CN105932599A - Tool set capable of replacing insulator chain of ultra-high-voltage transmission line under electrified state and use method for tool set - Google Patents
Tool set capable of replacing insulator chain of ultra-high-voltage transmission line under electrified state and use method for tool set Download PDFInfo
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- CN105932599A CN105932599A CN201610436726.9A CN201610436726A CN105932599A CN 105932599 A CN105932599 A CN 105932599A CN 201610436726 A CN201610436726 A CN 201610436726A CN 105932599 A CN105932599 A CN 105932599A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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Abstract
The invention discloses a tool set capable of replacing an insulator chain of an ultra-high-voltage transmission line under an electrified state and a use method for the tool set. The tool set for replacing a duplex L-shaped composite insulator comprises a cross arm side back buckle capable of being mounted on a fitting at the suspension point of the insulator, and a T-shaped large knife buckle capable of being mounted on the fitting at the suspension point of a wire; an adjustable insulating pull rod and a linear wire-tightening device are arranged between the two ends of the cross arm side back buckle and the two ends of the T-shaped large knife buckle; and meanwhile, on the basis of the developed tool set for replacing the duplex L-shaped composite insulator, two inner side through holes of the T-shaped large knife buckle are connected with a wire-tightening screw rod and a half-moon buckle so as to realize an operation of replacing a duplex V-shaped whole insulator chain of the ultra-high-voltage transmission line under the electrified state. By adoption of the tool set, the problem existing in replacing the duplex L-shaped composite insulator and the duplex V-shaped whole insulator chain of the ultra-high-voltage transmission line under the electrified state is overcome; a large-area power failure is avoided; the power supply stability and reliability of the power grid are effectively improved; and obvious economic and social benefits are achieved.
Description
Technical field
The present invention relates to a kind of replacing transmission circuit insulator string tool set, particularly relate to one
Plant charged for replacement extra high voltage direct current transmission line duplex L-type and duplex V-type bunch of insulator is complete
Instrument.The invention still further relates to this charged for replacement extra high voltage direct current transmission line duplex L-type and duplex
The using method of V-type bunch of insulator tool set.
Background technology
Along with rapid economic development, building UHV transmission line becomes China's energy and economic society
The inevitable requirement that can develop in harmony, global energy internet is with extra-high voltage grid as backbone network simultaneously
Frame.And along with the development of extra high voltage line, duplex L-type insulator string is widely used in small angle tower
In tower, duplex V-type insulator string is widely used in tangent tower.Operating insulator is not only
Bear the effect of operating voltage for a long time, but also to be made by overvoltage such as operation and thunders and lightnings
With, dunghill, external force that wire deadweight in addition, wind-force, ice and snow and insulator are adhered to are destroyed
Impact etc. reason so that operating insulator will appear from damaging, affects line security and runs.
And UHV transmission line transmission capacity is big, once puts into operation, be then difficult to carry out interruption maintenance,
Therefore, in order to improve power supply reliability, it is ensured that UHV transmission line safe and stable operation, need
Charged for replacement is unsatisfactory for the insulator of service requirement in time.
± 800kV UHV transmission line is the direct current of highest voltage level the most in the world
Transmission line of electricity, this is a brand-new field.Associated band charged renewal extra high voltage direct current transmission line
Worldwide there is blank in duplex L-type and duplex V-type bunch of insulator Work tool, it is achieved
There is huge obstacle in replacing insulator under electrified operation.
Through retrieval, abroad for associated band charged renewal extra high voltage direct current transmission line duplex L-type and
The research of duplex V-type bunch of insulator Work tool is still in blank.Domestic carried out few in number
Research: Chinese patent CN102693789A, CN203895850U have reported a kind of charged respectively
Change the method for 500kV circuit " L " insulator string and for charged for replacement 500kV power transmission line
The fixture of road insulator L string, but on the one hand due to leads of ultra-high voltage power transmission lines load relatively superelevation
Pressure transmission line is big, on the other hand the type of attachment of UHV transmission line L string gold utensil and superelevation
The gold utensil type of attachment of pressure transmission line L string there is also difference, patent CN102693789A,
Work tool mechanical strength and design type that CN203895850U develops no longer meet requirement, no
It is applicable to UHV transmission line L string.And domestic be only to charged for replacement extra high voltage network
L string composite insulator Work tool carried out research, for charged for replacement extra-high voltage direct-current transmission line
The research of road L string Work tool is domestic also has no report.
For charged for replacement extra high voltage direct current transmission line duplex V-type bunch of insulator Work tool and
Technique study, patent CN104505763A proposes a kind of charged for replacement UHVDC Transmission Lines
The method of duplex V string composite insulator, the method program is simple and clear, efficiency is higher, but by
In porcelain or glass insulator from great, its method proposed and Work tool used be only capable of charged more
Change UHV transmission line composite insulator, to charged for replacement duplex V string porcelain or glass insulation
Sub and inapplicable.It is double that patent CN203014262U discloses a kind of compact transmission line V-type
Connection glass or porcelain insulator string change fixture, patent CN201956623U devises a kind of use
In ± the service kit of 660kV DC power transmission line V-type list insulator string, patent
CN102361258B have developed the charged for replacement list V insulator string of a kind of direct current quadripartion circuit
Instrument, but the Work tool of above-mentioned patent development is unsatisfactory for wanting due to mechanical strength and design type
Ask, be not suitable for charged for replacement extra high voltage direct current transmission line duplex V-type bunch of insulator.
