A temperature-based meter calibration method for low-voltage power terminals

A low-voltage power and terminal technology, applied in the field of electric energy meters, can solve problems such as cost increase, compensation coefficient is too mechanical, and statistical deviation is large, so as to achieve the effect of improving accuracy, ensuring accuracy, and flexible calibration

Active Publication Date: 2022-06-03
NINGBO SANXING MEDICAL & ELECTRIC CO LTD
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Problems solved by technology

[0005] Although the first method can solve the problem to a certain extent, the cost of replacing the device will increase, and a certain proportion of the device will be unqualified during transportation, assembly, and wave soldering, resulting in qualified devices becoming unqualified devices again. The statistical deviation is still large; the second method avoids the trouble of replacing the device, improves the utilization rate of the original device, and reduces the cost, but the compensation coefficient is too mechanical and cannot be flexibly and dynamically compensated and calibrated according to the external ambient temperature, resulting in even greater improvement. micro

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  • A temperature-based meter calibration method for low-voltage power terminals
  • A temperature-based meter calibration method for low-voltage power terminals

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Embodiment Construction

[0027] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0028] like Figure 1-2 As shown, the low-voltage power terminal sub-temperature calibration method of the present application includes:

[0029] S1. Obtain the current power of the terminal and the ambient temperature T where the terminal is currently located;

[0030] S2. Determine the temperature range in which the current ambient temperature T is located, and perform corresponding coefficient compensation on the acquired current power according to the temperature range. The tempera...

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Abstract

The present invention relates to a temperature-based meter calibration method for a low-voltage electric power terminal. The method includes S1, obtaining the current power of the terminal and the current ambient temperature T of the terminal; S2, judging the temperature range of the current ambient temperature T, and according to the temperature range Corresponding coefficient compensation is performed on the obtained current power, and the temperature range is divided into a high temperature zone, a low temperature zone and a normal temperature zone. Compared with the prior art, the invention improves the metering accuracy of the low-voltage power terminal.

Description

technical field [0001] The invention relates to the technical field of electric energy meters, in particular to a method for calibrating a meter by temperature of a low-voltage power terminal. Background technique [0002] Low-voltage power terminals are widely used in the field of electricity consumption for meter reading, electricity statistics, and line loss determination based on measurement results. The accuracy of statistical calculations depends heavily on the measurement accuracy of power terminals. Due to the vast territory of our country and the large difference in climate between the north and the south, the existing low-voltage power terminals are greatly affected by temperature. Under different climatic and ambient temperatures, the angle difference caused by the internal components of the low-voltage power terminal is greatly different, which greatly reduces the measurement accuracy. [0003] According to statistics, the maximum change of the angular difference...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/04
CPCG01R35/04
Inventor 刘校峰叶孟军戴银斌
Owner NINGBO SANXING MEDICAL & ELECTRIC CO LTD
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