CN207636665U - A kind of Leakage Current harvester - Google Patents
A kind of Leakage Current harvester Download PDFInfo
- Publication number
- CN207636665U CN207636665U CN201721625388.XU CN201721625388U CN207636665U CN 207636665 U CN207636665 U CN 207636665U CN 201721625388 U CN201721625388 U CN 201721625388U CN 207636665 U CN207636665 U CN 207636665U
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- Prior art keywords
- leakage current
- communication module
- insulator
- microprocessor
- current transformer
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- 239000012212 insulator Substances 0.000 claims abstract description 38
- 238000004891 communication Methods 0.000 claims abstract description 23
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 abstract description 12
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000011109 contamination Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 241001124569 Lycaenidae Species 0.000 abstract 1
- 238000012360 testing method Methods 0.000 abstract 1
- 238000012800 visualization Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 10
- 230000005611 electricity Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Insulators (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model discloses a kind of Leakage Current harvesters, including current transformer, leakage current collection module, microprocessor and communication module, the current transformer is mounted at target insulator, the current transformer and leakage current collection module, the microprocessor and communication module communicate successively, and the communication module is used for and backstage monitoring terminal mutually communicates.It is by Leakage Current at target insulator and insulator contamination event procedure image/video, realize remote viewing, pre-warning and the evolution process video visualization of Voltage for Insulators on HV Lines surface filth state, more accurately to obtain the testing result of electric transmission line isolator pollution flashover, the detection quality of electric transmission line isolator pollution flashover is improved.
Description
Technical field
The utility model belongs to electric transmission line isolator on-line monitoring technique field more particularly to a kind of acquisition of Leakage Current
Device.
Background technology
Insulator is one of the critical component of overhead power transmission transmission line of electricity, and the quality of performance directly influences whole transmission of electricity
The safe operation of circuit.
It is aggravated with environmental degradation, pollution, gradually coverage is wide for grid pollution flashover accident, seriously threatens transmission facility
Safe operation.In atmospheric environment, operation insulator is influenced by factors such as natural airborne dust, industrial discharges, and surface gradually deposits dirt
Dirty things, under the influence of the various terrible weathers such as mist, dew, rain, snow so that the electrical strength of insulator substantially reduces, to draw
Hair flashover causes the accident.According to statistics, in the total accident number of electric system, pollution flashover accident is only second to damage to crops caused by thunder and occupies second, but by
It is very low in the automatic reclosing success rate of pollution flashover accident, caused by loss be 10 times of lightening hazard.
Pre-warning is generally by judging that the pollution level of insulator surface is realized, the 33rd committee of international conference on large HV electric systems
It recommends 5 kinds and measures filthy method, i.e. equivalent salt density method, integrate surface pollution layer conductivity method, pulse counting method, leakage current
Method and insulator contamination voltage gradient method.It is dynamic characterization parameter wherein there was only leakage current, is presently believed to be and most grinds
Study carefully the pre-warning characteristic quantity of value.
Leakage current refer under applied voltage insulator by the electric current for flowing through surface pollution layer and reaching ground measured by the time of tide.
It is that one kind is slipped through the net electric current, electric current of escaping.It is weather, voltage, filthy three elements concentrated expression and finally act on as a result, being
Dynamic parameter is considered as most reacting the parameter of a science of pollution degree.When one timing of voltage and weather conditions, insulator
Surface leakage current is directly proportional to filthy severity.That is the pulse of leakage current generally arise from exchange pollution flashover final stage it
Before, and with approaching for flashover is closed on, pulse frequency and maximum amplitude will increase, and therefore, the same pollution flashover of insulator leakage current
Relationship is determined there is apparent, can largely estimate and predict the pollution flashover voltage of insulator and comment between voltage
The filth of valence insulator is horizontal, can be used for monitoring the operating status of contaminated insulator, and provides the alarm of flashover danger.
