CN109217170A - The replacement tool of ground electrode circuit insulator and fitting - Google Patents
The replacement tool of ground electrode circuit insulator and fitting Download PDFInfo
- Publication number
- CN109217170A CN109217170A CN201810866384.3A CN201810866384A CN109217170A CN 109217170 A CN109217170 A CN 109217170A CN 201810866384 A CN201810866384 A CN 201810866384A CN 109217170 A CN109217170 A CN 109217170A
- Authority
- CN
- China
- Prior art keywords
- fitting
- tool
- screw rod
- replacement tool
- ground electrode
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Landscapes
- Insulators (AREA)
Abstract
The present invention provides the replacement tool of a kind of ground electrode circuit insulator and fitting, including tool monomer, each tool monomer includes that screw rod, insulation draw high part and set the fixture of conducting wire or insulator or yoke plate for card, the upper end that part is drawn high with the insulation in the lower end of the screw rod connects firmly, the lower end that the insulation draws high part is connected firmly with the fixture, the screw rod is equipped with operating handle, and the screw rod is connected with support fixing piece.The present invention provides a kind of replacement tools of ground electrode circuit insulator and fitting convenient for insulator and hardware fitting replacement.
Description
Technical field
The present invention relates to electric system maintenance technique field more particularly to a kind of ground electrode circuit insulators and fitting more
Change tool.
Background technique
Earthing pole and its route are an important components in DC transmission system.In bipolar operation, nothing in ground
Electric current, earthing pole play a part of to clamp down on inverter neutral point potential.It is transported in bipolar and unsymmetric mode and single-stage Ground return mode
When row, not only play a part of clamping down on inverter neutral point potential, but also provide access for DC current.
As electricity consumption is stepped up, transmission facility load constantly increases, and the insulator of ground electrode circuit occurs a large amount of old
Change, phenomena such as dirt again, connecting tool due to electric current is excessive and scaling loss, therefore very big security risk is brought to route, and can be
Increase the workload maked an inspection tour and overhauled.Insulator and fitting setting replace unusual trouble in many specific positions,
Power off time is caused to extend, person works measure increasing, power supply reliability reduces.
Summary of the invention
The purpose of the present invention is to provide a kind of ground electrode circuit insulators and fitting convenient for insulator and hardware fitting replacement
Replacement tool.
In order to achieve the above object, the present invention adopts the following technical scheme:
A kind of replacement tool of ground electrode circuit insulator and fitting, including tool monomer, each tool monomer includes silk
Bar, insulation draw high part and set the fixture of conducting wire or insulator or yoke plate for card, and the lower end of the screw rod is drawn high with the insulation
The upper end of part connects firmly, and the lower end that the insulation draws high part is connected firmly with the fixture, and the screw rod is equipped with operating handle, the silk
Bar is connected with support fixing piece.
Further, the securing supports are upper blocking seat, and the upper blocking seat includes that support lugn and screw mandrel pass through
Through-hole, the upper blocking seat are equipped with bearing block, are equipped with bearing in bearing block, the screw rod is set in bearing, the bearing block
On be threaded with pressing ring, pressing ring limits the bearing on bearing block, and the screw rod is externally provided with the spine matched with screw rod
Casing is taken turns, the lower end of ratchet casing tube is against on bearing face, and the operating handle is mounted on ratchet casing tube and and ratchet casing tube
It is perpendicular.
Further, the fixture is horizontal double-hung card, and the both ends of horizontal double-hung card are respectively equipped with triggers upwards
Suspension hook, the lower end that part is drawn high with the insulation in the middle part of horizontal double-hung card connect firmly.
Further, the fixture is flower pattern card, and flower pattern card is equipped with for blocking the Card trough for setting yoke plate, sets on flower pattern card
Have through the snap-gauge hole of the Card trough.
Further, at least two tool monomers including being axially arranged along conducting wire.
Further, the contact surface of the upper blocking seat and the bearing block is recessed spherical surface.
