Two Projects of China Electric Power Research Institute were selected in the 2019 National Measurement Comparison Program

On August 7, it was learned from the State Administration for Market Regulation that the "DC High-voltage Divider Calibration Capability Measurement Comparison" and "DC Energy Calibration Capability Measurement Comparison" projects were successfully selected in the 2019 National Measurement Comparison Program. As the leading laboratories, the National Center for High Voltage Measurement (NCHVM) and the State Grid Measurement Center are responsible for implementing the national measurement comparison respectively.

The measurement comparison refers to measuring the same transfer standard with stable performance between different laboratories according to the pre-specified conditions, and verifying the measurement consistency of different laboratories by analyzing the measurement results. Carrying out measurement comparison activities is an important basis for ensuring the accuracy of uniform measurement benchmark and standards and accurate and reliable measurements, and is an effective means to support the supervision during and after measurement and improve the capacity of measurement technology institutions.

The State Administration for Market Regulation authorized the National Center for High Voltage Measurement (NCHVM) and the State Grid Measurement Center to organize a nationwide DC high voltage divider calibration capability and DC energy calibration capability comparison, fully demonstrating the leading position of CEPRI in the field of high voltage calibration and DC energy calibration, effectively enhancing the influence of CEPRI in the industry to make positive contributions to the construction of world-class power scientific research institutions.

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As the only national professional measurement station that holds the national measurement standard in China, NCHVM became the first capacity verification provider in the calibration field approved by CNAS in 2017, and the project of "Large Power Frequency Current Proportional Measurement Comparison" was selected in the 2017 International Measurement Comparison Program. As a measurement authority in the power industry, the State Grid Measurement Center has the capability of calibration of DC energy below 1,000V/2,000A. In 2018, it successfully completed the DC energy calibration capability comparison between 16 provincial-level measurement institutions, effectively supporting the construction of the DC energy measurement traceability system of State Grid.

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