CN101841136A - Broken wire on-load processing device for low-voltage distribution insulated conductor and processing method thereof - Google Patents
Broken wire on-load processing device for low-voltage distribution insulated conductor and processing method thereof Download PDFInfo
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- CN101841136A CN101841136A CN 201010186095 CN201010186095A CN101841136A CN 101841136 A CN101841136 A CN 101841136A CN 201010186095 CN201010186095 CN 201010186095 CN 201010186095 A CN201010186095 A CN 201010186095A CN 101841136 A CN101841136 A CN 101841136A
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Abstract
The invention discloses a broken wire on-load processing device for a low-voltage distribution insulated conductor and a processing method thereof. The processing device comprises insulated puncture wire clamps, a first insulated cable, a second insulated cable, a low-voltage air circuit breaker and a clamp on amperemeter, wherein the first insulated cable is connected with the second insulated cable through the low-voltage air circuit breaker; the clamp on amperemeter is arranged on the first insulated cable; and the insulated puncture wire clamps are arranged at the end parts of the first insulated cable and the second insulated cable and are connected with low-voltage distribution insulated conductors. The method shortens the power failure time, narrows the power failure range, is superior in the aspect of first-aid repair time, multiple power supply volume analysis and the like in comparison with the traditional power failure operation mode and has better economic benefit and social benefit. In addition, the invention has the advantages of convenient operation, low safety risk and the like.
Description
Technical field
The invention belongs to low-voltage distribution insulated conductor technical field, the operational method that on-load is handled when being specifically related to low-voltage distribution insulated conductor broken string.
Background technology
In the prior art, it is wide that the low-voltage distributing line network has distribution, domestic electric appliance is many, insulation level is low, characteristics such as direct user oriented, low-voltage distribution insulated conductor disconnection fault easily takes place under the extraneous factor effect, and this common faults that breaks roughly is divided into following kind: 1, cross (jumping) line loss and hinder, disconnected strand, twisted, the couple corrosion phenomenon; 2, branch's drainage thread blows; 3, the disconnected thigh of trunk and branch's suspended insulated guide wire, damage, broken string and couple corrosion; 4, connector lug overheated (as: joint variable color, snow thawing earlier etc.), the gold utensil nut that continues is loosening.
Trace it to its cause, be because low-voltage distributing line with the load electricity consumption more concentrated, particularly electricity consumption early, during the evening peak, overcurrent easily takes place blow lead, handle low-voltage distribution insulated conductor disconnection fault, past is all adopted conventional approach usually, that is: power failure is handled, specifically: " branch " cut-offs the low-pressure side three-phase load air circuit of distribute-electricity transformer district that line is had jurisdiction over earlier, draw back isolating switch or fuse then,, identify behind the true no-voltage again hanging earthing conductor and handle again with qualified electroscope electrical verification at low pressure break point two ends.For implementing safety and technical measures, comprise that power failure, electrical verification, hanging earthing conductor just need more than half an hour, removing earth connection behind the end-of-job recovers to send electricity to need about half an hour again, this traditional processing broken string method can not adapt to the demand of modern society, carrying out repairing of low-voltage distributing line on-load and upkeep operation is that the task of top priority is imperative, from the technology backward situation that just can overturn the present conditions of facing the reality of constantly bringing forth new ideas, secondly can also improve the safety operation level of low-voltage distributing line greatly.Power supply department increases to the electricity consumer power supply reliability simultaneously, the time all today social harmony make rapid progress with development, be exactly that the short trouble repairing has a power failure, people are very sensitive, seriously influence user's production and life, for example: have an industrial cousumer once in short-term power failure will cause several ten thousand and even the loss of hundreds of thousands unit, once rushing to repair temporary interruption can bring continuity to produce the interruption stopping production to the user, halfhour power failure meeting causes to be interrupted in the continuity operation production to the user and has a power failure, product goes out time rate up to more than 55%, and telegram in reply is difficult to return to the preceding ordinary production situation that has a power failure again in the short time of back.Also some is to carry out relevant prevention to have a power failure suddenly and prepare and telegram in reply back restart facility and start to the demanding continuous production responsible consumer of power supply reliability, all to recover normal operation the soonest through several hours ability, losses such as the tremendous economic that power failure is caused for interruption, product quality, raw material, the user really can't retrieve, having a power failure complains incessantly the user, heavy in view of hidden danger, traditional low-voltage distribution insulated conductor broken string processing method exists many shortcomings to leak nothing left cruelly: 1, the power failure area increases.Because one breaks mutually, must " branch " drive the total air circuit of low-pressure side circuit three-phase of distribution transforming, other two-phase also has a power failure thereupon, and handle broken string phase fault to single-phase 220V power consumption equipment this moment, other normal two-phase is carried equipment in service, along with stepping into temporary interruption, enlarged the power failure scope, frequent tape jam operational load circuit breaker " branch ", " closing " can cause the contact arc short-circuit simultaneously, cause contact resistance to increase, reduce life cycle.