Further, the replacement tool is cross arm side hardware fitting replacement tool, and the cross arm side hardware fitting replacement tool includes
In the symmetrically arranged two cross-arm sides tool monomer of the sagittal plane of conducting wire, the cross-arm side tool monomer, the screw rod includes
The hydraulic screw rod and mechanical lead screw that head and the tail connect firmly.
Further, the replacement tool is insulator replacement tool, and the insulator replacement tool further includes machete card,
Machete card is arranged on the screw rod, and the fixture is overturning plate clamp.
Further, the insulation is drawn high is equipped with several overturning plate clamp installation and adjustment hole along the vertical direction on part.
Further, the replacement tool is side of wire hardware fitting replacement tool, and the fixture is lead clamping device.
The present invention also provides the replacement tool of a kind of double strain ground electrode circuit insulator chain and fitting, feature exists
In including above-mentioned cross arm side hardware fitting replacement tool, insulator replacement tool and side of wire hardware fitting replacement tool.
After adopting the above technical scheme, the present invention has the advantage that
(1) in use, support fixing piece is fixed on cross-arm or insulator or yoke plate, by fixture and conducting wire or insulator
Or yoke plate connection, screw rod is tightened by operating handle, the tension of conducting wire or insulator chain is transferred on this replacement tool, it can be more
Add the replacement of connecting tool that is safe, laborsaving, quickly implementing the replacement and scaling loss to breakage or zero resistance insulator.
(2) in use, being convenient for changing the branch of tool using the double angle at tower head hardware string hanging point as upper blocking seat supporting point
Support is fixed；Bearing is installed in bearing block by pressing ring, so that bearing is not fallen out during screw rod rotates within the bearing
Bearing block；Screw rod is matched with ratchet casing tube, is loosened by operating handle rotating ratchet casing with the tightening for realizing screw rod, wherein
Operating handle is vertical with ratchet casing tube so that rapid operation.
(3) fixture use horizontal double-hung card with for wire jumper insulator and fitting replacement and simply connected wire insulation
With the replacement of fitting.In use, using the double angle at tower head hardware string hanging point as upper blocking seat supporting point, horizontal double-hung card
Suspension hook catches on conducting wire, after tightening screw rod, can not only realize the replacement of insulator, but also connection tower hanging plate can be realized to institute between suspension clamp
There is the replacement of fitting.
(4) fixture uses flower pattern card with the replacement for duplex conducting wire suspension insulator and fitting.In use, with tower head
Yoke plate is caught in flower pattern card and fixes connection by screw and flower pattern by the double angle at hardware string hanging point as upper blocking seat supporting point,
After tightening screw rod, the replacement of insulator can be not only realized, but also can realize the replacement of connection tower hanging plate to fittings all between right angle hanging plate.
(5) using at least two tool monomers being axially arranged along conducting wire, on the one hand, reduce individual tool monomer receiving
Pulling force；On the other hand, when a tool monomer because fixture loosen or screw rod break or insulate draw high part junction it is disconnected
When convincing cause tool monomer by patient analysis and drawing high failure, other tool monomers play the role of second protection.
(6) contact surface of upper blocking seat and bearing block is recessed spherical surface, on the one hand, under the gravity of screw rod, ratchet
Sleeve compresses bearing, so that bearing block, by lower pressure, bearing block is pressed toward at the center of upper blocking seat, tightens and loosens in screw rod
When, the generation sliding for avoiding bearing block causes bearing offset, screw rod stuck；On the other hand, bearing block to upper blocking seat generate to
The radial force of surrounding and downward pressure, since this radial force generates friction between upper blocking seat and upper angle steel, to avoid card
The sliding of seat.
