CN203722189U - 400A-load-current switching device used for 10kV power distribution network - Google Patents
400A-load-current switching device used for 10kV power distribution network Download PDFInfo
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- CN203722189U CN203722189U CN201420086034.2U CN201420086034U CN203722189U CN 203722189 U CN203722189 U CN 203722189U CN 201420086034 U CN201420086034 U CN 201420086034U CN 203722189 U CN203722189 U CN 203722189U
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Abstract
Disclosed is a 400A-load-current switching device used for a 10kV power distribution network. The device includes a switching-box body (1), a cable input terminal (2) and a cable outlet terminal (3), which are capable of externally connecting a cable. A load current switch (5) is arranged on the switching-box body. The cable input terminal includes two input joint groups which are connected in parallel, wherein each input joint group includes three input joints. The cable outlet terminal includes three output joints. Input lines connected with the input joints of the switching box adopt flexible cables (4) and the output joints are used in supporting of common crosslinked cable joints. The first group of 200A-load-current three-phase flexible cables and the second group of 200A-load-current three-phase flexible cables are connected to the two input joint groups of the switching box respectively after parallel connection of corresponding identical phases and output 400A load current via the switching box and then the common crosslinked cable joints are connected. The 400A-load-current switching device used for the 10kV power distribution network is capable of realizing 400A-load-current bypass-method hot-line work. The device is simple and practical in simple, and safe and reliable.
Description
Technical field
The utility model belongs to bypass live line working technical field, and the load while load current being reached to 400A while being adapted at 10kV distribution line employing uninterrupted operation shifts and cut-offs.
Background technology
It is the main development direction of current power distribution live-wire that 10kV power distribution network adopts uninterrupted operation technology.In operation process, need to adopt live line working means bypass one section of cable line in parallel on original charged circuit to replace after its operation, the one section of circuit that disconnects former operation does not make it charged and become behind non-Electric region the have a power failure service work of mode of its relevant device.Interconnecting device is electrical connection important in live line in parallel section and cut-offs equipment.At present the domestic 10kV distribution line that carries out is while adopting the method for bypass live line working, and the load current interconnecting device adopting is generally no more than 200A, completes the method for bypass live line working for the power distribution network basic routing line that exceedes this numerical value is more difficult.For most of power distribution network basic routing line, its load current is generally less than 400A.Therefore need to improve the load current ability of existing interconnecting device, develop a kind of 400A load current interconnecting device of the 10kV of can be used for power distribution network.
Summary of the invention
The deficiency that when the purpose of this utility model is to solve above-mentioned existing bypass live line working, interconnecting device load current ability exists, provides a kind of 400A load current interconnecting device that can be used for 10kV power distribution network of simple and practical, applied range.
The technical scheme that realizes above-mentioned purpose is as follows:
For the 400A load current interconnecting device of 10kV power distribution network, include transfer box main body, be arranged at long cable section of ingoing line terminal and the cable outlet terminal of the connected external cable in main body, in main body, be provided with load current switch; Described long cable section of ingoing line terminal includes the input adapter group of two groups of parallel connections, and every group of input adapter group has three input adapters; Described outlet terminal includes three out splice going splices; The input inlet wire that connects transfer box input adapter adopts flexible cable, and out splice going splice and common crosslinked cable joint support the use; The three-phase flexible cable of the three-phase flexible cable that 200A load current is first group and second group of 200A load current accesses respectively two groups of input adapters of transfer box after with corresponding identical being in parallel, and is connected with common crosslinked cable through the load current of transfer box output 400A.
The utility model can be realized the method for bypass live line working of load current 400A, the trolley wire that not only can be used as load current and be 200A is carried out bypass live line working and is used, also can, for the trunk distribution line that trolley wire load current is 400A uses, effectively expand 10kV power distribution network bypass live line working scope.It is simple and practical, safe and reliable, has effectively overcome current the method for bypass live line working and be limited to the technical limitations of 200A load current, has expanded bypass live line working scope.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Further set forth content of the present utility model below in conjunction with Figure of description.
