CN109768486A - Outdoor Trusses For Transformer Substation crossbeam 10kV disconnecting switch electrification direct-connection device and method - Google Patents
Outdoor Trusses For Transformer Substation crossbeam 10kV disconnecting switch electrification direct-connection device and method Download PDFInfo
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- CN109768486A CN109768486A CN201910041017.4A CN201910041017A CN109768486A CN 109768486 A CN109768486 A CN 109768486A CN 201910041017 A CN201910041017 A CN 201910041017A CN 109768486 A CN109768486 A CN 109768486A
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Abstract
The present invention relates to Outdoor Trusses For Transformer Substation crossbeam 10kV disconnecting switch electrification direct-connection device, including operating platform and direct connection fitting, operating platform includes the insulating ladder of adjustable angle, the fixed device of insulating ladder；The anti-settling fixed device of insulating ladder is fixed on the foot of ladder of the insulating ladder of adjustable angle, the insulating ladder of adjustable angle is extension ladder, and direct connection fitting includes for being clamped the vertical shunt line fixture of the 10kV disconnecting switch of drainage thread.Outdoor Trusses For Transformer Substation crossbeam 10kV disconnecting switch electrification direct-connection method, it is combined by using power transformation intermediate potential method and power distribution live-wire gloves method, in the open air 10kV, the different current class disconnecting switch of 10kV crossbeam carries out charging vertical direct connection, realizes that disconnecting switch shunts.The livewire work mode of abandoning tradition of the present invention solves disconnecting switch contact heating problem on 10kV device context crossbeam framework.
Description
Technical field
The present invention relates to electric system livewire work, in particular to Outdoor Trusses For Transformer Substation crossbeam 10kV disconnecting switch electrification direct-connection
Device and method.
Background technique
The disconnecting switch of the different voltages that put into operation in power system transformer substation grade, is continuously increased, high pressure with supply load
Disconnecting switch heating accident is in rising trend.This is because each coupling part poor contact, product quality problem, mounting process owe
The inevitable outcome generated under the conditions of the factors such as good, operation and maintenance are improper, maintenance is not in place, peak value or overload operation, if
It handles not in time, will affect safe and reliable power supply.The disconnecting switch fever processing of existing 66~220kV of substation, has been state at present
Interior power transformation livewire work conventional project, livewire work personnel build the peace that operating platform keeps relevant voltage grade using insulating ladder
Full distance is climbed along ladder and enters setting, horizontal straight by the consummate technical ability of equipotential electrician and corresponding shunt line fixture
Connection can eliminate disconnecting switch fever hidden danger immediately, power more for enterprise and create the valuable maintenance plan time.
When existing live working tools, methods and techniques, it is compact to be applied to Anshan power supply company original rural power office 66kV
When the shunting of vertical direct connection is charged in disconnecting switch contact fever in type substation 10kV equipment place, all Work tools, method and skill
Art is all restricted, in addition can not operation, reason is State Grid Corporation of China's electric power safety working regulation power transformation part, waits electricity
Equipotential live line work must not be carried out on position operation 20kV and the power circuit and electrical equipment of following voltage class, so equipotential is grasped
Work is forbidden to implement；Though meeting safety work order relevant provision regulation using earth potential working method, former rural power office is to save state
Soil station ground resource, Substation Design at compact, every circuit interval is narrow, and especially 10kV disconnecting switch design installation squeezes
Outdoors on the crossbeam in 5.7 meters of high-altitude, phase spacing 300mm only meets service requirement, does not account for livewire work at all
Emergency maintenance, this has very big association with State Grid's design universal standard.Though can the practical feelings in scene using earth potential working method
Condition, when having bus arrester or voltage transformer on the phase framework of side, can only the side the simple process A or C contact that mutually generates heat it is vertically straight
Connection, B phase can not operation, completion task coefficient only accounts for 33% or so, and entire operation process difficulty is very big, and there are 10kV
Disconnecting switch drainage thread contact surface grinding process, clamp on amperemeter test, the tight progress of shunting direct connection line card, generation bus are alternate short
The problems such as road or single-line to ground fault accident say that ground potential should not be implemented from the person and equipment safety angle；
Medial potential working method is that human body is between grounding body and electrical body, is keeping corresponding 10kV voltage class
Except safe distance, maintenance purpose can be closely reached using insulating tool mediate contact charging equipment.Select intermediate electricity
Position working system mainly solves current setting, and the device is complicated, and the occasion with certain risk.From equipotential, ground potential, in
Between current potential three relatively from the point of view of, earth potential working method complete it is relatively difficult, forbid to implement with equipotential live line work method, intermediate potential make
Industry method is closest to complete a kind of unique method of vertical direct connection task, but on condition that must have insulation operation platform, control exhausted
The dedicated earth anchor of edge operating platform, dedicated vertical part flow arrangement and concrete operation step.Operating procedure is made by the intermediate potential of power transformation
Industry method and power distribution live-wire gloves method composition, will especially there is the vertical direct connection method of a set of matched shunt line and dress
It sets, method will actually be combined with scene, and device performance meets safety and related professional standard regulation.It is complete in above-mentioned precondition
In the case that portion has, this emergency hotline maintenance work can be carried out, otherwise even if intermediate potential is made under equal conditions
Though industry method is superior to idiostatic method and ground potential method, without the intervention of power distribution live-wire gloves method, the scope of activities of operating personnel
It needs without strictly limitation and when necessary using barrier measure, and minimum combination gap as defined in guarantee etc., the person and equipment peace
It also cannot get any guarantee, Yi Fasheng bus phase fault or single-line to ground fault accident entirely, give power network safety operation band
Carry out high risks.Disconnecting switch of the invention charges vertical direct connection method and device, is to solve the problems, such as hidden trouble of equipment and complete to hang down
Straight direct connection shunts the key of task, therefore, researches and develops a kind of vertical direct connection shunt line fixture method of 10kV disconnecting switch and dress
Set, on-line treatment Outdoor Trusses For Transformer Substation crossbeam 10kV disconnecting switch contact generate heat hidden danger when it is imperative.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of Outdoor Trusses For Transformer Substation crossbeam 10kV disconnecting switch electrification direct-connections
Device and method can eliminate disconnecting switch fever hidden danger immediately, power more for enterprise and create the valuable maintenance plan time,
Live-working safety reliability is improved, guarantees power network safety operation.