Summary of the invention
It is high, general that first technical problem to be solved by this invention is to provide a kind of production efficiency
The charged for replacement UHV transmission line insulator chain tool set that property is strong.
It is defeated that second technical problem to be solved by this invention is to provide this charged for replacement extra-high voltage
The using method of electric line insulator chain tool set.
In order to solve above-mentioned first technical problem, the charged for replacement extra-high voltage that the present invention provides is defeated
Electric line insulator chain tool set, can be arranged at insulator hanging point on gold utensil including one
Card and a T-shaped machete card being arranged on conducting wire hanging point gold utensil after cross-arm side, described
After cross-arm side card two ends and the two ends of described T-shaped machete card between be connected have adjustable absolutely
Edge pull-rod and straight line turnbuckle.
Described adjusting insulation pull-rod is made up of three joints, and a middle joint is a sleeve, described
Sleeve be provided with bolt hole, two ends be two also with the short insulation pull-rod of bolt hole, described
Sleeve be fixedly connected by described bolt hole and bolt with described short insulation pull-rod.
A diameter of 14.5mm of the described bolt hole that described adjusting insulation pull-rod is provided with,
The thickness of described sleeve and described short insulation pull-rod is 4mm, described short insulation pull-rod
External diameter be 32mm, the external diameter of described sleeve is 40mm.
Being filled with foam in described adjusting insulation pull-rod, adjustable-length is 1.5m～2m.
Described T-shaped machete card is assembled by machete card and T-shaped fixture, described T-shaped card
It is attached fixing by the way of latch with described machete card end in the middle of tool, described T
Being provided with two draw-in grooves outside type fixture, inner side is provided with two through holes, and two described draw-in grooves are with logical
Hole the most T-shaped fixture center line is symmetrical.
Block after described T-shaped machete card and described cross-arm side by titanium alloy material making
Become.
The two ends of first quarter moon card are all connected by the two ends of thread-tightening lead screw with described T-shaped machete card.
Described first quarter moon card is made by epoxy glass laminate material, in described first quarter moon card
Portion becomes semicircle, and semicircle diameter is slightly larger than porcelain or the diameter of glass insulator steel cap, and institute
The two ends of the first quarter moon card stated are symmetrical about the semicircular center of circle, middle part, its end be provided with 14.5mm～
The through hole of 15mm.
In order to solve above-mentioned second technical problem, the use charged for replacement that the present invention provides is extra-high
The method of pressure transmission line insulator chain tool set, charged for replacement extra high voltage direct current transmission line
Duplex L-type composite insulator, comprises the steps:
1. on tower, earth potential and equipotential live line work personnel step on tower in succession to L string composite insulator peace
Holding position, on transmission power tool to tower, on tower, earth potential operating personnel will fix after cross-arm side
It is scheduled on the right angle link plate of insulator chain cross-arm side to be replaced；
2. on tower, T-shaped machete card is arranged on the yoke plate at conducting wire hanging point by equipotential operating personnel
On, and ensure that direction, T-shaped fixture place is vertical with duplex L-type composite insulator place plane；
3. on tower, equipotential operating personnel cooperates with earth potential working personnel, at T-shaped machete
Adjusting insulation pull-rod and straight line turnbuckle is installed between card, simultaneously at T after card and cross-arm side
Type machete card installs insulation coaster near side of wire, and insulation coaster is connected with pull rope；Lead to again
Cross that to tighten up the load transfer that composite insulator string bears by straight line turnbuckle extra-high to charged for replacement
On pressure transmission line insulator chain tool set；
4. on tower, the two ends of duplex L-type composite insulator are hung by operating personnel respectively with insulator
At Dian, gold utensil and conducting wire hanging point gold utensil depart from, and ground staff starts pulling equipment by insulation coaster
On pull rope be replaced after composite insulator string let-down；
5. change another string compound inslation period of the day from 11 p.m. to 1 a.m of duplex L-type composite insulator, before replacing, need root
According to duplex L-type composite insulator and the good adjusting insulation pull-rod of length adjustment of connection gold utensil thereof
Length.
