CN111392596A - GIS current transformer integral dismounting device and dismounting method - Google Patents

GIS current transformer integral dismounting device and dismounting method Download PDF

Info

Publication number
CN111392596A
CN111392596A CN202010312027.XA CN202010312027A CN111392596A CN 111392596 A CN111392596 A CN 111392596A CN 202010312027 A CN202010312027 A CN 202010312027A CN 111392596 A CN111392596 A CN 111392596A
Authority
CN
China
Prior art keywords
current transformer
trolley
door
shaped
gis
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
Application number
CN202010312027.XA
Other languages
Chinese (zh)
Inventor
王翔
肖荣
韩波
孙昕
付海涛
董晓英
朱君
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.)
China Yangtze Power Co Ltd
Original Assignee
China Yangtze Power 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 China Yangtze Power Co Ltd filed Critical China Yangtze Power Co Ltd
Priority to CN202010312027.XA priority Critical patent/CN111392596A/en
Publication of CN111392596A publication Critical patent/CN111392596A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
    • B66C1/16—Slings with load-engaging platforms or frameworks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00—Trolleys or crabs, e.g. operating above runways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C5/00—Base supporting structures with legs
    • B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
    • B66C9/08—Runners; Runner bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

The device has the functions of integral hoisting and transferring of the current transformer CT, the current transformer CT is lifted and then seamlessly connected and directly falls onto a current transformer CT transfer trolley, the current transformer CT position can be flexibly adjusted in the process of butting of the current transformer CT return mounting flanges, and the flanges are convenient to accurately butt, the device is simple, compact and stable in structure, flexible in dismounting and adjusting in a narrow space between GIS equipment, obstacles such as cable groove boxes, electrical equipment and the like arranged at the bottom and on two sides of the GIS are avoided, dismounting engineering quantity of the GIS and accessory equipment thereof is reduced, simplicity and convenience in operation are achieved, labor is saved, accuracy and mounting quality of butt joint of the current transformer CT return mounting flanges are improved, operation efficiency is improved, and safety risks in the process of hoisting the current transformer CT are reduced.