As shown in Figure 1, the utility model includes transfer box main body 1, is arranged at long cable section of ingoing line terminal 2 and the cable outlet terminal 3 of the connected external cable in main body, cut-offs the load current switch 5 of use when promising bypass live line working load transfer is set in main body.Described long cable section of ingoing line terminal 2 includes the input adapter group of two groups of parallel connections, and every group of input adapter group has three input adapters, amounts to six input adapter 2a, 2b, 2c, 2d, 2e, 2f; Described outlet terminal 3 includes three out splice going splice 3a, 3b, 3c.The input inlet wire that connects transfer box input adapter adopts flexible cable 4, and out splice going splice and common crosslinked cable joint 6 support the use.The three-phase flexible cable 2d of three-phase flexible cable 2a that 200A load current is first group, 2b, 2c and second group of 200A load current, 2e, 2f access respectively two groups of input adapters of transfer box after with corresponding identical being in parallel, and are connected with common crosslinked cable through the load current of transfer box output 400A.
Using method for the 400A load current interconnecting device of 10kV power distribution network is as follows: be 200A by every group of load current of inlet wire side two groups altogether six roots of sensation bypass live line working flexible cables 4 be connected with six input adapters of transfer box main body long cable section of ingoing line terminal 2, three out splice going splices of cable outlet terminal 3 are connected use with one group of three common crosslinked cable, open control overhead current switch 5, taking from the electric current output that flexible cable that on 10kV overhead wire 7 two groups loads are 200A electric current changes 400A after with parallel way access transfer box into is connected with common crosslinked cable, while realizing live line working, 400 A load currents shift and control.
Claims (1)
1. for the 400A load current interconnecting device of 10kV power distribution network, it is characterized in that, include transfer box main body (1), be arranged at long cable section of ingoing line terminal (2) and the cable outlet terminal (3) of the connected external cable in main body, in main body, be provided with load current switch (5); Described long cable section of ingoing line terminal (2) includes the input adapter group of two groups of parallel connections, and every group of input adapter group has three input adapters; Described outlet terminal (3) includes three out splice going splices; The input inlet wire that connects transfer box input adapter adopts flexible cable (4), and out splice going splice and common crosslinked cable joint support the use; The three-phase flexible cable of the three-phase flexible cable that 200A load current is first group and second group of 200A load current accesses respectively two groups of input adapters of transfer box after with corresponding identical being in parallel, and is connected with common crosslinked cable through the load current of transfer box output 400A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420086034.2U CN203722189U (en) | 2014-02-27 | 2014-02-27 | 400A-load-current switching device used for 10kV power distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420086034.2U CN203722189U (en) | 2014-02-27 | 2014-02-27 | 400A-load-current switching device used for 10kV power distribution network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203722189U true CN203722189U (en) | 2014-07-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420086034.2U Withdrawn - After Issue CN203722189U (en) | 2014-02-27 | 2014-02-27 | 400A-load-current switching device used for 10kV power distribution network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203722189U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840422A (en) * | 2014-02-27 | 2014-06-04 | 云南电网公司带电作业分公司 | 400 A load current switching device for 10 kV power distribution network and application method thereof |
| CN106451220A (en) * | 2016-12-01 | 2017-02-22 | 华北电力科学研究院有限责任公司 | Bypass equipment and method for live replacement of equipment on same-tower multi-loop pole tower |
-
2014
- 2014-02-27 CN CN201420086034.2U patent/CN203722189U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103840422A (en) * | 2014-02-27 | 2014-06-04 | 云南电网公司带电作业分公司 | 400 A load current switching device for 10 kV power distribution network and application method thereof |
| CN103840422B (en) * | 2014-02-27 | 2016-03-16 | 云南电网有限责任公司带电作业分公司 | For 400A load current interconnecting device and the using method of 10kV power distribution network |
| CN106451220A (en) * | 2016-12-01 | 2017-02-22 | 华北电力科学研究院有限责任公司 | Bypass equipment and method for live replacement of equipment on same-tower multi-loop pole tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140716 Effective date of abandoning: 20160316 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |