CN203858331U - Cable connector composite dielectric surface discharge simulation device - Google Patents
Cable connector composite dielectric surface discharge simulation device Download PDFInfo
- Publication number
- CN203858331U CN203858331U CN201420269500.0U CN201420269500U CN203858331U CN 203858331 U CN203858331 U CN 203858331U CN 201420269500 U CN201420269500 U CN 201420269500U CN 203858331 U CN203858331 U CN 203858331U
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- electrode
- creeping discharge
- complex media
- cable splice
- analogue means
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- 239000002131 composite material Substances 0.000 title abstract 6
- 238000004088 simulation Methods 0.000 title abstract 3
- 238000009413 insulation Methods 0.000 claims abstract description 55
- 239000011347 resin Substances 0.000 claims abstract description 24
- 229920005989 resin Polymers 0.000 claims abstract description 24
- 239000004703 cross-linked polyethylene Substances 0.000 claims abstract description 21
- 229920003020 cross-linked polyethylene Polymers 0.000 claims abstract description 21
- 239000012212 insulator Substances 0.000 claims abstract description 21
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 18
- 239000012535 impurity Substances 0.000 claims description 8
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 19
- 230000001681 protective effect Effects 0.000 abstract 2
- 239000004945 silicone rubber Substances 0.000 abstract 2
- 230000015556 catabolic process Effects 0.000 description 7
- 230000007547 defect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011499 joint compound Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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- Testing Relating To Insulation (AREA)
Abstract
The utility model relates to a cable connector composite dielectric surface discharge simulation device. The cable connector composite dielectric surface discharge simulation device comprises a cable connector composite dielectric surface discharge model, a protective sphere gap device, a fuse and a switching switch, the cable connector composite dielectric surface discharge model comprises a resin insulation upper cover plate, an XLPE insulator, an electrode assembly, a silicone rubber insulator and a resin insulation lower cover plate arranged in sequence from top to bottom, the electrode assembly comprises a high voltage electrode, a grounding electrode, and an adjusting handle fixedly connected with the grounding electrode, the high voltage electrode, the grounding electrode and the adjusting handle are positioned at the same plane, the protective sphere gap device and the surface discharge model are connected in parallel, and the switching switch capable of remote control is connected with the high voltage electrode via the series connection with the fuse. According to the device, the phenomena of cable connector composite dielectric surface discharge in different operating conditions can be simulated, the XLPE insulator and the silicone rubber insulator can be conveniently replaced, and repeated surface discharge tests can be conducted.
Description
Technical field
The utility model relates to power test technical field, particularly a kind of cable splice complex media creeping discharge analogue means.
Background technology
A large amount of employing XLPE power cable power transmission and distribution in China's urban distribution network.But in the insulation system of this cable, tend to due to the difficulty in process technology or impure air gap and the harmfulness impurity of existing of starting material, at these air gaps and the most advanced and sophisticated place of impurity, very easily produce partial discharge phenomenon.The accident of the power cable in electric system mainly occurs in its joint, due to the execution conditions of cable splice and the reason of operating technique, can produce such as bubble, impurity, burr, cut and along the concentrated defect of face electric field, and then produce shelf depreciation under the effect of high-voltage electric field.XLPE power cable connector is multi-layer solid complex media insulation system, and the statistical study of national XLPE power cable operation troubles type and quantity is nearly ten years shown, the ratio of cable splice breakdown fault accounts for 31% of cable operation troubles sum.Wherein because causing joint breakdown fault, multi-layer solid complex media creeping discharge reason accounts for the more than 97% of cable splice fault sum.Cable splice creeping discharge is a kind of comparatively common defect type that causes insulation flashover, insulation breakdown, and therefore to cable splice, creeping discharge is studied, and for the safe operation that guarantees electrical network, has great importance.
At present, carry out the artificial manufacturing defect cable of the main employing of cable splice complex media creeping discharge test, by analog insulations such as access defective cable, moist contaminated insulators, destroy and cause penetrability to puncture grounding phenomenon, although said method is consistent with the actual central creeping discharge phenomenon occurring, can be used for concluding the Fault of Insulating Breakdown feature that creeping discharge causes, but said method single test causes defective cable insulation breakdown, can not repeat, for experiment work brings inconvenience.
