CN101545923A - Built-in local discharge sensor - Google Patents
Built-in local discharge sensor Download PDFInfo
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- CN101545923A CN101545923A CN200910119356A CN200910119356A CN101545923A CN 101545923 A CN101545923 A CN 101545923A CN 200910119356 A CN200910119356 A CN 200910119356A CN 200910119356 A CN200910119356 A CN 200910119356A CN 101545923 A CN101545923 A CN 101545923A
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Abstract
The present invention relates to a built-in local discharge sensor belongs to a cable monitoring technology field. The built-in sensor provides a discharging monitoring novel structure and a novel mode; the external surfaces of a front conductor and a rear conductor are all provided with a cable insulating layer separately, the external surface of the cable insulating layer is provided with a semi-conductive layer, the external surface of the semi-conductive layer is provided with a cable insulating layer, the external surfaces of the front conductor and the rear conductor, the external surfaces of the semi-conductive layer ends locating on the cable insulating layers of the front conductor and the rear conductor are all provided with a same conical body after crimp connection fixedly, a semi-conductive belt enwinds the conical body end, a electrode enwinds the semi-conductive belt, an insulating belt enwinds the semi-conductive layer surface of the electrode and the cable insulating layer, a shielding net enwinds the surface of a cable metal cover, an insulating belt, the conical body and the semi-conductive layer, a joint metal cover is suited with the cable metal cover, the inner of the joint metal cover is filled to coagulate and is cemented with a neighboring member by a subbing, and the cable is connected with the electrode electrically.
Description
Technical field
Built-in local discharge sensor of the present invention relates to the partial discharge monitoring technical field; Be particularly related to partial discharge monitoring technical field to cable splice; Relate in particular to the built-in technical field of partial discharge monitoring device; Be specifically related to the built-in local discharge sensor technical field.
Background technology
Along with the develop rapidly of electric power networks and electricity consumption cause, new requirement has been proposed also for the safe operation of electric power networks and electricity consumption; Specific to cable, its safe operation and security maintenance are also inevitably more and more paid attention to by electric system.Cable is in operational process, the easiest weak link that breaks down is exactly the joint of cable, the joint area of cable is in for a long time under the big load condition and moves, can make the cable splice place produce shelf depreciation, can be breakdown when serious, cause the major accident of cable fire to take place at last, thereby cause large tracts of land cable scaling loss, cause the short time to recover, the heavy economic losses that causes large-scale outage and can't retrieve.For stopping the generation of above-mentioned situation, the shelf depreciation that monitoring system is used to monitor the cable splice position is put in employing office at present, so that monitoring is in real time implemented in the safe operation of cable, promptly at the outside placement in the joint of cable local discharge sensor, thus the shelf depreciation situation of monitoring cable; But, thisly place the mode of local discharge sensor, cause the partial discharge monitoring at butt junction position inaccurate, still can't stop deficiency, defective and drawback that potential safety hazard takes place thereby exist because of the cable splice position bigger situation of structure at cable " outside surface ".In view of the professional knowledge of designer in the present patent application be engaged in the rich experiences of industry work and to the excelsior unremitting pursue of cause, to take " built-in local discharge sensor " gordian technique, new construction and new mode to the cable splice partial discharge monitoring be provided, thus, the present invention is exactly conscientious and on sufficient investigation, understanding, analysis, summary prior art and the present situation basis, for overcoming and solving that the deficiency, defective and the drawback that exist in prior art and the real current situation succeed in developing.
Summary of the invention
The objective of the invention is to take " built-in local discharge sensor " gordian technique, new construction and new mode to the cable splice partial discharge monitoring are provided, preceding conductor is connected with back conductor crimping, be provided with cable insulation on the outside surface of preceding conductor and back conductor, the outside surface of cable insulation is provided with semi-conductive layer, the outside surface of semi-conductive layer is provided with the cable metal cover, before its described after crimping on conductor and the back conductor outside surface, all be provided with same cone-shaped body in a fixed manner on the outside surface of the semi-conductive layer termination section that is provided with on the cable insulation that is provided with on conductor and the back conductor before described, its semi-conductive tape is wrapped in the position, termination of cone-shaped body, its electrode is wrapped on the semi-conductive tape at position, cone-shaped body termination, its para tape is wrapped in the semi-conductive layer surface that reaches on the electrode on the cable insulation, its gauze screen is wrapped in the cable metal cover, para tape, cone-shaped body, on the surface of semi-conductive layer, its described joint metallic sheath and cable metal cover suit, be filled with the encapsulating layer with the can after coagulation and with the mode of adjacent elements bonding in its joint metallic sheath, its described cable is electrically connected with the electrode employing.
