CN204359887U - A kind of direct buried high-tension cable crust damage detection device - Google Patents
A kind of direct buried high-tension cable crust damage detection device Download PDFInfo
- Publication number
- CN204359887U CN204359887U CN201420688360.0U CN201420688360U CN204359887U CN 204359887 U CN204359887 U CN 204359887U CN 201420688360 U CN201420688360 U CN 201420688360U CN 204359887 U CN204359887 U CN 204359887U
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- tension cable
- detection device
- direct buried
- current sensor
- buried high
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- 238000001514 detection method Methods 0.000 title claims abstract description 26
- 238000001914 filtration Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 3
- 206010039509 Scab Diseases 0.000 description 13
- 238000000034 method Methods 0.000 description 4
- 241000238631 Hexapoda Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The utility model discloses a kind of direct buried high-tension cable crust damage detection device, comprise the current sensor of the current signal that can gather direct buried high-tension cable, and the biased branch road be connected with described current sensor respectively and signal export branch road.Direct buried high-tension cable crust damage detection device described in the utility model, the defects such as the large and poor stability of insulation sheath easy damaged in prior art, detection difficulty can be overcome, to realize insulation sheath not easy damaged, detection difficulty is little and security is good advantage.
Description
Technical field
The utility model relates to cable detecting device technical field, particularly, relates to a kind of direct buried high-tension cable crust damage detection device.
Background technology
High-tension cable gets more and more in the application of electric system, and in especially domestic large size city, 220kV cable also starts application.High-tension cable is all generally be embedded in underground, have and adopt tunnel to lay, and also has and is directly embedded in underground.Along with the lengthening of service time, directly be embedded in the high-tension cable of underground easily by the infringement of the burn into insects, mouse etc. of the potential of hydrogen in soil, these high-voltage cable insulating crusts there will be damage in various degree, once the insulated hull of outermost one deck is completely damaged, the screen layer of outer layer insulation intracutaneous will be connected with the earth, time normal, induced voltage is had in screen layer, screen layer one point earth, once occur that screen layer is a bit connected with the earth in addition, will produce circulation in screen layer, cause electric cable heating, serious will scaling loss cable.Known at present do not have such verifying attachment.
Realizing in process of the present utility model, inventor finds at least to exist in prior art the defects such as the large and poor stability of insulation sheath easy damaged, detection difficulty.
Utility model content
The purpose of this utility model is, for the problems referred to above, proposes a kind of direct buried high-tension cable crust damage detection device, to realize insulation sheath not easy damaged, detection difficulty is little and security is good advantage.
For achieving the above object, the technical solution adopted in the utility model is: a kind of direct buried high-tension cable crust damage detection device, comprise the current sensor of the current signal that can gather direct buried high-tension cable, and the biased branch road be connected with described current sensor respectively and signal export branch road.
Further, described current sensor, is specially Hall current sensor.
Further, described biased branch road, specifically comprises the biasing circuit be connected with described current sensor.
Further, described signal exports branch road, specifically comprises the imbalance compensation circuit, amplifying circuit, filtering circuit, A/D change-over circuit and the output display circuit that are connected with described current sensor successively.
The direct buried high-tension cable crust damage detection device of each embodiment of the utility model, owing to comprising the current sensor of the current signal that can gather direct buried high-tension cable, and the biased branch road be connected with current sensor respectively and signal export branch road; Can test cable shield electric current; Thus the defect of the large and poor stability of insulation sheath easy damaged in prior art, detection difficulty can be overcome, to realize insulation sheath not easy damaged, detection difficulty is little and security is good advantage.
Other features and advantages of the utility model will be set forth in the following description, and, partly become apparent from instructions, or understand by implementing the utility model.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for instructions, is used from explanation the utility model, does not form restriction of the present utility model with embodiment one of the present utility model.In the accompanying drawings:
Fig. 1 is the principle of work schematic diagram of the utility model direct buried high-tension cable crust damage detection device.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the utility model, and be not used in restriction the utility model.
According to the utility model embodiment, as shown in Figure 1, a kind of direct buried high-tension cable crust damage detection device is provided.