To achieve the above object, the present invention is implemented with the following technical solutions:
Outdoor Trusses For Transformer Substation crossbeam 10kV disconnecting switch electrification direct-connection device, including operating platform and direct connection fitting, operation are flat
Platform includes the insulating ladder of adjustable angle, the fixed device of insulating ladder；Insulating ladder is fixed on the foot of ladder of the insulating ladder of adjustable angle
The insulating ladder of fixed device, adjustable angle is extension ladder, and direct connection fitting includes the 10kV disconnecting switch for being clamped drainage thread
Vertical shunt line fixture.
The insulating ladder of the adjustable angle is composed of insulation double ladder and insulating telescopic ladder, and insulate double ladder
It is fixedly connected including main ladder, branch ladder and terraced head frame plate, terraced head frame plate one end with main ladder, the other end and branch ladder are hinged, terraced head frame plate
Middle part hinged insulating telescopic ladder, insulating telescopic ladder includes the fixed ladder of extension ladder, the dynamic ladder of extension ladder and pulley blocks, the fixed ladder of extension ladder and
It is connected between the dynamic ladder of extension ladder by lifting pulley frame, pulley blocks include top sheave component and downslide wheel assembly, top sheave component
It is fixed in the upper beam of the fixed ladder of extension ladder, downslide wheel assembly is fixed on extension ladder and moves in the lower beam of ladder, top sheave group
Traction rope is wound between part and downslide wheel assembly, is equipped with sliding positioning device, extension ladder between terraced head frame plate and the dynamic ladder of extension ladder
Extension ladder angular adjustment apparatus is equipped between the lower part of fixed ladder and main ladder.
The sliding positioning device includes pin boss, pulls pin, block of pulling pin, pin pulling head, and pin boss is bolted on ladder
On head frame plate, terraced head frame plate is equipped with location hole, and the dynamic ladder of extension ladder is equipped with multiple consistent pins of location hole with terraced head frame plate
Hole, pin boss are equipped with long flat hole, pull pin and are set between the location hole of terraced head frame plate and the dynamic ladder of extension ladder by the flat hole of length, are pulled pin
Front end is equipped with block of pulling pin, and the tail end pulled pin is equipped with the outside that pin pulling head is exposed at pin boss.
The lifting pulley frame includes the identical upper lifting pulley yoke of structure and lower lifting pulley frame, and structure includes master
Frame, main frame is divided into closing frame and pulley frame, pulley frame two sides are respectively equipped with idler wheel；Inside the closing frame of upper lifting pulley yoke
Determine ladder with extension ladder to be fixedly connected, the idler wheel and the dynamic ladder of extension ladder of the pulley frame of upper lifting pulley yoke are rolled and connected, and lower lifting is slided
It moves ladder with extension ladder inside the closing frame of wheel carrier to be fixedly connected, the fixed ladder rolling of the idler wheel and extension ladder of the pulley frame of lower lifting pulley frame
Dynamic connection.
The extension ladder angular adjustment apparatus, including cover for seat, loop bar, adjustment screw, location nut, cover for seat are fixedly connected
On the crossbeam of main terraced bottom, loop bar is set in inside cover for seat, and annular groove is equipped between loop bar and cover for seat, if being equipped in sliding slot
Dry ball, loop bar front end are fixedly connected with adjustment screw, and the front end of adjustment screw is determined on terraced crossbeam with extension ladder is fixed on
Location nut is spirally connected, and the tail end of loop bar is square base.
The top sheave component is two pulleys arranged side by side, and downslide wheel assembly is 1 pulley.
The insulating ladder of adjustable angle further includes rotation drive device and set knock-off joint for driving loop bar to rotate.
The anti-settling fixed device of the insulating ladder, including mud mat, foot of ladder fixing clamp, drawing screw rod, fixedly pricker are folded,
Two folding mud mats are hinged by articulation piece, and folding mud mat includes bottom plate and upper plate, and bottom plate and upper plate are hinged by pivot pin,
Upper plate is equipped with strip long hole, and the foot of ladder fixing clamp is set in strip long hole, for clamping insulating ladder foot of ladder, the one of bottom plate
Edge is equipped with draw-bar seat, and the drawing screw rod passes through upper plate and connect with draw-bar seat, and the drawing screw rod on the outside of upper plate, which is equipped with, to be drawn
Stem nut, the edge of bottom plate is through fixedly pricker.
The foot of ladder fixing clamp includes T shape adjustment screw, foot of ladder clamping plate one, foot of ladder clamping plate two, foot of ladder clamping plate one and ladder
It is bolted between foot clamping plate two and T shape adjustment screw, T shape adjustment screw is equipped with the adjustment for being located at upper plate two sides
Nut.
The draw-bar seat includes otic placode, rod set, and otic placode is fixed on bottom plate, and rod set is hinged with otic placode.
The articulation piece include win in succession, articulated shaft, win in succession and connect respectively with the bottom plate of two sides, articulated shaft and won in succession hinge
It connects.
The vertical shunt line fixture of the 10kV disconnecting switch, including wire clip body, conductive slider, sliding block screw rod, operation
Knock-off joint, soft copper wire terminal, annealed copper wire, connector jackscrew, wire clip body include the pedestal and branch gripping arm of integral structure, are set on pedestal
There is sliding block screw rod, sliding block screw tip is flexibly connected conductive slider, and conductive slider is slided up and down by the adjusting of sliding block screw rod, conductive
Sliding block is equipped with guide post, and branch gripping arm side wall is equipped with slideway, and in conductive slider sliding process, guide post is sliding in slideway always
Dynamic, the side of pedestal is set there are two the threaded hole penetrated through, and threaded hole is interior to connect soft copper wire terminal, soft copper wire terminal and annealed copper wire pressure
It connects, the other side of pedestal is bolted operation knock-off joint.
At the top of the branch gripping arm and sliding block screw rod lower end is equipped with lantern ring.
