CN205665367U - High pressure flashover monitoring devices - Google Patents
High pressure flashover monitoring devices Download PDFInfo
- Publication number
- CN205665367U CN205665367U CN201620578822.2U CN201620578822U CN205665367U CN 205665367 U CN205665367 U CN 205665367U CN 201620578822 U CN201620578822 U CN 201620578822U CN 205665367 U CN205665367 U CN 205665367U
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- high pressure
- monitoring device
- electrical
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Abstract
The utility model relates to a high pressure flashover monitoring devices, signal input interface (1) that includes electricity connection in proper order, signal sampling module (2), signal transmission module (3), signal comparison circuit (4), logical decision and control circuit (5), guard signal output circuit (6) and signal output interface (7), wherein, signal transmission module (3) are including electricity / light converting circuit (31), optic fibre (32) and light / electric converting circuit (33), electricity / light converting circuit (31) are connected with signal sampling module (2) electricity, light / electric converting circuit (33) is connected with signal comparison circuit (4) electricity, optic fibre (32) are connected between electricity / light converting circuit (31) and light / electric converting circuit (33), signal comparison circuit (4) are voltage signal comparison circuit. The utility model has the advantages that: not only protection value sets up simply to the erroneous judgement can not take place or lead to the test article to be punctured, convenient to use, the security is high moreover.
Description
Technical field
This utility model relates to field of power, specifically a kind of high pressure flashover monitoring device.
Background technology
Along the electric discharge of insulator surface flashover, then it is known as puncturing along the electric discharge within insulator.A lot of electromechanics set
Standby country's quality inspection when, need to ensure product to accomplish as far as possible and avoid flashover situation, puncture and more need to avoid, therefore
In the quality inspection equipment of high pressure voltage-withstand test, it is required to the function with flashover monitoring and protecting, and the speed of flashover monitoring
Playing again critical effect, it is determined that speed is the fastest, the speed of starting protection is the fastest, just can reduce the energy of electric discharge greatly,
Reduce the high pressure impact to equipment, it is to avoid destroy the generation of the punch-through of character.The high pressure flashover monitoring device of prior art
The monitoring method of overcurrent relay is usually taken, and its cardinal principle is when monitoring current is more than high pressure flashover monitoring device setting value
Time, i.e. judge product generation flashover, and send protection signal.There is three below not in the high pressure flashover monitoring device of said structure
In place of foot: be 1, to judge whether the virtual value of current signal exceedes the mode of protection value to judge that product is due to overcurrent relay
No flashover, but in practical operation, it is highly difficult that accurate protection value is set, different test device, different test article, if
The protection value put is the most different, if protection value arranges too small, then easily with normal overcurrent blurring and occur by mistake
Sentence, if but protection value arranges excessive, then and can easily cause test article breakdown；2, due to produced electricity when flashover occurs in product
Stream is relatively big, and overcurrent relay internal circuit is the mode using electric lead to connect, and therefore safety is poor；3, flashover is judged
Speed is relatively slow, needs hundreds of millisecond.
Utility model content
The technical problems to be solved in the utility model is to provide one not only protection value and arranges simply, from without occurring
Judge by accident or cause test article breakdown, easy to use, and the high pressure flashover monitoring device that safety is high.
For solving above-mentioned technical problem, this utility model provides the high pressure flashover monitoring device of a kind of following structure: bag
Include be sequentially connected electrically signal input interface, signal sampling module, signal transmission module, signal comparator circuit, logical judgment with
Control circuit, protection signal output apparatus and signal output interface, wherein, signal transmission module includes electrical/optical change-over circuit, light
Fibre and optical electrical change-over circuit, electrical/optical change-over circuit electrically connects with signal sampling module, and optical electrical change-over circuit compares electric with signal
Road electrically connects, and optical fiber is connected between electrical/optical change-over circuit and optical electrical change-over circuit, and signal comparator circuit is voltage signal ratio
Relatively circuit.
High pressure flashover monitoring device described in the utility model, wherein, high pressure flashover monitoring device also includes a switch
Circuit, on-off circuit is connected electrically between signal comparator circuit and logical judgment and control circuit.
High pressure flashover monitoring device described in the utility model, wherein, signal sampling module includes rectification circuit and filtering
Circuit, rectification circuit is connected electrically between signal input interface and filter circuit, and filter circuit is electrically connected with electrical/optical change-over circuit
Connect.
High pressure flashover monitoring device described in the utility model, wherein, the electric to optic converter part in electrical/optical change-over circuit
For infraluminescence diode.
High pressure flashover monitoring device described in the utility model, wherein, the optical electrical switching device in electrical/optical change-over circuit
Use the phototriode that model is 3DU80.
