Unlock instant, AI-driven research and patent intelligence for your innovation.

A Segmental Compensation Method for Energy Meter Errors

An error compensation and compensation method technology, applied in the measurement of electrical variables, measuring devices, instruments, etc., can solve problems such as the inability to guarantee the accuracy of the electric energy meter and the inconsistency of the electric energy meter, so as to avoid errors and improve the accuracy.

Active Publication Date: 2018-03-20
NINGBO SANXING MEDICAL & ELECTRIC CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, single-point calibration is mainly used in the error correction of electric energy meters, that is, only point Ib (calibration current) is corrected. The method cannot guarantee the accuracy of the energy meter measurement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Segmental Compensation Method for Energy Meter Errors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] A kind of electric energy meter error segmental compensation method of the present invention, step 1: take an electric energy meter, when concrete implementation, we have selected a kind of electric energy meter of 260V 5 (60) A, the measuring range of electric energy meter is set to Divide into several intervals in the form of segment points, among them, take an electric energy meter, divide the measurement range of the electric energy meter into several intervals in the form of setting segment points, among them, take 5% of the calibration current as the first interval Segment point, take 600% of the calibration current as the second segment point;

[0015] Step 2: Define the range from 0 to 5% of the rated current as the small current range, define the range from 5% of the rated current to 600% of the rated current as the medium current range, and transfer the 600% rated current to the energy meter The range of the maximum rated current is defined as the high current...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a segmental error compensation method for an electric energy meter, which divides the metering range of the electric energy meter into several intervals in the form of setting segment points, and uses the interval error compensation method to perform error compensation on the electric energy meter. The advantage is that the interval error compensation method is adopted to improve the measurement accuracy of the electric energy meter.

Description

technical field [0001] The invention relates to a segmental compensation method for electric energy meter errors. Background technique [0002] In the design of electric energy meters, the accuracy of electric energy meter measurement is the key index, which is mainly reflected in the error accuracy. Due to the non-linearity of the sampling components of the electric energy meter (for example, the current transformer cannot guarantee that the angular difference of the entire dynamic range is completely consistent), within the current range from 0 to Imax, there will be tailing phenomenon at low and high currents, as listed in Table 1 It is the ideal error of 260V 5 (60) A (the range of the test current in Table 1 is 0.01Ib to Imax). At present, single-point calibration is mainly used in the error correction of electric energy meters, that is, only point Ib (calibration current) is corrected. The method cannot guarantee the accuracy of the energy meter measurement. [0003...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/04
Inventor 刘俊胡志刚
Owner NINGBO SANXING MEDICAL & ELECTRIC CO LTD