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Calibration method and system for electric energy meter

A calibration method and a calibration system technology are applied in the field of calibration methods and systems of electric energy meters, which can solve the problems of calibration reliability and low accuracy, and achieve the effect of improving reliability and accuracy.

Inactive Publication Date: 2008-04-02
SHENZHEN CLOU ELECTRONICS
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for calibrating an electric energy meter, aiming at solving the problem of low calibration reliability and accuracy caused by various calibration errors when calibrating the electric energy meter in the prior art

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  • Calibration method and system for electric energy meter
  • Calibration method and system for electric energy meter
  • Calibration method and system for electric energy meter

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] In the present invention, the calibration console sends calibration parameters to the calibrated electric energy meter, and the calibrated electric energy meter calculates the error compensation coefficient according to the calibration parameters provided by the calibration console, and calibrates itself according to the error compensation coefficient, which improves the accuracy of the electric energy meter calibration. reliability and precision.

[0036] Figure 2 shows the energy meter calibration environment provided by the present invention. The power source, the standard energy meter an...

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Abstract

The invention is suitable for the electric instrument field and provides a calibration method and system for electric energy meter, wherein, the method includes the following steps: a calibration control desk transmits basic calibration command frame to a calibrated electric energy meter to complete calibrating initialization of the meter; moreover, the basic calibration command frame carries the initialization parameters and the phase line value of the calibrated electric energy meter; when the initialization of the calibrated electric energy meter is completed, the calibration control desk which controls the output of a power source according to calibration steps reads the calibration parameters generated by a standard electric energy meter according to the output of the power source and transmits calibration command frame to the calibrated electric energy meter; moreover, the calibration command frame carries the calibration parameters and calibration step mark; finally, the calibrated electric energy meter completes calibrating operation according to the calibration parameters and the calibration step mark carried by the calibration command frame, the calibrated parameter calculation error compensation coefficient generated according to the output of the power source. The invention increases the reliability and the accuracy in electric energy meter calibration.

Description

technical field [0001] The invention belongs to the field of electric energy instruments, in particular to a method and system for calibrating an electric energy meter. Background technique [0002] In the power system, all kinds of electric energy meters need to calibrate their electric energy measurement errors before they are connected to the network, and the method of error verification is generally used. As shown in Figure 1, the calibration console controls the power source to output alternating current, and the alternating current is input to the standard electric energy meter and the electric energy meter to be calibrated at the same time. The calculator collects standard electric energy pulses and calibrated electric energy pulses, uses the method of error verification to calculate the error compensation coefficient of the calibrated electric energy meter, uploads the error compensation coefficient to the calibration console, and the calibration console transmits it...

Claims

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Application Information

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IPC IPC(8): G01R35/04G01R35/00
Inventor 刘伟
Owner SHENZHEN CLOU ELECTRONICS
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