Error Calibration of Three-Phase Method for Combined Transformer

Abstract:

Three-phase combined transformer has a large number of application to special energy metering in power grid, its performance is directly related to the accuracy of electric energy metering. So it is necessary to ensure its performance and accuracy. It rules that three-phase combined transformer should be calibrated with three-phase method, but most of metrology departments calibrate three-phase combined transformer in single-phase method. Based on the mechanism of the three-phase transformer, single-phase method and three-phase method had been compared on three-phase transformer experimental platform. The result shows that it would be large error when the three-phase transformers are calibrated with single-phase method. Three-phase transformer calibration should be operated with three-phase method.

• Periodical: Advanced Materials Research (Volumes 986-987)
• Pages: 1821-1825
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.986-987.1821
• Online since: July 2014
• Authors: Bing Ai*, Qiang Shi
• Keywords: Single-Phase Method, Three-Phase Combined Transformer, Three-Phase Method, Transformer Calibration

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