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10kV distribution network high-voltage metering device based on electronic-type sensor

A high-voltage metering and electronic technology, applied in the field of electric power, can solve the problems of large volume, easy saturation, low precision, etc., and achieve the effect of high precision, difficult saturation, and wide measurement range

Pending Publication Date: 2017-03-22
南京新联电力自动化有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the high-voltage metering device in the prior art is based on the current and voltage signal of the line collected by the electromagnetic voltage and current transformer, which has the problems of large volume, low precision, and easy saturation

Method used

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  • 10kV distribution network high-voltage metering device based on electronic-type sensor
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  • 10kV distribution network high-voltage metering device based on electronic-type sensor

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Embodiment Construction

[0028] In order to better understand the present invention, we will further elaborate the present invention below in conjunction with specific examples.

[0029] like figure 1 As shown, the 10kv distribution network high-voltage metering device in the present invention is connected to the output end of the electronic sensor, and the measuring unit is connected to the voltage and current signal interface of the electronic sensor, and the small signal of 1.876v output by the primary side electronic voltage transformer Further conditioning to form a 0.2v signal, while further conditioning the 1v small signal output by the primary side electronic current transformer to form a 0.2v signal, and conditioning this 0.2v single-ended small signal into a complete differential signal input to the metering circuit, And output to the data processing unit through the pulse output circuit, after being processed by the CPU core circuit, the data is connected to the power distribution automatio...

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Abstract

The invention relates to the power field, especially relates to the technical field of power equipment, and specifically relates to a 10kV distribution network high-voltage metering device based on an electronic-type sensor. The device comprises a measurement unit, a data processing unit and a communication unit, wherein the measurement unit mainly consists of a signal conditioning circuit, a metering circuit, and a pulse output circuit. The device takes the electronic-type sensor disposed in 10kV distribution network equipment as the signal conversion equipment, and is substantially different from a metering device which takes a conventional electromagnetic mutual inductor as signal conversion equipment. Compared with the prior art, the device can achieve the functions of high-voltage electric energy metering and real-time monitoring at equipment nodes of a 10kV distribution network, such as a segmented node, branch nodes, a column switch and a ring main unit, and provides essential data for the analysis of high-voltage line loss.

Description

technical field [0001] The invention relates to the field of electric power, in particular to the technical field of electric power equipment, in particular to a high-voltage metering device for a 10kv distribution network based on an electronic sensor. Background technique [0002] The 10kv distribution network high-voltage metering device is an important part of the distribution automation system. It is mainly used in 10kv distribution network overhead and cable lines to realize 10kv distribution line segmentation points, branch points, column switches, ring network cabinets and other equipment The high-voltage electric energy metering and real-time monitoring functions at the nodes provide basic data for the refined line loss management of 10kv distribution lines. [0003] At present, the high-voltage metering device in the prior art is based on the electromagnetic voltage and current transformer to collect the current and voltage signals of the line, which has the prob...

Claims

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Application Information

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IPC IPC(8): G01R22/06
CPCG01R22/06
Inventor 孙祯琨姜海涛朴军海花榕泽帅富强丁俊杰藤斌斌韩新新
Owner 南京新联电力自动化有限公司
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