CN206147001U - 10kV joins in marriage net height and presses metering device based on electronic type sensor - Google Patents
10kV joins in marriage net height and presses metering device based on electronic type sensor Download PDFInfo
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- CN206147001U CN206147001U CN201620697293.8U CN201620697293U CN206147001U CN 206147001 U CN206147001 U CN 206147001U CN 201620697293 U CN201620697293 U CN 201620697293U CN 206147001 U CN206147001 U CN 206147001U
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- circuit
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- metering device
- metering
- electronic sensor
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Abstract
The utility model relates to an electric power field especially relates to power equipment technical field, is particularly to relate to a 10kV joins in marriage net height and presses metering device based on electronic type sensor, including measuring unit, data processing unit and communication unit, wherein measuring unit mainly comprises signal conditioning circuit, metering circuit, pulse output circuit. The utility model discloses a based on 10kV join in marriage be equipped with in the net equipment use the electronic type sensor as signal converting apparatus's high -pressure metering device, have the essential distinction with traditional electromagnetic type mutual -inductor that uses by the metering device of signal converting apparatus matching. Compared with the prior art, the utility model discloses the high -tension electricity energy measurement and the real -time supervision function of equipment nodes such as 10kV distribution lines segmentation point, branch point, column switch, looped netowrk cabinet can be realized, essential data is provided for high -pressure line loss assay.
Description
Technical field
The present invention relates to power domain, more particularly to electrical equipment technical field, in particular to one kind are based on
The 10kV distribution high-voltage meters of electronic sensor.
Background technology
10kV distribution high-voltage meters are the important component parts for realizing electrical power distribution automatization system, and which is mainly used in
10kV distributions are maked somebody a mere figurehead and cable run, realize the equipment sections such as 10kV distribution line waypoints, branch point, on-pole switch, ring main unit
High-tension electricity energy meter and real time monitoring function at point, provides basic data for the 10kV distribution lines Controlling line loss that becomes more meticulous.
High-voltage meter in currently available technology is the electric current that circuit is gathered based on electromagnetic type voltage current transformer
Voltage signal, which has that volume is big, precision is low, is easily saturated.Matched, in current existing traditional approach
In, the signal converting apparatus that 10kV distribution net equipments are equipped with is electromagnetic transformer.10kV is changed into by electromagnetic potential transformer
Current signal 600A is changed into the current signal of 5A or 1A for 100V voltage signals, electromagnetic type current sensor.
The content of the invention
The purpose of the present invention is to realize that the current and voltage signals for gathering circuit based on electronic sensor complete to measure purpose,
So as to substitute traditional scheme, realize the optimization fusion of controller switching equipment one or two times, and have small volume, high precision, measurement range width,
It is difficult the advantage of saturation.
In order to realize this purpose, the invention provides a kind of 10kV distributions high pressure measurement based on electronic sensor is filled
Put, including measuring unit, data processing unit and communication unit, wherein measuring unit is mainly by signal conditioning circuit, metering electricity
Road, impulse output circuit composition；Wherein signal conditioning circuit realizes the translation function of electronic sensor secondary side signal.
Particularly, signal conditioning circuit is that 10kV is changed into the little of 1.876V to primary side electronic type voltage transformer
Signal further nurses one's health into the signal of the 0.2V for meeting metering circuit requirement, while will to primary side electronic current mutual inductor
600A is changed into the small-signal of 1V and further nurses one's health into the signal for meeting metering circuit requirement 0.2V, and by the single-ended little letter of 0.2V
Number fully differential signal input is nursed one's health into metering circuit.
Wherein primary side voltage transformer is utilized respectively electric resistance partial pressure principle and low-power consumption coil realizes that voltage, electric current turn
Become.
Used as a kind of preferred version, metering circuit adopts computation chip 7022E.Using this professional other metering core
Piece, it is possible to achieve high-precision measuring.
Meanwhile, preferably impulse output circuit is exported by the way of Phototube Coupling, so that it is guaranteed that output safety.
Further, our preferably described data processing units include core cpu circuit, power circuit, storage circuit.
Preferably, power circuit is exported for two-way independent isolating.So that it is guaranteed that the independence of modules, prevents
Interference.
Also, preferably described communication unit includes RS485 interface circuits, RS232 interface circuits.
Used as a kind of preferred version, the data processing unit is that continuous data is passed through DL/T 634.5101-2002
Host-host protocol accesses the data processing unit of electrical power distribution automatization system.
The present invention is based on the high-pressure gauge with electronic sensor as signal converting apparatus being equipped with 10kV distribution net equipments
Amount device, has essential distinction with electromagnetic transformer by the metering device that signal converting apparatus is matched with traditional.
