CN204595135U - Electric power distribution network line-to-ground fault monitor alarm device - Google Patents
Electric power distribution network line-to-ground fault monitor alarm device Download PDFInfo
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- CN204595135U CN204595135U CN201420750302.6U CN201420750302U CN204595135U CN 204595135 U CN204595135 U CN 204595135U CN 201420750302 U CN201420750302 U CN 201420750302U CN 204595135 U CN204595135 U CN 204595135U
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- residual voltage
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- distribution network
- voltage acquisition
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- 238000004891 communication Methods 0.000 claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 22
- 208000033999 Device damage Diseases 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model provides a kind of electric power distribution network line-to-ground fault monitor alarm device, comprise data processing module, residual voltage acquisition module, communication module and power module, residual voltage acquisition module and communication module are connected to data processing module respectively, the residual voltage signal collected is sent to data processing module by residual voltage acquisition module, data processing module communication control module and distribution network managerial personnel contact, power module is connected to data processing module respectively, residual voltage acquisition module and communication module are its power supply, residual voltage acquisition module comprises the residual voltage monitor of voltage transformer (VT) and monitoring mutual inductor open delta residual voltage.Electric power distribution network line-to-ground fault monitor alarm device of the present utility model adopts residual voltage acquisition module, communication module etc., residual voltage is produced according to during distribution ground connection, power supply station distribution management personnel are informed in time by device, timely arrangement personnel handling failure, when avoiding long, ground connection causes device damage.
Description
[technical field]
The utility model relates to distribution network field, is specifically related to a kind of electric power distribution network line-to-ground fault monitor alarm device.
[background technology]
Mountainous rural area power supply area dispersion, each power supply station is in charge of 10kV network respectively.When there is earth fault, due to need through source substation, scheduling Two monitor levels, find to notify corresponding power supply station after fault, the required time be longer, brings safely larger hidden danger to distribution net equipment.
Therefore, a kind of device that can notify power supply station distribution management personnel in time, line walking defect elimination can be arranged in time of design is needed badly.
[utility model content]
In view of this, for overcoming the deficiencies in the prior art, the utility model provides a kind of electric power distribution network line-to-ground fault monitor alarm device, can notify power supply station distribution management personnel fault in time.
A kind of electric power distribution network line-to-ground fault monitor alarm device, described electric power distribution network line-to-ground fault monitor alarm device comprises data processing module, residual voltage acquisition module, communication module and power module, described residual voltage acquisition module and communication module are connected to described data processing module respectively, the residual voltage signal collected is sent to described data processing module by described residual voltage acquisition module, described data processing module controls described communication module and distribution network managerial personnel contact, described power module is connected to described data processing module respectively, described residual voltage acquisition module and described communication module are its power supply, described residual voltage acquisition module comprises voltage transformer (VT) and monitors the residual voltage monitor of described mutual inductor open delta residual voltage.
On the basis of technique scheme, described electric power distribution network line-to-ground fault monitor alarm device also comprises the antenna be connected with described communication module.
On the basis of technique scheme, when the open delta residual voltage of the described mutual inductor that residual voltage monitor monitors arrives is higher than 20V, if the duration was more than more than 5 seconds, described data processing module is judged to distribution network line-to-ground fault and sends note by described communication module to given Mobile Directory Number.
On the basis of technique scheme, described given Mobile Directory Number has multiple preset number, and in multiple described given Mobile Directory Number, one is major number, other be from number.
Electric power distribution network line-to-ground fault monitor alarm device of the present utility model adopts residual voltage acquisition module, communication module etc., residual voltage is produced according to during distribution ground connection, power supply station distribution management personnel are informed in time by device, timely arrangement personnel handling failure, when avoiding long, ground connection causes device damage.
[accompanying drawing explanation]
The residual voltage acquisition module schematic diagram adopted of the electric power distribution network line-to-ground fault monitor alarm device that Fig. 1 is preferred embodiment of the present utility model.