High pressure flashover monitoring device described in the utility model, wherein, the voltage comparator part in signal comparator circuit is adopted
Be model be the comparator of LM319N.
High pressure flashover monitoring device described in the utility model, wherein, logical judgment and the main control chip in control circuit
Use the PLD that model is EPM7064SLC44-10.
High pressure flashover monitoring device described in the utility model, wherein, the control chip in protection signal output apparatus is adopted
Be model be the photoelectric coupled device of 6N136.
Using after said structure, compared with prior art, this utility model has the advantage that 1 it is known that flashover
Although the process persistent period of electric discharge is shorter, but energy is big, can discharge the electric arc pulse of high pressure, high frequency in the short time, because of
Signal comparator circuit is set to voltage signal comparison circuit by this this utility model high pressure flashover monitoring device such that it is able to pass through
Setting voltage protection value, and take, detect the voltage protection value of the high pressure, hf electric arc pulse and the setting that produce when flashover occurs
Compare, judge product whether flashover with this, and this is not only able to be distinguished with normal overcurrent signal, thus
Effectively prevent the situation occurring to judge by accident or cause test article breakdown to occur, and utility model high pressure flashover monitoring device exists
After debugging of dispatching from the factory is qualified, voltage protection value i.e. sets complete, so that field personnel is without further according to different tests
Product and different voltage protection values is set, and then greatly facilitate the use of utility model high pressure flashover monitoring device；2, due to
Signal transmission module uses electrical/optical change-over circuit, optical fiber and optical electrical change-over circuit, electrical/optical change-over circuit and signal sampling
Module electrically connects, and optical electrical change-over circuit electrically connects with signal comparator circuit, and optical fiber is connected to electrical/optical change-over circuit and turns with optical electrical
Change between circuit, say, that utility model high pressure flashover monitoring device by the way of Phototube Coupling by complete for forward and backward level circuit
Full isolation reliably is got up, thus considerably increases the safety in utilization of utility model high pressure flashover monitoring device, it is ensured that existing
The life safety of field staff.
This utility model high pressure flashover monitoring device is arranged between signal comparator circuit and logical judgment and control circuit
The purpose of on-off circuit be the carrying load ability in order to improve this utility model high pressure flashover monitoring device.
The reason of the phototriode that the optical electrical switching device in electrical/optical change-over circuit uses model to be 3DU80 is: type
Number it is high speed device for the phototriode of 3DU80, therefore, it is possible to be greatly improved this utility model high pressure flashover monitoring device
Judge speed.
The reason of the comparator that the voltage comparator part in signal comparator circuit uses model to be LM319N is: model is
The comparator of LM319N is high speed device, therefore, it is possible to be greatly improved the judgement speed of this utility model high pressure flashover monitoring device
Degree.
Logical judgment and the main control chip in control circuit use model to be the programmable logic device of EPM7064SLC44-10
The reason of part is: model be the PLD of EPM7064SLC44-10 be high speed device, therefore, it is possible to be greatly improved this
The judgement speed of utility model high pressure flashover monitoring device.
The reason of the photoelectric coupled device that the control chip in protection signal output apparatus uses model to be 6N136 is: type
Number it is high speed device for the photoelectric coupled device of 6N136, therefore, it is possible to be greatly improved this utility model high pressure flashover monitoring device
Judgement speed.
Accompanying drawing explanation
Fig. 1 is the functional-block diagram of this utility model high pressure flashover monitoring device；
Fig. 2 is the detailed circuit diagram of this utility model high pressure flashover monitoring device.
Detailed description of the invention
With detailed description of the invention, this utility model high pressure flashover monitoring device is made the most below in conjunction with the accompanying drawings
Explanation.
As depicted in figs. 1 and 2, this utility model high pressure flashover monitoring device includes the signal input interface being sequentially connected electrically
1, signal sampling module 2, signal transmission module 3, signal comparator circuit 4, logical judgment and control circuit 5, protection signal output
Circuit 6 and signal output interface 7, signal transmission module 3 includes electrical/optical change-over circuit 31, optical fiber 32 and optical electrical change-over circuit
33, electrical/optical change-over circuit 31 electrically connects with signal sampling module 2, and optical electrical change-over circuit 33 electrically connects with signal comparator circuit 4,
Optical fiber 32 is connected between electrical/optical change-over circuit 31 and optical electrical change-over circuit 33, and signal comparator circuit 4 compares for voltage signal
Circuit, high pressure flashover monitoring device also includes an on-off circuit 8, and on-off circuit 8 is connected electrically in signal comparator circuit 4 and logic
Judge that signal sampling module 2 includes rectification circuit 21 and filter circuit 22, and rectification circuit 21 electrically connects between control circuit 5
Between signal input interface 1 and filter circuit 22, filter circuit 22 electrically connects with electrical/optical change-over circuit 31, electrical/optical conversion electricity
Electric to optic converter part in road 31 is infraluminescence diode, and the optical electrical switching device in electrical/optical change-over circuit 31 uses
Be model be the phototriode of 3DU80, it is LM319N's that the voltage comparator part in signal comparator circuit 4 uses model
Comparator, it is that the able to programme of EPM7064SLC44-10 is patrolled that logical judgment and the main control chip in control circuit 5 use model
Collecting device, the control chip in protection signal output apparatus 6 uses the photoelectric coupled device that model is 6N136, works as test
During product generation flashover, this utility model high pressure flashover monitoring device can send protection signal within the time less than 10 microseconds.