(7) cross arm side hardware fitting replacement tool is used for the replacement of double strain conducting wire cross arm side hardware fitting, since double strain is led
Linear dimension is longer, and tightening needs larger pulling force, therefore uses symmetrically arranged two cross-arm sides tool monomer, two cross-arm side tools
Two fixtures of monomer are connected to the both ends of yoke plate, and two securing supports are fixed on cross-arm, first pre- using mechanical lead screw
Tightly, it when painstaking larger, then is tightened with hydraulic screw rod.
(8) insulator replacement tool is used for the replacement of double strain wire insulation, overturning plate clamp connecting insulator bottom end
U-shaped connecting plate on hanging plate, the card body and turnover panel of overturning plate clamp can relatively rotate, so that insulator replacement tool adapts to insulator
Length, machete hook live insulator top hanging plate, tighten screw rod to replace insulator.
(9) since insulator model is different, the overturning plate clamp installation and adjustment hole being arranged on part along the vertical direction is drawn high in insulation
To adjust the installation site of overturning plate clamp, to adapt to the insulator of different model.
(10) side of wire hardware fitting replacement tool is used for the replacement of double strain conductors side fitting, and securing supports are fixed
On yoke plate, lead clamping device is clamped on conducting wire, tightens screw rod with restringing side fitting.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is tool monomer in the embodiment one of the replacement tool of a kind of ground electrode circuit insulator of the present invention and fitting
Structural schematic diagram.
Fig. 2 is the partial enlarged view in Fig. 1 at A.
Fig. 3 is tool monomer in the embodiment two of the replacement tool of a kind of ground electrode circuit insulator of the present invention and fitting
Structural schematic diagram.
Fig. 4 is cross arm side hardware fitting in the embodiment three of the replacement tool of a kind of ground electrode circuit insulator of the present invention and fitting
The structural schematic diagram of replacement tool.
Fig. 5 is replacing insulator in the embodiment three of the replacement tool of a kind of ground electrode circuit insulator of the present invention and fitting
The structural schematic diagram of tool.
Fig. 6 is side of wire fitting in the embodiment three of the replacement tool of a kind of ground electrode circuit insulator of the present invention and fitting
The structural schematic diagram of replacement tool.
Specific embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
Embodiment one:
A kind of replacement tool of ground electrode circuit insulator and fitting, including two tooling orders being axially arranged along conducting wire
Body, as shown in Figure 1, each tool monomer includes securing supports, screw rod 1, insulate and draw high part, fixture and operating handle 9.
In the present embodiment, securing supports are upper blocking seat 2, and insulation tensioning member is insulation pull-rod 3, and fixture is horizontal double-hung
Card 4.
Screw rod 1 is mounted in upper blocking seat 2 and can move up and down with respect to upper blocking seat 2,1 lower end of screw rod and insulation 3 upper end of pull-rod
It connects firmly, insulation 3 lower end of pull-rod is detachably connected with horizontal double-hung card 4.
Upper blocking seat 2 includes support lugn and the through-hole that screw mandrel passes through, and upper blocking seat 2 is supported on tower head gold by support lugn
On double angle 12 at tool string hanging point, the support for being conveniently replaceable tool is fixed.Bearing block 5, bearing block 5 are installed on upper blocking seat 2
Interior to be equipped with bearing 6, screw rod 2 is set in bearing 6, and pressing ring 7 is threaded on bearing block 5, and pressing ring 7 limits bearing 6 in axis
It holds on seat 5, so that bearing does not fall out bearing block during screw rod rotates within the bearing.Screw rod 1 is externally provided with to match with screw rod 1
The ratchet casing tube 8 of conjunction, the lower end of ratchet casing tube 8 are against on 6 end face of bearing, and operating handle 9 is mounted on ratchet casing tube 8 and and spine
Wheel casing 8 is perpendicular, and the threaded upper ends of ratchet casing tube 8 are connected with lasso 10.Screw rod is matched with ratchet casing tube, passes through operation handlebar
Hand rotating ratchet casing is loosened with the tightening for realizing screw rod, and wherein operating handle is vertical with ratchet casing tube so that rapid operation.