In the process of implementing the utility model, it is found by the applicant that at least having the following disadvantages in the prior art：
In the prior art, the detection of insulator Leakage Current mainly has the around-France and pincerlike HF current transformer method of electric current.
The wherein around-France high certainty of measurement of electric current, due to being electrical connection, there are the danger of overvoltage for measurement；Pincerlike high-frequency current mutual inductance method
Measurement has the advantages that non-electrical contact, but is limited by live insulator mounting means, and there are the spies that measurement accuracy is not high enough
Point.
Utility model content
There is problem for the above-mentioned prior art, the utility model provides a kind of Leakage Current harvester, can not only be real
The measurement of existing insulator surface Leakage Current, moreover it is possible to realize the electrical isolation of follow-up measurement module and insulator.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of Leakage Current harvester, described device include current transformer, leakage current collection module, microprocessor
And communication module, the current transformer are mounted at target insulator, the current transformer and the leakage current collection
Module, the microprocessor and the communication module communicate successively, and the communication module is used for and backstage monitoring terminal is mutual
Communication.
Further, the current transformer is mounted on drainage thread, and the both ends of the drainage thread are insulated with target respectively
Son is connected with tower crane.
Further, the current transformer is silent Hall sensor.
Further, the communication module is wireless communication module.
Further, the microprocessor is also integrated with solar recharging template.
Further, described device further includes temperature humidity measuring instrument, the temperature humidity measuring instrument and the microprocessor
Device communicates.
The utility model has the beneficial effects that：
A kind of Leakage Current harvester of the utility model obtains the surface leakage electricity of insulator by current transformer
Signal is flowed, to realize the measurement of insulator surface Leakage Current, meanwhile, current signal is converted to voltage by current transformer to be believed
Number, and acquired to microprocessor by leakage current collection module, you can realize follow-up measurement module and insulator it is electrical every
From signal is communicated by communication module to platform and monitors terminal by microprocessor, completes the surface current value at target insulator
Acquisition, the monitoring for the operating status of insulator provide support.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of block schematic illustration of Leakage Current harvester of the utility model embodiment；
Fig. 2 is a kind of arrangement schematic diagram of Leakage Current harvester of the utility model embodiment.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Fig. 1 is a kind of block schematic illustration of Leakage Current harvester of the utility model embodiment, and Fig. 2 is that this practicality is new
A kind of arrangement schematic diagram of Leakage Current harvester of type embodiment.With reference to figure 1 and Fig. 2, the one of the utility model embodiment
Kind Leakage Current harvester, including current transformer 1, leakage current collection module 2, microprocessor 3 and communication module 4, electricity
Current transformer 1 is mounted at target insulator 5, current transformer 1 and leakage current collection module 2, microprocessor 3 and communication
Module 4 communicates successively, and communication module 4 is used for and backstage monitoring terminal mutually communicates.
A kind of Leakage Current harvester of the utility model obtains the surface leakage electricity of insulator by current transformer
Signal is flowed, to realize the measurement of insulator surface Leakage Current, meanwhile, current signal is converted to voltage by current transformer to be believed
Number, and acquired to microprocessor by leakage current collection module, you can realize follow-up measurement module and insulator it is electrical every
From signal is communicated by communication module to platform and monitors terminal by microprocessor, completes the surface current value at target insulator
Acquisition, the monitoring for the operating status of insulator provide support.
In conjunction with Fig. 2, the current transformer 1 of the utility model embodiment may be mounted on drainage thread 6, and the two of drainage thread 6
End is connected with target insulator 5 with tower crane respectively.
Preferably, the current transformer 1 of the utility model embodiment is silent Hall sensor, so as to greatly improve
Sampling precision and reliability obtain insulator surface leakage current in real time.
The communication module 4 of the utility model embodiment is wireless communication module, to save cable, simplifies installation, construction party
Just, and security risk can be reduced.