Charged for replacement extra high voltage direct current transmission line duplex V-type bunch of insulator, including walking as follows
Rapid:
1. on tower, equipotential electrician and earth potential electrician put on screening clothing, carry insulating tool and work
Utensil, arrives job position, and hangs up properly insulation transmission rope；Ground coordinates personnel to transmit operation work
Having to tower, on tower, earth potential operating personnel will fasten after cross-arm side at insulator chain to be replaced
On the right angle link plate of cross-arm side；
2. on tower, T-shaped machete card is arranged on the yoke plate at conducting wire hanging point by equipotential operating personnel
On, and ensure that direction, T-shaped fixture place is vertical with duplex composite insulator place plane；On tower
Equipotential live line work personnel cooperate with earth potential working personnel, at T-shaped machete card and cross-arm side
Adjusting insulation pull-rod and straight line turnbuckle is installed between rear card；
3. thread-tightening lead screw one end is connected to the through hole, inner side of T-shaped machete card, and the other end passes through
Insulating cord connects first quarter moon card, and first quarter moon card is installed at side of wire insulator steel cap, tightens up tight
Filament bar, makes first quarter moon card stress, installs insulation at T-shaped machete card near side of wire sliding simultaneously
Car, insulation coaster is connected with pull rope, arranges insulator trailer system, and ground electrician installs
Good motor-driven grinding mill；
4. by tightening up the load transfer that duplex V-type bunch of insulator is born by straight line turnbuckle
On charged for replacement UHV transmission line insulator chain tool set；Equipotential live line work personnel's handle
Insulating cord colligation, on duplex V-type bunch of insulator, is tightened up thread-tightening lead screw and is made the whole string of duplex V-type
Insulator hanging point relaxes, and is departed from hardware by duplex V-type bunch of insulator, by traction
Rope puts down duplex V-type bunch of insulator so that it is pendency；
5. earth potential working personnel are by insulating cord one end colligation duplex V of card end after cross-arm side
On 2nd～3 insulator of type bunch of insulator, insulating cord enters motor-driven strand by corner block
Mill；Tightening up motor-driven grinding mill, adjust to correct position, earth potential electrician disconnects bulb, by duplex
Ground is reached under V-type bunch of insulator；Motor-driven grinding mill lifts by crane new duplex V-type bunch of insulator,
Equipotential live line work personnel and earth potential working personnel install duplex V-type by the reverse order removed
Bunch of insulator.
Use the charged for replacement complete work of UHV transmission line insulator chain of technique scheme
Tool and using method thereof, utilize gold utensil straight line link plate and side of wire hardware connection at cross-arm hanging point
Plate does the fulcrum of instrument, is respectively mounted card and T-shaped machete card after the cross-arm side of supporting development, joins
The lotus that after closing cross-arm side, card, T-shaped machete card, straight line turnbuckle and adjusting insulation pull-rod form
Carry transfer system (installing thread-tightening lead screw and first quarter moon card additional when changing duplex V string), by duplex L-type
The load transfer that composite insulator string or duplex V-type bunch of insulator bear is special to charged for replacement
On high-voltage transmission line insulator string tool set, check that charged for replacement UHV transmission line is exhausted
The connection of edge substring tool set and stress are good, operating personnel by insulator chain two ends with couple
Gold utensil departs from, and ground staff starts pulling equipment and is replaced after insulator chain let-down.
The present invention has a following technical advantage:
1. the present invention is complete by developing charged for replacement duplex L-type and duplex V-type bunch of insulator
Instrument, has captured extra-high voltage duplex L-type and duplex V-type bunch of insulator is difficult to charged for replacement
A difficult problem.
2. insulation pull-rod uses adjustable design structure, can meet duplex L-type different directions multiple
Close the replacing of insulator, highly versatile.
3. the T-shaped machete card of development and design, on the one hand can change the installation of load transfer system
Direction, makes load transfer system place in-plane perpendicular with yoke plate place in-plane, side
Just composite insulator and the disengaging of yoke plate；It is tight that the outside of the most T-shaped machete card connects straight line
Line device, inner side can connect special thread-tightening lead screw, for realizing duplex V-type porcelain or glass insulator
Replacing provide support.
In sum, the present invention is the charged for replacement that a kind of security is high, can improve production efficiency
UHV transmission line insulator chain tool set and using method thereof.
Accompanying drawing explanation
Fig. 1 is the implementing procedure figure of design of the present invention.
Fig. 2 is ± 800kV DC power transmission line L goes here and there composite insulator layout drawing.
Fig. 3 is L string composite insulator force analysis schematic diagram.
Fig. 4 is the structural representation of adjusting insulation pull-rod.
Fig. 5 is the schematic cross-section of adjusting insulation pull-rod.
Fig. 6 is that charged for replacement extra high voltage direct current transmission line duplex L-type composite insulator is faced
Figure.
Fig. 7 is charged for replacement extra high voltage direct current transmission line duplex L-type composite insulator side-looking
Figure.
Fig. 8 is straight line turnbuckle structural representation.
Fig. 9 is machete card structure schematic diagram.
Figure 10 is T-shaped fixture structure schematic diagram.
Figure 11 is T-shaped machete card structure schematic diagram.
Figure 12 is card front view after cross-arm side.
Figure 13 is card side view after cross-arm side.
Figure 14 is that L string enters electric-field path schematic diagram.
Figure 15 charged for replacement extra high voltage direct current transmission line duplex V-type bunch of insulator is faced
Figure.
Figure 16 charged for replacement extra high voltage direct current transmission line duplex V-type bunch of insulator side-looking
Figure.
Figure 17 is special thread-tightening lead screw structural representation.
Figure 18 is first quarter moon card front view.
