CN201440584U - Ground potential replacement device for tension tower insulators and accessories in power transmission line - Google Patents

Ground potential replacement device for tension tower insulators and accessories in power transmission line Download PDF

Info

Publication number
CN201440584U
CN201440584U CN2009201091341U CN200920109134U CN201440584U CN 201440584 U CN201440584 U CN 201440584U CN 2009201091341 U CN2009201091341 U CN 2009201091341U CN 200920109134 U CN200920109134 U CN 200920109134U CN 201440584 U CN201440584 U CN 201440584U
Authority
CN
China
Prior art keywords
insulating bar
fixed
fixture
tower
transmission line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2009201091341U
Other languages
Chinese (zh)
Inventor
郝旭东
刘亚新
龚延兴
孙兵
顾铁力
雒文博
刘小刚
杨福民
高同武
张永山
顾超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHENGDE POWER SUPPLY Co Ltd OF NORTH CHINA GRID Co Ltd
SHAANXI QINCHUAN ELECTRIC POWER EQUIPMENT INDUSTRY Co Ltd
North China Electric Power Research Institute Co Ltd
Original Assignee
CHENGDE POWER SUPPLY Co Ltd OF NORTH CHINA GRID Co Ltd
SHAANXI QINCHUAN ELECTRIC POWER EQUIPMENT INDUSTRY Co Ltd
North China Electric Power Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHENGDE POWER SUPPLY Co Ltd OF NORTH CHINA GRID Co Ltd, SHAANXI QINCHUAN ELECTRIC POWER EQUIPMENT INDUSTRY Co Ltd, North China Electric Power Research Institute Co Ltd filed Critical CHENGDE POWER SUPPLY Co Ltd OF NORTH CHINA GRID Co Ltd
Priority to CN2009201091341U priority Critical patent/CN201440584U/en
Application granted granted Critical
Publication of CN201440584U publication Critical patent/CN201440584U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

The utility model relates to a ground potential replacement device for tension tower insulators and accessories in the power transmission line, which comprises a fixed device and an insulating bar, wherein the fixed device is arranged on a tension tower, and the insulating bar is connected with the fixed device; and one end of the insulating bar is fixed on the tension tower, and the other end thereof is used for clamping and supporting a current lead so as to limit the position of the current lead. The clear space between cross arms can be up to more than 3 meters, thereby ensuring the safety distance of live working.