Compared with prior art, the invention has the advantages that：
1. the high pressure being capable of achieving at the device nodes such as 10kV distribution line waypoints, branch point, on-pole switch, ring main unit
Electrical energy metering and real time monitoring function, provide basic data for high-voltage line loss analysis.
2. measuring unit is realized docking with the voltage and current signal of electronic sensor, high precision, measurement range width, no
Easy saturation.
3. data processing unit supports 634.5101-2002 host-host protocols of DL/T, makes electrical energy metering data and distribution
Automatization's main station system slitless connection.
Description of the drawings
Fig. 1 is the principle schematic of the present invention.
Fig. 2 is measuring unit-signal conditioning circuit figure.
Fig. 3 is measuring unit-metering circuit figure.
Fig. 4 is measuring unit-impulse output circuit figure.
Fig. 5 is data processing unit-core cpu circuit diagram.
Fig. 6 is data processing unit-power circuit diagram.
Fig. 7 is data processing unit-storage circuit figure.
Fig. 8 is communication unit-RS485 interface circuit figures.
Fig. 9 is communication unit RS232 interface circuit figures.
Specific embodiment
In order to be better understood from the present invention, below we in conjunction with specific embodiments the present invention is further explained
State.
As shown in figure 1,10kV distributions high-voltage meter is the outfan for being connected to electronic sensor in the present invention, measurement
Unit is docked with the voltage and current signal interface of electronic sensor, and to the output of primary side electronic type voltage transformer
The small-signal of 1.876V is further nursed one's health to form 0.2V signals, while the 1V's exported to primary side electronic current mutual inductor is little
Signal is further nursed one's health to form 0.2V signals, and the single-ended small-signal of this 0.2V is nursed one's health into fully differential signal input to meter
Amount circuit, and exported to data processing unit by impulse output circuit, Jing after core cpu processing of circuit, data are via communication
RS485 interface circuits, RS232 interface circuits in unit, accesses distribution certainly by 634.5101-2002 host-host protocols of DL/T
Dynamicization system, by electrical energy metering data transfer to power distribution automation main station system.
, referring to Fig. 2, referring to Fig. 3, measurement is single for measuring unit-metering circuit figure for wherein measuring unit-signal conditioning circuit figure
, referring to Fig. 4, data processing unit-core cpu circuit diagram is referring to Fig. 5, data processing unit-power supply for unit-impulse output circuit figure
Circuit diagram referring to Fig. 6, data processing unit-storage circuit figure referring to Fig. 7, communication unit-RS485 interface circuit figures referring to Fig. 8,
Communication unit RS232 interface circuit figures are referring to Fig. 9.
Claims (3)
1. a kind of 10kV distribution high-voltage meters based on electronic sensor, is characterized in that, at measuring unit, data
Reason unit and communication unit, wherein measuring unit are mainly made up of signal conditioning circuit, metering circuit, impulse output circuit；Its
Middle signal conditioning circuit realizes the translation function of electronic sensor secondary side signal, and specifically, signal conditioning circuit is to once
The small-signal that 10kV is changed into 1.876V is further nursed one's health into and meets metering circuit requirement by side electronic type voltage transformer
The signal of 0.2V, while further nurse one's health into the small-signal that 600A is changed into 1V to primary side electronic current mutual inductor meeting
Metering circuit requires the signal of 0.2V, and the single-ended small-signal of 0.2V is nursed one's health into fully differential signal input to metering circuit.
2. the 10kV distribution high-voltage meters based on electronic sensor according to claim 1, is characterized in that, data
Processing unit includes core cpu circuit, power circuit, storage circuit.
3. the 10kV distribution high-voltage meters based on electronic sensor according to claim 1, is characterized in that, communication
Unit includes RS485 interface circuits, RS232 interface circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620697293.8U CN206147001U (en) | 2016-07-01 | 2016-07-01 | 10kV joins in marriage net height and presses metering device based on electronic type sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620697293.8U CN206147001U (en) | 2016-07-01 | 2016-07-01 | 10kV joins in marriage net height and presses metering device based on electronic type sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206147001U true CN206147001U (en) | 2017-05-03 |
Family
ID=58616466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620697293.8U Expired - Fee Related CN206147001U (en) | 2016-07-01 | 2016-07-01 | 10kV joins in marriage net height and presses metering device based on electronic type sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206147001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526308A (en) * | 2016-07-01 | 2017-03-22 | 南京新联电力自动化有限公司 | 10kV distribution network high-voltage metering device based on electronic-type sensor |
-
2016
- 2016-07-01 CN CN201620697293.8U patent/CN206147001U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526308A (en) * | 2016-07-01 | 2017-03-22 | 南京新联电力自动化有限公司 | 10kV distribution network high-voltage metering device based on electronic-type sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 Termination date: 20190701 |