Fig. 2 is the structural representation of the electric power distribution network line-to-ground fault monitor alarm device of preferred embodiment of the present utility model.
[embodiment]
In order to understand the utility model better, below with reference to accompanying drawing and instantiation, the utility model is described in detail.
When there is ground short circuit in solidly earthed neutral system (also known as heavy current grounding system), very large zero-sequence current will be there is.Electric power distribution network line-to-ground fault monitor alarm device of the present utility model utilizes residual voltage monitoring principle and adopts electronic surveying and mobile communication technology, effectively can solve power supply station and control problem in time to distribution earth fault.
Incorporated by reference to consulting Fig. 1 and Fig. 2, the electric power distribution network line-to-ground fault monitor alarm device of preferred embodiment of the present utility model comprises data processing module 100, residual voltage acquisition module 200, communication module 300 and power module 400.Residual voltage acquisition module 200 and communication module 300 are connected to data processing module 100 respectively, the residual voltage signal collected is sent to data processing module 100 by residual voltage acquisition module 200, and distribution network line-to-ground fault is notified distribution network managerial personnel by antenna by data processing module 100 communication control module 300.Power module 400 is connected to data processing module 100, residual voltage acquisition module 200 and communication module 300 respectively, is its power supply.
Residual voltage acquisition module 200 comprises voltage transformer (VT) and residual voltage monitor, residual voltage monitor voltage monitoring mutual inductor open delta residual voltage.When voltage is higher than 20V, if the duration was more than more than 5 seconds, namely data processing module 100 is judged to distribution network line-to-ground fault, and sends information (sending note to Mobile Directory Number) by communication module 300 to given device for mobile communication.Given Mobile Directory Number can have multiple, its number can be preset.In multiple given number, one is major number, in addition be from number.
Before the electric power distribution network line-to-ground fault monitor alarm device that the utility model provides uses, need mutual inductor secondary voltage to introduce, mobile communication card is installed, and distribution line ground fault detection alarm device trigger voltage parameter and communications parameter are set.
The electric power distribution network line-to-ground fault monitor alarm device that the utility model provides produces residual voltage according to during distribution ground connection, and inform power supply station distribution management personnel by device in time, timely arrangement personnel handling failure, when avoiding long, ground connection causes device damage.
The above exemplifying embodiment only have expressed some embodiments of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (2)
1. an electric power distribution network line-to-ground fault monitor alarm device, it is characterized in that: described electric power distribution network line-to-ground fault monitor alarm device comprises data processing module, residual voltage acquisition module, communication module and power module, described residual voltage acquisition module and communication module are connected to described data processing module respectively, the residual voltage signal collected is sent to described data processing module by described residual voltage acquisition module, described data processing module controls described communication module and distribution network managerial personnel contact, described power module is connected to described data processing module respectively, described residual voltage acquisition module and described communication module are its power supply, described residual voltage acquisition module comprises voltage transformer (VT) and monitors the residual voltage monitor of described mutual inductor open delta residual voltage.
2. electric power distribution network line-to-ground fault monitor alarm device according to claim 1, is characterized in that: described electric power distribution network line-to-ground fault monitor alarm device also comprises the antenna be connected with described communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420750302.6U CN204595135U (en) | 2014-12-03 | 2014-12-03 | Electric power distribution network line-to-ground fault monitor alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420750302.6U CN204595135U (en) | 2014-12-03 | 2014-12-03 | Electric power distribution network line-to-ground fault monitor alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204595135U true CN204595135U (en) | 2015-08-26 |
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ID=53931280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420750302.6U Expired - Fee Related CN204595135U (en) | 2014-12-03 | 2014-12-03 | Electric power distribution network line-to-ground fault monitor alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204595135U (en) |
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2014
- 2014-12-03 CN CN201420750302.6U patent/CN204595135U/en not_active Expired - Fee Related
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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: 20150826 Termination date: 20181203 |