Description

Earth potential is changed the device of power line tension tower insulator and annex
Technical field
The utility model relates to the device that a kind of earth potential is changed power line tension tower insulator and annex.
Background technology
Power network development is very fast in recent years, transformer station's outlet is crowded, the circuit corridor is narrow, line design can adopt increasing little spacing multiloop tower, will adopt the little spacing tower design of multiloop in the 110kV transmission line in a large number, for example, have jurisdiction in the 110kV transmission line in certain district, the many Hui Tayi of little spacing account for 5.23% of total Ji Ta number; Because the little spacing multiloop of 110kV circuit vertical arrangement (comprising font) iron tower is because of reasons in structure, two-layer cross-arm spacing is 3.5 meters, cause live wire and be positioned between two-layer cross-arm, the electrician who carries out live line working can not satisfy the safe distance requirement, and combinational gap was not enough when personnel entered current potential by means of instruments such as insulated ladder, insulated flexible ladders, to circuit because lightning stroke flashover, null value, wire clamp is overheated and make an inspection tour in the equipment deficiency found and hidden danger can not timely charged solution, have only by interruption maintenance and just can finish the scarce work that disappears.Such economic loss and social benefit loss are all quite huge.For example the heating of the parallel groove clamp of the wide two times 110kV circuit 83# terminal towers of elm (tower is 110DSn) A phase drainage thread in 2005 is serious, wherein A mutually the heating of two wire clamps surpassed 63 ℃, serious threat the safe operation of circuit, must handle rapidly.If this task is handled by the interruption maintenance operation, the time of interruption maintenance operation procedure conversion (contact stops sending electricity, back brake time, arranges safety measure and practice of construction time) needs 6 hours at least, the average load of 110kV circuit is 2.4 ten thousand kW during the autumn and winter big load, promptly loses 14.4 ten thousand kWh in 6 hours.This task is according to entering the equipotential live line working scarce task that disappears, and only this item just can be company and reduces electric quantity loss 14.4 ten thousand kWh.
Therefore, the method that needs a kind of energy band to carry out hot line job easily and safely.
The utility model content
In order to address the above problem, the utility model provides a kind of device that earth potential is changed power line tension tower insulator and annex that is used for, comprise: fixture, be fixedly installed on the strain tower, insulating bar is connected with fixture, and an end of insulating bar is fixed on the strain tower, the other end is used to block and the supporting drainage line, to limit the position of described drainage thread.
Wherein, fixture is to bundle, to link or utilize the mode of securing member to be fixed on the strain tower.
Wherein, described fixture is the clip that comprises first clamping part and second clamping part.
Wherein, an end relative fixed device of insulating bar rotatably connects.
Wherein, the other end of insulating bar has the fixed part along horizontal expansion, and this fixed part is provided with the clip engine part that is complementary with drainage thread.
Wherein, this device also comprises the bundle rope, is used for further insulating bar being bundled in strain tower.
Wherein, the fixed part of insulating bar is limited to the position of drainage thread in the outside of the corresponding cross-arm termination of strain tower.
Wherein, transmission line is the 110kV transmission line, and the insulating bar relative vertical position is provoked drainage thread more than 70 ° laterally.
The technical solution of the utility model has following beneficial effect:
This device is made for all insulation material, and is in light weight portable, makes things convenient for the open-air use of transmission line.But related accessories such as many times strain insulator strings of the little spacing of charged for replacement 110kV and stockbridge damper.Thoroughly solve many times vertical arrangement towers of the little spacing of 110kV and can't enter strain tower cross arm insulator hanging point place, carried out the difficult problem that earth potential carries out live line working.It will promote the progress of current transmission of electricity specialized management level effectively, make originally must interruption maintenance work change into hotline maintenance, step a step of key to repair based on condition of component.And have the repairing function concurrently, and improve the circuit reliability of operation, reach the purpose of repair based on condition of component.
Be noted that the description and the following detailed description all are exemplary, being intended to provides further instruction to desired the utility model.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.Below with reference to figure, other purpose, feature and effect of the present utility model is described in further detail.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 shows earth potential and changes the schematic representation of apparatus that the 110kV circuit is disposed arrangement strain tower insulator string and annex;
Fig. 2 shows the plan view of insulating bar;
Fig. 3 shows and is used for the view that earth potential is changed the device use swing offset method of 110kV circuit vertical arrangement strain tower insulator string and annex.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Because between two-layer cross-arm, safe distance can not satisfy the staff and carry out the earth potential live operation at the cross-arm place about strain tower lead drainage thread was positioned at, thus need manage to change electrified body position herein, so that carry out live line working.
The utility model provides a kind of device that earth potential is changed 110kV circuit strain tower phase (or following phase) insulator string and annex that is used for.Fig. 1 shows the schematic representation of apparatus that earth potential is changed 110kV circuit vertical arrangement strain tower insulator string and annex.As shown in the figure, comprise according to device of the present utility model: fixture 1 is fixedly installed on the strain tower, and insulating bar 2, being connected with fixture 1, an end of insulating bar 2 is fixed on the strain tower, the other end is used to block and the supporting drainage line, to limit the position of described drainage thread.And an end relative fixed device of insulating bar rotatably connects.
Wherein, fixture 1 can bundle or link on strain tower, also can utilize the mode of securing member to be fixed on the strain tower.Preferably, fixture 1 can be the clip that comprises first clamping part and second clamping part.
Fig. 2 shows the plan view of insulating bar.As shown in the figure, insulating bar 2 comprises bar portion and along the fixed part 21 of horizontal expansion, and this fixed part 21 is provided with the clip engine part 211 that is complementary with drainage thread.Preferably, clip engine part 211 can be embodied as two crotches arranging at fixed part 21 two ends.
Referring again to Fig. 1, change middle phase (or the following phase) insulator of strain tower, the staff needs at last phase (or middle phase) cross-arm broken end place fixing device for installing 1, block drainage thread with insulating bar 2, insulating bar 2 is linked to each other with fixture 1, the staff releases drainage thread with insulating bar 2 at the cross-arm home, and rotating insulated bar 2 is provoked about about 70 ° laterally with drainage thread, as shown in Figure 3, can reach the above clear space distance of 3m between such two cross-arms, guarantee the live line working safe distance.Pin insulation strut 2 and fixture 1 afterwards, preferably, insulating bar 2 can be bundled on the strain tower, carry additionally safty shield afterwards.The staff enters middle phase (or following phase) cross-arm position and changes insulator, and the replacing method is with the routine work method.
The superiors' cross-arm is changed the working system operation routinely of strain insulator insulator string.
Use the method, when insulator is single string, each one of fixture and insulating bar; When insulator is two string, each two of fixture and described insulating bars.
Be embodiment of the present utility model only below, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present utility model.

Claims (8)

