CN206223859U - A kind of high-voltage fence on-line overvoltage monitor - Google Patents
A kind of high-voltage fence on-line overvoltage monitor Download PDFInfo
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- CN206223859U CN206223859U CN201621353982.3U CN201621353982U CN206223859U CN 206223859 U CN206223859 U CN 206223859U CN 201621353982 U CN201621353982 U CN 201621353982U CN 206223859 U CN206223859 U CN 206223859U
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- voltage
- signal
- microsystem
- acquisition unit
- data acquisition
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Abstract
The utility model discloses a kind of high-voltage fence on-line overvoltage monitor, including voltage check device, voltage check device includes condenser-type terminal and voltage sensor, the output end of voltage check device is electrically connected by input of the optical fiber isolation transmitter respectively with signal conditioning circuit and triggers circuit, the output end of signal conditioning circuit and triggers circuit is electrically connected with the input of data acquisition unit, the signal output part of data acquisition unit is electrically connected with the signal input part of microsystem, the signal output part of microsystem is connected with acoustic-optic alarm and the webserver；Also include uninterrupted power source, uninterrupted power source is respectively data acquisition unit and microsystem provides power supply, uninterrupted power source is electrically connected by isolating transformer with optical fiber isolation transmitter, and the utility model can effectively solve the problems such as existing apparatus cannot accurately be monitored in real time, data-handling capacity is not enough, remote monitoring inconvenient and pre-alerting ability is not enough.
Description
Technical field
The utility model is related to high pressure to monitor field, more specifically to a kind of high-voltage fence overvoltage on-line monitoring
Device.
Background technology
With the rapid construction and development of China's super-pressure bulk power grid, the internal overvoltage influence to electric power netting safe running day
It is beneficial notable.Overvoltage type in power system is varied, its producing cause and endanger also different, exterior overvoltage master
Refer to atmospheric over-voltage, its wave head is steep, amplitude is high, be the one of the main reasons for causing power system insulation accident.It is internal excessively electric
Although pressure amplitude is not very high, its duration, the same insulation to electrical equipment more long constituted serious threat.By mistake
Voltage on-line monitoring system, understands its influence to line voltage in the situation and generating process of overvoltage before and after accident occurs
Accurate data, for technical staff's analysis cause of accident provides reliable basis.
Traditional over-voltage measurement register instrument cannot undertake the on-line monitoring task of overvoltage, because they catch interior
The synchronizing capacity of overvoltage transient waveform is very weak, and certainty of measurement or frequency response are poor.It is existing it is automatic be monitored with data
Reason on-line overvoltage monitor is concentrated mainly on the monitoring to power distribution network over-voltage, and high pressure point is commonly used in over-voltage monitoring field
Depressor obtains voltage signal, and high-voltage bleeder simple structure, certainty of measurement is higher, transient response characteristic is good, but, when requiring
When divider is parallel to voltage class system higher, there is that poor reliability, higher and impedance matching of generating heat are poor etc. a series of to ask
Topic, and existing apparatus are limited for the disposal ability of overvoltage signal, it is impossible to it is enough accurately in real time to notify overvoltage signal
Staff, can not remotely carry out the monitoring of system.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of high-voltage fence on-line overvoltage monitor, the mistake
Voltage on-Line Monitor Device can effectively solve existing apparatus cannot accurately be monitored in real time, data-handling capacity not
The problems such as foot, remote monitoring inconvenience and not enough pre-alerting ability.
In order to achieve the above object, the utility model provides following technical scheme：
A kind of high-voltage fence on-line overvoltage monitor, including voltage check device, the voltage check device include
Condenser-type terminal and voltage sensor, the output end of the condenser-type terminal are electrically connected with the input of the voltage sensor,
The output end of the voltage check device by optical fiber isolation transmitter respectively with signal conditioning circuit and triggers circuit
Input is electrically connected, and the output end of the signal conditioning circuit and triggers circuit is electrically connected with the input of data acquisition unit
Connect, the signal output part of the data acquisition unit is electrically connected with the signal input part of microsystem, the letter of the microsystem
Number output end is connected with acoustic-optic alarm and the webserver；Also include uninterrupted power source, the uninterrupted power source is respectively
Data acquisition unit and microsystem provide power supply, and the uninterrupted power source isolates transmission with optical fiber by isolating transformer
Device is electrically connected.
Preferably, the data acquisition unit uses data collecting card.
Preferably, the signal conditioning circuit includes voltage follower and active low-pass filter circuit, the voltage follow
The output end of device is connected with the input of active low-pass filter circuit.
Preferably, the microsystem is industrial computer.
Preferably, the industrial computer has network communication module.