2, time long, increase workload, easily expansion accident.Auxiliary operation uses Work tool many, carry inconvenience, power failure, electrical verification, hanging earthing conductor, the end-of-job operation that restores electricity waits work to account for the over half of direct repairing time, and secondly, transmission or not is generally far away apart from break point, come and go several times and expend many energy, incur loss through delay the repairing Best Times, the wrong possibility that has a power failure takes place in carelessness easily slightly simultaneously, and consequence is hardly imaginable.
3, it is many to participate in personnel and vehicle that the repairing broken string goes, short time is difficult to rational deployment, form on the bar staff as opinion indirectly or direct control point is many, program is complicated, the staff worries and does not have land under the bar, and the repairing work on the spot that causes thus is not compact, efficient is low.
4, power failure suddenly makes troubles for people's productive life, and loss can't remedy, and brings harmful effect to society.
Summary of the invention
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of broken wire on-load processing device for low-voltage distribution insulated conductor and processing method thereof are provided, and this handles device and the simple, reliable, safe performance height of processing method thereof, easy to use and better economic and social benefit arranged.
The objective of the invention is to solve by the following technical programs: broken wire on-load processing device for low-voltage distribution insulated conductor, described processing unit is made of insulation puncture line clamping, first insulation cable, second insulation cable, lv air breaker and clamp on amperemeter; Described first insulation cable is connected by lv air breaker with second insulation cable; Described first insulation cable is provided with clamp on amperemeter; Described first insulation cable and the second insulation cable end all are provided with insulation puncture line clamping, and insulation puncture line clamping is connected with the low-voltage distribution insulated conductor.
The processing method of described broken wire on-load processing device for low-voltage distribution insulated conductor, according to following steps: (1) is connected the insulation puncture line clamping of the second insulation cable end with low-voltage distribution insulated conductor live end; (2) with the insulation puncture line clamping of the first insulation cable end and low-voltage distribution insulated conductor not live end be connected; (3) closed low air circuit is communicated with first insulation cable and second insulated wire; (4) test by clamp on amperemeter and whether have electric current to pass through on second insulated wire; If have electric current to pass through on second insulated wire, then change step (5); If do not have electric current to pass through on second insulated wire, then change step (1); (5) handle low-voltage distribution insulated conductor broken string, make it to connect; (6) remove processing unit, first insulation cable and second insulated wire are all disconnected with lead.
Beneficial effect of the present invention is: 1, reduced the number of times that frequent on-load operation stops, the delivery step-down is pressed master switch, especially to the phase shortage disconnection fault, handle on the spot targetedly, do not relate to the normal users electricity consumption, can restore electricity in the shortest time to the user who has had a power failure, reduce the power failure area.
2, improve repairing broken string efficient, team collaboration's spirit is given full play in operating personnel and the ground staff repairing work that can both participate in simultaneously breaking on the bar.
3, shorten interruption duration, dwindle the contrast of power failure scope, time, the analysis of many amount of power supply has favorable economic benefit and social benefit.
Description of drawings
Fig. 1 is the application schematic diagram of processing unit of the present invention.
Wherein: 1 is first insulation cable; 2 is second insulation cable; 3 is lv air breaker; 4 is clamp on amperemeter; 5 is insulation puncture line clamping; 6 is lead.
Embodiment
Below in conjunction with accompanying drawing the present invention is done and to describe in further detail: referring to Fig. 1, a kind of broken wire on-load processing device for low-voltage distribution insulated conductor and processing method thereof, this handles device and the simple, reliable, safe performance height of processing method thereof, easy to use and better economic and social benefit arranged.
