CN203950018U - High-tension cable partial discharge detecting sensor based - Google Patents
High-tension cable partial discharge detecting sensor based Download PDFInfo
- Publication number
- CN203950018U CN203950018U CN201420402847.8U CN201420402847U CN203950018U CN 203950018 U CN203950018 U CN 203950018U CN 201420402847 U CN201420402847 U CN 201420402847U CN 203950018 U CN203950018 U CN 203950018U
- Authority
- CN
- China
- Prior art keywords
- photoelectric conversion
- coil groups
- detection
- cavity
- detection part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
A high-tension cable partial discharge detecting sensor based, comprising: insulation shell, has two the first cavitys that are interconnected and the second cavity in insulation shell; Detection part, detection part is arranged in the first cavity, detection part includes bar magnet, in the outside of bar magnet, be arranged with for responding to the coil groups of shelf depreciation, the arranged outside of coil groups has the shielding case with shielding action, detection part includes a plurality of, the coil groups test set that forms in parallel having on whole detection parts; For carrying out the photoelectric conversion part of opto-electronic conversion, photoelectric conversion part and test set electrical connection, photoelectric conversion part is arranged in the second cavity, and it has fiber-optic output, and fiber-optic output extend out to the outside of insulation shell.By said structure, design, the utlity model has the remarkable advantage that antijamming capability is strong, accuracy of detection is high, also have advantages of simultaneously light and handy, carrying conveniently moving, simple to operate, contribute to increase work efficiency.
Description
Technical field
The utility model relates to a kind of electric power checkout equipment, especially relates to a kind of high-tension cable partial discharge detecting sensor based.
Background technology
High-tension cable is the important component part of electric system, and along with the development of high pressure and extra high voltage network, power cable is widely used because of its distinctive technological merit.Cable can cause internal field's stress to concentrate due to the factors such as accumulation of space charge under inner impurity, semiconductor layer projection, voltage effect in operational process, produce shelf depreciation, cause safe operation to be affected, therefore the shelf depreciation insulating by detection streamer, can effectively judge the aging conditions of cable insulation, this operation of long-term stability for power cable line is significant.Detecting high-tension cable shelf depreciation situation need be by corresponding pick-up unit, pick-up unit is generally received with sense terminals and is formed by sensor ends and signal, a little less than its sensor ends of existing cable local discharge detection device often exists antijamming capability, accuracy of detection is not high, the defect of inconvenient operation, urgently improves.
Utility model content
The technical problems to be solved in the utility model is: for solve existing high-tension cable local discharge detection device sensor ends antijamming capability a little less than, not high, the unhandy problem of accuracy of detection, and a kind of high anti-jamming capacity, the high precision high-tension cable partial discharge detecting sensor based of convenient operation is simultaneously provided, to drop into application.
The utility model solves the technical scheme that its technical matters adopts: a kind of high-tension cable partial discharge detecting sensor based, comprising:
Insulation shell, has two the first cavitys that are interconnected and the second cavity in described insulation shell;
Detection part, described detection part is arranged in described the first cavity, described detection part includes bar magnet, in the outside of described bar magnet, be arranged with for responding to the coil groups of shelf depreciation, the arranged outside of described coil groups has the shielding case with shielding action, described detection part includes a plurality of, the described coil groups test set that forms in parallel having on whole described detection parts;
For carrying out the photoelectric conversion part of opto-electronic conversion, described photoelectric conversion part and the electrical connection of described test set, described photoelectric conversion part is arranged in described the second cavity, and it has fiber-optic output, and described fiber-optic output extend out to the outside of described insulation shell.
Particularly, the utility model also includes current-amplifying device, and described current-amplifying device is arranged between described coil groups and described photoelectric conversion part, and described photoelectric conversion part is electrically connected by described current-amplifying device and described test set.
In said structure design, the principle of work of detection part is: by the local discharge signal of the coil coupling high-tension cable outside bar magnet, coil is transferred to circuit board by signal, after the effect of the amplifying circuit on circuit board and photoelectric conversion part, electric signal is converted to light signal and exports to signal reception sense terminals.This detecting sensor is utilized the high permeability characteristic of bar magnet, has significantly promoted detection sensitivity level and signal to noise ratio (S/N ratio); By putting shielding case at coil peripheral hardware, effectively shield the interference of external signal, do not affected again the collection to object signal simultaneously; By converting electrical signals to light signal and exporting terminal to and effectively avoided output signal to be subject to the problem of electromagnetic interference (EMI) with optical fiber.
In the utility model, detection part is provided with a plurality of, the coil groups arranging on whole detection parts forms test set by parallel connection, to those skilled in the art, coil groups induction shelf depreciation produces electromotive force, adopts parallel way that coil groups is connected, thereby the electric current that coil groups produces has the effect of converging improves faradic size, be the equal of to have increased electrical signal of reaction, because electric signal strengthens, make accuracy of detection of the present utility model obtain improving largely.