According to above-mentioned technical scheme, it is recognised that by being arranged in transformer output end in the utility model
Condenser-type terminal and voltage sensor obtain equipment as overvoltage signal so that the installation of the system is without additionally increasing once
The input of equipment, difficulty of construction is greatly reduced, and installs more handy and safe, meanwhile, the voltage signal that voltage sensor gets
Signal conditioning circuit and triggers circuit are sent to by optical fiber isolation transmitter, optical fiber isolation transmitter makes divider
Voltage signal in low-voltage arm reverts to voltage again by electrical to optical converter, the optical fiber of good insulator, optical-electrical converter to be believed
Number, with reach instantaneous high potential issuable to high-voltage capacitive divider earth point (being sayed to the big ground of infinity) every
From, extraordinary isolation effect has been reached, improve the security of system；And the utility model uses special triggers circuit
To realize the triggering of data acquisition unit, with sensitivity higher and frequency response characteristic, realize and power network overvoltage is believed
Number Real-time Collection, meet monitoring power system exterior overvoltage and internal overvoltage requirement；Finally due to microcomputer system
System, acoustic-optic alarm and the webserver, when microsystem detects the overvoltage in high-voltage fence, control sound and light alarm dress
Put and send alarm, can effectively remind staff, while in overvoltage signal being uploaded into the webserver, distal end
Staff passes through access network services device, it is possible to achieve long-range condition monitoring.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is composition structured flowchart of the present utility model；
Fig. 2 is the circuit theory diagrams of signal conditioning circuit in the utility model；
Wherein, marked in accompanying drawing as follows：
1- uninterrupted power sources, 2- voltage check devices, 21- condenser-type terminals, 22- voltage sensors, 3- isolating transformers,
4- optical fiber isolation transmitters, 5- signal conditioning circuits, 51- voltage followers, 52- active low-pass filter circuits, 6- triggerings
Circuit, 7- data acquisition units, 8- microsystems, 9- acoustic-optic alarms, the 10- webservers.
Specific embodiment
The utility model embodiment discloses a kind of high-voltage fence on-line overvoltage monitor, overvoltage on-line monitoring
Device can effectively solve that existing apparatus cannot accurately be monitored in real time, data-handling capacity is not enough, remote monitoring not
The problems such as convenient and pre-alerting ability is not enough.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Fig. 1-2 is referred to, Fig. 1 is composition structured flowchart of the present utility model, and Fig. 2 is signal condition electricity in the utility model
The circuit theory diagrams on road 5.
In a specific embodiment of the present utility model, a kind of high-voltage fence on-line overvoltage monitor, such as Fig. 1 institutes
Show, including voltage check device 2, voltage check device 2 includes condenser-type terminal 21 and voltage sensor 22, condenser-type terminal 21
Output end electrically connected with the input of voltage sensor 22, condenser-type terminal 21 is most normal in current high pressure, extra high voltage system
Barrel forms, voltage sensor 22 is installed on the end shield of condenser-type terminal 21 close to flange, directly from condenser-type terminal 21
End shield tap at obtain high voltage bus overvoltage signal.
The output end of voltage check device 2 by optical fiber isolation transmitter 4 respectively with signal conditioning circuit 5 and triggering
The input electrical connection of circuit 6, the output end of signal conditioning circuit 5 and triggers circuit 6 with the input of data acquisition unit 7
Electrical connection.The voltage signal entering signal modulate circuit 5 that optical fiber isolation transmitter 4 is obtained is processed.Signal condition electricity
Road 5 includes voltage follower 51 and active low-pass filter circuit 52, and signal enters after the impedance of voltage follower 51 is isolated to be had
Source low-pass filter circuit 52, filters the high-frequency noise for mixing in the signal, circuit theory diagrams such as Fig. 2 institutes of signal conditioning circuit 5
Show.
Data acquisition unit 7 uses data collecting card, data collecting card to support the A/D conversions of high speed, and with higher
Switching rate ensure that the picking rate of data；The signal output part of data acquisition unit 7 and the signal input of microsystem 8
End electrical connection, the signal output part of microsystem 8 is connected with acoustic-optic alarm 9 and the webserver 10, wherein microsystem 8
It is the industrial computer with network communication module.
The monitoring device also includes uninterrupted power source 1, and uninterrupted power source 1 is UPS, and uninterrupted power source 1 is respectively data and adopts
Collection unit 7 and microsystem 8 provide power supply, and uninterrupted power source 1 is by isolating transformer 3 and the electricity of optical fiber isolation transmitter 4
Connection provides power supply for it, it is ensured that the power supply of monitoring device important devices and reliably working.
