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High-voltage direct metering device

A metering device, direct technology, applied in the direction of measuring device, electric power measurement through current/voltage, electric variable measurement, etc., can solve the problems of large structure, poor accuracy, hidden danger of electricity theft, etc., achieve small size, avoid electric shock danger, Avoid the effect of electricity theft

Inactive Publication Date: 2010-09-15
HUBEI SHENGJIA ELECTRIC EQUIP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a high-voltage direct metering device, which is used to solve the defects of large structure and poor accuracy in obtaining current value and voltage value in the prior art, and the problem of hidden danger of electricity theft in practical application

Method used

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Embodiment Construction

[0046] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0047] see figure 1 As shown, it is a functional structural block diagram of the high-voltage direct metering device of the present invention. In order to realize the purpose of preventing electricity theft, the collection of voltage and current signals on the power line L and the calculation of the electric energy value are completely set on the high-voltage line L, and only the The corresponding user-end receiving device is set at a place where the user can safely receive, so that the user can only know the current electric energy value, but cannot touch the corresponding collection and measurement parts, which greatly reduces the hidden danger of electricity theft ; At the same time, it is necessary to overcome the hidden danger of inaccurate measurement that may be caused by the measurement device due ...

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Abstract

The invention relates to a high-voltage direct metering device which is attached to a high voltage power-line. The metering device comprises a voltage acquisition unit, a current acquisition unit, a first processing unit, a second processing unit and a transmitting circuit, wherein the voltage acquisition unit is used to directly acquire a first voltage signal from the power-line; the current acquisition unit is used to directly acquire a second voltage signal representing the real-time current value from the power-line; the first processing unit is used to receive the first voltage signal and the second voltage signal, change the signals to real-time voltage value and current value to convert to instantaneous power value, integrate the instantaneous value in a first preset time and output a first energy value signal; the second processing unit is used to receive the first energy value signal to accumulate and form a second energy value signal and transmit the second energy value signal every second preset time; and the transmitting circuit is used to receive the second energy value signal and transmit to a user-side receiving device.

Description

technical field [0001] The invention relates to a high-voltage direct metering device, in particular to a high-voltage direct metering device attached to a high-voltage power line to directly measure the power consumption of each phase line and transmit it to a remote user-end receiving device device. Background technique [0002] High-voltage metering is the most important part of power metering technology. Various technologies emerge in endlessly. Its research direction mainly focuses on the following two points. The first point is how to collect the current value and voltage value on the high-voltage line; the second point is how to prevent Stealing happens. [0003] For the first point, the current customary method is to use independent current transformers and voltage transformers to obtain voltage and current values ​​respectively; however, it is necessary to keep a certain distance from each other during installation to prevent mutual electromagnetic interference. S...

Claims

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Application Information

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IPC IPC(8): G01R22/00G01R21/06
Inventor 万家盛
Owner HUBEI SHENGJIA ELECTRIC EQUIP
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