CN105645280A - Intelligent auxiliary platform for assembling and disassembling GIS - Google Patents
Intelligent auxiliary platform for assembling and disassembling GIS Download PDFInfo
- Publication number
- CN105645280A CN105645280A CN201610157613.5A CN201610157613A CN105645280A CN 105645280 A CN105645280 A CN 105645280A CN 201610157613 A CN201610157613 A CN 201610157613A CN 105645280 A CN105645280 A CN 105645280A
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- gis
- slide unit
- dismounting
- arm
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F2700/00—Lifting apparatus
- B66F2700/05—Hydraulic jacks
- B66F2700/055—Jacks with a single cylinder
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention relates to an auxiliary device and particularly relates to an intelligent auxiliary platform for assembling and disassembling GIS. The intelligent auxiliary platform comprises suspension arms, lifting cylinders, support legs, wheels, a support seat, sliding tables, pulleys, first fixed cylinders, second fixed cylinders and paw components, wherein the sliding tables are mounted on the support seat and are in sliding fit with the support seat; the support legs and the wheels are mounted at the bottom of the support seat; cylinder bodies of the lifting cylinders are mounted on the sliding tables respectively; one end of each suspension arm is connected to the telescopic end of each lifting cylinder, and one pulley is arranged at the other end of each suspension arm; cylinder bodies of the first fixed cylinders are also arranged on the suspension arms; the paw components are mounted on the telescopic ends of the first fixed cylinders; cylinder bodies of the second fixed cylinders are also mounted on the sliding tables; the telescopic ends of the second fixed cylinders are connected to the paw components. Due to the adoption of the platform, indoor GIS equipment can be quickly, safely and accurately mounted and maintained; meanwhile, the working efficiency is improved; the labor intensity of operators is reduced; the risk in the operation process is reduced; the personal safety is ensured; and a hydraulic propulsion mechanism is accurate enough.
Description
Technical field
The present invention relates to a kind of auxiliary device, specifically a kind of GIS dismounting intelligence assistance platform.
Background technology
The english name that GIS (GasInsulatedSubstation) is gas insulated transformer substation is called for short. In gas insulated transformer substation, in the pipeline tree that most electrical equipment is all directly or indirectly sealed in metallic conduit and sleeve pipe forms, any switch not visible from outside, circuit and binding post. The inside of pipeline tree all adopts SF6 gas as dielectric, and is sealed in grounded metal cylinder by all of component of high voltage electrical apparatus. It is the high voltage distribution installation combined by chopper, bus, isolation switch, voltage transformer, current transformer, spark gap, 7 kinds of High-Voltage Electrical Appliances of sleeve pipe.
GIS transformer station is because the non-maintaining property of reliability is good and take up an area little advantage in recent years, has been obtained for popularizing very greatly, while GIS device maintenance workload also can be increasing.
The increase of work operations amount and the situation that job requirements is higher is dismounted for GIS. Currently mainly there is three below problem:
Existence conditions dismounting operation feasibility is very poor. The existing GIS transformer substation switch indoor overwhelming majority is configured without driving, and only the suspension ring in roof pre-installation, add that some GIS is in indoor, it is impossible to use loop wheel machine operation. The suspension ring on current roof in use, not only cannot move by position, and because on roof, its suitability is had a greatly reduced quality.
Existing dismounting operating type poor stability. When adopting pole or scaffold lifting dismounting operation, the strong point of pole is difficult to select, and scaffold is too thin, and load-bearing hardly results in guarantee. GIS air chamber easily rocks, and safety also can not get ensureing. And these implements are typically all what rent from the outside came, these provisional equipments lack the specialized safety test of normalization and monitoring, and equipment dependability can not get ensureing.
GIS device dismounting process is had negative effect by existing dismounting operating type, particularly naturally the rocking of hoist cable, and the mechanical system lifting of hoist cable, arm. In existing dismounting operation, GIS air chamber para-position increases uncertainty when will definitely not cause dismounting, and is greatly increased man-hour, the generation of the situations such as sealing surface unbalance stress does not reach requirement, sealing rubber ring distortion. GIS air chamber sealing is because contact surface para-position inaccuracy or contact surface have uneven internal stress to be subject to potential impact.