The soft copper wire terminal is fastened by connector jackscrew.
Outdoor Trusses For Transformer Substation crossbeam 10kV disconnecting switch electrification direct-connection method, by using power transformation intermediate potential method and distribution band
Electric Working gloves method combines, and in the open air 10kV, the different current class disconnecting switch of 10kV crossbeam carries out charging vertical direct connection,
Realize that disconnecting switch shunts, specific steps are as follows:
1) in-site measurement disconnecting switch is to drainage thread between bus and disconnecting switch to the distance between drainage thread between breaker,
Determine needed for shunt line length, scene using annealed copper wire make shunt line, by the both ends of annealed copper wire respectively with 10kV disconnecting switch
The soft copper wire terminal pincers pressure connection composition of vertical shunt line fixture shunts fixture；
2) insulating ladder of adjustable angle is lifted into the standing beneath to the disconnecting switch of circuit interval fever phase in ground,
Each insulation tricing line, transmission rope are fastened on insulating ladder and hang up properly operating stick, the required height of drawing traction rope adjustment insulating telescopic ladder
Degree, is positioned by sliding positioning device, is clamped set knock-off joint using rotation drive device, loop bar adaptor cup jointing is in the side of loop bar tail end
On shape seat, start rotation drive device, adjust the required angle of insulating telescopic ladder, is done in insulation four leg footing of double ladder with ground
Better line mark；
3) dotted line mark is carried out according to foot of ladder and ground, puts the fixed device of insulating ladder, insertion is solid on folding mud mat
Surely it pricker and hammers into underground and fixes, the foot of ladder of insulating ladder and the fixed device installation of insulating ladder are fixed；
4) operation electrician wears a full set of electricity insulation clothes ascending stair of matching to setting lower section, hangs up properly safety belt, coaster is hung
On the top bus for disconnecting switch of generating heat, the insulating cord mounting of coaster shunts fixture, carries out shunting fixture promotion and prepares；
5) by the oxidation of disconnecting switch to drainage thread between bus and disconnecting switch to the card contact between breaker on drainage thread
Layer grinding process；
6) ladder is upper and terrestrial operation electrician cooperation will shunt fixture and be promoted, and upper fixture is connected to disconnecting switch between bus
On drainage thread, disconnecting switch is connected to between breaker on drainage thread with lower fixture；
7) electrician's 10kV high pressure clamp on amperemeter is operated, instrument boot section is pushed into drainage thread and shunt line, instrument respectively
After table data store, drainage thread and shunt line are exited in instrument boot section respectively, checks instrument storing data；
8) after confirmation instrument storing data is qualified, the auxiliary tool that drawing shunts fixture is removed；It operates electrician and opens safety
Band, along backtracking；
9) insulating ladder of adjustable angle is withdrawn, fixedly pricker, finishing tool, installation terminate for extraction.
Compared with prior art, the beneficial effects of the present invention are:
1) medial potential working method and with Electric hand protector working system be human body be between grounding body and electrical body, keep phase
Except the safe distance for the voltage class answered, maintenance mesh can be closely reached using insulating tool mediate contact charging equipment
's.It selects medial potential working method and mainly solves setting with Electric hand protector working system the device is complicated, earth potential working method is completed
It is relatively difficult.Overcome the deficiencies in the prior art, the livewire work mode of abandoning tradition solve on 10kV device context crossbeam framework
Disconnecting switch contact heating problem.
2) matched shunt line can be made according to actual track load current, six hanging point length of ABC three-phase, point
Streamline section and item number increase or decrease quantity with measured current, shunt line can by this area summer, winter wire relaxes and on
Amplitude is raised, the summer has been reserved, the elasticity that winter conducting wire expands with heat and contract with cold, shunt line is prevented to be pulled off, caused for emergency processing equipment
Accident and there is the generation of accident, after the vertical shunt line clamp device of 10kV disconnecting switch is fixed well, be not necessarily to substation's value
Class personnel irregularly make an inspection tour and monitor, and can safely and reliably run to maintenance plan arrival, and device is removed in power failure, and installation is torn open
It unloads conveniently, swift to operate, performance safety is reliable.
3) present invention is not limited by copper aluminum conductor, and the 70~240mm copper aluminum conductor for being able to satisfy the connection of 10kV disconnecting switch is cut
Face uses.It is not subject to seasonal restrictions, is suitable for various types place, be able to satisfy a kind of exhausted in 10kV equipment live emergency first-aid repair scene
Requirement of the edge ladder to fastness.On the other hand, terraced tail manually controls fixation without operating personnel, can reliably will be assembled exhausted
Edge ladder rises and lands and carry out angle adjustment, easy for assemble or unload, swift to operate.
4) meet the vertical direct connection requirement of 66kV Outdoor Trusses For Transformer Substation 10kV device context disconnecting switch contact fever, performance symbol
Safety and related professional standard regulation are closed, it is practical, it is easy for assemble or unload, it is swift to operate.
Detailed description of the invention
Fig. 1 is operating platform structural schematic diagram of the invention.
Fig. 2 is direct connection hardware fitting structure schematic diagram of the invention.
Fig. 3 is the structural schematic diagram of the insulating ladder of adjustable angle.
Fig. 4 is the structural schematic diagram of edge extension ladder.
Fig. 5 is the structural side view of edge extension ladder.
Fig. 6 is the structural schematic diagram for sliding positioning device.
Fig. 7 is the side view for sliding positioning device.
Fig. 8 is the structural schematic diagram of lifting pulley frame.
Fig. 9 is the structural schematic diagram of extension ladder angular adjustment apparatus.
Figure 10 is the partial enlarged view of Fig. 9.
Figure 11 is the structural schematic diagram for covering knock-off joint.
Figure 12 is the structural schematic diagram of the fixed device of insulating ladder.
Figure 13 is the structural side view of the fixed device of insulating ladder.
Figure 14 is the structure rearview of the fixed device of insulating ladder.
Figure 15 is the structure chart of foot of ladder fixing clamp.
Figure 16 is the structure chart of draw-bar seat.
Figure 17 is the structural schematic diagram of the vertical shunt line fixture of 10kV disconnecting switch.