Further, the contact surface of upper blocking seat 2 and bearing block 5 is recessed spherical surface.On the one hand, in the gravity of screw rod
Under, ratchet carriage compresses bearing, so that bearing block, by lower pressure, bearing block is pressed toward at the center of upper blocking seat, receives in screw rod
It is tight to cause bearing offset, screw rod stuck with generation sliding that is when loosening, avoiding bearing block；On the other hand, bearing block is to upper card
Seat generates radial force and downward pressure around, since this radial force generates friction between upper blocking seat and upper angle steel, thus
Avoid the sliding of upper blocking seat.
The upper and lower ends of insulation pull-rod 3 are equipped with mounting ring, and the lower end of screw rod 1 is equipped with assembling fork, the upper end for the pull-rod 3 that insulate
Mounting ring connect with the assembling fork of 1 lower end of screw rod by screw, in the present embodiment, which is milled screw, facilitates hand stubborn
To dismount screw rod and insulation pull-rod.The mounting ring of 3 lower end of pull-rod that insulate and horizontal double-hung card 4 are connected firmly by the connector 11 that commutates.
The both ends of horizontal double-hung card 4 are respectively equipped with the suspension hook triggered upwards, horizontal 4 middle part of double-hung card and insulation pull-rod
3 lower ends connect firmly.
The replacement tool of ground electrode circuit strain insulator and fitting that embodiment one provides is used for wire jumper insulator and gold
Tool replacement and the replacement of simply connected conducting wire suspension insulator and fitting.In use, being made with the double angle at tower head hardware string hanging point
For upper blocking seat supporting point, after the suspension hook of horizontal double-hung card catches on conducting wire, screw rod is tightened, can not only realize the replacement of insulator, but also
The replacement from connection tower hanging plate to fittings all suspension clamp can be achieved.Wherein, the distance ratio due to wire jumper away from its double angle
The small about 600mm of distance of the simply connected conducting wire away from its double angle, therefore, wire jumper insulator and hardware fitting replacement and simply connected wire insulation and
Hardware fitting replacement uses the insulation pull-rod of different length.
Embodiment two:
A kind of replacement tool of ground electrode circuit insulator and fitting, as shown in Fig. 2, existing with the difference of embodiment one
In 3 lower end of insulation pull-rod of the replacement tool of embodiment two connects firmly flower pattern card 13 with the horizontal double-hung in alternative embodiment one
Card 4, flower pattern card 13 are equipped with for blocking the Card trough for setting yoke plate 14, and flower pattern card 13 is equipped with through the snap-gauge hole of Card trough.It is real
The structure that do not address in example two is applied to be the same as example 1.
The replacement tool of ground electrode circuit strain insulator and fitting that embodiment two provides is exhausted for duplex conducting wire pendency
The replacement of edge substring.In use, using the double angle at tower head hardware string hanging point as upper blocking seat supporting point, by strain insulator yoke plate and flower
Type card is fixed, and is tightened screw rod, can not only be realized the replacement of insulator, but also can be realized from connection tower hanging plate to gold all right angle hanging plate
The replacement of tool.
Embodiment three:
A kind of replacement tool of ground electrode circuit insulator and fitting, more for double strain wire insulation and fitting
It changes, including cross arm side hardware fitting replacement tool, insulator replacement tool, side of wire hardware fitting replacement tool.
As shown in figure 4, cross arm side hardware fitting replacement tool includes the symmetrically arranged two cross-arm side works of sagittal plane in conducting wire
Has a monomer, cross-arm side tool monomer includes that securing supports, screw rod, insulation draw high part, fixture and operating handle.Cross arm side hardware fitting
The screw rod of replacement tool monomer includes hydraulic screw rod 101 and mechanical lead screw 102, and securing supports are to be arranged in hydraulic screw rod 101
The fixation fork 201 of upper end, 101 lower end of hydraulic screw rod are connected firmly with 102 upper end of mechanical lead screw, and it is insulation pulling plate 301 that insulation, which draws high part,
102 lower end of mechanical lead screw is connected firmly with 301 upper end of insulation pulling plate, fixture be connecting joint 401,301 lower end of insulation pulling plate with couple
Connector 401 connects firmly.Hydraulic screw rod 101 is equipped with hydraulic screw rod operating handle 901, and mechanical lead screw 102 is equipped with corresponding machinery
Screw rod operating handle 902.