The platform for GIS dismounting of currently available technology, patent CN105347206A is had to disclose a kind of GIS dismounting intelligence assistance platform, including base, and it is arranged on the derricking gear on base, slide mechanism, fuel tank, front pushing mechanism, front gear mechanism, wherein, described slide mechanism includes the guide rail being fixedly mounted on base upper surface, and is movably arranged on 2 slide units on guide rail, is provided with the displacement oil cylinder for regulating 2 slide unit spacing between described slide unit; Described derricking gear includes the elevating ram being separately positioned on slide unit, it is arranged on the arm on elevating ram hydraulic stem, is arranged on the suspension hook of arm front end, and is arranged on the reel on base and reducing motor, described suspension hook is connected with reel by rope, and reel is driven by reducing motor; Described front pushing mechanism includes being respectively perpendicular the lead screw assembly being arranged on 2 slide units, and the top of lead screw assembly is provided with push oil cylinder before horizontal direction, and the hydraulic rod top of front push oil cylinder pushes away claw before being provided with; Described front gear mechanism includes the front shelves oil cylinder being horizontally set on elevating ram hydraulic stem, and described front shelves oil cylinder hydraulic masthead portion is provided with front shelves claw; Pushing away before described and be equipped with pressure transducer on claw and front shelves claw, described fuel tank respectively each oil cylinder provides oil sources.
Find that GIS of the prior art dismounting intelligence assistance platform still lacks rapid, safe, precision and work efficiency is low through practice.
Summary of the invention
For the problems of the prior art, the present invention provides a kind of rapid, safe, precision realizing indoor GIS device installation and repairing and improves work efficiency, risk in the labor intensity of reduction operating personnel and operation process, it is ensured that personal safety and hydraulic-feed mechanism fixing mode enough accurate, multipoint positioning is sufficiently tight so that the GIS that the precision of GIS device dismounting maintenance link is guaranteed dismounts intelligent assistance platform
For realizing above technical purpose, the technical scheme is that a kind of GIS dismounting intelligence assistance platform, including arm, elevating ram, leg, wheel, bearing, slide unit, paw assembly, first fixed oil cylinder and the second fixed oil cylinder, described slide unit is arranged on the top of bearing and is slidably matched, described leg and wheel are installed in the bottom of bearing, the cylinder body of described elevating ram is arranged on slide unit, one end of described arm is connected with the telescopic end of elevating ram, the other end of described arm is provided with pulley, the cylinder body of described first fixed oil cylinder is also provided on arm, the telescopic end of described first fixed oil cylinder is provided with paw assembly, the cylinder body of described second fixed oil cylinder is also mounted on slide unit, the telescopic end of described second fixed oil cylinder is connected with paw assembly.
As preferably, described paw assembly and the first fixed oil cylinder are rotatably assorted.
As preferably, described paw assembly and the second fixed oil cylinder are rotatably assorted.
As improvement, described slide unit quantity is at least two, and is connected by displacement oil cylinder between adjacent slide unit.
As preferably, described arm is three hinge arrangements.
As preferably, also including winding plant, described winding plant is arranged on slide unit.
As preferably, described slide unit is also spirally connected with bearing.
As preferably, also including front push oil cylinder, the cylinder body of described front push oil cylinder is arranged on bearing, and the telescopic end of described front push oil cylinder is connected with leg.
As can be seen from the above description, the present invention possesses advantages below: indoor GIS device installation and repairing is rapid, safe, precision and improve work efficiency to adopt this platform not only can realize, reduce operating personnel's labor intensity and operation process risk, it is ensured that personal safety and hydraulic-feed mechanism fixing mode enough accurate, multipoint positioning is sufficiently tight makes whole GIS device dismounting maintenance link precision.