By the present invention, take into full account under the bigger actual state prerequisite of cable splice position structure, implementing " built-in local discharge sensor " gordian technique, accurately detecting shelf depreciation with the monitoring cable joint area, cable splice place as weakest link is monitored in real time, fundamentally stop the generation of potential safety hazard, solve the deficiency, defective and the drawback that exist in prior art and the present situation effectively, its design science rationally, simple and ingenious structure, effect stability be reliable, be beneficial to and apply.
The present invention can accomplish the end in view.
For achieving the above object, technical scheme provided by the invention is:
A kind of built-in local discharge sensor is mainly by preceding conductor, back conductor, cable insulation, semi-conductive layer, cable metal cover, cone-shaped body, semi-conductive tape, electrode, cable, para tape, gauze screen, joint metallic sheath, encapsulating layer;
Described built-in local discharge sensor, its preceding conductor is connected with back conductor crimping, be provided with cable insulation on the outside surface of its preceding conductor and back conductor, the outside surface of its cable insulation is provided with semi-conductive layer, the outside surface of its semi-conductive layer is provided with the cable metal cover, before its described after crimping on conductor and the back conductor outside surface, all be provided with same cone-shaped body in a fixed manner on the outside surface of the semi-conductive layer termination section that is provided with on the cable insulation that is provided with on conductor and the back conductor before described, its semi-conductive tape is wrapped in the position, termination of cone-shaped body, its electrode is wrapped on the semi-conductive tape at position, cone-shaped body termination, its para tape is wrapped in the semi-conductive layer surface that reaches on the electrode on the cable insulation, its gauze screen is wrapped in the cable metal cover, para tape, cone-shaped body, on the surface of semi-conductive layer, its described joint metallic sheath and cable metal cover suit, be filled with the encapsulating layer with the can after coagulation and with the mode of adjacent elements bonding in its joint metallic sheath, its described cable is electrically connected with the electrode employing.
Described built-in local discharge sensor, it is characterized in that: conductor before described, back conductor is cable bare wire shape structure, described cable insulation is the insulation layer structure of cable, described semi-conductive layer is the semiconduction stratiform structure of cable, described cable metal cover is metallic sheath tubulose structure, described cone-shaped body is that interlude is cylindric and the two ends section is mirror image taper tubular structure, described semi-conductive tape is a banded structure, described electrode is netted or schistose texture, described para tape is a banded structure, described gauze screen is a reticulate texture, described joint metallic sheath is a metallic sheath tubulose structure, described encapsulating layer is to be jello cannula-like structure after jelly solidifies, and described cable is the cable-shaped structure that is applied to cable is implemented monitoring.
Described built-in local discharge sensor, it is characterized in that: be provided with cable insulation on conductor and the back conductor before described, be provided with semi-conductive layer on the cable insulation of conductor and back conductor before described, be provided with the cable metal cover on the semi-conductive layer of the cable insulation of described preceding conductor and back conductor.
Described built-in local discharge sensor is characterized in that: described cable metal cover, electrode, gauze screen, joint metallic sheath are made by metal material.
Owing to adopted technical scheme provided by the present invention, thereby made the present invention compare, obtained following beneficial effect with existing known technology:
1,, thereby obtained to bear the beneficial effect of corresponding stress because the present invention is provided with cone-shaped body.
2,, thereby obtained the beneficial effect that shelf depreciation is conducted because the present invention is provided with semi-conductive tape.
3, because the present invention is provided with electrode, thus the beneficial effect that acquisition is collected shelf depreciation.
4,, thereby obtained the good beneficial effect of insulation effect because the present invention is provided with para tape.
5, because the present invention is provided with cable, this cable and electrode constitute status of electrically connecting, thereby have obtained partial discharge monitoring beneficial effect accurate and effective, that in real time the shelf depreciation enforcement of cable splice is monitored.
6,, thereby obtained and to have implemented the effectively beneficial effect of protection to " built-in local discharge sensor " mode because the present invention is provided with joint metallic sheath, encapsulating layer.