The objective of the invention is to solve by the following technical programs: broken wire on-load processing device for low-voltage distribution insulated conductor, described processing unit is made of insulation puncture line clamping, first insulation cable, second insulation cable, lv air breaker and clamp on amperemeter; Described first insulation cable is connected by lv air breaker with second insulation cable; Described first insulation cable is provided with clamp on amperemeter; Described first insulation cable and the second insulation cable end all are provided with insulation puncture line clamping, and insulation puncture line clamping is connected with the low-voltage distribution insulated conductor.
The processing method of described broken wire on-load processing device for low-voltage distribution insulated conductor, according to following steps: (1) is connected the insulation puncture line clamping of the second insulation cable end with low-voltage distribution insulated conductor live end; (2) with the insulation puncture line clamping of the first insulation cable end and low-voltage distribution insulated conductor not live end be connected; (3) closed low air circuit is communicated with first insulation cable and second insulated wire; (4) test by clamp on amperemeter and whether have electric current to pass through on second insulated wire; If have electric current to pass through on second insulated wire, then change step (5); If do not have electric current to pass through on second insulated wire, then change step (1); (5) handle low-voltage distribution insulated conductor broken string, make it to connect; (6) remove processing unit, first insulation cable and second insulated wire are all disconnected with lead.
The method of operation that low-voltage distribution insulated conductor broken string on-load is handled: 1, find out disconnection fault point bar number, phase sequence, arrangement, insulated conductor model, sectional area take place, break point present situation and surrounding environment, and stay the people to guard; 2, bar (framework) is gone up the operating personnel and is selected best job position, respectively that two insulation puncture line clampings is the firm both sides (that is: mains side and load side) that are fixed on break point (dialysis or do not have dialysis), and lv air breaker must be at " branch " open position; 3, connect two interim insulation cables and hang on the exposed conduction link of the insulation puncture line clamping of break point both sides (order of connection: first load side, back mains side, opposite when tearing open); 4, ground handling personnel operation " is closed " lv air breaker, monitors clamp on amperemeter display screen current indication simultaneously.
5, this moment, electric current formed path through mains side insulation puncture line clamping → insulation cable → air circuit mains side → air circuit load side → insulation cable → insulation puncture line clamping, recovered just as disconnection fault point.Three-phase, single-phase electric devices recover normal power supply; 6, operating personnel's repair break lines point on the bar, newly lay insulated conductor, at first adopt one section suitable long insulated conductor in same model, collinear footpath, two ends and break point two ends that insulated conductor is exposed fix, and it is firm with the broken string colligation newly to apply insulated conductor, and contact is good.(have electric current through newly laying insulated conductor this moment); 7, the operating personnel measures with clamp on amperemeter and newly lays current indication on the insulated conductor on the bar; 8, " branch " opens lv air breaker, and the interim insulation cable and the insulation puncture line clamping at two ends are removed successively; 9, whether legacy is arranged on the inspection bar; 10, the processing of low-voltage insulation conductor cord disconnection on-load finishes, and personnel withdraw the scene.
The distribution transforming of certain 400kVA public network, power factor 0.85, per hour amount of power supply 640kwh, when generation low-voltage insulation lead b breaks mutually, the conventional process broken string needs 2 hours, and few power supply energy 1280kwh adopts on-load to handle and only used 1 hour, if three-phase respectively is with 220V electrical appliance and load balancing, only b cut off the power supply 1 hour mutually, few amount of power supply 213kwh, compare with the conventional process disconnection fault time decreased half, many power supply energy 1067kwh account for 83% of few power supply energy.
Above content is to further describing that the present invention did in conjunction with concrete preferred implementation; can not assert that the specific embodiment of the present invention only limits to this; for the general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine scope of patent protection by claims of being submitted to.
Claims (2)
1. broken wire on-load processing device for low-voltage distribution insulated conductor, it is characterized in that: described processing unit is made of insulation puncture line clamping, first insulation cable, second insulation cable, lv air breaker and clamp on amperemeter; Described first insulation cable is connected by lv air breaker with second insulation cable; Described first insulation cable is provided with clamp on amperemeter; Described first insulation cable and the second insulation cable end all are provided with insulation puncture line clamping, and insulation puncture line clamping is connected with the low-voltage distribution insulated conductor.
