电测与仪表
電測與儀錶
전측여의표
ELECTRICAL MEASUREMENT & INSTRUMENTATION
2013年
11期
14-17
,共4页
传统互感器%电子式互感器%校验系统%比值误差%相位误差
傳統互感器%電子式互感器%校驗繫統%比值誤差%相位誤差
전통호감기%전자식호감기%교험계통%비치오차%상위오차
conventional transformers%electronic transformers%calibration system%ratio error%phase error
提出一种校验传统互感器和电子式互感器的方法，该方法基于同步采样和离散傅里叶变换（discrete foruier transformation，DFT）算法。根据该方法建立了传统互感器和电子式互感器的校验系统，详细分析了影响校验系统测量准确度的因素，并采用补偿方法提高测量准确度。校验系统在国家高电压计量站进行了校准测试，测试结果表明系统满足校验0.2及以下等级测量用互感器的准确度要求。
提齣一種校驗傳統互感器和電子式互感器的方法，該方法基于同步採樣和離散傅裏葉變換（discrete foruier transformation，DFT）算法。根據該方法建立瞭傳統互感器和電子式互感器的校驗繫統，詳細分析瞭影響校驗繫統測量準確度的因素，併採用補償方法提高測量準確度。校驗繫統在國傢高電壓計量站進行瞭校準測試，測試結果錶明繫統滿足校驗0.2及以下等級測量用互感器的準確度要求。
제출일충교험전통호감기화전자식호감기적방법，해방법기우동보채양화리산부리협변환（discrete foruier transformation，DFT）산법。근거해방법건립료전통호감기화전자식호감기적교험계통，상세분석료영향교험계통측량준학도적인소，병채용보상방법제고측량준학도。교험계통재국가고전압계량참진행료교준측시，측시결과표명계통만족교험0.2급이하등급측량용호감기적준학도요구。
A method for calibration of conventional and electronic transformers is proposed. It is based on synchronization sampling and discrete foruier transformation (DFT) algorithm. According to the method, the calibration system has been founded. The factors that affect measurement accuracy of calibration system are thoroughly analyzed and the compensation method is adopted to improve the accuracy of the system. The calibration system has been tested in National Center for High Voltage Measurement. The tested results show that it fulfills the requirements for calibrating transformers with precision class up to 0.2.