Figure 18 is the structural side view of the vertical shunt line fixture of 10kV disconnecting switch.
In figure: the fixed device 2 of the insulating ladder 1 of adjustable angle, insulating ladder, the vertical shunt line fixture 3 of 10kV disconnecting switch,
Disconnecting switch is to 4 disconnecting switch of drainage thread between bus to drainage thread 5 between breaker；
Insulate double ladder 11, insulating telescopic ladder 12, main terraced 13, branch ladder 14, terraced head frame plate 15, the fixed ladder 16 of extension ladder, flexible
Ladder dynamic ladder 17, top sheave component 19, downslide wheel assembly 110, traction rope 111, sliding positioning device 112, is stretched lifting pulley frame 18
Contract terraced angular adjustment apparatus 113, pin boss 114,115, block 116 of pulling pin, limit plate 117, T shape limit hole 118, main frame 119,
Close frame 120, pulley frame 121, two idler wheels 122, cover for seat 123, loop bar 124, adjustment screw 125, location nut 126, sliding slot
127, ball 128, ball inlet 129, square base 130, set knock-off joint 131, loop bar connector rod 132, loop bar fitting sleeve 133.
Fold mud mat 21, foot of ladder fixing clamp 22, draw-bar seat 23, drawing screw rod 24, fixedly pricker 25, articulation piece 26, bottom
Plate 27, upper plate 28, strip long hole 29, pull-rod nut 210, T shape adjustment screw 211, foot of ladder clamping plate 1, foot of ladder clamping plate two
213, otic placode 214, rod set 215,216, articulated shaft 217 of winning in succession.
Wire clip body 31, conductive slider 32, sliding block screw rod 33, operation knock-off joint 34, soft copper wire terminal 35, annealed copper wire 36,
Connector jackscrew 37, pedestal 38, branch gripping arm 39, guide post 310, slideway 311, threaded hole 312, operation knock-off joint 313, lantern ring
314。
Specific embodiment
A specific embodiment of the invention is further illustrated with reference to the accompanying drawing:
Such as Fig. 1-Figure 18, Outdoor Trusses For Transformer Substation crossbeam 10kV disconnecting switch electrification direct-connection device, including operating platform and direct connection
Fitting, operating platform include the insulating ladder 1 of adjustable angle, the fixed device 2 of insulating ladder；The ladder of the insulating ladder 1 of adjustable angle
The fixed device 2 of insulating ladder is fixed on foot, the insulating ladder 2 of adjustable angle is extension ladder, and direct connection fitting includes for being clamped drainage
The vertical shunt line fixture 3 of the 10kV disconnecting switch of line.
The insulating ladder of adjustable angle, the whole ladder of insulating ladder are composed of insulation double ladder 11 and insulating telescopic ladder 12, absolutely
Edge double ladder 11 includes main terraced 13, branch ladder 14 and terraced head frame plate 15, and terraced 15 one end of head frame plate is fixedly connected with main terraced 13, the other end
Hinged, the hinged insulating telescopic ladder 2 in the middle part of terraced head frame plate 15 with branch ladder 14.
Insulating telescopic ladder 12 moves ladder 17 and pulley blocks including the fixed ladder 16 of extension ladder, extension ladder, and extension ladder determines ladder 16 and stretches
It is connected between the dynamic ladder 17 of ladder by lifting pulley frame 18, lifting pulley frame 18 includes the identical upper lifting pulley yoke of structure and lower liter
Pulley yoke drops, and structure includes main frame 119, and main frame 119 divides for closing frame 120 and pulley frame 121,121 two sides of pulley frame
It is respectively equipped with idler wheel 122；120 inside of closing frame of upper lifting pulley yoke is fixedly connected with the fixed ladder 16 of extension ladder, upper lifting pulley
The idler wheel 122 of the pulley frame 121 of frame and the dynamic ladder 17 of extension ladder are rolled and are connected, 120 inside of closing frame of lower lifting pulley frame with stretch
The dynamic ladder 17 of contracting ladder is fixedly connected, and the fixed ladder of the idler wheel 122 and extension ladder of the pulley frame 121 of lower lifting pulley frame, which rolls, to be connected.
Pulley blocks include top sheave component 19 and downslide wheel assembly 110, and top sheave component 19 is fixed on the fixed ladder 16 of extension ladder
Upper beam on, downslide wheel assembly 110 is fixed in the lower beam of the dynamic ladder 17 of extension ladder, top sheave component 19 be two simultaneously
The pulley of column, downslide wheel assembly 110 are 1 pulley.Traction rope 111 is wound between top sheave component 19 and downslide wheel assembly 110,
One end rope end of traction rope 111 is fixed on the crossbeam at 110 place of downslide wheel assembly, and traction rope 111 is up around top sheave group
A pulley in part 19, then down around the pulley of downslide wheel assembly 110, then up around another in top sheave component 19
One pulley is sagging to be used as traction end.The dynamic ladder 17 of extension ladder is drawn by traction rope 111, reaches desired height.Terraced head frame plate 15
The height and position that sliding positioning device 112 determines the dynamic ladder 17 of extension ladder is equipped between the dynamic ladder 17 of extension ladder.
The sliding positioning device 112 includes pin boss 114, pull pin 115, block 117 of pulling pin, pin pulling head 116, pin boss
114 are bolted on terraced head frame plate 15, and terraced head frame plate 15 is equipped with location hole, the dynamic ladder 17 of extension ladder be equipped with it is multiple with
The consistent pin hole of location hole of terraced head frame plate, pin boss 114 are equipped with long flat hole 118, and pull pin 115 is set on by long flat hole 118
Between the location hole of the dynamic ladder 17 of terraced head frame plate 15 and extension ladder, 115 front end of pulling pin is equipped with block 117 of pulling pin, pull pin 115 tail end
The outside of pin boss is exposed at equipped with pin pulling head 116, when the dynamic ladder 17 of extension ladder positions, pulling pin 115 is plugged into the dynamic ladder 17 of extension ladder
Inside, 116 inner surface of pin pulling head is resisted against the outer surface of pin boss 114, and when the dynamic ladder 17 of extension ladder is promoted or fallen, extraction is pulled out
Pin 115.
Extension ladder angular adjustment apparatus 113 is equipped between the lower part and main terraced 13 of the fixed ladder 16 of extension ladder.Extension ladder angle tune
Engagement positions 113, including cover for seat 123, loop bar 124, adjustment screw 125, location nut 126, cover for seat 123 are fixedly connected on main terraced 3
On the crossbeam of bottom, loop bar 124 is set in inside cover for seat 123, and annular groove 127 is equipped between loop bar 124 and cover for seat 123, sliding
Several balls 128 are equipped in slot 127, cover for seat 23 is equipped with ball inlet 129, and 124 front end of loop bar and adjustment screw 125 are fixed
Connection, the front end of adjustment screw 125 are spirally connected with the location nut 126 being fixed on fixed terraced 16 crossbeams of extension ladder, the tail of loop bar 124
End is square base 130.
The insulating ladder of adjustable angle further includes rotation drive device and set knock-off joint 131 for driving loop bar to rotate.
Covering knock-off joint 131 includes loop bar connector rod 132 and loop bar fitting sleeve 133, and loop bar fitting sleeve 133 and the tail end of loop bar 124 are rectangular
Seat 130 matches.Rotation drive device includes electric hand drill.Electric hand drill retaining sleeve knock-off joint 131 is socketed in the tail end of loop bar 124,
Start electric hand drill, driving loop bar 124 rotates, to adjust the angle of insulating telescopic ladder 12.The adjusting angle of insulating telescopic ladder 12
It is 0-50 °.
The anti-settling fixed device of insulating ladder, including fold mud mat 21, foot of ladder fixing clamp 22, draw-bar seat 23, drawing screw rod 24,
Fixedly pricker 25, two folding mud mats 21 are hinged by articulation piece 26, and folding mud mat 21 includes bottom plate 27 and upper plate 28, bottom
Plate 27 and upper plate 28 are hinged by pivot pin, and upper plate 28 is equipped with strip long hole 29, and it is long that the foot of ladder fixing clamp 22 is set on strip
In hole 29, for clamping insulating ladder foot of ladder, an edge of bottom plate 27 is equipped with draw-bar seat 23, and the drawing screw rod 24 passes through upper plate
28 connect with draw-bar seat 23, and the drawing screw rod 24 in 28 outside of upper plate is equipped with pull-rod nut 210, and the edge of bottom plate 27 is through fixation
Ground pricker 25.
The foot of ladder fixing clamp 22 includes T shape adjustment screw 211, foot of ladder clamping plate 1, foot of ladder clamping plate 2 213, foot of ladder
It is bolted between clamping plate 1 and foot of ladder clamping plate 2 213 and T shape adjustment screw 211, T shape adjustment screw 211 is equipped with
It is located at the adjusting nut of 28 two sides of upper plate.
The draw-bar seat 23 includes otic placode 214, rod set 215, and otic placode 214 is fixed on bottom plate 27, rod set 215 and otic placode
214 is hinged.
The articulation piece 26 includes winning in succession 216, articulated shaft 217, and win in succession 216 connect with the bottom plate 27 of two sides respectively, hinge
It spindle 217 and wins in succession 216 hinged.
The vertical shunt line fixture of 10kV disconnecting switch, including wire clip body 31, conductive slider 32, sliding block screw rod 33, operation
Knock-off joint 34, soft copper wire terminal 35, annealed copper wire 36, connector jackscrew 37, wire clip body 31 include the pedestal 38 and branch of integral structure
Gripping arm 39, pedestal 38 are equipped with sliding block screw rod 33, and 33 top of sliding block screw rod is flexibly connected conductive slider 32, and conductive slider passes through cunning
The adjusting of block screw rod slides up and down, and conductive slider 32 is equipped with guide post 310, and 39 side wall of branch gripping arm is equipped with slideway 311, and conduction is sliding
In 32 sliding process of block, guide post 310 is slided in slideway 311 always, the side of pedestal 38 set there are two penetrate through threaded hole
312, threaded hole 312 is interior to connect soft copper wire terminal 35, and soft copper wire terminal 35 is crimped with annealed copper wire 36, and soft copper wire terminal 35 is by connector
Jackscrew 37 fastens.The other side of pedestal 38 is bolted operation knock-off joint 313.It is equipped between operation knock-off joint 34 and vertical direction
5-20 ° of angle, connecting column 316 are equipped with positioning pin 317.The auxiliary clamping operation of 34 attended operation bar of knock-off joint is operated, is had
Certain angle guarantees the safety of operation.
39 top of branch gripping arm and 33 lower end of sliding block screw rod are equipped with lantern ring 314.The lantern ring 314 at 39 top of branch gripping arm
For mounting bus when operation, the lantern ring 314 of 33 lower end of sliding block screw rod is used to fasten conductive slider 32 using handle tool.
Outdoor Trusses For Transformer Substation crossbeam 10kV disconnecting switch electrification direct-connection method, by using power transformation intermediate potential method and distribution band
Electric Working gloves method combines, and in the open air 10kV, the different current class disconnecting switch of 10kV crossbeam carries out charging vertical direct connection,
Realize that disconnecting switch shunts, specific steps are as follows:
1) before direct connection must checking loop compartment name and disconnecting switch phase, the determining emergency issued with production scheduling
Repairing instruction is consistent, in-site measurement disconnecting switch to drainage thread between bus and disconnecting switch between breaker between drainage thread away from
From, line length is shunted needed for determining, and determine that shunt cross-sectional area and item number matches with season load current, it is live using soft
Copper wire make shunt line, by the both ends of annealed copper wire respectively shunt line fixture vertical with 10kV disconnecting switch soft copper wire terminal clamp pressure
Connection composition shunts fixture；
2) insulation double ladder and insulating telescopic ladder are assembled on ground, whole after assembling is integrated insulating ladder, in ladder
Head and terraced waist have hung tricing line, electrodeless rope sling, coaster and transmission rope respectively, insulating ladder lift to circuit interval fever phase every
The standing beneath of pass is left in ground, the insulating telescopic ladder height promoted among insulation double ladder is adjusted with pulley blocks, uses flashlight
Drill chuck female connector knock-off joint, loop bar adaptor cup jointing start electric hand drill on the square base of loop bar tail end, adjust the institute of insulating telescopic ladder
Angle is needed, insulating telescopic ladder tilt angle is made to meet job platform requirement, it is locked fixing the tricing line on terraced head and terraced waist,
Work responsible person visually inspects operation electrician's lower channel and whether operating space meets the vertical direct connection operation of electrification in relation to requiring；
3) after work responsible person determines that insulating ladder is met the requirements, ground electrician is on insulation four leg footing of double ladder and ground
Dotted line mark is carried out, the tricing line of whole ladder is opened and is moved to neighbouring appropriate location, and is helped by ground electrician special messenger, is prevented
It only falls terraced.
