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A framework for remote in-service metrological surveillance of energy meters
Measurement ( IF 5.6 ) Pub Date : 2020-09-13 , DOI: 10.1016/j.measurement.2020.108438
Žilvinas Nakutis , Paulius Kaškonas , Marius Saunoris , Vytautas Daunoras , Marko Jurčević

A framework for energy meters’ error remote monitoring to assist metrological supervision in legal and industrial metrology fields is suggested. As a use case, a method for the remote monitoring of customer’s meter error using a certified reference sum meter is discussed. The method is aimed at remotely determining an adjustment gain (multiplicative error correction factor) of a meter. An analysis of uncertainty of the meter adjustment gain estimation is introduced. It is shown that the uncertainty is influenced by the precision of reference meter and meter under test, but to the largest extent is defined by fluctuations of power consumption in the electrical grid. Typical uncertainties of meter adjustment gain estimation achievable in low voltage grid using Class 0.2 or Class 0.5 remote reference meter and Class 1 or Class 2 m under test are reported. The preliminary validation of uncertainty estimation is performed using experimental data.



中文翻译:

电能表远程在役计量监视框架

提出了电能表误差远程监控框架,以协助法律和工业计量领域的计量监督。作为用例,讨论了一种使用经过认证的参考和表远程监视客户的表错误的方法。该方法旨在远程确定仪表的调节增益(倍增误差校正因子)。介绍了电表调节增益估计的不确定性分析。结果表明,不确定度受参考电表和被测电表的精度影响,但最大程度受电网功耗的波动影响。使用Class 0.2或Class 0在低压电网中可实现的电表调节增益估计的典型不确定性。报告了5个远程参考仪表和1级或2 m级被测物。使用实验数据进行不确定性估计的初步验证。

更新日期:2020-09-13
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