7,, thereby obtained fundamentally to stop the beneficial effect of potential safety hazard because each bar of the present invention is described.
8,, thereby obtained beneficial effect to the new mode of cable splice partial discharge monitoring because above each bar of the present invention is described.
9,, thereby obtained to overcome and solve the beneficial effect that has the deficiency, defective and the drawback that exist in known technology and the real current situation because each bar of the present invention is described.
10, because each bar of the present invention is described, thus obtained design science rationally, simple and ingenious structure, effect stability be reliable, be beneficial to the beneficial effect of applying.
Description of drawings
Figure of description is the structural representation of the specific embodiment of the invention.
Label among the figure: 1, preceding conductor, 2, the back conductor, 3, cable insulation, 4, semi-conductive layer, 5, the cable metal cover, 6, cone-shaped body, 7, semi-conductive tape, 8, electrode, 9, cable, 10, para tape, 11, gauze screen, 12, the joint metallic sheath, 13, the encapsulating layer
Embodiment
Below in conjunction with Figure of description, the present invention is described in detail.Shown in Figure of description:
A kind of built-in local discharge sensor mainly is made of preceding conductor (1), back conductor (2), cable insulation (3), semi-conductive layer (4), cable metal cover (5), cone-shaped body (6), semi-conductive tape (7), electrode (8), cable (9), para tape (10), gauze screen (11), joint metallic sheath (12), encapsulating layer (13);
Described built-in local discharge sensor, its preceding conductor (1) is connected with back conductor (2) crimping, be provided with cable insulation (3) on the outside surface of its preceding conductor (1) and back conductor (2), the outside surface of its cable insulation (3) is provided with semi-conductive layer (4), the outside surface of its semi-conductive layer (4) is provided with cable metal cover (5), before its described after crimping on conductor (1) and back conductor (2) outside surface, all be provided with same cone-shaped body (6) in a fixed manner on the outside surface of semi-conductive layer (4) the termination section that the cable insulation (3) that conductor (1) and back conductor (2) upward are provided with before described upward is provided with, its semi-conductive tape (7) is wrapped in the position, termination of cone-shaped body (6), its electrode (8) is wrapped on the semi-conductive tape (7) at cone-shaped body (6) position, termination, its para tape (10) is wrapped in electrode (8) and goes up semi-conductive layer (4) surface that reaches on the cable insulation (3), its gauze screen (11) is wrapped in cable metal cover (5), para tape (10), cone-shaped body (6), on the surface of semi-conductive layer (4), its described joint metallic sheath (12) and cable metal cover (5) suit, be filled with encapsulating layer (13) with the can after coagulation and with the mode of adjacent elements bonding in its joint metallic sheath (12), its described cable (9) is electrically connected with electrode (8) employing.
Described built-in local discharge sensor, it is characterized in that: conductor (1) before described, back conductor (2) is cable bare wire shape structure, described cable insulation (3) is the insulation layer structure of cable, described semi-conductive layer (4) is the semiconduction stratiform structure of cable, described cable metal cover (5) is a metallic sheath tubulose structure, described cone-shaped body (6) is mirror image taper tubular structure for interlude is cylindric two ends section, described semi-conductive tape (7) is a banded structure, described electrode (8) is netted or schistose texture, described para tape (10) is a banded structure, described gauze screen (11) is a reticulate texture, described joint metallic sheath (12) is a metallic sheath tubulose structure, described encapsulating layer (13) is jello cannula-like structure for jelly after solidifying, and described cable (9) is for being applied to cable is implemented the cable-shaped structure of monitoring.
Described built-in local discharge sensor, it is characterized in that: be provided with cable insulation (3) on conductor (1) and the back conductor (2) before described, be provided with semi-conductive layer (4) on the cable insulation (3) of conductor (1) and back conductor (2) before described, be provided with cable metal cover (5) on the semi-conductive layer (4) of the cable insulation (3) of described preceding conductor (1) and back conductor (2).
Described built-in local discharge sensor is characterized in that: described cable metal cover (5), electrode (8), gauze screen (11), joint metallic sheath (12) are made by metal material.
The present invention has carried out property on probation examination after making and finishing, and through examination on probation, has obtained the good result of expection.