The direct buried high-tension cable crust damage detection device of the present embodiment, comprises the current sensor of the current signal that can gather direct buried high-tension cable, and the biased branch road be connected with described current sensor respectively and signal export branch road.Current sensor, is specially Hall current sensor.Biased branch road, specifically comprises the biasing circuit be connected with described current sensor.Signal exports branch road, specifically comprises the imbalance compensation circuit, amplifying circuit, filtering circuit, A/D change-over circuit and the output display circuit that are connected with described current sensor successively.
Direct buried high-tension cable crust damage detection device of the present utility model, can be suitable for the cable line of all electric pressures; Use direct buried high-tension cable crust damage detection device, can test cable shield electric current, the direct buried cable sheath of Timeliness coverage is damaged, and Timeliness coverage processes in time, avoids the generation of cable burning damage accident, improves power supply reliability.Ensure that the continuity of power supply and the security of work to greatest extent, set up good social image, also create huge social benefit.
Direct buried high-tension cable crust damage detection device of the present utility model, use leakage current Cleaning Principle, pincerlike Hall current sensor is used to detect the leakage current of screen layer, detect data through change-over circuit, output voltage values, through the process of unbalance voltage compensating circuit, give amplifying circuit, processing of circuit after filtering again, gives A/D change-over circuit, finally arrives output display.Ensure that the continuity of power supply and the security of work to greatest extent, set up good social image, also create huge social benefit.
Direct buried high-tension cable crust damage detection device of the present utility model, can realize live detection, and test speed is fast, effectively can prevent the generation of cable burning damage accident.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although be described in detail the utility model with reference to previous embodiment, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a direct buried high-tension cable crust damage detection device, is characterized in that, comprise the current sensor of the current signal that can gather direct buried high-tension cable, and the biased branch road be connected with described current sensor respectively and signal export branch road.
2. direct buried high-tension cable crust damage detection device according to claim 1, it is characterized in that, described current sensor, is specially Hall current sensor.
3. direct buried high-tension cable crust damage detection device according to claim 1 and 2, is characterized in that described biased branch road specifically comprises the biasing circuit be connected with described current sensor.
4. direct buried high-tension cable crust damage detection device according to claim 1 and 2, it is characterized in that, described signal exports branch road, specifically comprises the imbalance compensation circuit, amplifying circuit, filtering circuit, A/D change-over circuit and the output display circuit that are connected with described current sensor successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420688360.0U CN204359887U (en) | 2014-11-17 | 2014-11-17 | A kind of direct buried high-tension cable crust damage detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420688360.0U CN204359887U (en) | 2014-11-17 | 2014-11-17 | A kind of direct buried high-tension cable crust damage detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204359887U true CN204359887U (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420688360.0U Expired - Fee Related CN204359887U (en) | 2014-11-17 | 2014-11-17 | A kind of direct buried high-tension cable crust damage detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204359887U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501672A (en) * | 2016-10-19 | 2017-03-15 | 成都亚联科科技有限公司 | A kind of electric power overhaul high tension cable crust breakage detection system |
| CN108983017A (en) * | 2017-06-02 | 2018-12-11 | 波音公司 | Detection system for the abrasion conducting wire in fuel tank |
| CN113506414A (en) * | 2021-06-24 | 2021-10-15 | 海南电网有限责任公司琼海供电局 | Prevent foreign object invasion monitoring and warning device in cable pit |
-
2014
- 2014-11-17 CN CN201420688360.0U patent/CN204359887U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501672A (en) * | 2016-10-19 | 2017-03-15 | 成都亚联科科技有限公司 | A kind of electric power overhaul high tension cable crust breakage detection system |
| CN108983017A (en) * | 2017-06-02 | 2018-12-11 | 波音公司 | Detection system for the abrasion conducting wire in fuel tank |
| CN108983017B (en) * | 2017-06-02 | 2022-09-16 | 波音公司 | Method and detection system for detecting wear on insulated conductor in aircraft fuel tank |
| CN113506414A (en) * | 2021-06-24 | 2021-10-15 | 海南电网有限责任公司琼海供电局 | Prevent foreign object invasion monitoring and warning device in cable pit |
| CN113506414B (en) * | 2021-06-24 | 2022-09-06 | 海南电网有限责任公司琼海供电局 | Prevent foreign object invasion monitoring and warning device in cable pit |
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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: 20150527 |