Figure 19 is first quarter moon card side view.
Detailed description of the invention
The present invention will be further described with example below in conjunction with the accompanying drawings.
The technical program be embodied as flow chart as shown in Figure 1.First determine duplex L-type and
The load of duplex V-type insulator chain, carries out adjustable according to the load situation that insulator chain bears
Insulation pull-rod and the design of front and back end fixture.Mechanical strength check is carried out after having designed, full
Foot formulates, after requiring, the mode entering electric field, and utilizes FInite Element to carry out human body surface electric-field strength
Degree calculates, and determines operating personnel's safety prevention measure, carries out the on probation of Work tool the most at the scene.
Embodiment 1: charged for replacement extra high voltage direct current transmission line duplex L-type composite insulator
± 800kV DC power transmission line L string composite insulator 7 deployment scenarios as in figure 2 it is shown,
Composite insulator string and the entire length of connected gold utensil thereof that l-shaped is arranged are different, duplex L-type
One end of composite insulator 7 is connected to side of wire hardware yoke plate, and the other end is connected to cross-arm
Pendant point hardware right-angle link plate, therefore, long for satisfied replacing extra high voltage direct current transmission line difference
The duplex L-type composite insulator 7 of degree and the needs of connected gold utensil, the extra-high straightening of charged for replacement
Insulation pull-rod in stream transmission line of electricity duplex L-type composite insulator tool set possesses length can
The function adjusted.
Duplex L-type composite insulator 7 deployment scenarios according to Fig. 2, its force analysis figure such as figure
Shown in 3, choose the wire that calculated weight is 3100kg/km (i.e. 3.2t/km) right for research
Pressing 500m as, span to calculate, wire is 6 divisions, then the vertical load of L string be 3100 ×
0.5 × 6=9.3t.Vertical direction stress F=9300 × 10=93000N.By Force Calculation,
Both direction L string stressing conditions is as shown in formula 1, formula 2.
F1=F × cos30 °=93000 × 1.732/2=80538N (1)
F2=F × sin30 °=93000 × 0.5=46500N (2)
Below as a example by adjusting insulation pull-rod 2, its mechanical strength is checked.By formula 1,
Formula 2 calculates the live load understanding adjusting insulation pull-rod 2: T=80538N；
Safety coefficient: K=3.0；
Material selects: epoxy resin；
Ultimate stress limit τj=800N/mm2；
Bursting stress allowable [τ]=800/3=266N/mm2。
Adjusting insulation pull-rod by insulator chain load T=80538N, its front view such as Fig. 4 institute
Showing, sectional dimension is as shown in Figure 5.
Sectional area:
SM=π R2-πr2-1/2 × (LR-Lr)=316.5mm2 (3)
Tensile stress:
σ=T/SM=80538/316.5=254.5N/mm2 (4)
Allowable tensile stress:
Therefore adjusting insulation pull-rod intensity is enough.
After having verified the mechanical strength of instrument, preferably, determine that employing hanging basket method is entered
Entering electric field, concrete entrance electric-field path as shown in figure 14, and utilizes FInite Element to its body
Table field intensity has carried out computational analysis, it is determined that the safety prevention measure that operating personnel should take,
Finally Work tool is carried out on-the-spot on probation.
See Fig. 6 and Fig. 7, the present invention provide for charged for replacement extra-high voltage direct-current transmission line
The charged for replacement complete work of UHV transmission line insulator chain of road duplex L-type composite insulator 7
Tool, including card 1 and an energy after a cross-arm side being arranged at insulator hanging point on gold utensil
The T-shaped machete card 3 being arranged on conducting wire hanging point gold utensil, blocks two ends and the T of 1 after cross-arm side
Connect between the two ends of type machete card 3 and have adjusting insulation pull-rod 2 and straight line turnbuckle 4.
Adjusting insulation pull-rod 2 structural representation as shown in Figure 4, is made up of three joints, middle one
Joint is a sleeve 21, and described sleeve 21 is provided with bolt hole 22, and two ends are two and also carry
Having the short insulation pull-rod 23 of bolt hole, sleeve 21 and short insulation pull-rod 23 are by bolt hole 22
It is fixedly connected with bolt 24.Preferably, adjusting insulation pull-rod 2 is provided with
The a diameter of 14.5mm of bolt hole 22, sleeve 21 and the thickness of short insulation pull-rod 23 connected
Degree is 4mm, and the external diameter of short insulation pull-rod 23 is 32mm, and the external diameter of sleeve 21 is 40mm,
The adjustable-length of insulation pull-rod is 1.5m～2m.Adjusting insulation is filled with foam in drawing .2.
As shown in figure 11, T-shaped machete card 3 is by machete card 31 (see Fig. 9) and T-shaped fixture
32 (see Figure 10) are assembled, and it is made by titanium alloy material.T-shaped fixture 32
Centre is attached fixing with machete card 31 end by the way of latch, and T-shaped fixture 32
Outside is provided with two draw-in grooves, and inner side is provided with two through holes, and two draw-in grooves are the most relative with through hole T-shaped
Fixture 32 center line is symmetrical.