Utility model content
The purpose of this utility model is to provide a kind ofly can arrange cable splice compound interface and have the number of drawbacks such as cut, burr, filth, metallic impurity for cable splice complex media creeping discharge analogue means, and can repeat test.
For achieving the above object, the utility model adopts following technical scheme:
A cable splice complex media creeping discharge analogue means, comprises cable splice complex media creeping discharge model, protection ball gap, fuse and fling-cut switch; Described cable splice complex media creeping discharge model comprises insulation resin upper cover plate, XLPE insulator, electrode assemblie, silicon rubber insulation body, the insulation resin lower cover from top to bottom setting gradually; Above-mentioned electrode assemblie comprises and is in conplane high-field electrode and ground-electrode; Above-mentioned protection ball gap device and cable splice complex media creeping discharge model are in parallel; Above-mentioned fuse is connected in the middle of fling-cut switch and high-field electrode.
Above-mentioned fling-cut switch is controlled divide-shut brake by telepilot and is realized the input of creeping discharge model and exit.
Above-mentioned insulation resin upper cover plate is by insulated bolt and the detachable connection insulation resin of insulation nut lower cover, and XLPE insulator, high-field electrode and ground-electrode, silicon rubber insulation body are anchored between insulation resin upper cover plate and insulation resin lower cover.
Above-mentioned high-field electrode and ground-electrode are brass material.
Above-mentioned high-field electrode and ground-electrode are disc electrode.
Above-mentioned disc electrode thickness is 1mm.
Between above-mentioned XLPE insulator, silicon rubber insulation body, be provided with filth or metallic impurity.
Above-mentioned XLPE insulator, silicon rubber insulation body arrange cut and/or burr.
Above-mentioned fling-cut switch is comprised of the vacuum circuit breaker of remote-controlled operation or contactor, operating power, is arranged on circuit A, B, C three-phase any mutually and between complex media creeping discharge model.
Ground-electrode is connected with for regulating the adjusting handle of spacing between high-field electrode and ground-electrode.
Compared with prior art, the utlity model has following beneficial effect:
The utility model can the creeping discharge in all cases of dummycable joint, can be used for setting up power cable fault analogue test platform, simulate the cable splice complex media creeping discharge phenomenon under different Run-time scenarios, for cable splice Faults Characteristic Analysis and fault handling strategy, fault handling testing of equipment, checking provide true type experimental enviroment.Creeping discharge causes after insulation breakdown, can make its insulation recovery by replacing XLPE insulator, silicon rubber insulation body, carries out revision test.
Accompanying drawing explanation
Accompanying drawing 1 is wiring schematic diagram of the present utility model;
Accompanying drawing 2 is the structural representation of cable splice complex media creeping discharge model.
Wherein, 1 is fling-cut switch; 2 is fuse; 3 is high-field electrode; 4 is ground-electrode; 5 is insulation resin upper cover plate; 6 is XLPE insulator; 7 is insulation resin lower cover; 8 is silicon rubber insulation body; 9 is insulated bolt; 10 is insulation nut; 11 is adjusting handle; 12 is electrode gap; 13 is protection ball gap.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of cable splice complex media creeping discharge analogue means, comprises cable splice complex media creeping discharge model, protection ball gap device 13, fuse 2 and fling-cut switch 1.Fling-cut switch 1 is comprised of the vacuum circuit breaker of remote-controlled operation or contactor, operating power; be arranged between circuit A, B, any phase of C three-phase and complex media creeping discharge model; creeping discharge model high-field electrode 3 is connected with fling-cut switch 1 by series connection fuse 2; the direct ground connection of ground-electrode 4, fuse 2 plays overcurrent protection effect in process of the test.By telepilot, controlling fling-cut switch 1 divide-shut brake realizes the input of creeping discharge model and exits.Protection ball gap device 13 and creeping discharge model are in parallel, and at the trial for the protection of creeping discharge model, before on-test, protection ball gap 13 is adjusted to the position than the high 10-15% of trial voltage.