Cross arm side hardware fitting replacement tool is used for the replacement of cross arm side hardware fitting, since double strain conductor size is longer, tightening
Larger pulling force is needed, therefore uses symmetrically arranged two cross-arm sides tool monomer, two cross-arm side tool monomers two connect
First 401 are connected to the both ends of yoke plate, and two fixation forks 201 are fixed on the construction hole on cross-arm, first use mechanical lead screw
102 pre-tighten, and tighten when painstaking larger, then with hydraulic screw rod 101.
As shown in figure 5, insulator replacement tool includes that securing supports, screw rod, insulation draw high part, fixture and operation handlebar
Hand.The securing supports of insulator replacement tool are machete card 202, and machete card 202 is arranged on screw rod, and it is exhausted that insulation, which draws high part,
Edge insulating sublayer pull-rod 302, fixture are overturning plate clamp 402, and the U-shaped connecting plate 15 on 402 connecting insulator bottom end hanging plate of overturning plate clamp turns over
The card body and turnover panel of board 402 can relatively rotate, so that insulator replacement tool adapts to the length of insulator, machete card 202 is hooked
Firmly insulator top hanging plate 16 tightens insulator screw rod 103 to replace insulator.
Several overturning plate clamp installation and adjustment hole is equipped on insulator dielectric pull-rod 302 along the vertical direction.Due to insulator model
It is different, overturning plate clamp installation and adjustment hole along the vertical direction is set to adjust the installation site of overturning plate clamp, with suitable on insulation pull-rod
Answer the insulator of different model.
As shown in fig. 6, side of wire hardware fitting replacement tool includes that securing supports, screw rod, insulation draw high part, fixture and operation
Handle.The securing supports of side of wire hardware fitting replacement tool are yoke plate hook 203, and screw rod is mechanical-stretching screw rod 104, and insulation stretches
Part is fitting insulation pull-rod 303, and fixture is lead clamping device 403.
Side of wire hardware fitting replacement tool is used for the replacement of side of wire fitting.Yoke plate hook 203 is fixed on yoke plate, conducting wire card line
Device 403 is clamped on conducting wire, tightens mechanical-stretching screw rod 104 with restringing side fitting.
In addition to above preferred embodiment, there are other embodiments of the invention, and those skilled in the art can be according to this
Invention makes various changes and modifications, and as long as it does not depart from the spirit of the invention, should belong to appended claims of the present invention and determines
The range of justice.
Claims (10)
1. the replacement tool of ground electrode circuit insulator and fitting, which is characterized in that including tool monomer, each tool monomer packet
Include screw rod, insulation draws high part and the fixture of conducting wire or insulator or yoke plate is set for card, the lower end of the screw rod and the insulation
The upper end for drawing high part connects firmly, and the lower end that the insulation draws high part is connected firmly with the fixture, and the screw rod is equipped with operating handle, institute
It states screw rod and is connected with support fixing piece.
2. the replacement tool of ground electrode circuit insulator according to claim 1 and fitting, which is characterized in that the fixation
Supporting element is upper blocking seat, and the upper blocking seat includes support lugn and the through-hole that screw mandrel passes through, and the upper blocking seat is equipped with bearing
Seat is equipped with bearing in bearing block, and the screw rod is set in bearing, is threaded with pressing ring on the bearing block, and pressing ring is by institute
Bearing limit is stated on bearing block, the screw rod is externally provided with the ratchet casing tube matched with screw rod, and the lower end of ratchet casing tube is against
On bearing face, the operating handle is mounted on ratchet casing tube and perpendicular with ratchet casing tube.