Use charged for replacement UHV transmission line insulator chain tool set charged for replacement extra-high
The method of pressure DC power transmission line duplex L-type composite insulator 7, comprises the steps:
1. on tower, earth potential and equipotential live line work personnel step on tower in succession to duplex L-type compound inslation
Son 7 installation sites, on transmission power tool to tower, on tower, earth potential operating personnel is by cross-arm side
Rear card 1 is fixed on the right angle link plate of insulator chain cross-arm side to be replaced；
2. on tower, T-shaped machete card 3 is arranged on the yoke plate at conducting wire hanging point by equipotential operating personnel
On, and ensure that direction, T-shaped fixture 32 place is vertical with duplex composite insulator place plane；
3. on tower, equipotential operating personnel cooperates with earth potential working personnel, at T-shaped machete
Block after card 3 and cross-arm side between 1 and install adjusting insulation pull-rod 2 and straight line turnbuckle 4,
Install insulation coaster at T-shaped machete card 3 near side of wire simultaneously, insulation coaster is connected with and leads
Messenger.Again by tightening up the load that duplex L-type composite insulator 7 is born by straight line turnbuckle 4
Transfer on charged for replacement UHV transmission line insulator chain tool set；
4. on tower, the two ends of duplex L-type composite insulator 7 are hung by operating personnel respectively with insulator
At Dian, gold utensil and conducting wire hanging point gold utensil depart from, and ground staff starts pulling equipment by insulation coaster
On pull rope be replaced after duplex L-type composite insulator 7 let-down；
5. another string compound inslation period of the day from 11 p.m. to 1 a.m of duplex L-type composite insulator 7 is changed, before replacing
Need to be according to duplex L-type composite insulator 7 and the good adjusting insulation of length adjustment connecting gold utensil thereof
The length of pull-rod 2.
Embodiment 2: charged for replacement extra high voltage direct current transmission line duplex V-type bunch of insulator 8
See Figure 15 and Figure 16, the charged for replacement extra high voltage direct current transmission line whole string of duplex V-type
The insulator 8 i.e. charged for replacement UHV transmission line of duplex V-type porcelain or glass insulator is exhausted
Edge substring tool set, is in the charged for replacement extra-high voltage changing duplex L-type composite insulator 7
On the basis of transmission circuit insulator string tool set, by two inner sides of T-shaped machete card 3
Through hole connects thread-tightening lead screw 5 (see Figure 17) and first quarter moon card 6 (see Figure 18-19), and its structure is:
Can pacify including card 1 after a cross-arm side being arranged at insulator hanging point on gold utensil and one
The T-shaped machete card 3 being contained on conducting wire hanging point gold utensil, after cross-arm side, the two ends of card 1 are with T-shaped
Connect between the two ends of machete card 3 and have adjusting insulation pull-rod 2 and straight line turnbuckle 4, first quarter moon
The two ends of card 6 are all connected by the two ends of thread-tightening lead screw 5 with T-shaped machete card 3.First quarter moon card 6
It is made by epoxy glass laminate material, in the middle part of first quarter moon card 6, becomes semicircle, round diameter
Slightly larger than porcelain or the diameter of glass insulator steel cap, and first quarter moon card 6 two ends are about middle part semicircle
The center of circle of shape is symmetrical.Preferably, its end is provided with the through hole of 14.5mm～15mm.
Use charged for replacement UHV transmission line insulator chain tool set charged for replacement extra-high
Pressure DC power transmission line duplex V-type bunch of insulator 8 i.e. duplex V-type whole string porcelain or glass is exhausted
The method of edge, comprises the steps:
1. on tower, equipotential electrician and earth potential electrician put on screening clothing, carry insulating tool and work
Utensil, arrives job position, and hangs up properly insulation transmission rope；Ground coordinates personnel to transmit operation work
Having to tower, on tower, earth potential operating personnel is fixed on insulator to be replaced by blocking 1 after cross-arm side
On the right angle link plate of string cross-arm side；
2. on tower, T-shaped machete card 3 is arranged on the yoke plate at conducting wire hanging point by equipotential operating personnel
On, and ensure direction, T-shaped fixture 32 place and duplex V-type bunch of insulator 8 place plane
Vertically；On tower, equipotential operating personnel cooperates with earth potential working personnel, at T-shaped machete
Block after card 3 and cross-arm side between 1 and install adjusting insulation pull-rod 2 and straight line turnbuckle 4；
3. thread-tightening lead screw 5 one end is connected to the through hole, inner side of T-shaped machete card 3, the other end
Connecting first quarter moon card 6 by insulating cord, first quarter moon card 6 is installed to close side of wire insulator steel cap,
Tighten up thread-tightening lead screw 5, make first quarter moon card 6 stress, simultaneously at T-shaped machete card 3 near side of wire
Install insulation coaster, insulation coaster be connected with pull rope, arrange insulator trailer system,
Ground electrician installs motor-driven grinding mill；
4. the load that duplex V-type bunch of insulator 8 bears is turned by tightening up straight line turnbuckle 4
Move on on charged for replacement UHV transmission line insulator chain tool set；Equipotential live line work personnel
Insulating cord colligation on duplex V-type bunch of insulator 8, tighten up thread-tightening lead screw 5 and make duplex V
Type bunch of insulator 8 hanging point relaxes, and is departed from hardware by duplex V-type bunch of insulator 8,
By pull rope, duplex V-type bunch of insulator 8 is put down so that it is pendency；
5. the colligation of insulating cord one end is blocked duplex V of 1 end after cross-arm side by earth potential working personnel
On 2nd～3 insulator of type bunch of insulator 8, insulating cord enters motor-driven by corner block
Strand mill；Tightening up motor-driven grinding mill, adjust to correct position, earth potential electrician disconnects bulb, will be double
Connection V-type bunch of insulator reaches ground 8 times；Motor-driven grinding mill lifts by crane the whole string insulation of new duplex V-type
Son 8, equipotential live line work personnel and earth potential working personnel install duplex by the reverse order removed
V-type bunch of insulator 8.
