CN204012536U - The cross interconnected case of cable of a kind of convenient operation and trystate phase transformation - Google Patents
The cross interconnected case of cable of a kind of convenient operation and trystate phase transformation Download PDFInfo
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- CN204012536U CN204012536U CN201420400909.1U CN201420400909U CN204012536U CN 204012536 U CN204012536 U CN 204012536U CN 201420400909 U CN201420400909 U CN 201420400909U CN 204012536 U CN204012536 U CN 204012536U
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- 230000009466 transformation Effects 0.000 title claims abstract description 10
- 230000017105 transposition Effects 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 21
- 230000001012 protector Effects 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the cross interconnected case of cable of a kind of convenient operation and trystate phase transformation, comprise casing, sheath protector, grounding connection sheet and earth terminal, six transposition binding posts that are hexagonal array are installed in casing, adjacent two transposition binding posts are the metal sheath of corresponding threephase cable insulating joint both sides respectively, connects wherein three transposition binding posts of the same side and connects respectively three sheath protectors; A swing handle is installed in casing, is uniformly distributed along the circumference three insulation connection handles are installed on swing handle, each insulation connection handle is all installed a metal connecting sheet, and the two ends of metal connecting sheet are all connected on transposition binding post.The utility model is a kind of simple in structure, cross interconnected case of cable line of using safety, handled easily, it can either meet the normal cross interconnected service requirement of cable line, reduce metal sheath induced voltage, can when testing, needs conveniently be switched to pass-through state again, facilitate staff to carry out test, promote operating efficiency.
Description
Technical field
The utility model relates to the power cable auxiliary device in power technology field, the cross interconnected case of cable of especially a kind of convenient operation and trystate phase transformation.
Background technology
In power cable line, metallic sheath induced voltage is relevant with its earthing mode.< < power engineering cable design rules > > (GB50217-2007) regulation: when the metallic sheath of cable metal jacket only has one point earth, the induced voltage of metallic sheath any point (while not taking effectively to prevent the safety measure of any contacting metal sheath of personnel) must not be greater than 50V; Except above-mentioned situation, must not be greater than 300V, and answer insulation against ground.In order to reduce the induced voltage of cable metal jacket to contiguous relief cable and telecommunication cable, mostly adopt at present cross interconnected wiring.Present stage, for high-tension cable, XLPE cable particularly, off-line partial discharge test just progressively development is risen.And for the partial discharge test based on reflection measurement, little local discharge signal is easy to decay, the cross interconnected joint in high-tension cable is exactly very strong decay source, and the result office of making puts pulse major part and is reflected, and can not pass in the measuring equipment of next part.Therefore, both affect the accuracy of test result, reduced again operating efficiency.
Summary of the invention
The purpose of this utility model is to make up the deficiencies in the prior art part, and the cable cross interconnected case of a kind of convenient operation that can guarantee test result precision and increase work efficiency with trystate phase transformation is provided.
The purpose of this utility model realizes by following technological means:
The cross interconnected case of cable of a kind of convenient operation and trystate phase transformation, comprise casing, sheath protector, grounding connection sheet and earth terminal, three sheath protectors are set in casing, these three sheath protectors connect earth terminal, binding post is positioned at casing outside, it is characterized in that: six transposition binding posts are installed in casing, these six transposition binding posts are hexagonal array, two adjacent transposition binding posts are the metal sheath of corresponding threephase cable insulating joint both sides respectively, connect wherein three transposition binding posts of the same side and connect respectively three sheath protectors by grounding connection sheet, a swing handle is installed in casing, this swing handle is positioned at the center of six transposition binding posts, on swing handle, be uniformly distributed along the circumference three insulation connection handles are installed, a metal connecting sheet is all installed in the outer end of each insulation connection handle, and the two ends of this metal connecting sheet are all connected on transposition binding post.
And, a pointer is installed, installation and operation sign and proof mark on casing, one of them sign of pointed on described swing handle.
And six described transposition binding posts are the metallic sheath of corresponding A, B, C threephase cable transition joint both sides respectively, represents mutually successively with A phase, a phase, B phase, b phase, C phase with c.
Advantage of the present utility model and good effect are:
1, this interconnected case is by operation swing handle, change cross interconnected joint into straight coupling, meeting on the basis of operation demand, realized the function of convenience conversion connection status, problems of the prior art have been solved, to staff, bring great convenience, and then improved test detection efficiency and stringency of test.
2, the pointer of this interconnected case is used to indicate current connection status, and its indication is simple and clear, and handled easily personnel grasp present case.
3, the utility model is a kind of simple in structure, cross interconnected case of cable line of using safety, handled easily, it can either meet the normal cross interconnected service requirement of cable line, reduce metal sheath induced voltage, can when testing, needs conveniently be switched to pass-through state again, facilitate staff to carry out test, promoted operating efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, describe embodiment of the present utility model in detail; It should be noted that, the present embodiment is narrative, is not determinate, can not limit protection range of the present utility model with this.
The cross interconnected case of cable of a kind of convenient operation and trystate phase transformation; comprise casing 9, sheath protector 6, grounding connection sheet 7 and earth terminal 8; three sheath protectors are set in casing; these three sheath protectors connect earth terminal; three sheath protectors bear switching overvoltage and thunderbolt for the protection of cable line, and binding post is positioned at casing outside.