3. the replacement tool of ground electrode circuit insulator according to claim 2 and fitting, which is characterized in that the fixture
For horizontal double-hung card, the both ends of horizontal double-hung card are respectively equipped with the suspension hook triggered upwards, the middle part of horizontal double-hung card with
The lower end that the insulation draws high part connects firmly.
4. the replacement tool of ground electrode circuit insulator according to claim 2 and fitting, which is characterized in that the fixture
For flower pattern card, flower pattern card is equipped with for blocking the Card trough for setting yoke plate, and flower pattern card is equipped with through the snap-gauge hole of the Card trough.
5. the replacement tool of ground electrode circuit insulator according to claim 3 or 4 and fitting, which is characterized in that including
At least two tool monomers being axially arranged along conducting wire.
6. the replacement tool of ground electrode circuit insulator according to claim 1 and fitting, which is characterized in that the upper card
The contact surface of seat and the bearing block is recessed spherical surface.
7. the replacement tool of ground electrode circuit insulator according to claim 1 and fitting, which is characterized in that the replacement
Tool is cross arm side hardware fitting replacement tool, and the cross arm side hardware fitting replacement tool includes in the sagittal plane of conducting wire symmetrically arranged two
A cross-arm side tool monomer, in the cross-arm side tool monomer, the screw rod includes the hydraulic screw rod that head and the tail connect firmly and mechanical silk
Bar.
8. the replacement tool of ground electrode circuit insulator according to claim 1 and fitting, which is characterized in that the replacement
Tool is insulator replacement tool, and the support fixing piece is machete card, and the fixture is overturning plate clamp.
9. the replacement tool of ground electrode circuit insulator according to claim 8 and fitting, which is characterized in that the insulation
It draws high and is equipped with several overturning plate clamp installation and adjustment hole on part along the vertical direction.
10. the replacement tool of ground electrode circuit insulator according to claim 1 and fitting, which is characterized in that it is described more
Changing tool is side of wire hardware fitting replacement tool, and the fixture is lead clamping device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810866384.3A CN109217170A (en) | 2018-08-01 | 2018-08-01 | The replacement tool of ground electrode circuit insulator and fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810866384.3A CN109217170A (en) | 2018-08-01 | 2018-08-01 | The replacement tool of ground electrode circuit insulator and fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109217170A true CN109217170A (en) | 2019-01-15 |
Family
ID=64988427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810866384.3A Pending CN109217170A (en) | 2018-08-01 | 2018-08-01 | The replacement tool of ground electrode circuit insulator and fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109217170A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111799696A (en) * | 2020-06-29 | 2020-10-20 | 国家电网有限公司 | Tool for replacing ultra-high voltage transmission line clamp |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000059936A (en) * | 1998-08-10 | 2000-02-25 | Chubu Electric Power Co Inc | Insulator replacing device for two-string strain- insulator apparatus |
| WO2015078279A1 (en) * | 2013-11-27 | 2015-06-04 | 国家电网公司 | Live overhaul process for ±800 kv ultra-high voltage dc power transmission line |
| CN105337217A (en) * | 2015-11-26 | 2016-02-17 | 国网河南省电力公司检修公司 | Electrified replacing tool and method for extra-high-voltage grounding electrode line insulator |
| CN105932599A (en) * | 2016-06-17 | 2016-09-07 | 国网湖南省电力公司带电作业中心 | Tool set capable of replacing insulator chain of ultra-high-voltage transmission line under electrified state and use method for tool set |
