绕组变形测试仪校准系统的不确定度分析  

Uncertainty Analysis for the Verification System of Winding Deformation Tester

作　　者：翟少磊 刘静 魏龄 陈叶 廖耀华 刘斯杨 Zhai Shaolei;Liu Jing;Wei Ling;Chen Ye;Liao Yaohua;Liu Siyang(Electric Power Research Institute of Yunnan Power Grid Co.,Ltd.,Kunming Yunnan 650217,China;Yunnan Electric Power Technology Co.,Ltd.,Kunming Yunnan 650217,China)

机构地区：[1]云南电网有限责任公司电力科学研究院,云南昆明650217 [2]云南电力技术有限责任公司,云南昆明650217

出　　处：《电气自动化》2020年第5期99-101,共3页Electrical Automation

基　　金：直流电压互感器暂态性能测试技术研究与平台开发(YNKJXM20190047)。

摘　　要：针对变压器绕组变形测试仪的校验中缺乏对应的校准方法以及相关的的性能指标评估和判定,并且校验过程繁琐复杂等问题,采用一种变压器绕组变形测试仪自动校验装置,通过设置参数和控制信息实现对纯阻性衰减切换模块和阻容性衰减切换模块实现控制,实现多样化校验。通过在1 kHz,10 kHz,100 kHz和300 kHz频率点的衰减量测量,并对校验系统进行不确定度评定,为进一步研究变压器绕组变形测试仪选频滤波特性的校准问题奠定基础。Aiming at lack of corresponding verification method and related performance index evaluation and judgment in the verification the of transformer winding deformation tester and with respect to cumbersomeness and complexity of the verification process,an automatic verification device for the tester was adopted to realize control over the purely resistive attenuation switching module and the resistive-capacitive attenuation switching module through parameter setting and control information-a diversified verification.Attenuation was measured at 1 kHz,10 kHz,100 kHz and 300 kHz and uncertainty of the verification system was evaluated,thus laying a foundation for further research on the calibration of the frequency selection filter characters of the transformer winding deformation tester.

关 键 词：FRA型绕组变形测试仪 自动校准系统 纯阻性衰减切换模块 阻容性衰减切换模块 不确定度 

分 类 号：TM93[电气工程—电力电子与电力传动]