4) ground electrician opens the fixed device of two insulating ladders, carries out dotted line mark according to foot of ladder and ground, puts respectively
Be placed on specified position, plug fixedly pricker on folding mud mat, with hammer top, until by fixed pin all
Hammer into underground.
5) it links together moving insulating ladder to the foot of ladder on the fixed device of the insulating ladder that fixes with insulating ladder, is used in combination
Positioning bolt is fixed.
6) it when insulating ladder foot of ladder needs to finely tune, slides on upper plate strip hole inside and outside on T-type adjustment screw and screw thread
0~10mm vibration up and down can be completed in mud mat in nut, four foot of insulating ladder.T-type adjustment screw and foot of ladder fixing clamp can
Around bolt in 0~180 ° of range intrinsic deflection, meet 0~30 ° of adjustment in real work.
7) it is worth noting that: hammer into fixedly pricker points short, medium and long 3 kinds of underground, be separately adapted to Various Seasonal and not
With ground, using size matching socket joint hole depth be no less than 230mm (short, hard), 290mm (moderate, not loose not hard),
400mm (long, soft).
8) when ground is harder, with the top of the short fixedly pricker of hammer, until fixed pin is all hammered into underground.
9) as ground is not hard and not soft, with the top of the medium fixedly pricker of hammer, until by fixed pin whole
Hammer into underground.
10) it is pavement brick paving on such as ground, after should marking, scratches except corresponding pavement brick and according to ground pine, hard journey
Degree determines long hammer drill, the top of the fixedly pricker of the fixed length selected by hammer, until fixed pin is all hammered into underground.
11) it is all connected firmly with ground to corresponding foot of ladder and the tricing line fixing lock that insulate can after death carry out electrification work
The operation of industry personnel's ascending stair, special emphasis is that tying-up safety rope prevents extension ladder angle on the foot of ladder of double ladder and insulating telescopic ladder
There is safety accident in degree adjustment device deformation.
12) operation electrician wear it is a full set of with electricity insulation clothes (including；Clothing, trousers, boots, cap, gloves) it climbs along insulating ladder, upper
Prevent that violence scratches during lower insulating ladder, damage insulation clothing, on the way in double ladder and extension ladder intersection, terraced body two sides ladder
The sliding positioning device of head frame plate pull pin it is locked after, step on to setting, hang up properly safety belt, take over ground electrician biography with hand
It passes the insulation rod come and insulating cord passes through the coaster of pulley, insulation rod is smoothed out with the fingers along together with insulating cord, coaster is chosen
After hanging on the top bus of fever disconnecting switch, insulation rod is transmitted to ground immediately by operation electrician.
13) two ground electricians are to prevent screw oxidation from should take smearing vaseline shunting fixture, shunt number of lines and
The season load current that section can be recorded according to substation determines.
14) after two ground electricians complete installation shunting fixture, maximum is adjusted separately two fixtures are open, in opening
Vaseline is smeared in portion, the long insulation handrail of installation on upper fixture operation knock-off joint.It is installed on lower fixture operation knock-off joint short absolutely
Edge handrail determines that operation knock-off joint is fixed well with handrail.
15) ground electrician insulating cord one end for hanging over coaster above bus, binds on upper fixture lantern ring, another
End is controlled by a ground electrician, is passing through lower fixture lantern ring with an insulating cord, it is good together that two rope ends are smoothed out with the fingers, and carries out shunt line promotion
Control prepares.
16) ground electrician insulating cord one end for hanging over coaster above bus, binds on upper fixture lantern ring, and insulate tail of rope
End, first is that insulating cord tail end stays in fixture lantern ring adjacent side, can be grasped according to field condition there are three types of rest mode using insulation
Make bar in the air or ground is unbuttoned, second is that insulating cord tail end stays in operation electrician's adjacent side, operation electrician is pulled with hand and is unbuttoned, second is that
On insulating cord tail end stand-down tarpaulin, ground electrician is pulled with hand and is unbuttoned, and for convenience of fast, which uses second
Kind.
17) while ground electrician prepares the work of vertical direct connection by step, a ground electrician prepares polishing insulating bar
Operation electrician is passed to, the removing oxide layer at the drainage thread upper and lower end for mounting shunt line guarantees that fixture contact is well and secured
Reliably.
18) using polishing insulating bar when, distance of polishing on demand, polishing upper end drainage thread use in bar, lower end quarter butt, length
Bar is integrated as stock.
19) when operator is during polishing, and insulating bar bistrique and drainage thread angle are not inconsistent, polishing bar should be adjusted
Bistrique angle, and lock and polishing can be completed, so that fixture hitching position is met the requirement of vertical direct connection.
20) after promoting instruction issuing, one controls the ground electrician of upper fixture lantern ring insulating cord, at the uniform velocity operates, a control
Elasticity cooperates the ground electrician for making lower fixture lantern ring insulating cord therewith, after the hand-held insulation rod of another name ground electrician is done at any time
The standby cooperation propping up, draw, dragging, pushing up, keeping off causes ground connection or short circuit to prevent swinging in shunt line lifting process.
21) when the upper end fixture of promotion opening is neighbouring at drainage thread side, operator's both hands catch fixture upper end exhausted
Edge helps bar, hangs up properly at the removing oxide layer for alignment drainage thread that fixture is open, and is catching the insulation of fixture lower end to help in both hands
Bar is open fixture at the removing oxide layer for being directed at drainage thread and hangs up properly.
22) shunt line fixture fastens insulating bar in ground electrician's transmitting, and operator's both hands are caught and use fastening exhausted
The sliding block screw rod of the upper and lower fixture of edge rod locking.
23) operator fixture is open contact with drainage thread it is solid and reliable after, will fastening insulating bar, insulation support bar biography
It passs in ground.
24) it is worth noting that, the elasticity of vertical direct connection shunt line overall length up and down, has to according to unit defect elimination
Plan, seasonal conditions determine that, in a short time with spring, summer, autumn processing, the elasticity of overall length is dragged tightly, but winter must
Remaining must be remained with, prevents shunt line and disconnecting switch from dragging disconnected, leads to phase fault and single-phase earthing.
25) operator takes over ground electrician and transmits the dedicated 10kV high pressure clamp on amperemeter to come up, opens insulating bar and connects
Head only retains 10kV × 1 meter × 5 sections first segment, remains section, electrician controls by ground, and operator holds insulating bar handle
Instrument boot section is pushed into drainage thread and shunt line respectively, waits for a moment, and instrument finishes data storage, distinguishes instrument is guided
Drainage thread and shunt line are not exited, and whether the comparison of reading instrument storing data is qualified, if unqualified should search relevant issues, in time
It solves, qualified then recovery operation bar joint number is removed in ground by ground electrician, is placed in kit bag.
26) operator pulls upper fixture lantern ring with hand and is reserved in neighbouring insulating cord, unlocks fixture lantern ring insulating cord
Button, during which ground electrician cooperation drag it is next slowly pulling, whole insulating cord from upper fixture lantern ring to bus pulley to ground
On the tarpaulin of face.If insulating cord fall in the air in rope end suspension or winding disconnecting switch up and down drainage thread when, it is hard to forbid firmly to give birth to drawing
It drags, insulating bar cooperation should be taken to handle.
27) operator takes over the insulation rod of ground transmitting, chooses the coaster on Down Highway, glide insulating bar in both hands
It is transmitted to ground electrician, opens seat belt hanger, along backtracking, on the way in double ladder and extension ladder intersection, terraced body two
The lock pin of pulling pin of the sliding positioning device of side ladder head frame plate reaches ground after pulling out.
28) insulating telescopic ladder is dropped meeting original position by ground electrician, is opened all insulation tricing lines in ground and is simultaneously controlled, two
Insulating ladder fixes device disassembling bolts, and according to operation sequence, insulating ladder was fallen on the tarpaulin of ground, readjusting operations area Work tool
After entrucking, line up to withdraw from 10kV equipment operation scene.
Described above is only basic principle of the invention, is not intended to limit the invention in any way, all right according to the present invention
It carries out equivalent variations and modification, within the scope of the art of this patent protection scheme.
Claims (10)
1. Outdoor Trusses For Transformer Substation crossbeam 10kV disconnecting switch electrification direct-connection device, including operating platform and direct connection fitting, operating platform
The fixed device of insulating ladder, insulating ladder including adjustable angle；It is solid that insulating ladder is fixed on the foot of ladder of the insulating ladder of adjustable angle
Determine device, the insulating ladder of adjustable angle is extension ladder, and direct connection fitting includes hanging down for being clamped the 10kV disconnecting switch of drainage thread
Straight shunt line fixture.
2. the insulating ladder of adjustable angle described in is composed of insulation double ladder and insulating telescopic ladder, and insulate double ladder packet
It includes main ladder, branch ladder and terraced head frame plate, terraced head frame plate one end to be fixedly connected with main ladder, the other end and branch ladder are hinged, terraced head frame plate
The hinged insulating telescopic ladder in middle part, insulating telescopic ladder include that extension ladder determines the dynamic ladder of ladder, extension ladder and pulley blocks, and extension ladder is fixed terraced and stretches
It is connected between the dynamic ladder of contracting ladder by lifting pulley frame, pulley blocks include top sheave component and downslide wheel assembly, and top sheave component is solid
It is scheduled in the upper beam of the fixed ladder of extension ladder, downslide wheel assembly is fixed on extension ladder and moves in the lower beam of ladder, top sheave component
Traction rope is wound between downslide wheel assembly, is equipped with sliding positioning device between terraced head frame plate and the dynamic ladder of extension ladder, extension ladder is fixed
Extension ladder angular adjustment apparatus is equipped between the lower part of ladder and main ladder.
3. sliding positioning device described in includes pin boss, pulls pin, block of pulling pin, pin pulling head, and pin boss is bolted on terraced head
On frame plate, terraced head frame plate is equipped with location hole, and the dynamic ladder of extension ladder is equipped with multiple consistent pin holes of location hole with terraced head frame plate,
Pin boss is equipped with long flat hole, pulls pin and is set between the location hole of terraced head frame plate and the dynamic ladder of extension ladder by the flat hole of length, before pulling pin
End is equipped with block of pulling pin, and the tail end pulled pin is equipped with the outside that pin pulling head is exposed at pin boss.
4. lifting pulley frame described in includes the identical upper lifting pulley yoke of structure and lower lifting pulley frame, structure include main frame
Frame, main frame is divided into closing frame and pulley frame, pulley frame two sides are respectively equipped with idler wheel；Inside the closing frame of upper lifting pulley yoke with
Extension ladder is determined ladder and is fixedly connected, and the idler wheel and the dynamic ladder of extension ladder of the pulley frame of upper lifting pulley yoke are rolled and connected, lower lifting pulley
It moves ladder with extension ladder inside the closing frame of frame to be fixedly connected, the fixed ladder of the idler wheel and extension ladder of the pulley frame of lower lifting pulley frame rolls
Connection.
5. extension ladder angular adjustment apparatus described in, including cover for seat, loop bar, adjustment screw, location nut, cover for seat are fixedly connected on
On the crossbeam of main ladder bottom, loop bar is set in inside cover for seat, and annular groove is equipped between loop bar and cover for seat, is equipped in sliding slot several
A ball, loop bar front end are fixedly connected with adjustment screw, and the front end of adjustment screw determines to determine on terraced crossbeam with extension ladder is fixed on
Position nut is spirally connected, and the tail end of loop bar is square base.