Description

GIS current transformer integral dismounting device and dismounting method
Technical Field
The invention relates to the field of power transmission and transformation engineering transformation of a power system, in particular to a GIS current transformer integral dismounting device and a dismounting method.
Background
For a GIS (gas insulated metal enclosed switchgear) with a voltage level of 550kV or above, a horizontal breaker arrangement mode is often adopted, a current transformer CT is horizontally arranged at two ends of an incoming line and an outgoing line of the breaker, and the connection parts are in rigid flange connection. When the current transformer CT needs to be integrally replaced due to internal faults or capacity increasing transformation of equipment, the GIS is compact in structure, the space in a plant is narrow, and the cable groove boxes and the electrical equipment are uniformly arranged at the bottom and two sides of the GIS, so that special operation equipment is not available at present, and large automatic machinery with the same volume as a forklift can not be adopted for operation.
The current common construction mode is for setting up scaffold frame maintenance platform from ground as the construction operation platform of current transformer CT dismouting, uses GIS indoor bridge crane lifting hook or longmen gallows as current transformer CT hoist and mount hoisting point, uses the mode dismouting current transformer CT of conventional hoist hoists such as chain block and suspender and manpower assistance transport. Because the hoisting point is generally not right above the current transformer CT and the current transformer CT cannot be hoisted to move stably, in the process of hoisting the current transformer CT, an operator is required to adjust the position of the current transformer CT at any time and assist in keeping the current transformer CT to move stably, and particularly, when the current transformer CT is installed back to a flange connecting surface, high butt joint precision cannot be provided, and manual adjustment is required, so that time and labor are wasted. The conventional construction mode is large in construction work amount, long in consumed time, high in operation difficulty and high in safety quality risk.
There are also devices for mounting and dismounting current transformers in the prior art, for example, chinese patent document CN107658770A describes a mounting and dismounting platform for a current transformer of a switch cabinet, which comprises a lifting platform and a tray arranged on the lifting platform
The single-arm structure of the tray enables the single-arm structure to have the defect of low lifting rigid load, and the tray is only suitable for dismounting and mounting of a low-voltage-level current transformer.
Chinese patent document CN 209668655U discloses a current transformer hanger, which includes a sleeve for being mounted on a fixing rod of a current transformer, and a supporting arm connected to a side surface of the sleeve; one end of the supporting arm, which is far away from the external member, is provided with a lifting ring hole for installing a lifting ring, and the lifting appliance occupies a large space and is not suitable for being used in scenes with high stacking density of elements such as GIS devices.
Disclosure of Invention
The invention aims to solve the technical problem of providing a GIS current transformer integral dismounting device and a dismounting method, and can provide a device which has a simple structure and is convenient to operate, realizes the integral accurate and reliable hoisting, stable movement and transportation of the current transformer CT, improves the integral dismounting operation efficiency, the operation quality and the safety coefficient of the CT, and can lighten the labor intensity of operators.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the GIS current transformer integral dismounting device comprises two door-shaped trolley supports, an I-shaped steel rail is arranged between the two door-shaped trolley supports, a hand-push tackle matched with the I-shaped steel rail in an I shape is arranged on the I-shaped steel rail, a chain block is arranged below the hand-push tackle, a current transformer CT lifting appliance is detachably connected below the chain block, the current transformer CT body can be lifted and descended through the combination of the chain block and the current transformer CT lifting appliance, and the lifted current transformer CT body can be transferred by using the hand-push tackle.
The hand-push pulley structure is as follows: each I-shaped steel rail is provided with two sliding wheels matched with the I shape, each sliding wheel is composed of two idler wheels on two sides of the I shape, the lower parts of the two idler wheels are connected through bolts, the lower parts of the bolts are connected with chain blocks, an axial connection limiting plate is arranged between the sliding wheels, and the load below the sliding wheels can move along the I-shaped steel rail through the matching of the idler wheels and the I-shaped steel rail.
The CT lifting appliance structure of the current transformer comprises the following components: the current transformer CT lifting appliance is formed by combining two CT bearing plates, a groove matched with the bottom size of the current transformer CT is formed in the middle of the CT bearing plate combination, a connecting fixing plate is arranged between the two CT bearing plates, lifting bolts are arranged at two ends of each CT bearing plate, the current transformer CT lifting appliance can be detachably connected with a chain block above the current transformer CT lifting appliance through shackles and lifting bolts, and the weight of a current transformer CT body can be stably arranged on the current transformer CT lifting appliance through the groove of the CT bearing plates.
The door-shaped trolley support is provided with two assembling supports, the bottoms of the two door-shaped trolley supports are connected and fixed with the assembling supports through the transverse lacing wire plate, and the transverse lacing wire plate can enable the whole device to have better rigidity and mobility.