Above embodiment is only to be described preferred implementation of the present utility model, not to this utility model
Scope be defined, without departing from this utility model design spirit on the premise of, those of ordinary skill in the art are to this practicality
Various deformation that novel technical scheme is made and improvement, all should fall into the protection domain that this utility model claims determine
In.
Claims (8)
1. a high pressure flashover monitoring device, including the signal input interface (1) being sequentially connected electrically, signal sampling module (2), letter
Number transport module (3), signal comparator circuit (4), logical judgment and control circuit (5), protection signal output apparatus (6) and signal
Output interface (7), it is characterised in that: described signal transmission module (3) include electrical/optical change-over circuit (31), optical fiber (32) and light/
Power conversion circuit (33), described electrical/optical change-over circuit (31) electrically connects with signal sampling module (2), described optical electrical change-over circuit
(33) electrically connecting with signal comparator circuit (4), described optical fiber (32) is connected to electrical/optical change-over circuit (31) and optical electrical conversion electricity
Between road (33), described signal comparator circuit (4) is voltage signal comparison circuit.
High pressure flashover monitoring device the most according to claim 1, it is characterised in that: described high pressure flashover monitoring device is also wrapped
Including an on-off circuit (8), described on-off circuit (8) is connected electrically in signal comparator circuit (4) and logical judgment and control circuit
(5) between.
High pressure flashover monitoring device the most according to claim 1, it is characterised in that: described signal sampling module (2) includes
Rectification circuit (21) and filter circuit (22), described rectification circuit (21) is connected electrically in signal input interface (1) and filter circuit
(22), between, described filter circuit (22) electrically connects with electrical/optical change-over circuit (31).
4. according to the high pressure flashover monitoring device described in claim 1 or 2 or 3, it is characterised in that: described electrical/optical change-over circuit
(31) the electric to optic converter part in is infraluminescence diode.
5. according to the high pressure flashover monitoring device described in claim 1 or 2 or 3, it is characterised in that: described electrical/optical change-over circuit
(31) the optical electrical switching device in uses the phototriode that model is 3DU80.
6. according to the high pressure flashover monitoring device described in claim 1 or 2 or 3, it is characterised in that: described signal comparator circuit
(4) the voltage comparator part in uses the comparator that model is LM319N.
7. according to the high pressure flashover monitoring device described in claim 1 or 2 or 3, it is characterised in that: described logical judgment and control
Main control chip in circuit (5) uses the PLD that model is EPM7064SLC44-10.
8. according to the high pressure flashover monitoring device described in claim 1 or 2 or 3, it is characterised in that: described protection signal output electricity
Control chip in road (6) uses the photoelectric coupled device that model is 6N136.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620578822.2U CN205665367U (en) | 2016-06-13 | 2016-06-13 | High pressure flashover monitoring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620578822.2U CN205665367U (en) | 2016-06-13 | 2016-06-13 | High pressure flashover monitoring devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205665367U true CN205665367U (en) | 2016-10-26 |
Family
ID=57155174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620578822.2U Expired - Fee Related CN205665367U (en) | 2016-06-13 | 2016-06-13 | High pressure flashover monitoring devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205665367U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107786270A (en) * | 2017-11-17 | 2018-03-09 | 山东船舶技术研究院 | A kind of fiber optic communications devices |
| CN113552498A (en) * | 2021-07-02 | 2021-10-26 | 襄阳华中科技大学先进制造工程研究院 | High-voltage direct-current power supply flashover detection and parameter metering system and method |
-
2016
- 2016-06-13 CN CN201620578822.2U patent/CN205665367U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107786270A (en) * | 2017-11-17 | 2018-03-09 | 山东船舶技术研究院 | A kind of fiber optic communications devices |
| CN113552498A (en) * | 2021-07-02 | 2021-10-26 | 襄阳华中科技大学先进制造工程研究院 | High-voltage direct-current power supply flashover detection and parameter metering system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161026 Termination date: 20200613 |