Accompanying drawing explanation
Fig. 1 is the structure chart of GIS dismounting intelligence assistance platform.
Fig. 2 is the side view of GIS dismounting intelligence assistance platform.
Fig. 3 is the top view of GIS dismounting intelligence assistance platform.
Accompanying drawing illustrates: 1, arm, 2, elevating ram, 3, winding plant, 4, leg, 5, wheel, 6, bearing, 7, slide unit, 8, pulley, 9, front push oil cylinder, 11, paw assembly, and the 12, first fixed oil cylinder, the 13, second fixed oil cylinder, 14, displacement oil cylinder.
Detailed description of the invention
With reference to the accompanying drawings described in 1 to 3, a kind of GIS dismounting intelligence assistance platform, including arm 1, elevating ram 2, leg 4, wheel 5, bearing 6, slide unit 7, pulley 8, paw assembly 11, first fixed oil cylinder 12 and the second fixed oil cylinder 13, described slide unit 7 is arranged on the top of bearing 6 and is slidably matched, described leg 4 and wheel 5 are installed in the bottom of bearing 6, the cylinder body of described elevating ram 2 is arranged on slide unit 7, one end of described arm 1 is connected with the telescopic end of elevating ram 2, the other end of described arm 1 is provided with pulley 8, the cylinder body of described first fixed oil cylinder 12 is also provided on arm 1, the telescopic end of described first fixed oil cylinder 12 is provided with paw assembly 11, the cylinder body of described second fixed oil cylinder 13 is also mounted on slide unit 7, the telescopic end of described second fixed oil cylinder 13 is connected with paw assembly 11, described paw assembly 11 and the first fixed oil cylinder 12 are rotatably assorted, described paw assembly 11 and the second fixed oil cylinder 13 are rotatably assorted, also including displacement oil cylinder 14, described slide unit 7 quantity is connected by displacement oil cylinder 14 between at least two and adjacent slide unit 7, described arm 1 is three hinge arrangements, also including winding plant 3, described winding plant 3 is arranged on slide unit 7, described slide unit 7 is also spirally connected with bearing 6, also including front push oil cylinder 9, the cylinder body of described front push oil cylinder 9 is arranged on bearing 6, and the telescopic end of described front push oil cylinder 9 is connected with leg 4.
During whole GIS dismounting intelligence assistance platform inoperative, length and width are 2000 �� 1500, and the hydraulic cylinder height of installation is 1.8m, and stroke is 1.4m, install total height 2.8m, and lifting minimum altitude is about 3.0m, and maximum height during lifting is about 4.4m.
Being provided with 4 wheels bottom the slide unit of described whole GIS dismounting intelligence assistance platform, for the movement under not working condition, transport and mobile in order to convenient, above bearing, each parts are all detachable, just can normally use after only need to being connected with during installation. Being provided with the supporting leg of two extensions on bearing, after dolly arrives the operating position specified, two extension supporting legs stretch out. When before two, support is elongated to appointment position, two supporting cylinders action simultaneously that two supporting cylinders that front support is installed and bearing are installed, car is lifted and allows wheel leave ground. Before two, support can allow the overturning pivot of dolly move forward and add the arm of force such that it is able to better ensure the balance of car body, it is prevented that car body topples when hanging liter object.
Substantially determine after operating position, main hydraulic cylinder is started working, the range of hydraulic cylinder is 1400mm, by the adjustment of hydraulic cylinder being controlled the height of fixed pulley, fixed pulley is made to be higher than equipment within the specific limits, and can by the movement of elevating ram control front oil cylinder and disassemblerassembler to the heart, it is possible to ensure the correct in the heart of front and device location. The simultaneously different reversal valve control of hydraulic cylinder is capable of independent control, realizes workpiece para-position in the horizontal direction by adjusting the relative altitude of two oil cylinders in installation process.
Owing to GIS device volume, weight are all bigger, so adopting common clamping or picking-up to be all difficulty with expection requirement, and adopt specific process can increase the volume of machine, so this dismounting platform adopts the mode of fixed pulley lifting, it is provided that the main pulling force of fixing GIS device.Arm is that three linkages can guarantee that its stability in lifting process, is provided with fixed pulley simultaneously, provides correct lifting position for lifting rope on arm. Arm is bearing pin dismounting easy to connect, thus the inconvenience decreased in transportation.
After considering the shape of GIS device and slinging, equipment rocks situation, it is equipped with two fixed claws, owing in lifting process, disassemblerassembler mainly rocks in the plane being parallel to arm, so being equipped with two fixed claws to can be good at ensureing the stability of disassemblerassembler. Corpus unguis is by hydraulic cylinder driving, it is possible to meet the body requirement of different-diameter model. Owing to the material of GIS device is aluminium alloy, and tube wall is relatively thin, and therefore fixing grabbing is designed as fixed angle. Its main function is fixing equipment, allows equipment remain stationary when handling. Because equipment has vertically and laterally two class, fixing grabbing can 180 �� of equipment rotated to meet different shape. Hydraulic cylinder controls to be capable of independent control with different reversal valves, is able to effectively ensure that the para-position of the vertical direction of workpiece is accurate in installation process para-position.
After having dismantled, because of the volume weight problem of disassemblerassembler, it is not easy to manually equipment be pushed to transport vehicle. By the push rod installed before platform, it is possible to help to solve this problem. After having dismantled, loosening steel wire rope and equipment drops to suitable height, the hydraulic stem in push rod stretches out, and equipment is pushed to transport vehicle. Before push away hydraulic cylinder by the screw mechanism in perpendicular drive can in the vertical direction move up and down the disassemblerassembler that can adapt to different-diameter to heart problem. 1000mm is should be greater than, owing to single oil cylinder stroke is limited, therefore it is contemplated that use double; two oil cylinder series connection to reach requirement according to push oil cylinder stroke before actual requirement.
Time two arms are applied simultaneously, owing to the length of disassemblerassembler differs, then can not the horizontal good requirement adapting to dismounting different size object if fixing the position of two arms, so adopting sliding platform to be placed on sliding platform by derricking gear, connect with displacement oil cylinder in the middle of two sliding platforms, after fixing to a platform bolt and base, the loose sliding platform motion of flexible drive of displacement oil cylinder, thus the relative position controlled between two platforms, it is ensured that it can adapt to the requirement of different length workpiece.
Winding plant mainly have a reel and reducing motor with the use of, lifting process provides pulling force, motor should select the motor of band brake, it is ensured that the phenomenon of downslide suddenly does not occur in the process drawn high.
Above the present invention and embodiment thereof being described, this description does not have restricted, and shown in accompanying drawing is also one of embodiments of the present invention, and actual structure is not limited thereto. If generally speaking those of ordinary skill in the art is enlightened by it, when without departing from the invention objective, design the frame mode similar to this technical scheme and embodiment without creationary, protection scope of the present invention all should be belonged to.
Claims (8)
1. a GIS dismounting intelligence assistance platform, including arm (1), elevating ram (2), leg (4), wheel (5), bearing (6), slide unit (7), paw assembly (11), first fixed oil cylinder (12) and the second fixed oil cylinder (13), described slide unit (7) is arranged on the top of bearing (6) and is slidably matched, described leg (4) and wheel (5) are installed in the bottom of bearing (6), the cylinder body of described elevating ram (2) is arranged on slide unit (7), one end of described arm (1) is connected with the telescopic end of elevating ram (2), the other end of described arm (1) is provided with pulley (8), the cylinder body of described first fixed oil cylinder (12) is also provided on arm (1), the telescopic end of described first fixed oil cylinder (12) is provided with paw assembly (11), the cylinder body of described second fixed oil cylinder (13) is also mounted on slide unit (7), the telescopic end of described second fixed oil cylinder (13) is connected with paw assembly (11).
2. GIS according to claim 1 dismounting intelligence assistance platform, it is characterised in that: described paw assembly (11) and the first fixed oil cylinder (12) are rotatably assorted.
3. GIS according to claim 1 dismounting intelligence assistance platform, it is characterised in that: described paw assembly (11) and the second fixed oil cylinder (13) are rotatably assorted.
4. GIS according to claim 1 dismounting intelligence assistance platform, it is characterized in that: also include displacement oil cylinder (14), described slide unit (7) quantity is connected by displacement oil cylinder (14) between at least two and adjacent slide unit (7).
5. GIS according to claim 1 dismounting intelligence assistance platform, it is characterised in that: described arm (1) is three hinge arrangements.
6. GIS according to claim 1 dismounting intelligence assistance platform, it is characterised in that: also including winding plant (3), described winding plant (3) is arranged on slide unit (7).
7. GIS according to claim 1 dismounting intelligence assistance platform, it is characterised in that: described slide unit (7) is also spirally connected with bearing (6).
8. GIS according to claim 1 dismounting intelligence assistance platform, it is characterized in that: also include front push oil cylinder (9), the cylinder body of described front push oil cylinder (9) is arranged on bearing (6), and the telescopic end of described front push oil cylinder (9) is connected with leg (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610157613.5A CN105645280A (en) | 2016-03-18 | 2016-03-18 | Intelligent auxiliary platform for assembling and disassembling GIS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610157613.5A CN105645280A (en) | 2016-03-18 | 2016-03-18 | Intelligent auxiliary platform for assembling and disassembling GIS |
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|---|---|
| CN105645280A true CN105645280A (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610157613.5A Pending CN105645280A (en) | 2016-03-18 | 2016-03-18 | Intelligent auxiliary platform for assembling and disassembling GIS |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182010A (en) * | 2016-08-18 | 2016-12-07 | 上海交通大学 | Intelligent substation gold utensil dismounting automatic job robot and using method thereof |
| CN107762134A (en) * | 2017-10-19 | 2018-03-06 | 上海应用技术大学 | A kind of building scaffold leg reinforces steady device |
| CN110104572A (en) * | 2019-05-27 | 2019-08-09 | 宜兴市宜安电力工具制造有限公司 | Hotline maintenance robot rotary-top boom |
| CN110797791A (en) * | 2019-11-04 | 2020-02-14 | 云南送变电工程有限公司 | Method for overhauling lower 500kVGIL tubular bus without accompanying shutdown |
| CN111056455A (en) * | 2019-12-30 | 2020-04-24 | 徐州德慧企业管理有限公司 | Concrete pouring positioning equipment for iron tower base of communication base station |
| CN111732007A (en) * | 2020-06-29 | 2020-10-02 | 北京卫星环境工程研究所 | General hoisting tool suitable for inside manned spacecraft |
| CN112110373A (en) * | 2020-09-18 | 2020-12-22 | 浙江宝泰龙金属制品有限公司 | Lifting mechanism |
| CN112299282A (en) * | 2020-10-27 | 2021-02-02 | 苏州威尔力液压升降机械有限公司 | Anti-falling hydraulic lifting mechanism and equipment |
| CN113716482A (en) * | 2021-08-30 | 2021-11-30 | 国网山东省电力公司烟台市福山区供电公司 | Installation foundation of GIS equipment |
| CN113753796A (en) * | 2021-08-10 | 2021-12-07 | 浙江省送变电工程有限公司 | Anti-inclination power grid GIS equipment carrying and jacking device |
| CN114084812A (en) * | 2021-11-15 | 2022-02-25 | 国家电网有限公司 | 35kV current transformer lifting device of transformer substation |
