CN102480109A - Method for replacing 10 kV distribution line lead with load - Google Patents
Method for replacing 10 kV distribution line lead with load Download PDFInfo
- Publication number
- CN102480109A CN102480109A CN2010105631914A CN201010563191A CN102480109A CN 102480109 A CN102480109 A CN 102480109A CN 2010105631914 A CN2010105631914 A CN 2010105631914A CN 201010563191 A CN201010563191 A CN 201010563191A CN 102480109 A CN102480109 A CN 102480109A
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- Prior art keywords
- lead
- new
- distribution line
- load
- changed
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000004020 conductor Substances 0.000 claims description 19
- 238000009413 insulation Methods 0.000 claims description 8
- 241000606750 Actinobacillus Species 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 238000007596 consolidation process Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 description 3
- 239000012211 strain insulator Substances 0.000 description 3
- 239000012212 insulator Substances 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Landscapes
- Electric Cable Installation (AREA)
Abstract
The invention provides a method for replacing a 10 kV distribution line lead with load, belonging to the power system live-line work technology field. Bypass work technology is employed, a line releasing apparatus is installed in a failed strain section and is used for releasing a short wire and a new lead, and simultaneously, by utilizing the apparatus, replacing an old lead with the new lead is completed. Compared with a widely-known lead replacement method, cutting off the load is not needed in the method of the invention, and replacement of the lead can be completed without influencing normal power utilization of a user.
Description
Technical field
The invention belongs to electric power system live line working technical field, refer in particular to the method that a kind of on-load is changed 10kV overhead distribution line line conductor.
Background technology
10kV overhead distribution long term exposure occurring in nature produce aging, because many factors such as construction quality problem and regular maintenance are not enough, load is excessive, outside destroy cause contact to be prone to the generation scaling loss; Thereby injure the main line of distribution line, this kind situation happens occasionally.If the power failure restringing, then because workload is big, the maintenance time that causes power failure is long, will have a strong impact on the power supply reliability index.Cause bigger economic loss to power supply enterprise, simultaneously interruption duration is long, and can't estimate especially to the social negative effect that enterprise brings, and especially occurs in two returning or the circuit of many times and frame, and its influence and loss also will be multiplied.
Summary of the invention
In order to solve above problem, invent the method that a kind of on-load is changed 10kV distribution line lead, when distribution line breaks down, be with 10kV distribution line load current, change the insulated conductor of damage.
The technical solution adopted for the present invention to solve the technical problems is:
1, in the strain section of fault, actinobacillus device is installed, is used to discharge shorting stub and new lead.Utilize this device to accomplish the replacement of new and old lead simultaneously.
Behind the short circuit fault phase conductor, the fault point is checked that 2, consolidation process prevents broken string in case of necessity.
3, the short circuit point place in both sides, after the disengagement failure phase conductor made it out of service, the insulation releasing pulley was installed at the straight line pole cross-arm place in faulty section respectively, and the fault phase conductor is imported releasing pulley.
4, through shaft insulation actinobacillus device, utilize conductor jointer that new, old lead is connected, apply tractive effort, new lead reaches on the bar, and old lead retreats to the replacement that realizes new and old lead under the bar.
5, new lead puts into operation, breaks off interim shorting stub, and off-the-line reclaims.
The method is applicable to that also plain conductor is replaced by insulated conductor, is the insulated conductor of big model with operating track replacement.
The benefit that the present invention produced is: a present average load is greater than 300 amperes 10 KV distribution circuits, if having a power failure the migration circuit, from handling the power failure formality to handing over order to send electricity to need 8-10 hour; According to the electric weight that present electricity price is lost, amount to RMB and be about 19098.8 yuan.Use 20 successful in migration 10 KV distribution circuits of this technology at present is equivalent to create the output value for power supply enterprise more: 38.2 ten thousand yuan.The social benefit of present 1 degree electricity is 30 yuan, retrieves economic losses about 1122336 yuan.Social synthesis benefit aspect: when electric network reliability improves greatly, improved the social image of electric power enterprise, greatly satisfied the need for electricity of society, opened up social economy's new growth point, for the development of power supply regional economy performs the element task in early stage.Image to maintenance and raising government has important function simultaneously.
Embodiment
When (1) the lead damage needs to change, generally need to change a phase conductor of whole strain section.Therefore the short circuit point should be chosen in respectively on the lead-in wire excessively of two strain insulator bars in the strain section, and its position should be near the side beyond the faulty section.The outer micromicro of the main line of non-faulty section like this is not damaged, is convenient to simultaneously side by side and off-the-line.If any one receives condition restriction short circuit point, can select from the nearer straight line pole in fault point, be made as the short circuit point after changing it into strain insulator bar.
(2) after short circuit point is set, the insulation releasing pulley is installed on each the electric pole cross-arm in strain section, each electric pole is 3.0 meters installation insulation actinobacillus devices apart from ground on one's body.
(3), discharge shorting stub and new lead to short circuit point to be changed through electric pole insulation actinobacillus device on one's body.
(4) fill shorting stub through the mode sky that connects lead-in wire, check after the phase sequence shorting stub and fault phase conductor is arranged side by side, realize the short circuit purpose of fault point.
(5) utilize current tester to confirm that shorting stub is through-flow good, cut off the lead-in wire on the strain insulator bar of strain section fault phase both sides with the mode of disconnected lead-in wire, the line load electric current all flows through through interim shorting stub, the fault phase conductor no-voltage in the strain section.