As shown in Figure 2, cable splice complex media creeping discharge model from top to bottom arranges insulation resin upper cover plate 5, XLPE insulator 6, electrode assemblie, silicon rubber insulation body 8, insulation resin lower cover 7; Described electrode assemblie comprises the adjusting handle 11 that is in conplane high-field electrode 3, ground-electrode 4 and is fixedly connected with ground-electrode 4; High-field electrode 3 is brass material and is the disc electrode that 1mm is thick with ground-electrode 4; , can when applying trial voltage, there is creeping discharge in the distance regulating between high-field electrode 3 and ground-electrode 4 by adjusting handle 11 before test; Silicon rubber insulation body 8 is placed in above insulation resin lower cover 7, and high-field electrode 3 and ground-electrode 4 are placed in above silicon rubber insulation body 8, on high-field electrode 3 and ground-electrode 4, covers XLPE insulator 6, places insulation resin upper cover plate 5 on XLPE insulator 6; Insulation resin upper cover plate 5 is by insulated bolt 9 and the detachable connection insulation resin of insulation nut 10 lower cover 7, by screwing insulated bolt 9, make insulation resin upper cover plate 5, XLPE insulator 6, high-field electrode 3 and ground-electrode 4, silicon rubber insulation body 8, insulation resin lower cover 7 close contacts.
Before test, can at electrode gap 12, fill filthy, metallic impurity according to testing requirements, defects filthy, metallic impurity that dummycable joint compound interface exists.
Before test, can on XLPE insulator 6, silicon rubber insulation body 8, artificially manufacture cut, burr according to testing requirements, in order to dummycable joint compound interface, have the defect of cut, burr.
Use a teleswitch and control fling-cut switch 1 combined floodgate, cable splice complex media creeping discharge analogue means starts test, controls fling-cut switch 1 separating brake, and cable splice complex media creeping discharge analogue means exits test.
A creeping discharge, cause after the test of insulation breakdown, removable insulated bolt 9, insulation nut 10, change XLPE insulator 6, silicon rubber insulation body 8, makes the utility model insulation recovery.So can repeat repeatedly creeping discharge test.
Claims (9)
1. a cable splice complex media creeping discharge analogue means, is characterized in that: comprise cable splice complex media creeping discharge model, protection ball gap (13), fuse (2) and fling-cut switch (1);
Described cable splice complex media creeping discharge model comprises insulation resin upper cover plate (5), XLPE insulator (6), electrode assemblie, silicon rubber insulation body (8), the insulation resin lower cover (7) from top to bottom setting gradually;
Described electrode assemblie comprises and is in conplane high-field electrode (3) and ground-electrode (4);
Described protection ball gap device (13) and cable splice complex media creeping discharge model are in parallel;
It is middle with high-field electrode (3) that described fuse (2) is connected on fling-cut switch (1).
2. a kind of cable splice complex media creeping discharge analogue means as claimed in claim 1, it is characterized in that: insulation resin upper cover plate (5) is by insulated bolt (9) and insulation nut (10) detachable connection insulation resin lower cover (7), and XLPE insulator (6), high-field electrode (3) and ground-electrode (4), silicon rubber insulation body (8) are anchored between insulation resin upper cover plate (5) and insulation resin lower cover (7).
3. a kind of cable splice complex media creeping discharge analogue means as claimed in claim 1, is characterized in that: described high-field electrode (3) is brass material with ground-electrode (4).
4. a kind of cable splice complex media creeping discharge analogue means as claimed in claim 1, is characterized in that: described high-field electrode (3) is disc electrode with ground-electrode (4).
5. a kind of cable splice complex media creeping discharge analogue means as claimed in claim 4, is characterized in that: described disc electrode thickness is 1mm.
6. a kind of cable splice complex media creeping discharge analogue means as claimed in claim 1, is characterized in that: described XLPE insulator (6), silicon rubber insulation body are provided with filth or metallic impurity between (8).
7. a kind of cable splice complex media creeping discharge analogue means as claimed in claim 1, is characterized in that: described XLPE insulator (6), silicon rubber insulation body arrange cut and/or burr on (8).
8. a kind of cable splice complex media creeping discharge analogue means as claimed in claim 1, it is characterized in that: described fling-cut switch is comprised of the vacuum circuit breaker of remote-controlled operation or contactor, operating power, be arranged on circuit A, B, C three-phase any mutually and between complex media creeping discharge model.