6. the insulating ladder of adjustable angle further includes rotation drive device and set knock-off joint for driving loop bar to rotate.
The anti-settling fixed device of insulating ladder described in 7., including mud mat, foot of ladder fixing clamp, drawing screw rod, fixedly pricker are folded, two
A folding mud mat is hinged by articulation piece, and folding mud mat includes bottom plate and upper plate, and bottom plate and upper plate are hinged by pivot pin, on
Plate is equipped with strip long hole, and the foot of ladder fixing clamp is set in strip long hole, for clamping insulating ladder foot of ladder, one side of bottom plate
Draw-bar seat is equipped at angle, the drawing screw rod passes through upper plate and connect with draw-bar seat, and the drawing screw rod on the outside of upper plate is equipped with pull rod
Nut, the edge of bottom plate is through fixedly pricker.
8. foot of ladder fixing clamp described in includes T shape adjustment screw, foot of ladder clamping plate one, foot of ladder clamping plate two, foot of ladder clamping plate one and foot of ladder
It is bolted between clamping plate two and T shape adjustment screw, T shape adjustment screw is equipped with the adjustment spiral shell for being located at upper plate two sides
It is female.
The vertical shunt line fixture of 10kV disconnecting switch described in 9., including wire clip body, conductive slider, sliding block screw rod, operating stick
Connector, soft copper wire terminal, annealed copper wire, connector jackscrew, wire clip body include that the pedestal of integral structure and branch gripping arm, pedestal are equipped with
Sliding block screw rod, sliding block screw tip are flexibly connected conductive slider, and conductive slider is slided up and down by the adjusting of sliding block screw rod, and conduction is sliding
Block is equipped with guide post, and branch gripping arm side wall is equipped with slideway, and in conductive slider sliding process, guide post is sliding in slideway always
Dynamic, the side of pedestal is set there are two the threaded hole penetrated through, and threaded hole is interior to connect soft copper wire terminal, soft copper wire terminal and annealed copper wire pressure
It connects, the other side of pedestal is bolted operation knock-off joint.
10. Outdoor Trusses For Transformer Substation crossbeam 10kV disconnecting switch electrification direct-connection method, by using power transformation intermediate potential method and distribution band
Electric Working gloves method combines, and in the open air 10kV, the different current class disconnecting switch of 10kV crossbeam carries out charging vertical direct connection,
Realize that disconnecting switch shunts, specific steps are as follows:
1) in-site measurement disconnecting switch is determined to drainage thread between bus and disconnecting switch to the distance between drainage thread between breaker
Required shunting line length, scene makes shunt line using annealed copper wire, and the both ends of annealed copper wire are vertical with 10kV disconnecting switch respectively
The soft copper wire terminal pincers pressure connection composition of shunt line fixture shunts fixture；
2) insulating ladder of adjustable angle is lifted into the standing beneath to the disconnecting switch of circuit interval fever phase in ground, insulated
Each insulation tricing line, transmission rope are fastened on ladder and hang up properly operating stick, the desired height of drawing traction rope adjustment insulating telescopic ladder, by
Positioning device positioning is slided, is clamped set knock-off joint, square base of the loop bar adaptor cup jointing in loop bar tail end using rotation drive device
On, start rotation drive device, adjust the required angle of insulating telescopic ladder, does in the four leg footing of double ladder that insulate with ground better
Line mark；
3) dotted line mark is carried out according to foot of ladder and ground, puts the fixed device of insulating ladder, is inserted into fixedly on folding mud mat
Pricker simultaneously hammers into underground and fixes, and the foot of ladder of insulating ladder and the fixed device installation of insulating ladder are fixed；
4) operation electrician wears a full set of electricity insulation clothes ascending stair of matching to setting lower section, hangs up properly safety belt, coaster is hung and is being generated heat
On the top bus of disconnecting switch, the insulating cord mounting of coaster shunts fixture, carries out and shunts fixture promotion preparation；
5) oxide layer of disconnecting switch to drainage thread between bus and disconnecting switch to the card contact between breaker on drainage thread is beaten
Mill processing；
6) ladder is upper and terrestrial operation electrician cooperation will shunt fixture and be promoted, and upper fixture is connected to disconnecting switch and is drained between bus
On line, disconnecting switch is connected to between breaker on drainage thread with lower fixture；
7) electrician's 10kV high pressure clamp on amperemeter is operated, instrument boot section is pushed into drainage thread and shunt line, instrument number respectively
After according to storage, drainage thread and shunt line are exited in instrument boot section respectively, checks instrument storing data；
8) after confirmation instrument storing data is qualified, the auxiliary tool that drawing shunts fixture is removed；It operates electrician and opens safety belt, edge
Backtracking；
9) insulating ladder of adjustable angle is withdrawn, fixedly pricker, finishing tool, installation terminate for extraction.
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| CN201910041017.4A CN109768486B (en) | 2019-01-16 | 2019-01-16 | Live direct connection device and method for transformer substation outdoor beam 10kV isolating switch |
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|---|---|---|---|
| CN201910041017.4A CN109768486B (en) | 2019-01-16 | 2019-01-16 | Live direct connection device and method for transformer substation outdoor beam 10kV isolating switch |
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| CN110364983A (en) * | 2019-08-19 | 2019-10-22 | 兴化市佳辉电力器具有限公司 | Multi-functional ground potential three-phase conducting wire support frame |
| CN111076681A (en) * | 2020-01-21 | 2020-04-28 | 国网福建省电力有限公司 | Quick check device for safety angle of pull rope and working method thereof |
| CN111431109A (en) * | 2020-05-07 | 2020-07-17 | 广东电网有限责任公司梅州供电局 | Cable drainage support |
| CN113964718A (en) * | 2021-11-22 | 2022-01-21 | 国网辽宁省电力有限公司鞍山供电公司 | Method for processing heating fault of conducting wire in electrified mode |
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| CN113964718A (en) * | 2021-11-22 | 2022-01-21 | 国网辽宁省电力有限公司鞍山供电公司 | Method for processing heating fault of conducting wire in electrified mode |
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