(6) utilize conductor jointer to connect new and old lead.Open the insulator wiring of fixing old lead (fault phase) on each electric pole, put it into the insulation releasing pulley.Apply tractive effort, realize new and old lead replacement.With new lead fixed on the insulator of each electric pole.
(7) with new lead line attachment, break off interim shorting stub, the line load electric current all changes new conductor strip over to joins, and finally realizes more changing jobs of fault phase conductor.
Claims (5)
1. the method for an on-load replacing 10kV distribution line lead is characterized in that: adopted the bypass operation technique, need not cut off load, can under the situation that does not influence the normal electricity consumption of user, accomplish more changing jobs of lead.
2. a kind of on-load according to claim 1 is changed the method for 10kV distribution line lead, it is characterized in that: in the strain section of fault, actinobacillus device is installed, is used to discharge shorting stub and new lead, utilize this device to accomplish the replacement of new and old lead simultaneously.
3. a kind of on-load according to claim 1 is changed the method for 10kV distribution line lead, it is characterized in that: behind the short circuit fault phase conductor, the fault point is checked that consolidation process prevents broken string in case of necessity.
4. a kind of on-load according to claim 1 is changed the method for 10kV distribution line lead; It is characterized in that: short circuit point place in both sides; After the disengagement failure phase conductor makes it out of service; The insulation releasing pulley is installed at straight line pole cross-arm place in faulty section respectively, and the fault phase conductor is imported releasing pulley.
5. a kind of on-load according to claim 1 is changed the method for 10kV distribution line lead; It is characterized in that: through shaft insulation actinobacillus device; Utilize conductor jointer that new, old lead is connected; Apply tractive effort, new lead reaches on the bar, and old lead retreats to the replacement that realizes new and old lead under the bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105631914A CN102480109A (en) | 2010-11-29 | 2010-11-29 | Method for replacing 10 kV distribution line lead with load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105631914A CN102480109A (en) | 2010-11-29 | 2010-11-29 | Method for replacing 10 kV distribution line lead with load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102480109A true CN102480109A (en) | 2012-05-30 |
Family
ID=46092641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105631914A Pending CN102480109A (en) | 2010-11-29 | 2010-11-29 | Method for replacing 10 kV distribution line lead with load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102480109A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594961A (en) * | 2013-11-01 | 2014-02-19 | 国家电网公司 | Method for replacing cable |
| CN107947029A (en) * | 2018-01-03 | 2018-04-20 | 宁波华翔东方电力机具有限公司 | A kind of distribution line crosses over shelves thread-changing coaster and its thread-changing method |
| CN112242665A (en) * | 2020-09-29 | 2021-01-19 | 浙江大有实业有限公司带电作业分公司 | Power distribution network overhead conductor replacing method |
| CN112582938A (en) * | 2020-11-12 | 2021-03-30 | 国核电力规划设计研究院有限公司 | Overhead ground wire replacing method |
| CN114614399A (en) * | 2022-03-04 | 2022-06-10 | 国网浙江省电力有限公司金华供电公司 | Working method of load-carrying shifting tension rod |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888070A (en) * | 2009-05-15 | 2010-11-17 | 上海市南电力工程有限公司 | 10KV bypass cable operation method |
-
2010
- 2010-11-29 CN CN2010105631914A patent/CN102480109A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888070A (en) * | 2009-05-15 | 2010-11-17 | 上海市南电力工程有限公司 | 10KV bypass cable operation method |
Non-Patent Citations (1)
| Title |
|---|
| 佚名: "黑龙江电力公司带负荷更换10kV配电线路导线技术国内领先", 《内蒙古电力技术》, vol. 27, no. 4, 31 August 2009 (2009-08-31) * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594961A (en) * | 2013-11-01 | 2014-02-19 | 国家电网公司 | Method for replacing cable |
| CN103594961B (en) * | 2013-11-01 | 2016-08-24 | 国家电网公司 | A kind of method changing cable |
| CN107947029A (en) * | 2018-01-03 | 2018-04-20 | 宁波华翔东方电力机具有限公司 | A kind of distribution line crosses over shelves thread-changing coaster and its thread-changing method |
| CN112242665A (en) * | 2020-09-29 | 2021-01-19 | 浙江大有实业有限公司带电作业分公司 | Power distribution network overhead conductor replacing method |
| CN112242665B (en) * | 2020-09-29 | 2022-04-29 | 浙江大有实业有限公司带电作业分公司 | Power distribution network overhead conductor replacing method |
| CN112582938A (en) * | 2020-11-12 | 2021-03-30 | 国核电力规划设计研究院有限公司 | Overhead ground wire replacing method |
| CN114614399A (en) * | 2022-03-04 | 2022-06-10 | 国网浙江省电力有限公司金华供电公司 | Working method of load-carrying shifting tension rod |
| CN114614399B (en) * | 2022-03-04 | 2023-10-20 | 国网浙江省电力有限公司金华供电公司 | Operating method for on-load migration tension rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20121024 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 150010 HARBIN, HEILONGJIANG PROVINCE TO: 150001 HARBIN, HEILONGJIANG PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20121024 Address after: 150001 Heilongjiang city of Harbin province Daoli District Shangzhi Street No. 188 Applicant after: Harbin Electric Power Bureau Applicant after: State Grid Corporation of China Address before: 150010 Heilongjiang city of Harbin province Daoli District Shangzhi Street No. 188 Applicant before: Harbin Electric Power Bureau |
|
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120530 |