CN103840422A - 400 A load current switching device for 10 kV power distribution network and application method thereof - Google Patents
400 A load current switching device for 10 kV power distribution network and application method thereof Download PDFInfo
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- CN103840422A CN103840422A CN201410068586.5A CN201410068586A CN103840422A CN 103840422 A CN103840422 A CN 103840422A CN 201410068586 A CN201410068586 A CN 201410068586A CN 103840422 A CN103840422 A CN 103840422A
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Abstract
The invention provides a 400 A load current switching device for a 10 kV power distribution network and an application method thereof. The 400 A load current switching device comprises a switching box body (1), a cable inlet terminal (2) and a cable outlet terminal (3), wherein the cable inlet terminal (2) and the cable outlet terminal (3) can be connected with external cables. A load current switch (5) is arranged on the body. The cable inlet terminal comprises two input connector sets connected in parallel. Each input connector set is provided with three input connectors. The cable outlet terminal comprises three output connectors. Input inlet cables connected with the input connectors of the switching box body are flexible cables (4). The output connectors are used in cooperation with common crosslinked cable connectors. A first set of three-phase flexible cables with 200 A load current and a second set of three-phase flexible cables with 200 A load current are connected in parallel through the same corresponding phases and then are connected with two sets of input connectors of the switching box body and then connected with common crosslinked cables through 400 A load current outputted by the switching box body. Through the 400 A load current switching device, bypass hot-line work with 400 A load current can be achieved, and the technical restriction that existing bypass hot-line work is limited to 200 A load current is effectively overcome.
Description
Technical field
The invention belongs to bypass live line working technical field, 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 that can be used for 10kV power distribution network of convenient operation.
Summary of the invention
The deficiency that while the object of the invention is to solve above-mentioned existing bypass live line working, interconnecting device load current ability exists, provides a kind of the 400A load current interconnecting device and the using method thereof 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.
Be used for the using method of the 400A load current interconnecting device of 10kV power distribution network, be be 200A by inlet wire side by every group of load current two groups altogether six roots of sensation bypass live line working flexible cables be connected with six input adapters of transfer box main body long cable section of ingoing line terminal, three out splice going splices of cable outlet terminal are connected use with one group of three common crosslinked cable, by control overhead current switch, taking from the electric current output that flexible cable that on 10kV overhead wire 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, load shifts.
The present invention can realize 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.
Accompanying drawing explanation
Fig. 1 is the structural representation of present device.
Embodiment
Further set forth content of the present invention below in conjunction with Figure of description.
As shown in Figure 1, the present invention includes 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, arrange and when promising bypass live line working load shifts, cut-off the load current switch 5 of use.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.
The method of the 400A load current interconnecting device for 10kV power distribution network of the present invention is as follows: two groups that are 200A by every group of load current of inlet wire side are total to six roots of sensation bypass live line working flexible cable 4 and are 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 kV 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 (2)
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.
2. use the method for the 400A load current interconnecting device of 10kV power distribution network as claimed in claim 1, it is characterized in that, two groups that are 200A by inlet wire side by every group of load current are total to six roots of sensation bypass live line working flexible cable and are 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, by control overhead current switch (5), taking from the electric current output that flexible cable that on 10 kV overhead wires 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, load shifts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410068586.5A CN103840422B (en) | 2014-02-27 | 2014-02-27 | For 400A load current interconnecting device and the using method of 10kV power distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410068586.5A CN103840422B (en) | 2014-02-27 | 2014-02-27 | For 400A load current interconnecting device and the using method of 10kV power distribution network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103840422A true CN103840422A (en) | 2014-06-04 |
| CN103840422B CN103840422B (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410068586.5A Active CN103840422B (en) | 2014-02-27 | 2014-02-27 | For 400A load current interconnecting device and the using method of 10kV power distribution network |
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| CN (1) | CN103840422B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105720680B (en) * | 2014-12-02 | 2018-09-04 | 国家电网公司 | A kind of cell DC load transfer equipment and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2754244Y (en) * | 2004-06-04 | 2006-01-25 | 上海久隆电力（集团）有限公司 | Electric cable branch box with load switch |
| EP2280464A1 (en) * | 2009-07-31 | 2011-02-02 | Abb B.V. | Cable System |
| CN202474797U (en) * | 2012-03-19 | 2012-10-03 | 哈尔滨亿汇达电气科技发展股份有限公司 | High voltage cable distribution box |
| CN203722189U (en) * | 2014-02-27 | 2014-07-16 | 云南电网公司带电作业分公司 | 400A-load-current switching device used for 10kV power distribution network |
-
2014
- 2014-02-27 CN CN201410068586.5A patent/CN103840422B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2754244Y (en) * | 2004-06-04 | 2006-01-25 | 上海久隆电力（集团）有限公司 | Electric cable branch box with load switch |
| EP2280464A1 (en) * | 2009-07-31 | 2011-02-02 | Abb B.V. | Cable System |
| CN202474797U (en) * | 2012-03-19 | 2012-10-03 | 哈尔滨亿汇达电气科技发展股份有限公司 | High voltage cable distribution box |
| CN203722189U (en) * | 2014-02-27 | 2014-07-16 | 云南电网公司带电作业分公司 | 400A-load-current switching device used for 10kV power distribution network |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105720680B (en) * | 2014-12-02 | 2018-09-04 | 国家电网公司 | A kind of cell DC load transfer equipment and method |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103840422B (en) | 2016-03-16 |
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Address after: 650051, Baita Road, Panlong District, Yunnan, Kunming, 201 Applicant after: YUNNAN POWER GRID Co.,Ltd. CHARGED OPERATION BRANCH Address before: 650051, Baita Road, Panlong District, Yunnan, Kunming, 201 Applicant before: LIVE-WORKING BRANCH OF YUNNAN GRID CO. |
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Address after: No.1 yangxianpo, Wuhua District, Kunming, Yunnan 650033 Patentee after: Transmission branch of Yunnan Power Grid Co.,Ltd. Address before: 650051 No. 201, Baita Road, Panlong District, Kunming City, Yunnan Province Patentee before: YUNNAN POWER GRID Co.,Ltd. CHARGED OPERATION BRANCH |
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