Use the charged for replacement complete work of UHV transmission line insulator chain of technique scheme
Tool and using method thereof, utilize gold utensil straight line link plate and side of wire hardware connection at cross-arm hanging point
Plate does the fulcrum of instrument, is respectively mounted card 1 and T-shaped machete card 3 after the cross-arm side of supporting development,
1, T-shaped machete card 3, straight line turnbuckle 4 and adjusting insulation pull-rod 2 is blocked after coordinating cross-arm side
The charged for replacement UHV transmission line insulator chain i.e. load transfer system of tool set of composition
(installing thread-tightening lead screw 5 and first quarter moon card 6 additional when changing duplex V string), by compound for duplex L-type exhausted
The load transfer that edge 7 or duplex V-type bunch of insulator 8 bear i.e. carries to load transfer system
On charged renewal UHV transmission line insulator chain tool set, check the company of load transfer system
Connecing good with stress, insulator chain two ends are departed from by operating personnel with connecting tool, ground staff
Start pulling equipment to be replaced after insulator chain let-down.In sum, the present invention is a kind of
Security is high, can improve the charged for replacement extra high voltage direct current transmission line duplex L-type of production efficiency
With duplex V-type bunch of insulator tool set and using method thereof.
The above, be only presently preferred embodiments of the present invention, not makees the present invention any
Pro forma restriction, every any simple modification made according to the technical spirit of the present invention, all
Still fall within the range of technical solution of the present invention.
Claims (10)
1. a charged for replacement UHV transmission line insulator chain tool set, is characterized in that:
Can pacify including card (1) after a cross-arm side being arranged at insulator hanging point on gold utensil and one
The T-shaped machete card (3) being contained on conducting wire hanging point gold utensil, blocks the two of (1) after described cross-arm side
Hold be connected between the two ends of described T-shaped machete card (3) have adjusting insulation pull-rod (2) and
Straight line turnbuckle (4).
Charged for replacement UHV transmission line insulator the most according to claim 1 conspires to create
Set instrument, is characterized in that: described adjusting insulation pull-rod (2) is made up of three joints, middle one
Joint is a sleeve (21), and described sleeve (21) is provided with bolt hole (22), and two ends are two
Also with the short insulation pull-rod (23) of bolt hole, described sleeve (21) draws with described short insulation
Rod (23) is fixedly connected by described bolt hole (22) and bolt (24).
Charged for replacement UHV transmission line insulator the most according to claim 2 conspires to create
Set instrument, is characterized in that: the described bolt that described adjusting insulation pull-rod (2) is provided with
A diameter of 14.5mm in hole (22), described sleeve (21) and described short insulation pull-rod (23)
Thickness be 4mm, the external diameter of described short insulation pull-rod (23) is 32mm, described sleeve
(21) external diameter is 40mm.
Charged for replacement UHV transmission line insulator the most according to claim 1 and 2
String tool set, is characterized in that: be filled with foam in described adjusting insulation pull-rod (2),
Adjustable-length is 1.5m～2m.
Charged for replacement UHV transmission line insulator the most according to claim 1 and 2
String tool set, is characterized in that: described T-shaped machete card (3) is by machete card (31) and T-shaped
Fixture (32) is assembled, with described machete card (31) in the middle of described T-shaped fixture (32)
End is attached fixing by the way of latch, and described T-shaped fixture (32) outside is provided with two
Individual draw-in groove, inner side is provided with two through holes, two described draw-in groove T-shaped fixtures the most relative with through hole
Center line is symmetrical.
Charged for replacement UHV transmission line insulator the most according to claim 1 and 2
String tool set, is characterized in that: block after described T-shaped machete card (3) and described cross-arm side
(1) it is made by titanium alloy material.
Charged for replacement UHV transmission line insulator the most according to claim 1 and 2
String tool set, it is characterized in that: the two ends of first quarter moon card (6) all by thread-tightening lead screw (5) with described
T-shaped machete card (3) two ends connect.
