Development and Uncertainty Evaluation of Calibrating System for Digital Energy Setting

The power measurement mode has made fundamental changes with the development of smart substation, traditional energy metering analog devices are replaced by digital devices according to the requirements of digitalized information substation. Creating traceability between digital measuring value and...

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Bibliographic Details
Published inMATEC Web of Conferences Vol. 55; p. 3011
Main Authors Zhao, Sha, Bai, Jingfen, Lin, Fantao, Yang, Xiangjiang, Yu, Chunping
Format Journal Article Conference Proceeding
LanguageEnglish
Published Les Ulis EDP Sciences 01.01.2016
Subjects
Calibration
Electrical measurement
Energy measurement
Integrals
Measurement
Measuring instruments
Metering
Rangefinding
Uncertainty
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Summary:The power measurement mode has made fundamental changes with the development of smart substation, traditional energy metering analog devices are replaced by digital devices according to the requirements of digitalized information substation. Creating traceability between digital measuring value and analog measuring value and developing relevant calibration devices are key issues in smart substation construction. A new device for calibration digital energy meters using integral calibration technology is described in this paper. Based on the Standard Comparison Method, the device establishes a connection between the digital power and the traditional analog power with the integral calibration technology, and solves the problem that digital power was not able to be traced. The device is designed with final measuring voltage level: 220kV/110kV, measuring current range: 5A~5000A, and extended uncertainty less than 0.05%. Furthermore, the estimating process of the uncertainty of the device is discussed emphatically.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/20165503011