The above is preferred embodiment of the present invention only, is not that the present invention is done any pro forma restriction; The those of ordinary skill of all industry, but all shown in the by specification accompanying drawing and the above, and implement the present invention swimmingly; But all those skilled in the art in not breaking away from the technical solution of the present invention scope, when can utilizing the above technology contents that discloses, and a little change of making, modify the equivalent variations with differentiation, are equivalent embodiment of the present invention; Simultaneously, all foundations essence technology of the present invention all still belongs in the scope of technical scheme of the present invention change, modification and the differentiation etc. of any equivalent variations that above embodiment did.
Claims (4)
1, a kind of built-in local discharge sensor is characterized in that: mainly be made of preceding conductor (1), back conductor (2), cable insulation (3), semi-conductive layer (4), cable metal cover (5), cone-shaped body (6), semi-conductive tape (7), electrode (8), cable (9), para tape (10), gauze screen (11), joint metallic sheath (12), encapsulating layer (13);
Described built-in local discharge sensor, its preceding conductor (1) is connected with back conductor (2) crimping, be provided with cable insulation (3) on the outside surface of its preceding conductor (1) and back conductor (2), the outside surface of its cable insulation (3) is provided with semi-conductive layer (4), the outside surface of its semi-conductive layer (4) is provided with cable metal cover (5), before its described after crimping on conductor (1) and back conductor (2) outside surface, all be provided with same cone-shaped body (6) in a fixed manner on the outside surface of semi-conductive layer (4) the termination section that the cable insulation (3) that conductor (1) and back conductor (2) upward are provided with before described upward is provided with, its semi-conductive tape (7) is wrapped in the position, termination of cone-shaped body (6), its electrode (8) is wrapped on the semi-conductive tape (7) at cone-shaped body (6) position, termination, its para tape (10) is wrapped in electrode (8) and goes up semi-conductive layer (4) surface that reaches on the cable insulation (3), its gauze screen (11) is wrapped in cable metal cover (5), para tape (10), cone-shaped body (6), on the surface of semi-conductive layer (4), its described joint metallic sheath (12) and cable metal cover (5) suit, be filled with encapsulating layer (13) with the can after coagulation and with the mode of adjacent elements bonding in its joint metallic sheath (12), its described cable (9) is electrically connected with electrode (8) employing.
2. built-in local discharge sensor according to claim 1, it is characterized in that: conductor (1) before described, back conductor (2) is cable bare wire shape structure, described cable insulation (3) is the insulation layer structure of cable, described semi-conductive layer (4) is the semiconduction stratiform structure of cable, described cable metal cover (5) is a metallic sheath tubulose structure, described cone-shaped body (6) is mirror image taper tubular structure for interlude is cylindric two ends section, described semi-conductive tape (7) is a banded structure, described electrode (8) is netted or schistose texture, described para tape (10) is a banded structure, described gauze screen (11) is a reticulate texture, described joint metallic sheath (12) is a metallic sheath tubulose structure, described encapsulating layer (13) is jello cannula-like structure for jelly after solidifying, and described cable (9) is for being applied to cable is implemented the cable-shaped structure of monitoring.
3, built-in local discharge sensor according to claim 1, it is characterized in that: be provided with cable insulation (3) on conductor (1) and the back conductor (2) before described, be provided with semi-conductive layer (4) on the cable insulation (3) of conductor (1) and back conductor (2) before described, be provided with cable metal cover (5) on the semi-conductive layer (4) of the cable insulation (3) of described preceding conductor (1) and back conductor (2).