Two horizontal assembled cross beams and assembled diagonal draw rib plates which are arranged in a staggered mode are arranged between the two assembling supports of the door-shaped trolley support at one end, the assembled diagonal draw rib plates are arranged between the I-shaped steel rail at the end and the assembling supports, the lower end of each assembling support is provided with a supporting leg with adjustable height, and the assembled cross beams and the assembled diagonal draw rib plates strengthen the structural rigidity of the door-shaped trolley support, so that the door-shaped trolley support is unlikely to deform when the I-shaped steel rail bears the weight.
The adjustable supporting leg structure is as follows: the end part below the assembling support is provided with a welding fixing seat, the welding fixing seat is in threaded connection with a full-tooth screw rod of a supporting leg, a circular bottom plate of the supporting leg is arranged below the full-tooth screw rod of the supporting leg, and the height of one end of the supporting leg can be adjusted through a screw structure, so that the device level is adjusted.
The detachable portal crane trolley chassis is connected below the two assembling supports of the portal crane trolley support at the other end, the universal wheel is arranged below the portal crane trolley chassis, the diagonal rib plates are connected between the two assembling supports and the portal crane trolley chassis, the two assembling supports are connected through the long diagonal rib plates, the portal crane trolley chassis can bear the current transformer CT body and can be disconnected from the portal crane trolley support, and the portal crane trolley chassis and the universal wheel form a transfer trolley.
The dismounting method of the GIS current transformer integral dismounting device comprises the following dismounting steps:
the method comprises the following steps: placing a current transformer CT lifting appliance below a current transformer CT, connecting a groove of a CT bearing plate with the current transformer CT in a matching manner, then fixedly connecting the CT bearing plate by using a connecting fixing plate, pushing the device into an operation position to enable an I-shaped steel rail to be positioned above the current transformer CT, connecting fasteners by using locking devices, adjusting a height-adjustable supporting leg to adjust the I-shaped steel rail to a horizontal position, placing a hand-push pulley right above the current transformer CT, and connecting a chain block and the current transformer CT lifting appliance by using a shackle and a lifting ring bolt;
step two: synchronously operating each chain block to lift the current transformer CT body, and pushing the hand-push pulley to position the current transformer CT body above the chassis of the portal trolley after the current transformer CT body is completely separated from a breaker below;
step three: synchronously operating each chain block to lower the current transformer CT body onto a chassis of a portal crane trolley, wherein the weight of the current transformer CT body is borne by the chassis of the portal crane trolley;
step four: the connection between the current transformer CT lifting appliance and the chain block is loosened, the connecting piece between the portal type trolley support, the diagonal draw plate and the portal type trolley chassis is disassembled, the portal type trolley chassis and the universal wheels form a current transformer CT body transfer trolley, the current transformer CT can be transferred to a specified position by using the transfer trolley, and the reinstallation of the current transformer CT is implemented according to the inverse process of the current transformer CT disassembly.
Compared with the prior art, the device has the functions of integral hoisting and transferring of the current transformer CT, the current transformer CT is hoisted and then seamlessly connected and directly falls onto a current transformer CT transfer trolley, the position of the current transformer CT can be flexibly adjusted in the process of butting of the current transformer CT return mounting flanges, accurate butting of the flanges is facilitated, the device is simple, compact and stable in structure, flexible dismounting and adjustment are achieved in a narrow space between GIS equipment, obstacles such as cable boxes, electrical equipment and the like arranged at the bottom and on two sides of the GIS are avoided, the dismounting engineering quantity of the GIS and accessory equipment thereof is reduced, the operation is simple, convenient and labor-saving, the butting accuracy and the mounting quality of the current transformer CT return mounting flanges are improved, the operation efficiency is improved, and the safety risk in the process of hoisting the current transformer CT is reduced.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a right side view of the invention;
FIG. 3 is a left side view of the invention;
FIG. 4 is an enlarged view of a portion of FIG. 1 at A;
FIG. 5 is an enlarged view of a portion of FIG. 1 at B;
FIG. 6 is an enlarged view of a portion of FIG. 3 at C;
FIG. 7 is an enlarged view of a portion of FIG. 3 at D;
FIG. 8 is a top view of a current transformer CT spreader;
FIG. 9 shows a first step of the apparatus;
FIG. 10 shows a second step of the apparatus;
FIG. 11 shows a third step of the working example of the apparatus.
In the figure: the device comprises a hand-push pulley 1, an axial connection limiting plate 2, a chain block 3, a current transformer CT lifting appliance 4, a shackle 41, a lifting bolt 42, a CT bearing plate 43, a connection fixing plate 44, a groove 45, an I-steel rail 5, a portal trolley support 6, an assembly support 7, a transverse lacing plate 8, a portal trolley chassis 9, a diagonal bracing plate 10, an assembled diagonal bracing plate 11, a universal wheel 12, a height-adjustable supporting leg 13, a supporting leg full-tooth screw 131, a supporting leg circular bottom plate 132, a fixing seat 133, an assembled cross beam 14, an assembled diagonal bracing plate 15, a long diagonal bracing plate 16, a sliding wheel 17 and a roller 18.