9. a kind of cable splice complex media creeping discharge analogue means as claimed in claim 1, is characterized in that: ground-electrode (4) is connected with for regulating the adjusting handle (11) of spacing between high-field electrode (3) and ground-electrode (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269500.0U CN203858331U (en) | 2014-05-23 | 2014-05-23 | Cable connector composite dielectric surface discharge simulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269500.0U CN203858331U (en) | 2014-05-23 | 2014-05-23 | Cable connector composite dielectric surface discharge simulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203858331U true CN203858331U (en) | 2014-10-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420269500.0U Expired - Lifetime CN203858331U (en) | 2014-05-23 | 2014-05-23 | Cable connector composite dielectric surface discharge simulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203858331U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678130A (en) * | 2015-03-11 | 2015-06-03 | 中国科学院上海硅酸盐研究所 | Fixture capable of being used for electrical performance test under high voltage |
| CN107293869A (en) * | 2017-07-12 | 2017-10-24 | 厦门市众慧悦和科技有限公司 | The insulation protecting device of snap joint in the middle of a kind of flexible cable |
| CN108710066A (en) * | 2018-05-18 | 2018-10-26 | 青岛科技大学 | A kind of interface discharging detection device and its method |
| CN109031068A (en) * | 2018-08-13 | 2018-12-18 | 清华大学深圳研究生院 | A kind of Hi-pot test device and method at compound inslation interface |
| CN110220808A (en) * | 2019-07-15 | 2019-09-10 | 四川大学 | A kind of anti-explosion box for cable middle connector explosion-proof performance detection method and device based on interface arc burning |
| CN110361640A (en) * | 2019-08-05 | 2019-10-22 | 国网宁夏电力有限公司 | A kind of fusing type arrester group experimental rig |
| CN110568227A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | Plug-in device for measuring partial discharge inside cable |
| CN110568322A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | Method for preparing cable partial discharge defect model by adopting silicon rubber |
| CN113740676A (en) * | 2021-07-27 | 2021-12-03 | 中国电力科学研究院有限公司 | Cable joint double-layer medium interface flashover voltage test device |
-
2014
- 2014-05-23 CN CN201420269500.0U patent/CN203858331U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678130A (en) * | 2015-03-11 | 2015-06-03 | 中国科学院上海硅酸盐研究所 | Fixture capable of being used for electrical performance test under high voltage |
| CN104678130B (en) * | 2015-03-11 | 2017-07-14 | 中国科学院上海硅酸盐研究所 | Available for the fixture for carrying out electrical performance testing under high voltages |
| CN107293869A (en) * | 2017-07-12 | 2017-10-24 | 厦门市众慧悦和科技有限公司 | The insulation protecting device of snap joint in the middle of a kind of flexible cable |
| CN107293869B (en) * | 2017-07-12 | 2023-06-13 | 厦门市众慧悦和科技有限公司 | Insulation protection device of quick-operation joint in middle of flexible cable |
| CN108710066A (en) * | 2018-05-18 | 2018-10-26 | 青岛科技大学 | A kind of interface discharging detection device and its method |
| WO2019080494A1 (en) * | 2018-05-18 | 2019-05-02 | 青岛科技大学 | Interface discharge detection apparatus and method therefor |
| CN110568227A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | Plug-in device for measuring partial discharge inside cable |
| CN110568322A (en) * | 2018-06-06 | 2019-12-13 | 中国石油化工股份有限公司 | Method for preparing cable partial discharge defect model by adopting silicon rubber |
| CN109031068A (en) * | 2018-08-13 | 2018-12-18 | 清华大学深圳研究生院 | A kind of Hi-pot test device and method at compound inslation interface |
| CN110220808A (en) * | 2019-07-15 | 2019-09-10 | 四川大学 | A kind of anti-explosion box for cable middle connector explosion-proof performance detection method and device based on interface arc burning |
| CN110361640A (en) * | 2019-08-05 | 2019-10-22 | 国网宁夏电力有限公司 | A kind of fusing type arrester group experimental rig |
| CN113740676A (en) * | 2021-07-27 | 2021-12-03 | 中国电力科学研究院有限公司 | Cable joint double-layer medium interface flashover voltage test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240201 Address after: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee after: STATE GRID CORPORATION OF CHINA Country or region after: China Patentee after: STATE GRID SHAANXI ELECTRIC POWER Research Institute Patentee after: National Network (Xi'an) Environmental Protection Technology Center Co.,Ltd. Address before: 100761 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Patentee before: State Grid Corporation of China Country or region before: China Patentee before: STATE GRID SHAANXI ELECTRIC POWER Research Institute |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141001 |