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Electric energy metering equipment calibration method and device

A kind of electric energy metering equipment and technology of metering equipment, applied in the field of calibration, can solve the problem that the electric energy metering equipment cannot be calibrated and maintained, and achieve the effect of avoiding low accuracy

Active Publication Date: 2018-01-19
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a calibration method and device for electric energy metering equipment to at least solve the problem in the prior art that electric energy metering equipment cannot be calibrated and maintained after leaving the factory

Method used

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  • Electric energy metering equipment calibration method and device
  • Electric energy metering equipment calibration method and device
  • Electric energy metering equipment calibration method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] An embodiment of the present invention provides a method for calibrating electric energy metering equipment. The executor of this embodiment may be a calibration device, and the calibration device may be a server or a portable calibration device. figure 1 It is a flowchart of the calibration method of the electric energy metering device according to Embodiment 1 of the present invention.

[0026] Step S110, receiving the energy data reported by the electric energy metering equipment.

[0027] Electric energy metering equipment is used to measure electric energy. For example: the electric energy metering device is a household electric meter.

[0028] Energy data include but not limited to: voltage, current, active power, reactive power, apparent power, forward and reverse active energy, forward and reverse reactive energy, power factor, angle between voltage, angle between current, voltage and current Unbalance, voltage and current peak and demand.

[0029] The elect...

Embodiment 2

[0045] This embodiment provides a more specific calibration method for electric energy metering equipment. figure 2 It is a flow chart of the calibration method of the electric energy metering device according to Embodiment 2 of the present invention.

[0046] Step S210, after the electric energy metering device enters the calibration mode, adjust the load state of the electric energy metering device according to the prestored load data corresponding to the standard data.

[0047] The load data corresponding to the standard data is the state of the load connected to the electric energy metering device when measuring the energy data (standard data) of the electric energy metering device in a normal state.

[0048] Measure the standard data when the electric energy metering device is used for the first time, report the standard data and the load data of the electric energy metering device to the calibration device, and the calibration device will store the standard data and loa...

Embodiment 3

[0066] This embodiment provides a more specific calibration method for electric energy metering equipment.

[0067] image 3 It is a flow chart of a calibration method for an electric energy metering device according to Embodiment 3 of the present invention.

[0068] Step S310, after the electric energy metering device enters the calibration mode, adjust the input parameters of the electric energy metering device to preset values.

[0069] When measuring standard data, the value of the input parameter of the electric energy metering device can be recorded, and when calibrating, the input parameter of the electric energy metering device is adjusted to this value again.

[0070] In this embodiment, preferably, both the input voltage and the input current of the electric energy metering device are adjusted to zero. If the input voltage and input current of the electric energy metering device are both zero, the energy data of the electric energy metering device should also be ze...

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Abstract

The invention discloses an electric energy metering equipment calibration method and device; the method comprises the following steps: receiving energy data reported by the electric energy metering equipment; comparing the energy data with pre-stored standard data; calibrating the electric energy metering equipment if the energy data is different from the standard data. The method solves the problems that the existing electric energy metering equipment cannot be calibrated and maintained after leaving the factory.

Description

technical field [0001] The invention relates to the technical field of calibration, in particular to a calibration method and device for electric energy metering equipment. Background technique [0002] With the continuous improvement of the level of industrialization, the monitoring and analysis of energy has become more and more important nowadays. To ensure the accuracy of monitoring and analysis is to ensure the accuracy of electric energy metering equipment. Therefore, the accuracy of electric energy metering equipment Calibration is very important. [0003] At present, the energy metering equipment used is often only calibrated before leaving the factory. After leaving the factory, users cannot accurately judge whether the energy metering equipment needs to be calibrated. Moreover, if there is an obvious abnormality in the energy metering equipment, it is difficult for the user to calibrate the energy metering equipment. Although the calibration auxiliary circuit is b...

Claims

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Application Information

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IPC IPC(8): G01R35/04
Inventor 邓军吴文豪林宝伟文武任鹏
Owner GREE ELECTRIC APPLIANCES INC
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