The beneficial effects of the utility model are: this high-tension cable partial discharge detecting sensor based is compared with existing like product, there is the remarkable advantage that antijamming capability is strong, accuracy of detection is high, also have advantages of simultaneously light and handy, carrying conveniently moving, simple to operate, contribute to increase work efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the surface structure schematic diagram of a kind of embodiment medium and high voltage cable of the utility model partial discharge detecting sensor based;
Fig. 2 is the plan structure schematic diagram of a kind of embodiment medium and high voltage cable of the utility model partial discharge detecting sensor based;
Fig. 3 is the sectional structure schematic diagram of a kind of embodiment medium and high voltage cable of the utility model partial discharge detecting sensor based;
In Fig. 1 to Fig. 3, the corresponding relation of component names and Reference numeral is:
Insulation shell 1, bar magnet 2, coil groups 3, shielding case 4, photoelectric conversion part 5, fiber-optic output 6.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1 to Fig. 3, wherein, Fig. 1 is the surface structure schematic diagram of a kind of embodiment medium and high voltage cable of the utility model partial discharge detecting sensor based; Fig. 2 is the plan structure schematic diagram of a kind of embodiment medium and high voltage cable of the utility model partial discharge detecting sensor based; Fig. 3 is the sectional structure schematic diagram of a kind of embodiment medium and high voltage cable of the utility model partial discharge detecting sensor based.
The utility model provides a kind of high-tension cable partial discharge detecting sensor based, comprising: insulation shell 1, has two the first cavitys that are interconnected and the second cavity in insulation shell 1; Detection part, detection part is arranged in the first cavity, detection part includes bar magnet 2, in the outside of bar magnet 2, be arranged with for responding to the coil groups 3 of shelf depreciation, the arranged outside of coil groups 3 has the shielding case 4 with shielding action, detection part includes a plurality of, coil groups 3 test set that forms in parallel having on whole detection parts; For carrying out the photoelectric conversion part 5 of opto-electronic conversion, photoelectric conversion part 5 and test set electrical connection, photoelectric conversion part 5 is arranged in the second cavity, and it has fiber-optic output 6, and fiber-optic output 6 extend out to the outside of insulation shell 1.
Particularly, the utility model also includes current-amplifying device, and current-amplifying device is arranged between coil groups 3 and photoelectric conversion part 5, and photoelectric conversion part 5 is electrically connected by current-amplifying device and test set.
In the utility model, photoelectric conversion device is for converting electrical signals to the photoelectric switching circuit plate of light signal.
In said structure design, the principle of work of detection part is: by the local discharge signal of the coil coupling high-tension cable outside bar magnet 2, coil is transferred to circuit board by signal, after the effect of the amplifying circuit on circuit board and photoelectric conversion part 5, electric signal is converted to light signal and exports to signal reception sense terminals.This detecting sensor is utilized the high permeability characteristic of bar magnet 2, has significantly promoted detection sensitivity level and signal to noise ratio (S/N ratio); By putting shielding case 4 at coil peripheral hardware, effectively shield the interference of external signal, do not affected again the collection to object signal simultaneously; By converting electrical signals to light signal and exporting terminal to and effectively avoided output signal to be subject to the problem of electromagnetic interference (EMI) with optical fiber.
In the utility model, detection part is provided with a plurality of, the coil groups 3 arranging on whole detection parts forms test set by parallel connection, to those skilled in the art, coil groups 3 induction shelf depreciations produce electromotive force, adopt parallel way that coil groups 3 is connected, thereby the electric current that coil groups 3 produces has the effect of converging improves faradic size, be the equal of to have increased electrical signal of reaction, because electric signal strengthens, make accuracy of detection of the present utility model obtain improving largely.
The beneficial effects of the utility model are: this high-tension cable partial discharge detecting sensor based is compared with existing like product, there is the remarkable advantage that antijamming capability is strong, accuracy of detection is high, also have advantages of simultaneously light and handy, carrying conveniently moving, simple to operate, contribute to increase work efficiency.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (2)
1. a high-tension cable partial discharge detecting sensor based, is characterized in that, comprising:
Insulation shell (1), has two the first cavitys that are interconnected and the second cavity in described insulation shell;
Detection part, described detection part is arranged in described the first cavity, described detection part includes bar magnet (2), in the outside of described bar magnet, be arranged with the coil groups (3) for responding to shelf depreciation, the arranged outside of described coil groups has the shielding case (4) with shielding action, described detection part includes a plurality of, the described coil groups test set that forms in parallel having on whole described detection parts;
For carrying out the photoelectric conversion part (5) of opto-electronic conversion, described photoelectric conversion part and the electrical connection of described test set, described photoelectric conversion part is arranged in described the second cavity, and it has fiber-optic output (6), and described fiber-optic output extend out to the outside of described insulation shell.