Detailed Description
As shown in fig. 1, the GIS current transformer integral dismounting device comprises two portal trolley supports 6, an I-shaped steel rail 5 is arranged between the two portal trolley supports 6, a hand-push pulley 1 matched with the I-shaped steel rail 5 is arranged on the I-shaped steel rail 5, a chain block 3 is arranged below the hand-push pulley 1, a current transformer CT lifting appliance 4 is detachably connected below the chain block 3, the current transformer CT body can be lifted and lifted through the combination of the chain block 3 and the current transformer CT lifting appliance 4, and the lifted current transformer CT body can be transferred by using the hand-push pulley 1.
As shown in fig. 6, the hand trolley 1 has the following structure: each I-shaped steel rail 5 is provided with two sliding wheels 17 matched with the I shape, each sliding wheel 17 is composed of two idler wheels 18 on two sides of the I shape, the lower parts of the two idler wheels 18 are connected through bolts, the lower parts of the bolts are connected with the inverted chains 3, an axial connecting limiting plate 2 is arranged between the sliding wheels 17, and the load on the lower parts can move along the I-shaped steel rail through the matching of the idler wheels 18 and the I-shaped steel rail 5.
As shown in fig. 8, the structure of the current transformer CT hanger 4 is as follows: the current transformer CT lifting appliance 4 is formed by combining two CT bearing plates 43, a groove 45 matched with the size of the bottom of the current transformer CT is formed in the middle of the combination of the CT bearing plates 43, a connecting and fixing plate 44 is arranged between the two CT bearing plates 43, lifting bolts 42 are arranged at two ends of each CT bearing plate 43, the current transformer CT lifting appliance 4 can be detachably connected with a chain block 3 above through shackles 41 and the lifting bolts 42, and the weight of a current transformer CT body can be stably placed on the current transformer CT lifting appliance 4 through the groove of the CT bearing plates 43.
As shown in figures 1-3, the door-shaped trolley support 6 is provided with two assembly supports 7, the bottoms of the two door-shaped trolley supports 6 are connected and fixed with the assembly supports 7 through transverse lacing plates 8, and the transverse lacing plates 8 can enable the whole device to have better rigidity and mobility.
As shown in fig. 2, two horizontal assembled beams 14 and assembled diagonal brace plates 15 are arranged between two transition brackets 7 of the portal trolley bracket 6 at one end, an assembled diagonal brace plate 11 is arranged between the i-steel rail 5 and the assembled brackets 7 at the end, a height-adjustable supporting leg 13 is arranged at the lower end of each assembled bracket 7, and the assembled beams 14 and the assembled diagonal brace plates 15 enhance the structural rigidity of the portal trolley bracket 6, so that the portal trolley bracket 6 is not deformed when the i-steel rail 5 bears the weight.
As shown in fig. 5, the adjustable leg 13 is configured as follows: the end portion below the assembling support 7 is provided with a welding fixing seat 133, the welding fixing seat 133 is in threaded connection with the supporting leg full-tooth screw 131, a supporting leg circular bottom plate 132 is arranged below the supporting leg full-tooth screw 131, and the height of one end can be adjusted through a screw structure, so that the device level is adjusted.
As shown in fig. 1-3, a detachable portal trolley chassis 9 is connected below two assembling brackets 7 of the portal trolley bracket 6 at the other end, a universal wheel 12 is arranged below the portal trolley chassis 9, an inclined gusset plate 10 is connected between the two assembling brackets 7 and the portal trolley chassis 9, the two assembling brackets 7 are connected through a long inclined gusset plate 16, the portal trolley chassis 9 can bear heavy objects and can be disconnected from the portal trolley bracket 6, and the portal trolley chassis and the universal wheel 12 form a transfer trolley.
As shown in fig. 9 to 11, the method for disassembling and assembling the GIS current transformer overall disassembling and assembling device includes:
the method comprises the following steps: placing a current transformer CT lifting appliance 4 below a current transformer CT, connecting a groove of a CT bearing plate 43 with the current transformer CT in a matching manner, then fixedly connecting the CT bearing plate 43 by using a connecting and fixing plate 44, pushing the device into an operation position to enable an I-shaped steel rail 5 to be positioned above the current transformer CT, connecting a locking device with a fastener respectively, adjusting the I-shaped steel rail 5 to a horizontal position by using a height-adjustable supporting leg 13, placing a hand-push pulley 1 right above the current transformer CT, and connecting a chain block 3 with the current transformer CT lifting appliance 4 by using a shackle 41 and a lifting ring bolt 42;
step two: synchronously operating each chain block 3 to lift the current transformer CT body, and pushing the hand-push pulley 1 to position the current transformer CT body above the portal trolley chassis 9 after the current transformer CT body is completely separated from a breaker below;
step three: synchronously operating each chain block 3 to lower the current transformer CT body onto the portal trolley chassis 9, wherein the weight of the current transformer CT body is borne by the portal trolley chassis 9;
step four: the connection between the current transformer CT lifting appliance 4 and the chain block 3 is loosened, the connecting piece between the portal type trolley bracket 6, the diagonal brace plate 10 and the portal type trolley chassis 9 is disassembled, the portal type trolley chassis 9 and the universal wheel 12 form a current transformer CT body transfer trolley, the current transformer CT can be transferred to a specified position by using the transfer trolley, and the reinstallation of the current transformer CT is implemented according to the inverse process of the current transformer CT disassembly.

