The project solved the overall metrological verification / calibration problems of a wide variety...

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Research of High Voltage Electrical Energy Measurement Standard

The project solved the overall metrological verification / calibration problems of a wide variety of high voltage electrical energy measuring instruments under reference conditions. It also solved the problem in online calibration of the high voltage electricity measuring instruments in grid line. The relative uncertainty of in-house measurement standard is better than 0.02%. The uncertainty of on-site calibration is better than 0.05%, while the inline calibration uncertainty is better than 0.2%.