Calibration method for register electric energy meter

Abstract

The invention provides a calibration method for a register electric energy meter. The calibration method includes the following steps: a first step, installing a register electric energy meter; a second step, allowing a calibration chip to obtain the photoelectric sampling precision; a third step, determining if the gain 1 .0 is qualified, entering a fourth step if not, and entering a fifth step if so; the fourth step, allowing the calibration chip to find an abnormal voltage point location x and an abnormal current point location y, and artificially debugging the x and the y; the fifth step,determining if the 0.5L angular difference is qualified, entering a sixth step if not, and entering a seventh step if so; the sixth step, allowing the calibration chip to find an abnormal angular difference point location m, and artificially debugging the m; the seventh step, determining if the small current bias is qualified, entering an eighth step if not, entering a ninth step if so; the eighthstep, allowing the calibration chip to find an abnormal bias point location n, and artificially debugging the n; and the ninth step, completing meter calibration. The method has fewer calibration steps, can greatly lower the difficulty of the calibration and improve the efficiency of the calibration.

Description

technical field [0001] The invention relates to the technical field of calibration of electric energy meters, in particular to a method for calibration of electric energy meters of measuring devices. Background technique [0002] The existing measuring device electric energy meter is equipped with a metering chip and various electrical components. Due to its simple structure, when the meter is calibrated, each point can only be manually detected one by one. Such as figure 1 As shown, the existing meter calibration method of the meter electric energy meter is as follows: firstly, install the meter electric energy meter on the meter calibration platform, and start the meter calibration platform, and then check whether the 1.0 gain is qualified. Check whether the three voltage points 1, 2, and 3 are qualified one by one, and then check the 3 current points 1, 2, and 3 one by one; then check whether the 0.5L angle difference is If it is qualified, it is necessary to check the ...

AI Technical Summary

Problems solved by technology

The above meter calibration process needs to detect many points, the whole meter calibration method is compl

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