Claims (8)

  1. The GIS current transformer integral dismounting device is characterized in that: the lifting device comprises two door-shaped trolley supports (6), an I-shaped steel rail (5) is arranged between the two door-shaped trolley supports (6), a hand-push pulley (1) matched with the I-shaped steel rail (5) in an I shape is arranged on the I-shaped steel rail (5), a chain block (3) is arranged below the hand-push pulley (1), and a current transformer CT lifting appliance (4) is detachably connected below the chain block (3).
  2. 2. The GIS current transformer integral dismounting device according to claim 1, characterized in that the hand trolley (1) structure is: each I-shaped steel rail (5) is provided with two sliding wheels (17) matched with the H shape, each sliding wheel (17) is composed of two idler wheels (18) on two sides of the H shape, the lower parts of the two idler wheels (18) are connected through bolts, the lower parts of the bolts are connected with inverted chains (3), and an axial connection limiting plate (2) is arranged between the sliding wheels (17).
  3. 3. The GIS current transformer integral dismounting device according to claim 1, characterized in that the current transformer CT lifting appliance (4) is structured as follows: current transformer CT hoist (4) are formed by two CT loading boards (43) combination, the intermediate position of CT loading board (43) combination be equipped with current transformer CT bottom size assorted recess (45), be equipped with between two CT loading boards (43) and connect fixed plate (44), CT loading board (43) both ends are equipped with eyebolt (42), current transformer CT hoist (4) can be connected with chain block (3) detachably of top through break-out (41) and eyebolt (42).
  4. 4. The GIS current transformer integral dismounting device according to claim 1, characterized in that: the door-shaped trolley support (6) is provided with two assembling supports (7), and the bottoms of the two door-shaped trolley supports (6) are connected and fixed with the assembling supports (7) through transverse tie bar plates (8).
  5. 5. The GIS current transformer integral dismounting device according to claim 4, characterized in that: two horizontal assembled cross beams (14) and assembled diagonal lacing plates (15) which are arranged in a staggered mode are arranged between two assembling supports (7) of one end door type trolley support (6), an assembled diagonal lacing plate (11) is arranged between an I-shaped steel rail (5) and the assembling supports (7) at the end, and a supporting leg (13) with adjustable height is arranged at the lower end of each assembling support (7).
  6. 6. The GIS current transformer integral dismounting device according to claim 5, characterized in that the adjustable supporting leg (13) is structured as follows: the end part below the assembling support (7) is provided with a welding fixing seat (133), the welding fixing seat (133) is connected with the supporting leg full-tooth screw (131) through threads, and a supporting leg circular bottom plate (132) is arranged below the supporting leg full-tooth screw (131).
  7. 7. The GIS current transformer integral dismounting device according to claim 6, characterized in that: the lower parts of two assembling supports (7) of the door-shaped trolley support (6) at the other end are connected with a detachable door-shaped lifting vehicle chassis (9), universal wheels (12) are arranged below the door-shaped lifting vehicle chassis (9), an inclined gusset plate (10) is connected between the two assembling supports (7) and the door-shaped lifting vehicle chassis (9), and the two assembling supports (7) are connected through a long inclined gusset plate (16).
  8. 8. The method for dismounting and mounting the GIS current transformer integral dismounting and mounting device according to the claims 1-7 is characterized in that the dismounting and mounting steps are as follows:
    the method comprises the following steps: the method comprises the steps of placing a current transformer CT lifting appliance (4) below a current transformer CT, connecting a groove (45) of a CT bearing plate (43) with the current transformer CT in a matched mode, then fixedly connecting the CT bearing plate (43) through a connecting fixing plate (44), pushing the device into an operation position to enable an I-shaped steel rail (5) to be located above the current transformer CT, connecting a locking device with a fastener, adjusting a height-adjustable supporting leg (13) to adjust the I-shaped steel rail (5) to a horizontal position, placing a hand-push pulley (1) right above the current transformer CT, and connecting a chain block (3) with the current transformer CT lifting appliance (4) through a shackle (41) and a lifting bolt (42);
    step two: synchronously operating each chain block (3) to lift the current transformer CT body, and pushing the hand-push pulley (1) to position the current transformer CT body above a portal trolley chassis (9) after the current transformer CT body is completely separated from a breaker below;
    step three: synchronously operating each chain block (3) to lower the current transformer CT body onto a portal lifting vehicle chassis (9), wherein the weight of the current transformer CT body is borne by the portal lifting vehicle chassis (9);
    step four: the connection between the current transformer CT lifting appliance (4) and the chain block (3) is loosened, the door-shaped trolley support (6), the inclined pull rib plate (10) and the connecting piece between the door-shaped lifting trolley chassis (9) are disassembled, the door-shaped lifting trolley chassis (9) and the universal wheels (12) form a current transformer CT body transfer trolley, the current transformer CT can be transferred to a specified position by using the transfer trolley, and the reinstallation of the current transformer CT is implemented according to the inverse process of the CT disassembly of the current transformer.
CN202010312027.XA 2020-04-20 2020-04-20 GIS current transformer integral dismounting device and dismounting method Pending CN111392596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010312027.XA CN111392596A (en) 2020-04-20 2020-04-20 GIS current transformer integral dismounting device and dismounting method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010312027.XA CN111392596A (en) 2020-04-20 2020-04-20 GIS current transformer integral dismounting device and dismounting method