2. based on the processing method of the described broken wire on-load processing device for low-voltage distribution insulated conductor of claim 1, it is characterized in that, according to following steps:
(1) insulation puncture line clamping with the second insulation cable end is connected with low-voltage distribution insulated conductor live end;
(2) with the insulation puncture line clamping of the first insulation cable end and low-voltage distribution insulated conductor not live end be connected;
(3) closed low air circuit is communicated with first insulation cable and second insulated wire;
(4) test by clamp on amperemeter and whether have electric current to pass through on second insulated wire; If have electric current to pass through on second insulated wire, then change step (5); If do not have electric current to pass through on second insulated wire, then change step (1);
(5) handle low-voltage distribution insulated conductor broken string, make it to connect;
(6) remove processing unit, first insulation cable and second insulated wire are all disconnected with lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010186095 CN101841136A (en) | 2010-05-28 | 2010-05-28 | Broken wire on-load processing device for low-voltage distribution insulated conductor and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010186095 CN101841136A (en) | 2010-05-28 | 2010-05-28 | Broken wire on-load processing device for low-voltage distribution insulated conductor and processing method thereof |
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| CN101841136A true CN101841136A (en) | 2010-09-22 |
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| CN 201010186095 Pending CN101841136A (en) | 2010-05-28 | 2010-05-28 | Broken wire on-load processing device for low-voltage distribution insulated conductor and processing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102201650A (en) * | 2011-04-22 | 2011-09-28 | 福建省电力有限公司福州电业局 | Electrification on and off lead wire crimping working method and shunting clamp |
| CN102403779A (en) * | 2011-12-08 | 2012-04-04 | 河南省电力公司郑州供电公司 | Power supply system for bypass to operate without power failure |
| CN103560419A (en) * | 2013-11-19 | 2014-02-05 | 国家电网公司 | 10kV load disconnection type drainage tool |
| CN112421555A (en) * | 2020-11-12 | 2021-02-26 | 广东电网有限责任公司 | Broken wire repairing device |
| CN114465153A (en) * | 2021-12-23 | 2022-05-10 | 国网浙江省电力有限公司金华供电公司 | Method for shearing reconnected 10kV overhead bare conductor under load |
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| US4661662A (en) * | 1985-09-30 | 1987-04-28 | Houston Industries, Incorporated | Power line working apparatus |
| JP2007209196A (en) * | 2001-06-11 | 2007-08-16 | Daewon Electric Co Ltd | Uninterruptible power distribution construction method utilizing electric wire moving mechanism in electric power pole |
| CN201018221Y (en) * | 2007-02-02 | 2008-02-06 | 余晓峰 | Device for electric network live operation |
| CN201032674Y (en) * | 2006-11-17 | 2008-03-05 | 贺祥梅 | Hotline maintenance device |
| CN101593942A (en) * | 2009-04-03 | 2009-12-02 | 安徽省电力公司滁州供电公司 | 10 kilovolt insulated circuit operating rod type bypass working methods and special equipment |
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2010
- 2010-05-28 CN CN 201010186095 patent/CN101841136A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4661662A (en) * | 1985-09-30 | 1987-04-28 | Houston Industries, Incorporated | Power line working apparatus |
| JP2007209196A (en) * | 2001-06-11 | 2007-08-16 | Daewon Electric Co Ltd | Uninterruptible power distribution construction method utilizing electric wire moving mechanism in electric power pole |
| CN201032674Y (en) * | 2006-11-17 | 2008-03-05 | 贺祥梅 | Hotline maintenance device |
| CN201018221Y (en) * | 2007-02-02 | 2008-02-06 | 余晓峰 | Device for electric network live operation |
| CN101593942A (en) * | 2009-04-03 | 2009-12-02 | 安徽省电力公司滁州供电公司 | 10 kilovolt insulated circuit operating rod type bypass working methods and special equipment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102201650A (en) * | 2011-04-22 | 2011-09-28 | 福建省电力有限公司福州电业局 | Electrification on and off lead wire crimping working method and shunting clamp |
| CN102403779A (en) * | 2011-12-08 | 2012-04-04 | 河南省电力公司郑州供电公司 | Power supply system for bypass to operate without power failure |
| CN103560419A (en) * | 2013-11-19 | 2014-02-05 | 国家电网公司 | 10kV load disconnection type drainage tool |
| CN112421555A (en) * | 2020-11-12 | 2021-02-26 | 广东电网有限责任公司 | Broken wire repairing device |
| CN114465153A (en) * | 2021-12-23 | 2022-05-10 | 国网浙江省电力有限公司金华供电公司 | Method for shearing reconnected 10kV overhead bare conductor under load |
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Application publication date: 20100922 |