Charged for replacement UHV transmission line insulator the most according to claim 7 conspires to create
Set instrument, is characterized in that: described first quarter moon card (6) made by epoxy glass laminate material and
Becoming, described first quarter moon card (6) middle part becomes semicircle, and semicircle diameter is slightly larger than porcelain or glass
The diameter of insulator steel cap, and the two ends of described first quarter moon card (6) are about the semicircular circle in middle part
The heart is symmetrical, and its end is provided with the through hole of 14.5mm～15mm.
9. use the charged for replacement UHV transmission line insulator described in claim 1 to conspire to create
The method of set instrument, charged for replacement extra high voltage direct current transmission line duplex L-type composite insulator,
It is characterized in that: comprise the steps:
1. on tower, earth potential and equipotential live line work personnel step on tower in succession to L string composite insulator peace
Holding position, on transmission power tool to tower, on tower, earth potential operating personnel will fix after cross-arm side
It is scheduled on the right angle link plate of insulator chain cross-arm side to be replaced；
2. on tower, T-shaped machete card is arranged on the yoke plate at conducting wire hanging point by equipotential operating personnel
On, and ensure that direction, T-shaped fixture place is vertical with duplex L-type composite insulator place plane；
3. on tower, equipotential operating personnel cooperates with earth potential working personnel, at T-shaped machete
Adjusting insulation pull-rod and straight line turnbuckle is installed between card, simultaneously at T after card and cross-arm side
Type machete card installs insulation coaster near side of wire, and insulation coaster is connected with pull rope；Lead to again
Cross that to tighten up the load transfer that composite insulator string bears by straight line turnbuckle extra-high to charged for replacement
On pressure transmission line insulator chain tool set；
4. on tower, the two ends of duplex L-type composite insulator are hung by operating personnel respectively with insulator
At Dian, gold utensil and conducting wire hanging point gold utensil depart from, and ground staff starts pulling equipment by insulation coaster
On pull rope be replaced after composite insulator string let-down；
5. change another string compound inslation period of the day from 11 p.m. to 1 a.m of duplex L-type composite insulator, before replacing, need root
According to duplex L-type composite insulator and the good adjusting insulation pull-rod of length adjustment of connection gold utensil thereof
Length.
10. use the charged for replacement UHV transmission line insulator described in claim 1 to conspire to create
The method of set instrument, charged for replacement extra high voltage direct current transmission line duplex V-type bunch of insulator,
It is characterized in that: comprise the steps:
1. on tower, equipotential electrician and earth potential electrician put on screening clothing, carry insulating tool and work
Utensil, arrives job position, and hangs up properly insulation transmission rope；Ground coordinates personnel to transmit operation work
Having to tower, on tower, earth potential operating personnel will fasten after cross-arm side at insulator chain to be replaced
On the right angle link plate of cross-arm side；
2. on tower, T-shaped machete card is arranged on the yoke plate at conducting wire hanging point by equipotential operating personnel
On, and ensure that direction, T-shaped fixture place is vertical with duplex composite insulator place plane；On tower
Equipotential live line work personnel cooperate with earth potential working personnel, at T-shaped machete card and cross-arm side
Adjusting insulation pull-rod and straight line turnbuckle is installed between rear card；
3. thread-tightening lead screw one end is connected to the through hole, inner side of T-shaped machete card, and the other end passes through
Insulating cord connects first quarter moon card, and first quarter moon card is installed at side of wire insulator steel cap, tightens up tight
Filament bar, makes first quarter moon card stress, installs insulation at T-shaped machete card near side of wire sliding simultaneously
Car, insulation coaster is connected with pull rope, arranges insulator trailer system, and ground electrician installs
Good motor-driven grinding mill；
4. by tightening up the load transfer that duplex V-type bunch of insulator is born by straight line turnbuckle
On charged for replacement UHV transmission line insulator chain tool set；Equipotential live line work personnel's handle
Insulating cord colligation, on duplex V-type bunch of insulator, is tightened up thread-tightening lead screw and is made the whole string of duplex V-type
Insulator hanging point relaxes, and is departed from hardware by duplex V-type bunch of insulator, by traction
Rope puts down duplex V-type bunch of insulator so that it is pendency；
5. earth potential working personnel are by insulating cord one end colligation duplex V of card end after cross-arm side
On 2nd～3 insulator of type bunch of insulator, insulating cord enters motor-driven strand by corner block
Mill；Tightening up motor-driven grinding mill, adjust to correct position, earth potential electrician disconnects bulb, by duplex
Ground is reached under V-type bunch of insulator；Motor-driven grinding mill lifts by crane new duplex V-type bunch of insulator,