Publications (1)

Publication Number Publication Date
CN111392596A true CN111392596A (en) 2020-07-10

Family

ID=71426065

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010312027.XA Pending CN111392596A (en) 2020-04-20 2020-04-20 GIS current transformer integral dismounting device and dismounting method

Country Status (1)

Country Link
CN (1) CN111392596A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111852046A (en) * 2020-07-31 2020-10-30 温州鼎玛建筑技术有限公司 Large-span building steel structure and application method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111852046A (en) * 2020-07-31 2020-10-30 温州鼎玛建筑技术有限公司 Large-span building steel structure and application method thereof

Similar Documents

Publication Publication Date Title
US8469209B2 (en) Removal apparatus for a torque converter and a starting motor from an auxiliary compartment on a gas turbine
US9969525B2 (en) Stand for machine components
CN110182700B (en) GIS metal tank body disassembling tool
US4664270A (en) Air transportable gantry type crane
CN212050215U (en) GIS current transformer integral dismounting device
CN111392596A (en) GIS current transformer integral dismounting device and dismounting method
CN214191981U (en) Pay-off rack assembly
KR101689225B1 (en) Gas Insulated Switch-gear Installation and Removal System
CN111064101B (en) Be applied to portable gallows of door type of supplementary installation of high tension switchgear
US11545879B2 (en) Method and system for handling a rotary machine
CN106672261A (en) Disassembly equipment and disassembly method for plane transport floor
CN111146719A (en) Method for replacing power module of ultrahigh-pressure flexible direct-current converter valve in tower
US7367461B2 (en) Movable girder mounted jib
US8474633B2 (en) Methods of removing a torque converter and a starting motor from an auxiliary compartment of a gas turbine
CN102951560A (en) Lifting crane in electric power system
CN104112996B (en) Change current transformer Portable handcart and preparation method thereof
CN220098360U (en) Handling device for butt joint process of high-voltage switch cabinet
CN114803818B (en) Converter valve power module replacement device
CN220562754U (en) Transfer device for switch cabinet transportation
CN216190533U (en) Lifting appliance device for overhauling converter station
CN204917669U (en) Overhead hoist for wind generating set
CN205016899U (en) Unsettled transformer mounting bracket
CN214879707U (en) A transport tool for withstand voltage test instrument of superhigh pressure electrical equipment
CN212893514U (en) Detachable mobile hoisting device
CN208054736U (en) A kind of Transformer installation place device

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