According to above-mentioned technical scheme, it is recognised that by being arranged in transformer output end in the utility model
Condenser-type terminal 21 and voltage sensor 22 obtain equipment as overvoltage signal so that the installation of the system is without additionally increasing
The input of primary equipment, difficulty of construction is greatly reduced, and installs more handy and safe, meanwhile, the electricity that voltage sensor 22 gets
Pressure signal sends signal conditioning circuit 5 and triggers circuit 6, optical fiber isolation transmission to by optical fiber isolation transmitter 4
Device 4 makes the voltage signal in divider low-voltage arm extensive again by electrical to optical converter, the optical fiber of good insulator, optical-electrical converter
Voltage signal is answered into, to reach instantaneous high potential issuable to high-voltage capacitive divider earth point (to the earth of infinity
Face say) isolation, reached extraordinary isolation effect, improve the security of system；And the utility model is using special
Triggers circuit 6 realize the triggering of data acquisition unit 7, with sensitivity higher and frequency response characteristic, it is right to realize
The Real-time Collection of power network overvoltage signal, meets the requirement of monitoring power system exterior overvoltage and internal overvoltage；It is last by
In with microsystem 8, acoustic-optic alarm 9 and the webserver 10, microsystem 8 detects the overvoltage in high-voltage fence
When, control acoustic-optic alarm 9 sends alarm, staff can be effectively reminded, while can upload to overvoltage signal
In the webserver 10, the staff of distal end passes through access network services device 10, it is possible to achieve long-range condition monitoring.
Also, it should be noted that herein, such as first and second or the like relational terms are used merely to one
Entity or operation make a distinction with another entity or operation, and between not necessarily requiring or implying these entities or operate
There is any this actual relation or order.And, term " including ", "comprising" or its any other variant be intended to contain
Lid nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.Various modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can in other embodiments be realized in the case where spirit or scope of the present utility model are not departed from.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (5)
1. a kind of high-voltage fence on-line overvoltage monitor, it is characterised in that including voltage check device, the voltage detecting
Device includes condenser-type terminal and voltage sensor, the input of the output end of the condenser-type terminal and the voltage sensor
Electrical connection, the output end of the voltage check device by optical fiber isolation transmitter respectively with signal conditioning circuit and triggering
The input electrical connection of circuit, the output end of the signal conditioning circuit and triggers circuit with the input of data acquisition unit
Electrical connection, the signal output part of the data acquisition unit is electrically connected with the signal input part of microsystem, the microsystem
Signal output part be connected with acoustic-optic alarm and the webserver；Also include uninterrupted power source, the uninterrupted power source point
Not for data acquisition unit and microsystem provide power supply, the uninterrupted power source is isolated by isolating transformer with optical fiber
Transmitter is electrically connected.
2. a kind of high-voltage fence on-line overvoltage monitor as claimed in claim 1, it is characterised in that the data acquisition
Unit uses data collecting card.
3. a kind of high-voltage fence on-line overvoltage monitor as claimed in claim 1, it is characterised in that the signal condition
Circuit includes voltage follower and active low-pass filter circuit, the output end and active low-pass filter circuit of the voltage follower
Input connection.
4. a kind of high-voltage fence on-line overvoltage monitor as claimed in claim 1, it is characterised in that the microsystem
It is industrial computer.
5. a kind of high-voltage fence on-line overvoltage monitor as claimed in claim 4, it is characterised in that the industry control equipment
There is network communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621353982.3U CN206223859U (en) | 2016-12-05 | 2016-12-05 | A kind of high-voltage fence on-line overvoltage monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621353982.3U CN206223859U (en) | 2016-12-05 | 2016-12-05 | A kind of high-voltage fence on-line overvoltage monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206223859U true CN206223859U (en) | 2017-06-06 |
Family
ID=58785107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621353982.3U Expired - Fee Related CN206223859U (en) | 2016-12-05 | 2016-12-05 | A kind of high-voltage fence on-line overvoltage monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206223859U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111722061A (en) * | 2020-07-01 | 2020-09-29 | 上海恒敬电力科技有限公司 | But early warning device of remote monitoring power distribution station overvoltage operation |
| CN115825527A (en) * | 2022-12-12 | 2023-03-21 | 江苏靖江互感器股份有限公司 | LC compatible voltage sensor |
-
2016
- 2016-12-05 CN CN201621353982.3U patent/CN206223859U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111722061A (en) * | 2020-07-01 | 2020-09-29 | 上海恒敬电力科技有限公司 | But early warning device of remote monitoring power distribution station overvoltage operation |
| CN115825527A (en) * | 2022-12-12 | 2023-03-21 | 江苏靖江互感器股份有限公司 | LC compatible voltage sensor |
| CN115825527B (en) * | 2022-12-12 | 2023-11-21 | 江苏靖江互感器股份有限公司 | LC compatible voltage 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: 20170606 Termination date: 20171205 |