| CN118004881A (en) * | 2024-04-09 | 2024-05-10 | 国网山东省电力公司泰安供电公司 | Auxiliary hoisting equipment for GIS equipment of semi-indoor substation |
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| CN203820326U (en) * | 2014-05-06 | 2014-09-10 | 国网上海市电力公司 | GIS (gas insulated switchgear) indoor truss type rocker arm hanging bracket |
| CN203911381U (en) * | 2014-06-12 | 2014-10-29 | 国家电网公司 | GIS cable terminal installation handcart |
| CN105366567A (en) * | 2015-12-04 | 2016-03-02 | 国网浙江省电力公司绍兴供电公司 | Intelligent assisting platform for dismounting and mounting of GIS (Gas Insulated Substation) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203820326U (en) * | 2014-05-06 | 2014-09-10 | 国网上海市电力公司 | GIS (gas insulated switchgear) indoor truss type rocker arm hanging bracket |
| CN203911381U (en) * | 2014-06-12 | 2014-10-29 | 国家电网公司 | GIS cable terminal installation handcart |
| CN105366567A (en) * | 2015-12-04 | 2016-03-02 | 国网浙江省电力公司绍兴供电公司 | Intelligent assisting platform for dismounting and mounting of GIS (Gas Insulated Substation) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182010A (en) * | 2016-08-18 | 2016-12-07 | 上海交通大学 | Intelligent substation gold utensil dismounting automatic job robot and using method thereof |
| CN107762134A (en) * | 2017-10-19 | 2018-03-06 | 上海应用技术大学 | A kind of building scaffold leg reinforces steady device |
| CN107762134B (en) * | 2017-10-19 | 2020-03-17 | 上海应用技术大学 | Steady device is consolidated to building scaffold stabilizer blade |
| CN110104572A (en) * | 2019-05-27 | 2019-08-09 | 宜兴市宜安电力工具制造有限公司 | Hotline maintenance robot rotary-top boom |
| CN110104572B (en) * | 2019-05-27 | 2024-04-16 | 宜兴市宜安电力工具制造有限公司 | Top rotary suspension arm of electrified overhaul robot |
| CN110797791B (en) * | 2019-11-04 | 2021-01-26 | 云南送变电工程有限公司 | Method for overhauling lower 500kVGIL tubular bus without accompanying shutdown |
| CN110797791A (en) * | 2019-11-04 | 2020-02-14 | 云南送变电工程有限公司 | Method for overhauling lower 500kVGIL tubular bus without accompanying shutdown |
| CN111056455A (en) * | 2019-12-30 | 2020-04-24 | 徐州德慧企业管理有限公司 | Concrete pouring positioning equipment for iron tower base of communication base station |
| CN111732007A (en) * | 2020-06-29 | 2020-10-02 | 北京卫星环境工程研究所 | General hoisting tool suitable for inside manned spacecraft |
| CN112110373A (en) * | 2020-09-18 | 2020-12-22 | 浙江宝泰龙金属制品有限公司 | Lifting mechanism |
| CN112110373B (en) * | 2020-09-18 | 2021-11-19 | 浙江宝泰龙金属制品有限公司 | Lifting mechanism |
| CN112299282A (en) * | 2020-10-27 | 2021-02-02 | 苏州威尔力液压升降机械有限公司 | Anti-falling hydraulic lifting mechanism and equipment |
| CN113753796A (en) * | 2021-08-10 | 2021-12-07 | 浙江省送变电工程有限公司 | Anti-inclination power grid GIS equipment carrying and jacking device |
| CN113716482A (en) * | 2021-08-30 | 2021-11-30 | 国网山东省电力公司烟台市福山区供电公司 | Installation foundation of GIS equipment |
| CN114084812A (en) * | 2021-11-15 | 2022-02-25 | 国家电网有限公司 | 35kV current transformer lifting device of transformer substation |
| CN114084812B (en) * | 2021-11-15 | 2024-04-02 | 国家电网有限公司 | Hoisting tool for 35kV current transformer of transformer substation |
| CN118004881A (en) * | 2024-04-09 | 2024-05-10 | 国网山东省电力公司泰安供电公司 | Auxiliary hoisting equipment for GIS equipment of semi-indoor substation |
| CN118004881B (en) * | 2024-04-09 | 2024-06-14 | 国网山东省电力公司泰安供电公司 | Auxiliary hoisting equipment for GIS equipment of semi-indoor substation |
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Application publication date: 20160608 |