Equipotential live line work personnel and earth potential working personnel install duplex V-type by the reverse order removed
Bunch of insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610436726.9A CN105932599A (en) | 2016-06-17 | 2016-06-17 | Tool set capable of replacing insulator chain of ultra-high-voltage transmission line under electrified state and use method for tool set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610436726.9A CN105932599A (en) | 2016-06-17 | 2016-06-17 | Tool set capable of replacing insulator chain of ultra-high-voltage transmission line under electrified state and use method for tool set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105932599A true CN105932599A (en) | 2016-09-07 |
Family
ID=56830990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610436726.9A Pending CN105932599A (en) | 2016-06-17 | 2016-06-17 | Tool set capable of replacing insulator chain of ultra-high-voltage transmission line under electrified state and use method for tool set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105932599A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244810A (en) * | 2015-10-29 | 2016-01-13 | 国家电网公司 | Clamping fixture for power-failure replacement of 110kV line hydraulic tension wire clamp single-string insulator |
| CN106451237A (en) * | 2016-12-07 | 2017-02-22 | 中国南方电网有限责任公司超高压输电公司百色局 | Connecting device for in-out operation of strain insulator string of ultra-high voltage transmission line and use method |
| CN106451214A (en) * | 2016-10-28 | 2017-02-22 | 国网浙江省电力公司金华供电公司 | Combined tool for electrically replacing extra-high voltage same-tower double-circuit tension insulator |
| CN108462099A (en) * | 2018-02-27 | 2018-08-28 | 国家电网公司 | One kind ± 800kV extra high voltage line double-linkage double-hanging-point pendulous string isolator replacing options |
| CN108565771A (en) * | 2018-02-27 | 2018-09-21 | 国家电网公司 | One kind ± 800kV extra high voltage line double-linkage double-hanging-point pendulous string isolators more changing device |
| CN109217170A (en) * | 2018-08-01 | 2019-01-15 | 国网浙江省电力有限公司金华供电公司 | The replacement tool of ground electrode circuit insulator and fitting |
| CN110011215A (en) * | 2019-02-11 | 2019-07-12 | 国家电网有限公司 | Replace the combination tool and method of direct current grounding pole route suspension string |
| CN111697487A (en) * | 2020-07-08 | 2020-09-22 | 国网福建省电力有限公司 | Voltage-measurable live-line double-insulator-string replacing device and operation method |
| CN114362049A (en) * | 2022-01-19 | 2022-04-15 | 云南电网有限责任公司曲靖供电局 | Complete tool for indirectly replacing 10kV line tension insulator in electrified mode and using method |
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| CN201937206U (en) * | 2010-12-07 | 2011-08-17 | 江西省电力公司超高压分公司 | Universal tool for electrically replacing 500kV strain insulator string |
| CN203456796U (en) * | 2013-08-15 | 2014-02-26 | 国网浙江省电力公司杭州供电公司 | Broadsword fixture for replacing single insulator of duplex insulator string during power failure |
| CN205791227U (en) * | 2016-06-17 | 2016-12-07 | 国网湖南省电力公司带电作业中心 | Charged for replacement UHV transmission line insulator chain tool set |
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| CN85204169U (en) * | 1985-09-28 | 1986-07-09 | 鞍山电业局 | Clamping fixture for exchangeing paired gang insulator without opening current |
| CN201937206U (en) * | 2010-12-07 | 2011-08-17 | 江西省电力公司超高压分公司 | Universal tool for electrically replacing 500kV strain insulator string |
| CN203456796U (en) * | 2013-08-15 | 2014-02-26 | 国网浙江省电力公司杭州供电公司 | Broadsword fixture for replacing single insulator of duplex insulator string during power failure |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244810A (en) * | 2015-10-29 | 2016-01-13 | 国家电网公司 | Clamping fixture for power-failure replacement of 110kV line hydraulic tension wire clamp single-string insulator |
| CN106451214A (en) * | 2016-10-28 | 2017-02-22 | 国网浙江省电力公司金华供电公司 | Combined tool for electrically replacing extra-high voltage same-tower double-circuit tension insulator |
| CN106451237A (en) * | 2016-12-07 | 2017-02-22 | 中国南方电网有限责任公司超高压输电公司百色局 | Connecting device for in-out operation of strain insulator string of ultra-high voltage transmission line and use method |
| CN108462099A (en) * | 2018-02-27 | 2018-08-28 | 国家电网公司 | One kind ± 800kV extra high voltage line double-linkage double-hanging-point pendulous string isolator replacing options |
| CN108565771A (en) * | 2018-02-27 | 2018-09-21 | 国家电网公司 | One kind ± 800kV extra high voltage line double-linkage double-hanging-point pendulous string isolators more changing device |
| CN108565771B (en) * | 2018-02-27 | 2021-05-14 | 国家电网公司 | Device for replacing double-linkage double-hanging-point suspension string insulator of +/-800 kV extra-high voltage line |
| CN109217170A (en) * | 2018-08-01 | 2019-01-15 | 国网浙江省电力有限公司金华供电公司 | The replacement tool of ground electrode circuit insulator and fitting |
| CN110011215A (en) * | 2019-02-11 | 2019-07-12 | 国家电网有限公司 | Replace the combination tool and method of direct current grounding pole route suspension string |
| CN111697487A (en) * | 2020-07-08 | 2020-09-22 | 国网福建省电力有限公司 | Voltage-measurable live-line double-insulator-string replacing device and operation method |
| CN114362049A (en) * | 2022-01-19 | 2022-04-15 | 云南电网有限责任公司曲靖供电局 | Complete tool for indirectly replacing 10kV line tension insulator in electrified mode and using method |
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Application publication date: 20160907 |