1. one kind is used for the device that earth potential is changed power line tension tower insulator and annex, it is characterized in that, comprising:
Fixture (1) is fixedly installed on the described strain tower,
Insulating bar (2) is connected with described fixture (1), and an end of described insulating bar is fixed on the described strain tower, and the other end is used to block and the supporting drainage line, to limit the position of described drainage thread.
2. device according to claim 1 is characterized in that, described fixture (1) is to bundle, to link or utilize the mode of securing member to be fixed on the described strain tower.
3. device according to claim 1 is characterized in that, described fixture (1) is the clip that comprises first clamping part and second clamping part.
4. device according to claim 1 is characterized in that, the described relatively fixture of a described end of described insulating bar (2) rotatably connects.
5. device according to claim 4 is characterized in that, the described other end of described insulating bar (2) has the fixed part (21) along horizontal expansion, and described fixed part is provided with the clip engine part (211) that is complementary with described drainage thread.
6. device according to claim 5 is characterized in that, described device also comprises bundle rope (3), is used for further described insulating bar (2) being bundled in described strain tower.
7. device according to claim 5 is characterized in that, the described fixed part of described insulating bar (2) is limited to the position of described drainage thread in the outside of the corresponding cross-arm termination of described strain tower.
8. device according to claim 7 is characterized in that, described transmission line is the 110kV transmission line, and described insulating bar relative vertical position is provoked drainage thread more than 70 ° laterally.
CN2009201091341U 2009-06-11 2009-06-11 Ground potential replacement device for tension tower insulators and accessories in power transmission line Expired - Lifetime CN201440584U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201091341U CN201440584U (en) 2009-06-11 2009-06-11 Ground potential replacement device for tension tower insulators and accessories in power transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201091341U CN201440584U (en) 2009-06-11 2009-06-11 Ground potential replacement device for tension tower insulators and accessories in power transmission line

Publications (1)

Publication Number Publication Date
CN201440584U true CN201440584U (en) 2010-04-21

Family

ID=42545242

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201091341U Expired - Lifetime CN201440584U (en) 2009-06-11 2009-06-11 Ground potential replacement device for tension tower insulators and accessories in power transmission line

Country Status (1)

Country Link
CN (1) CN201440584U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102403670A (en) * 2010-09-13 2012-04-04 哈尔滨第二电业局 Quick wire picking device applied to 10 KV and below overhead power transmission lines
CN103401178A (en) * 2013-07-11 2013-11-20 国家电网公司 Support frame for replacing vibration damper
CN103474909A (en) * 2013-09-25 2013-12-25 国网河南省电力公司平顶山供电公司 Method for replacing multi-loop strain insulator string in drainage wire supporting distance expanding hot-line working
CN110571704A (en) * 2019-08-30 2019-12-13 贵州电网有限责任公司 Tool and method suitable for disassembling B-phase drainage line insulator of strain tower

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102403670A (en) * 2010-09-13 2012-04-04 哈尔滨第二电业局 Quick wire picking device applied to 10 KV and below overhead power transmission lines
CN103401178A (en) * 2013-07-11 2013-11-20 国家电网公司 Support frame for replacing vibration damper
CN103474909A (en) * 2013-09-25 2013-12-25 国网河南省电力公司平顶山供电公司 Method for replacing multi-loop strain insulator string in drainage wire supporting distance expanding hot-line working
CN103474909B (en) * 2013-09-25 2016-08-17 国网河南省电力公司平顶山供电公司 Drainage thread supports the method for expansion live-line replacing multiloop strain insulator string
CN110571704A (en) * 2019-08-30 2019-12-13 贵州电网有限责任公司 Tool and method suitable for disassembling B-phase drainage line insulator of strain tower

Similar Documents

Publication Publication Date Title
CN201440584U (en) Ground potential replacement device for tension tower insulators and accessories in power transmission line
CN103606854A (en) Operating method for replacing tension insulator on super and ultra-high voltage direct current transmission line in electrified mode
CN103618249A (en) technology for electrified overhaul of +-500kV double-circuit direct-current power transmission lines on same tower
CN107994527A (en) A kind of high tension electric tower wire insulation buffer unit
CN101888070B (en) 10KV bypass cable operation method
CN201466574U (en) Device for isoelectrically replacing insulator and accessory of iron tower of transmission line
CN203734209U (en) Live working device for cable bypass
CN205882560U (en) Special circulation cord rack device of distribution live working earth potential
CN210866095U (en) Special shunting device for replacing drop-out fuse under load
CN104535804A (en) Portable current transformer test clamp
CN202535016U (en) OPGW pull-in optical cable safety grounding fixing assembly
CN202840439U (en) Double ground wire connecting system
CN201466575U (en) Device for equipotentially overcoming drainage shortcomings of tension tower of power transmission line
WO2016023141A1 (en) Process for live replacement of tension hard-tube bus-bar jumper insulator of +/- 800kv ultra-high-voltage dc transmission line
CN206575086U (en) Insulate turnbuckle plate pulling device
CN206712417U (en) Ice-melt gold utensil
CN201312079Y (en) Clamping apparatus for live line replacement of suspended insulator in middle of 500KV untypical tangent tower via splicing method
CN205335800U (en) Wire insulated supporting plate device
CN214384849U (en) Spacing insulating support rod
CN204167810U (en) A kind of lightning protection pillar insulator live line working wire stripping support
CN203589614U (en) Drainage plate live-line defect-eliminating tool
CN213753459U (en) Steel pole for vertical outgoing line of transformer substation
CN212624822U (en) Novel overhead transmission line lightning conductor
CN209169909U (en) OPGW optical cable draws lower device at a kind of substation architecture
CN208618905U (en) A kind of insulation electric pole of 10kV high-tension line

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
PP01 Preservation of patent right
PP01 Preservation of patent right

Effective date of registration: 20180319

Granted publication date: 20100421

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20100421