2. high-tension cable partial discharge detecting sensor based according to claim 1, is characterized in that,
Also include current-amplifying device, described current-amplifying device is arranged between described coil groups and described photoelectric conversion part, and described photoelectric conversion part is electrically connected by described current-amplifying device and described test set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420402847.8U CN203950018U (en) | 2014-07-21 | 2014-07-21 | High-tension cable partial discharge detecting sensor based |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420402847.8U CN203950018U (en) | 2014-07-21 | 2014-07-21 | High-tension cable partial discharge detecting sensor based |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203950018U true CN203950018U (en) | 2014-11-19 |
Family
ID=51892046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420402847.8U Expired - Fee Related CN203950018U (en) | 2014-07-21 | 2014-07-21 | High-tension cable partial discharge detecting sensor based |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203950018U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633388A (en) * | 2018-12-10 | 2019-04-16 | 国网宁夏电力有限公司电力科学研究院 | A kind of partial discharge sensing device of multi-functional super-high frequency |
| CN110596551A (en) * | 2019-09-27 | 2019-12-20 | 国网浙江省电力有限公司电力科学研究院 | Partial discharge detection sensor |
| ES2859164A1 (en) * | 2021-03-03 | 2021-10-01 | Univ Madrid Politecnica | INSULATED AND SHIELDED PARTIAL DISCHARGE SENSOR DEVICE OF HIGH FREQUENCY CURRENT TRANSFORMER, HFCT, HIGH GAIN AND LOW DISTORTION WITH SELF-TEST SYSTEM FOR HIGH VOLTAGE EQUIPMENT AND INSTALLATIONS (Machine-translation by Google Translate, not legally binding) |
-
2014
- 2014-07-21 CN CN201420402847.8U patent/CN203950018U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633388A (en) * | 2018-12-10 | 2019-04-16 | 国网宁夏电力有限公司电力科学研究院 | A kind of partial discharge sensing device of multi-functional super-high frequency |
| CN110596551A (en) * | 2019-09-27 | 2019-12-20 | 国网浙江省电力有限公司电力科学研究院 | Partial discharge detection sensor |
| ES2859164A1 (en) * | 2021-03-03 | 2021-10-01 | Univ Madrid Politecnica | INSULATED AND SHIELDED PARTIAL DISCHARGE SENSOR DEVICE OF HIGH FREQUENCY CURRENT TRANSFORMER, HFCT, HIGH GAIN AND LOW DISTORTION WITH SELF-TEST SYSTEM FOR HIGH VOLTAGE EQUIPMENT AND INSTALLATIONS (Machine-translation by Google Translate, not legally binding) |
| WO2022184953A1 (en) * | 2021-03-03 | 2022-09-09 | Universidad Politécnica de Madrid | Insulated, shielded partial discharge sensor device of the high-frequency current transformer (hfct) type, with high gain and low distortion, and with self-check system for high-voltage equipment and installations |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203950018U (en) | High-tension cable partial discharge detecting sensor based | |
| CN202815120U (en) | Electric energy quality acquisition system in electric energy quality analyzer | |
| CN204666772U (en) | A kind of shelf depreciation In-circiut tester | |
| CN102710248A (en) | Isolated voltage acquisition circuit | |
| CN202502134U (en) | Secondary voltage drop detection device for voltage transformer | |
| CN104569566A (en) | Measurement device of leaked current at high-voltage end of insulator | |
| CN103630811A (en) | Digital partial discharge detecting system | |
| CN202583401U (en) | Detection sensor of partial discharge of high-voltage cable | |
| CN103245836B (en) | There is the intelligent megohmmeter of automatic discharging function | |
| CN204758714U (en) | Isolated electric wire netting detector of digit | |
| CN204228893U (en) | A kind of PD On-Line Measurement System | |
| CN103487631B (en) | Modulation-demodulation type current sensor | |
| CN103487721A (en) | Traveling wave distance measuring system based on electronic transformer | |
| CN204168001U (en) | A kind of intelligent duplicate power supply automatic change-over based on DSP | |
| CN203101499U (en) | Voltage acquisition circuit | |
| CN201732116U (en) | High-voltage charged display | |
| CN203465371U (en) | Line inspection apparatus for network communication cable | |
| CN204422636U (en) | Alternating current signal detection circuit | |
| CN204945257U (en) | A kind of electrical equipment pick-up unit | |
| CN203204052U (en) | Leakage current measurement system for lightning protection devices | |
| CN204116504U (en) | A kind of transformer DC magnetic bias on-Line Monitor Device | |
| CN204154793U (en) | For the novel voltage pick-up unit of motor train unit | |
| CN203630286U (en) | Digital partial discharge detection system | |
| CN203396889U (en) | Cable identification apparatus with lightning function | |
| CN204086354U (en) | For high-voltage shunt reactor winding failure Detection capacitance voltage divider arrangement |
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: 20141119 Termination date: 20160721 |