4, built-in local discharge sensor according to claim 1 and 2 is characterized in that: described cable metal cover (5), electrode (8), gauze screen (11), joint metallic sheath (12) are made by metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910119356A CN101545923A (en) | 2009-03-25 | 2009-03-25 | Built-in local discharge sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910119356A CN101545923A (en) | 2009-03-25 | 2009-03-25 | Built-in local discharge sensor |
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| CN101545923A true CN101545923A (en) | 2009-09-30 |
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| CN200910119356A Pending CN101545923A (en) | 2009-03-25 | 2009-03-25 | Built-in local discharge sensor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278755A (en) * | 2013-05-28 | 2013-09-04 | 国家电网公司 | Installing method of sensor for detecting XLPE (cross linked polyethylene) power cable partial discharge |
| CN105723574A (en) * | 2013-11-12 | 2016-06-29 | 住友电装株式会社 | Wire harness |
| CN108519543A (en) * | 2018-03-05 | 2018-09-11 | 广东电网有限责任公司佛山供电局 | A kind of plug-in cable connector partial discharge sensor and its installation method |
| CN108919076A (en) * | 2018-08-06 | 2018-11-30 | 广东电网有限责任公司 | A kind of bipolar implanted cable connector partial discharge sensor |
| CN109116200A (en) * | 2018-09-03 | 2019-01-01 | 深圳供电局有限公司 | A kind of high-voltage cable insulating connector of built-in very high frequency(VHF) partial discharge sensing device |
| CN110707653A (en) * | 2019-09-30 | 2020-01-17 | 南方电网科学研究院有限责任公司 | High-voltage cable insulation joint with built-in capacitive electrode |
| CN111337803A (en) * | 2020-03-20 | 2020-06-26 | 国网陕西省电力公司电力科学研究院 | Built-in high-voltage cable intermediate joint partial discharge detection and self-energy-taking integrated system and operation method thereof |
| CN112034269A (en) * | 2020-09-07 | 2020-12-04 | 广东电网有限责任公司广州供电局 | Electric field intensity measuring device suitable for cable termination fault detection |
| CN113471925A (en) * | 2021-06-30 | 2021-10-01 | 国网北京市电力公司 | Cable joint |
-
2009
- 2009-03-25 CN CN200910119356A patent/CN101545923A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278755B (en) * | 2013-05-28 | 2015-10-21 | 国家电网公司 | Sensor for partial discharge detection of XLPE power cable installation method |
| CN103278755A (en) * | 2013-05-28 | 2013-09-04 | 国家电网公司 | Installing method of sensor for detecting XLPE (cross linked polyethylene) power cable partial discharge |
| CN105723574A (en) * | 2013-11-12 | 2016-06-29 | 住友电装株式会社 | Wire harness |
| CN105723574B (en) * | 2013-11-12 | 2017-12-15 | 住友电装株式会社 | Wire harness |
| CN108519543A (en) * | 2018-03-05 | 2018-09-11 | 广东电网有限责任公司佛山供电局 | A kind of plug-in cable connector partial discharge sensor and its installation method |
| CN108919076B (en) * | 2018-08-06 | 2024-01-23 | 广东电网有限责任公司 | Bipolar implantable cable joint partial discharge sensor |
| CN108919076A (en) * | 2018-08-06 | 2018-11-30 | 广东电网有限责任公司 | A kind of bipolar implanted cable connector partial discharge sensor |
| CN109116200A (en) * | 2018-09-03 | 2019-01-01 | 深圳供电局有限公司 | A kind of high-voltage cable insulating connector of built-in very high frequency(VHF) partial discharge sensing device |
| CN109116200B (en) * | 2018-09-03 | 2024-03-19 | 深圳供电局有限公司 | High-voltage cable insulation joint with built-in very high frequency partial discharge sensing device |
| CN110707653A (en) * | 2019-09-30 | 2020-01-17 | 南方电网科学研究院有限责任公司 | High-voltage cable insulation joint with built-in capacitive electrode |
| CN111337803A (en) * | 2020-03-20 | 2020-06-26 | 国网陕西省电力公司电力科学研究院 | Built-in high-voltage cable intermediate joint partial discharge detection and self-energy-taking integrated system and operation method thereof |
| CN112034269A (en) * | 2020-09-07 | 2020-12-04 | 广东电网有限责任公司广州供电局 | Electric field intensity measuring device suitable for cable termination fault detection |
| CN113471925A (en) * | 2021-06-30 | 2021-10-01 | 国网北京市电力公司 | Cable joint |
| CN113471925B (en) * | 2021-06-30 | 2022-09-02 | 国网北京市电力公司 | Cable joint |
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| CB03 | Change of inventor or designer information |
Inventor after: Xiao Chuanqiang Inventor after: Dai Hongbin Inventor after: Cai Hongbo Inventor before: Xiao Chuanqiang Inventor before: Cai Hongbo Inventor before: Gao Haisong |
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Free format text: CORRECT: INVENTOR; FROM: XIAO CHUANQIANG CAI HONGBO GAO HAISONG TO: XIAO CHUANQIANG DAI HONGBIN CAIHONGBO |
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Application publication date: 20090930 |