：直流大电流综合特性试验装置是用于检测直流低压电器过流保护电器的脱扣动作特性的仪器,指在低压电器行业用于对直流产品进行长延时、短延时、瞬时脱扣试验和短路试验的测试设备。随着直流低压电器产品在有色冶金、氯碱化工、低压配电、直流输配电、新能源以及轨道交通等领域的广泛应用,用于直流电器产品检测的直流大电流综合特性试验装置需要定期溯源,以满足试验检测能力的准确度要求。在计量校准领域内展开相关校准方法的现状分析,梳理了现阶段此试验装置校准方法的研究方向。根据试验装置对应产品,依据国家标准,提出新的校准参数,针对直流大电流装置的校准问题,提出使用光纤电流传感器测量方法进行测量,并对其产生的数据进行不确定度评定分析。DC high current comprehensive characteristic test device is used to detect the released characteristics of DC low-voltage electrical overcurrent protection electrical device,which is used in low-voltage electrical industry for DC products for long time delay,short time delay,instantaneous tripping test and short circuit test.With the wide application of DC low-voltage electrical products in non-ferrous metallurgy,chlor-alkali chemical industry,low-voltage power distribution,DC transmission and distribution,new energy and railway applications,the DC high current comprehensive characteristic test device used for DC electrical product testing needs to be traced regularly to ensure that it can meet the accuracy requirements of the test detection capability.In the field of measurement calibration,the present situation of relevant calibration methods was analyzed,and the research direction of calibration methods of this test device was reviewed.According to the corresponding product of the test device and the national standard,a new calibration parameter was proposed.Aiming at the calibration problem of the DC high-current device,the measurement method of optical fiber current sensor was proposed,so as to evaluate the uncertainty of the data generated.

关 键 词：光纤电流传感器 直流大电流 校准参数 不确定度评定 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]