In conjunction with Fig. 2, the microprocessor 3 of the utility model embodiment is also integrated with solar recharging template 8, can lead in this way
It crosses solar energy to charge to it, ensures the normal operation of microprocessor
In addition, in conjunction with Fig. 1 and Fig. 2, the device of the utility model embodiment can also include temperature humidity measuring instrument 7, should
Temperature humidity measuring instrument 7 is used to detect the micro climate data at target insulator, and the monitoring for the operating status for insulator carries
For supporting.The temperature humidity measuring instrument 7 and microprocessor 3 of the utility model embodiment communicate, and can thus acquire weather
Unit is integrated in Leakage Current collecting unit, facilitates arrangement.
In the utility model embodiment, micro climate data include mainly the real-time temperature values and humidity value at insulator.
Embodiment provided above is the better embodiment of the utility model, only is used for facilitating illustrating the utility model, and
It is non-to impose any limitation on the present invention, any those of ordinary skill in the art, if not departing from
In the range of the carried technical characteristic of the utility model, locally changes or repair using made by the utility model disclosed technology content
The equivalent embodiment of decorations, and without departing from the technical characteristics of the utility model content, still fall within the utility model technical characteristic
In the range of.
Claims (6)
1. a kind of Leakage Current harvester, which is characterized in that described device includes current transformer (1), leakage current collection
Module (2), microprocessor (3) and communication module (4), the current transformer (1) is mounted at target insulator (5), described
Current transformer (1) and the leakage current collection module (2), the microprocessor (3) and the communication module (4) are successively
Communication, the communication module (4) is used for and backstage monitoring terminal mutually communicates.
2. a kind of Leakage Current harvester according to claim 1, which is characterized in that current transformer (1) peace
On drainage thread (6), the both ends of the drainage thread (6) are connected with target insulator (5) with tower crane respectively.
3. a kind of Leakage Current harvester according to claim 1, which is characterized in that the current transformer (1) is
Silent Hall sensor.
4. a kind of Leakage Current harvester according to claim 1, which is characterized in that the communication module (4) is nothing
Line communication module.
5. a kind of Leakage Current harvester according to claim 1, which is characterized in that the microprocessor (3) also collects
At there is solar recharging template (8).
6. according to a kind of Leakage Current harvester of claim 1-4 any one of them, which is characterized in that described device is also wrapped
Include temperature humidity measuring instrument (7), the temperature humidity measuring instrument (7) and the microprocessor (3) communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721625388.XU CN207636665U (en) | 2017-11-29 | 2017-11-29 | A kind of Leakage Current harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721625388.XU CN207636665U (en) | 2017-11-29 | 2017-11-29 | A kind of Leakage Current harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207636665U true CN207636665U (en) | 2018-07-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721625388.XU Active CN207636665U (en) | 2017-11-29 | 2017-11-29 | A kind of Leakage Current harvester |
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| Country | Link |
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| CN (1) | CN207636665U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109324221A (en) * | 2018-10-31 | 2019-02-12 | 深圳碟能创新科技有限公司 | Ponding leakage inductance answers alarm |
| CN110174613A (en) * | 2019-06-21 | 2019-08-27 | 国网西藏电力有限公司拉萨供电公司 | A kind of state monitoring apparatus and method of disconnecting switch |
| CN116973697A (en) * | 2023-06-20 | 2023-10-31 | 无锡广盈集团有限公司 | Leakage current identification system and method |
-
2017
- 2017-11-29 CN CN201721625388.XU patent/CN207636665U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109324221A (en) * | 2018-10-31 | 2019-02-12 | 深圳碟能创新科技有限公司 | Ponding leakage inductance answers alarm |
| CN110174613A (en) * | 2019-06-21 | 2019-08-27 | 国网西藏电力有限公司拉萨供电公司 | A kind of state monitoring apparatus and method of disconnecting switch |
| CN116973697A (en) * | 2023-06-20 | 2023-10-31 | 无锡广盈集团有限公司 | Leakage current identification system and method |
| CN116973697B (en) * | 2023-06-20 | 2024-03-26 | 无锡广盈集团有限公司 | Leakage current identification system and method |
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