| CN106451214A (en) * | 2016-10-28 | 2017-02-22 | 国网浙江省电力公司金华供电公司 | Combined tool for electrically replacing extra-high voltage same-tower double-circuit tension insulator |
| CN208656288U (en) * | 2018-08-01 | 2019-03-26 | 国网浙江省电力有限公司金华供电公司 | The replacement tool of ground electrode circuit insulator and fitting |
-
2018
- 2018-08-01 CN CN201810866384.3A patent/CN109217170A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000059936A (en) * | 1998-08-10 | 2000-02-25 | Chubu Electric Power Co Inc | Insulator replacing device for two-string strain- insulator apparatus |
| WO2015078279A1 (en) * | 2013-11-27 | 2015-06-04 | 国家电网公司 | Live overhaul process for ±800 kv ultra-high voltage dc power transmission line |
| CN105337217A (en) * | 2015-11-26 | 2016-02-17 | 国网河南省电力公司检修公司 | Electrified replacing tool and method for extra-high-voltage grounding electrode line insulator |
| CN105932599A (en) * | 2016-06-17 | 2016-09-07 | 国网湖南省电力公司带电作业中心 | Tool set capable of replacing insulator chain of ultra-high-voltage transmission line under electrified state and use method for tool set |
| CN106451214A (en) * | 2016-10-28 | 2017-02-22 | 国网浙江省电力公司金华供电公司 | Combined tool for electrically replacing extra-high voltage same-tower double-circuit tension insulator |
| CN208656288U (en) * | 2018-08-01 | 2019-03-26 | 国网浙江省电力有限公司金华供电公司 | The replacement tool of ground electrode circuit insulator and fitting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111799696A (en) * | 2020-06-29 | 2020-10-20 | 国家电网有限公司 | Tool for replacing ultra-high voltage transmission line clamp |
| CN111799696B (en) * | 2020-06-29 | 2021-07-06 | 国家电网有限公司 | Tool for replacing ultra-high voltage transmission line clamp |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20130269180A1 (en) | Maintenance tool for insulator of direct current transmission line | |
| CN101174761B (en) | High-voltage power line tension insulator string forward spin live-wire altering method | |
| CN103594968A (en) | Lifting device of multiple divided conductors of transmission tower | |
| CN208656288U (en) | The replacement tool of ground electrode circuit insulator and fitting | |
| CN101814707B (en) | Tool for live replacement of 220kV line 'V' string insulator and method | |
| CN105514877A (en) | Cross arm clamp for insulator replacement of steel pipe pole of common-tower double-circuit lines | |
| CN109217170A (en) | The replacement tool of ground electrode circuit insulator and fitting | |
| CN111564713B (en) | Branch lead assembly and use method thereof | |
| CN211239257U (en) | Drainage line pair bracing strut convenient to installation | |
| CN104269669B (en) | A kind of earth lead | |
| CN111697487A (en) | Voltage-measurable live-line double-insulator-string replacing device and operation method | |
| CN103078284A (en) | Rapid working clamp of pre-hanging type power distribution line de-icing engaged line | |
| CN206712405U (en) | Rigid insulation part flow arrangement | |
| CN106033872A (en) | Tool for equipotential replacement of single-joint double-flexible bus tension insulator | |
| CN115764355A (en) | Gravity self-locking drainage wire clamp | |
| CN209625964U (en) | A kind of transformer connection mechanism | |
| CN205609783U (en) | Emergent short circuit tubulose fastener | |
| CN211208698U (en) | Novel complete set grounding device for 220kV power transmission line | |
| CN104393514A (en) | An insulation pull rod applied to a plurality of operating environments of a transformer station | |
| CN216530448U (en) | Live replacement strain insulator-string wire side gold utensil and adjustment wire arc specialized tool that hangs down | |
| CN114204508A (en) | Grounding ring device of cable terminal | |
| CN209434754U (en) | Replace the combination tool of direct current grounding pole route suspension string | |
| CN209434747U (en) | The combination tool of horizontal rotation method replacement direct current grounding pole line tension string | |
| CN207069254U (en) | 500kV ground wire assembly and disassembly servicing units | |
| CN107068366B (en) | A kind of sub-connecting switch of transformer lead frame |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |