CN101552434B - Bypass current working method - Google Patents
Bypass current working method Download PDFInfo
- Publication number
- CN101552434B CN101552434B CN2008102313452A CN200810231345A CN101552434B CN 101552434 B CN101552434 B CN 101552434B CN 2008102313452 A CN2008102313452 A CN 2008102313452A CN 200810231345 A CN200810231345 A CN 200810231345A CN 101552434 B CN101552434 B CN 101552434B
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- Prior art keywords
- isolation switch
- bar
- supply line
- cable
- rod
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention provides a bypass current working method comprising the following steps of arranging a 02# rod, a 03# rod, and a 04 #rod which are adjacent in sequence in a power supply line, wherein power supply fault exists between the 02# rod and the 03# rod; respectively installing isolation switches on the 02# rod and the 04# rod, disconnecting the isolation switch and respectively electricallyconnecting an isolation switch upper lead; paving a cable between the 02# rod and the 04# rod; electrically connecting a 02# isolation switch down lead on the 02# rod so as to lead the 02# isolation switch to be communicated with the cable; turning on the 02# isolation switch, checking the cable phase sequence, making records of a nuclear phase, and then disconnecting the 02# isolation switch; contrasting the records of the nuclear phase and then electrically connecting a 04# isolation switch down lead so as to lead the 04# isolation switch to be communicated with the cable; and finally turning on the 02# isolation switch and the 04# isolation switch sequentially after confirming the inerrability of the phase sequence. The working method not only eliminates the inconvenience caused by power outage, but also improves working efficiency and power supply reliability, thus having popularization and application value.
Description
Technical field
The present invention relates to repairing of a kind of supply line or repair method, specifically, related to a kind of bypass current working method.
Background technology
In existing live line working rules and method, generally speaking, charged montage fire all is to forbid the on-load operation; In the repairing or maintenance of supply line, this just makes existing operational method extremely complicated, and time-consuming consumption power, can't ensure the reliability of electricity consumption.
At above problem, people are seeking a kind of new technical solution always.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, thereby but provide a kind of live line working, repairing efficient height, bypass current working method that power supply reliability is strong.
To achieve these goals, the invention provides a kind of bypass current working method, adjacent successively in supply line have 02# bar, 03# bar and a 04# bar, wherein, has power supply trouble between 02# bar and the 03# bar, and this working system may further comprise the steps:
Step 1, on the 02# of supply line bar and the 04# of supply line bar, 02# isolation switch and 04# isolation switch are installed respectively, disconnect isolation switch, and charged respectively connecting on the isolation switch go between, and 02# isolation switch, 04# isolation switch one end are communicated with the supply line at 02# bar and 04# bar place respectively;
Cable laying between the 02# of supply line bar and the 04# of supply line bar, and the cable two ends are separately fixed on the 02# of supply line bar and the 04# of the supply line bar uses megohmmeter the cable line that lays is shaken whether survey insulation resistance qualified, guarantees that ground connection is good;
Step 2, send the charged 02# of the connecting isolation switch of electric side downlead, make 02# isolation switch other end communication cable one end at the 02# of supply line bar strain section;
Step 3, the 02# isolation switch that closes are checked cable other end phase sequence, and carry out the nuclear phase record, then, disconnect the 02# isolation switch again;
Step 4, contrast nuclear phase record, the charged 04# isolation switch downlead that connects makes the 04# isolation switch other end communication cable other end;
Step 5, measurement 02# bar place supply line current value, and keep a record, after the affirmation phase sequence was errorless, 02# isolation switch and 04# isolation switch successively closed;
Measure the 02# of supply line bridge ceases to be busy road and cable current value respectively, check the shunting situation, and keep a record, judge whether cable has electric current to pass through;
After step 6, affirmation cable have electric current to pass through, disconnect the 02# of supply line bar strain insulator bow line, and the lead tail colligation that will cut-off;
Step 7, the disconnection 03# of supply line bar arrive the strain insulator bow line of the 02# of supply line bar direction;
Step 8, prune job scene confirm that the 02# of supply line bar is not charged to overhead transmission line between the 03# bar, and operation is finished.
The relative prior art of the present invention has outstanding substantive distinguishing features and obvious improvement, specifically, this bypass current working method is that on-load cut-offs line load, original load is transferred in another bypass when disconnecting, do not make original line outage, and can guarantee its safe and stable operation; This method not only can solve because of the production that power failure brings, life inconvenience, and has improved operating efficiency, has also improved power supply reliability simultaneously, and it has application value.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Adjacent successively in supply line have 02# bar, 03# bar and a 04# bar, wherein, has power supply trouble between 02# bar and the 03# bar, and this bypass current working method may further comprise the steps:
Step 1, on the 02# of supply line bar and the 04# of supply line bar, 02# isolation switch and 04# isolation switch are installed respectively, disconnect isolation switch, and charged respectively connecting on the isolation switch go between, and 02# isolation switch, 04# isolation switch one end are communicated with the supply line at 02# bar and 04# bar place respectively;
Cable laying between the 02# of supply line bar and the 04# of supply line bar, and the cable two ends are separately fixed on the 02# of supply line bar and the 04# of the supply line bar uses megohmmeter the cable line that lays is shaken whether survey insulation resistance qualified, guarantees that ground connection is good;
Step 2, send the charged 02# of the connecting isolation switch of electric side downlead, make 02# isolation switch other end communication cable one end at the 02# of supply line bar strain section;
Step 3, the 02# isolation switch that closes are checked cable other end phase sequence, and carry out the nuclear phase record, then, disconnect the 02# isolation switch again;
Step 4, contrast nuclear phase record, the charged 04# isolation switch downlead that connects makes the 04# isolation switch other end communication cable other end;
Step 5, use pincers type ammeter are measured 02# bar place supply line current value, and keep a record, and after the affirmation phase sequence was errorless, 02# isolation switch and 04# isolation switch successively closed;
Use pincers type ammeter to measure the 02# of supply line bridge ceases to be busy road and cable current value respectively, check the shunting situation, and keep a record, judge whether cable has electric current to pass through;
After step 6, affirmation cable have electric current to pass through, use long handle insulation bolt clipper and insulated clamp to disconnect the 02# of supply line bar strain insulator bow line, and the lead tail colligation that will cut-off;
Step 7, use long handle insulation bolt clipper and insulated clamp disconnect the strain insulator bow line of the 03# of supply line bar to the 02# of supply line bar direction;
Step 8, prune job scene confirm that the 02# of supply line bar is not charged to overhead transmission line between the 03# bar, and operation is finished
By this operational method, transform or during overhaul, can effectively solve the problem that causes the power load loss because of whole piece line outage a certain section of a certain supply line; This method had both improved power supply reliability, improved operating efficiency again, and simultaneously, the bypass drainage has solved the technical barrier that live line working can not the on-load operation.
Economic and Efficiency Analysis: afternoon on July 11st, 2008, meet kurtosis just in the summer, total capacity is that marquis's 21 lines of 8850KVA break down, adopt this method operation, can save interruption duration 5 hours, if calculate by load 65%, only this item can reduce 15998 yuan=8950KVA of economic loss * 65% * 5H * 0.55 yuan;
Its indirect economic effect of what is more important: improved power supply reliability, reduced frequency of power cut, ensured the demand of people, changed the situation that maintenance must have a power failure, obtained good economic benefit and social benefit to electricity consumption.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (1)
1. a bypass current working method is characterized in that, adjacent successively in supply line have 02# bar, 03# bar and a 04# bar, wherein, has power supply trouble between 02# bar and the 03# bar, and this working system may further comprise the steps:
Step 1, on the 02# of supply line bar and the 04# of supply line bar, 02# isolation switch and 04# isolation switch are installed respectively, disconnect isolation switch, and charged respectively connecting on the isolation switch go between, and 02# isolation switch, 04# isolation switch one end are communicated with the supply line at 02# bar and 04# bar place respectively;
Cable laying between the 02# of supply line bar and the 04# of supply line bar, and the cable two ends are separately fixed on the 02# of supply line bar and the 04# of the supply line bar uses megohmmeter the cable line that lays is shaken whether survey insulation resistance qualified, guarantees that ground connection is good;
Step 2, send the charged 02# of the connecting isolation switch of electric side downlead, make 02# isolation switch other end communication cable one end at the 02# of supply line bar strain section;
Step 3, the 02# isolation switch that closes are checked cable other end phase sequence, and carry out the nuclear phase record, then, disconnect the 02# isolation switch again;
Step 4, contrast nuclear phase record, the charged 04# isolation switch downlead that connects makes the 04# isolation switch other end communication cable other end;
Step 5, measurement 02# bar place supply line current value, and keep a record, after the affirmation phase sequence was errorless, 02# isolation switch and 04# isolation switch successively closed;
Measure the 02# of supply line bridge ceases to be busy road and cable current value respectively, check the shunting situation, and keep a record, judge whether cable has electric current to pass through;
After step 6, affirmation cable have electric current to pass through, disconnect the 02# of supply line bar strain insulator bow line, and the lead tail colligation that will cut-off;
Step 7, the disconnection 03# of supply line bar arrive the strain insulator bow line of the 02# of supply line bar direction;
Step 8, prune job scene confirm that the 02# of supply line bar is not charged to overhead transmission line between the 03# bar, and operation is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102313452A CN101552434B (en) | 2008-12-12 | 2008-12-12 | Bypass current working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102313452A CN101552434B (en) | 2008-12-12 | 2008-12-12 | Bypass current working method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101552434A CN101552434A (en) | 2009-10-07 |
| CN101552434B true CN101552434B (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102313452A Expired - Fee Related CN101552434B (en) | 2008-12-12 | 2008-12-12 | Bypass current working method |
Country Status (1)
| Country | Link |
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| CN (1) | CN101552434B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078268A (en) * | 2012-12-28 | 2013-05-01 | 上海市电力公司 | Uninterrupted power overhauling method of 10kV cables between two annular net cabinets |
| CN107525998A (en) * | 2017-09-08 | 2017-12-29 | 广东电网有限责任公司东莞供电局 | System and method for detecting leakage current of zinc oxide arrester |
| CN107505490A (en) * | 2017-09-08 | 2017-12-22 | 广东电网有限责任公司东莞供电局 | Method for installing current transformer at grounding down lead of operating lightning arrester |
| CN112242666B (en) * | 2020-09-29 | 2022-04-19 | 浙江大有实业有限公司带电作业分公司 | Method for replacing outgoing cable of line with radial structure |
| CN113328374A (en) * | 2021-04-19 | 2021-08-31 | 国网浙江淳安县供电有限公司 | Earth potential all-terrain on-load operation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224262A (en) * | 1999-01-25 | 1999-07-28 | 西宁供电局 | Live-wire work method for 10 KV multiloop insulated conductor |
-
2008
- 2008-12-12 CN CN2008102313452A patent/CN101552434B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224262A (en) * | 1999-01-25 | 1999-07-28 | 西宁供电局 | Live-wire work method for 10 KV multiloop insulated conductor |
Non-Patent Citations (2)
| Title |
|---|
| 杨晓翔等.带负荷更换10kV线路柱上开关的作业方法.《湖州师范学院学报》.2009,第31卷 * |
| 王明春.10kV电缆带电作业旁路系统.《农村电气化》.2006,(第9期),第1页. * |
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| Publication number | Publication date |
|---|---|
| CN101552434A (en) | 2009-10-07 |
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Granted publication date: 20110817 Termination date: 20111212 |