Innovative point of the present utility model is: six transposition binding posts 4 are installed in casing, and these six transposition binding posts are hexagonal array, guarantees that metal connecting sheet still can be corresponding good with transposition binding post after rotating.Two adjacent transposition binding posts are the metal sheath of corresponding threephase cable insulating joint both sides respectively, by coaxial cable, is connected.Its concrete distribution is as follows; Six binding post metallic sheaths of corresponding A, B, C threephase cable transition joint both sides respectively that replace, represent, A phase wherein, B phase and C are the same side mutually successively mutually with c with A phase, a phase, B phase, b phase, C phase, remaining a phase, b phase and c are opposite side mutually.Three transposition binding posts that connect the same side wherein connect respectively three sheath protectors by grounding connection sheet, as shown in Figure 1 a phase, the b phase sheath protector that is connected with c.
A swing handle 1 is installed in casing, this swing handle is positioned at the center of six transposition binding posts, on swing handle, be uniformly distributed along the circumference three insulation connection handles 2 are installed, a metal connecting sheet 3 is all installed in the outer end of each insulation connection handle, and the two ends of this metal connecting sheet are all connected on transposition binding post.A pointer 5 is installed, installation and operation sign and proof mark on casing, one of them sign of pointed on swing handle.
Operation principle of the present utility model is:
1, running status: rotation swing handle, makes pointed running mark.Now, three metal connecting sheets connect respectively a phase and B phase, b phase and C phase, c phase and A phase, realize intersection commutation interconnected.
2, trystate: rotation swing handle, makes pointed proof mark.Now, insulation connection handle drives metal connecting sheet together to rotate, and three metal connecting sheets connect respectively A phase and a phase, B phase and b phase, C phase and c phase, realizes straight-through connection.
Claims (3)
1. one kind facilitates the cross interconnected case of cable moving with trystate phase transformation, comprise casing, sheath protector, grounding connection sheet and earth terminal, three sheath protectors are set in casing, these three sheath protectors connect earth terminal, binding post is positioned at casing outside, it is characterized in that: six transposition binding posts are installed in casing, these six transposition binding posts are hexagonal array, two adjacent transposition binding posts are the metal sheath of corresponding threephase cable insulating joint both sides respectively, connect wherein three transposition binding posts of the same side and connect respectively three sheath protectors by grounding connection sheet, a swing handle is installed in casing, this swing handle is positioned at the center of six transposition binding posts, on swing handle, be uniformly distributed along the circumference three insulation connection handles are installed, a metal connecting sheet is all installed in the outer end of each insulation connection handle, and the two ends of this metal connecting sheet are all connected on transposition binding post.
2. the cross interconnected case of cable of a kind of convenient operation according to claim 1 and trystate phase transformation, is characterized in that: a pointer is installed, installation and operation sign and proof mark on casing, one of them sign of pointed on described swing handle.
3. the cross interconnected case of cable of a kind of convenient operation according to claim 1 and trystate phase transformation, it is characterized in that: six described transposition binding posts are the metallic sheath of corresponding A, B, C threephase cable transition joint both sides respectively, represents mutually successively with A phase, a phase, B phase, b phase, C phase with c.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420400909.1U CN204012536U (en) | 2014-07-21 | 2014-07-21 | The cross interconnected case of cable of a kind of convenient operation and trystate phase transformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420400909.1U CN204012536U (en) | 2014-07-21 | 2014-07-21 | The cross interconnected case of cable of a kind of convenient operation and trystate phase transformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204012536U true CN204012536U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420400909.1U Active CN204012536U (en) | 2014-07-21 | 2014-07-21 | The cross interconnected case of cable of a kind of convenient operation and trystate phase transformation |
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| CN (1) | CN204012536U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093527A (en) * | 2016-07-13 | 2016-11-09 | 许继集团有限公司 | The mutual header of intelligent crossover, intelligent interconnection earthed system and earth current monitoring method |
| RU182923U1 (en) * | 2018-04-27 | 2018-09-06 | Общество с ограниченной ответственностью "ЭнергоТэк" | DEVICE FOR TRANSPOSITION OF POWER CABLE SCREENS |
| CN109428502A (en) * | 2017-08-22 | 2019-03-05 | 许继集团有限公司 | A kind of electricity getting device and method of cable sheath earthed system |
| WO2020078057A1 (en) * | 2018-10-17 | 2020-04-23 | 国网上海市电力公司 | Online correction device and method for power cable cross connection |
| CN115021172A (en) * | 2022-05-07 | 2022-09-06 | 国网江苏省电力有限公司常州供电分公司 | Cross interconnection box and cross interconnection system preventing wrong wiring |
-
2014
- 2014-07-21 CN CN201420400909.1U patent/CN204012536U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093527A (en) * | 2016-07-13 | 2016-11-09 | 许继集团有限公司 | The mutual header of intelligent crossover, intelligent interconnection earthed system and earth current monitoring method |
| CN109428502A (en) * | 2017-08-22 | 2019-03-05 | 许继集团有限公司 | A kind of electricity getting device and method of cable sheath earthed system |
| RU182923U1 (en) * | 2018-04-27 | 2018-09-06 | Общество с ограниченной ответственностью "ЭнергоТэк" | DEVICE FOR TRANSPOSITION OF POWER CABLE SCREENS |
| WO2020078057A1 (en) * | 2018-10-17 | 2020-04-23 | 国网上海市电力公司 | Online correction device and method for power cable cross connection |
| CN115021172A (en) * | 2022-05-07 | 2022-09-06 | 国网江苏省电力有限公司常州供电分公司 | Cross interconnection box and cross interconnection system preventing wrong wiring |
| CN115021172B (en) * | 2022-05-07 | 2023-10-27 | 国网江苏省电力有限公司常州供电分公司 | Cross interconnection box and cross interconnection system capable of preventing misconnection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Patentee after: State Grid Corporation of China Patentee after: State Grid Tianjin Electric Power Company Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: State Grid Tianjin Electric Power Company |