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Method for determining power consumption in an electrical installation, and alternating-current electrical installation

一种电力装置、电流的技术，应用在通过电流/电压进行电功率测量、测量电流/电压、测量装置等方向，能够解决可用空间缺乏、增加仪表、阻碍等问题

Active Publication Date: 2014-11-05
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Power consumption meters are expensive and bulky
When it is desired to be able to monitor several individual power consumptions within an installation, the additional cost of adding a consumption meter ensues and can constitute a real impediment to establishing a truly individual consumption monitoring system
Also the lack of space available in many common switchboards currently installed in private dwellings may hinder the possibility of such additional metering

Method used

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  • Method for determining power consumption in an electrical installation, and alternating-current electrical installation
  • Method for determining power consumption in an electrical installation, and alternating-current electrical installation
  • Method for determining power consumption in an electrical installation, and alternating-current electrical installation

Examples

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Embodiment Construction

[0058] A power device 1 suitable for implementing the method according to the invention is shown in figure 1 in. For clarity, yes figure 1 To simplify, some traditional sub-components are omitted. In particular, only the phase line is shown, but the neutral line is not shown.

[0059] The power device 1 may belong to the final consumer, and be located in a building or a building where there are several different loads to be powered and power distribution, like a residential building or an office building. Such an electric device 1 may be an electric device of a private house or an electric device of a residential apartment.

[0060] The sinusoidal alternating current 2 is supplied to the power device 1 through the connection 3 and the power source, which may be a public distribution network.

[0061] There are several feeders connected to the incoming line 3. Each of them forms part of one of several branch lines 4 suitable for parallel connection with the load 5 to be supplied....

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Abstract

According to the invention, a group comprising a plurality of individual distribution branches connected in parallel is connected to an alternating-current power supply. The method comprises the following steps in which: a) detection of a change in the electrical consumption of one specific branch among the branches; and b) determination of the individual power consumption of the specific branch, based on a measurement of the total voltage (U), which is substantially constant during the change, measurements of the intensity and phase shift values (IA, IB, PsiAlpha, PsiBeta) of the total current before and after the change, and measurements of the intensities (l3A, I3B) of the individual current in the specific branch before and after the change.

Description

Technical field [0001] The present invention relates to a method for determining power consumption in a power device, in which a group of several separate distribution branches connected in parallel are connected to an AC power source. The method involved has a type of actions that include timely measurement of the total supply voltage of the group of several branch lines, and the measurement of the strength and phase shift value of the total supply current of the group, and record their measured values. [0002] The present invention also relates to including a group of several separate distribution branches connected in parallel, and is designed to measure the total supply voltage of the group of several branches in time, and the measurement of the strength and phase shift value of the total supply current of this group and recording them The measured value of the monitoring system is the type of AC power device. Background technique [0003] Private individuals like other econo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R21/06G01R21/133
CPCG01R21/06G01R19/2513G01R21/133G06Q50/06G06F11/3062
Inventor M.布鲁尔
Owner SCHNEIDER ELECTRIC IND SAS
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