CN105576550B - A kind of charged for replacement UHV transmission line single chip tension insulator method - Google Patents
A kind of charged for replacement UHV transmission line single chip tension insulator method Download PDFInfo
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- CN105576550B CN105576550B CN201410534459.XA CN201410534459A CN105576550B CN 105576550 B CN105576550 B CN 105576550B CN 201410534459 A CN201410534459 A CN 201410534459A CN 105576550 B CN105576550 B CN 105576550B
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- insulator
- tightening device
- work personnel
- livewire work
- transmission line
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- 239000012212 insulator Substances 0.000 title claims abstract description 100
- 230000005540 biological transmission Effects 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000012546 transfer Methods 0.000 claims abstract description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 15
- 239000010931 gold Substances 0.000 claims description 15
- 229910052737 gold Inorganic materials 0.000 claims description 15
- 238000009413 insulation Methods 0.000 claims description 14
- 239000012211 strain insulator Substances 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The present invention relates to a kind of charged for replacement UHV transmission line single chip tension insulator methods, the described method comprises the following steps：Livewire work personnel carry out potential transfer and form equipotential with electrical body；Livewire work personnel install whole string tightening device；Livewire work personnel install monolithic tightening device；Livewire work personnel replace insulator to be changed.This method is used cooperatively by installing two sets of independent tension transfer systems of bunch of insulator tightening device and monolithic insulator tightening device, realizes that safety carries out the upkeep operation of UHV transmission line charged for replacement single chip tension insulator.
Description
Technical field：
The present invention relates to a kind of methods of replacing insulator under electrified, are more particularly to a kind of charged for replacement extra-high voltage transmission line
Road single chip tension insulator method.
Background technology：
In the power system, ultra-high-tension power transmission line will appear the case where damaged insulator or deterioration in the process of running, and
The inevitable requirement that replacement is the maintenance of transmission line of electricity O＆M is carried out to the insulator of abnormal condition by the way of livewire work.
It is more general that the electric transmission line hot-line of current 500 kilovolts or less voltage class replaces the development of strain insulator project
Time, the tools such as generally use closed fixture complete the replacement of monolithic insulator.In recent years, 1000 kilovolts and direct current ± 800,000 are exchanged
Volt UHV Transmission Engineering is built up in succession to put into operation, and extra high voltage line mechanical load is big, insulator chain is long, transmits electricity according to 500 kilovolts
The method of circuit charged for replacement monolithic insulator is difficult to complete to replace extra high voltage line insulator.Accordingly, it is desirable to provide
One kind being suitable for UHV transmission line charged for replacement single chip tension insulator method to overcome the above problem.
Invention content：
The object of the present invention is to provide a kind of charged for replacement UHV transmission line single chip tension insulator method, this method
Solve the problems, such as how UHV transmission line safely changes single chip tension insulator.
To achieve the above object, the present invention uses following technical scheme：A kind of charged for replacement UHV transmission line monolithic
Strain insulator method, the described method comprises the following steps：
(1) livewire work personnel carry out potential transfer and form equipotential with electrical body；
(2) livewire work personnel install whole string tightening device；
(3) livewire work personnel install monolithic tightening device；
(4) livewire work personnel replace insulator to be changed.
A kind of charged for replacement UHV transmission line single chip tension insulator method provided by the invention, the step (1)
Middle livewire work personnel in the case where meeting extra-high voltage electrified job safety distance and combinational gap, using across two short three side
Formula is marched to split conductor end at electrical body two panels insulator along insulator..
A kind of charged for replacement UHV transmission line single chip tension insulator method provided by the invention, it is described short by three across two
Mode be that the livewire work personnel face cross line direction, moved to high-pressure side into current potential, bipod across two panels insulator,
Three insulators of short circuit.
Another a kind of preferred charged for replacement UHV transmission line single chip tension insulator method provided by the invention, institute
State livewire work personnel needs to step at strain insulator-string hanging point of the transmission tower to shaft tower crosspiece described in carrying out before two short three mode,
Detect the normal insulator the piece number of strain insulator string.
Another a kind of preferred charged for replacement UHV transmission line single chip tension insulator method provided by the invention, institute
It states strain insulator string one end and is connect with the crosspiece by adjusting gold utensil, the other end is connected by connection gold utensil and split conductor
It connects.
Another a kind of preferred charged for replacement UHV transmission line single chip tension insulator method provided by the invention, institute
Stating livewire work personnel needs to dress a full set of extra-high voltage private mask clothes before stepping on transmission tower.
Another a kind of preferred charged for replacement UHV transmission line single chip tension insulator method provided by the invention, institute
It includes sequentially connected be arranged in the insulator chain side for being arranged in institute to state the whole string tightening device in step (1-2)
It states the cross arm end fixture A on cross-arm, hydraulic pressure tightening device A, combined insulation pull rod A and leads described in being arranged in connection gold utensil
Thread end fixture A；And the cross-arm for being arranged on the cross-arm of the sequentially connected setting insulator chain other side
End chucking appliance B, hydraulic pressure tightening device B, combined insulation pull rod B and the wire termination fixture B being arranged in connection gold utensil.
Another a kind of preferred charged for replacement UHV transmission line single chip tension insulator method provided by the invention,
The equipotential livewire work personnel conducting wire end chucking appliance A and wire termination fixture B；In the electrification of cross-arm side ground potential
Operating personnel installs cross arm end fixture A and cross arm end fixture B；In the equipotential livewire work personnel, in cross-arm side
The livewire work personnel of ground potential and ground electrician coordinate installation hydraulic pressure tightening device A, hydraulic pressure tightening device B, combined insulation to draw
Bar A and combined insulation pull rod B.
Another a kind of preferred charged for replacement UHV transmission line single chip tension insulator method provided by the invention, institute
State the monolithic tightening device in step (1-3) be included in before insulator to be changed card after a piece of insulator outside setting closed fixture,
Block before a piece of insulator outside setting closed fixture after insulator to be changed, be arranged in the insulator chain side, for connecting
The tightening lead screw A of described preceding card one end and corresponding rear card one end is with setting in the insulator chain other side, for connecting
The tightening lead screw B of the card other end and the corresponding rear card other end before stating.
Another a kind of preferred charged for replacement UHV transmission line single chip tension insulator method provided by the invention,
The equipotential livewire work personnel are along being serial at insulator to be changed, after installing the monolithic tightening device, by cross-arm
It is advance to the progress of whole string tightening device that the livewire work personnel of side ground potential operate hydraulic pressure tightening device A and hydraulic pressure tightening device B
Tightly, the tension that insulator chain is born is made to be transferred on whole string tightening device；Tightening silk is operated in equipotential livewire work personnel
Bar A and tightening lead screw B, makes Insulator's tension to be changed be transferred to monolithic tightening device, then replaces insulator to be changed；Another mistake is to behaviour
Make to restore insulator chain stress, removes operation Work tool.
With immediate prior art ratio, the present invention, which provides technical solution, has following excellent effect
1, the present invention can realize UHV transmission line live-line replacing strain using whole string and two sets of tightening devices of monolithic
The service work of monolithic insulator；
2, hydraulic test can be placed on cross-arm in whole string tightening device of the invention, reduce hydraulic test to insulator
The short circuit length of string, ensure that live-working safety distance；
3, the effective back-up protection of whole string tightening device of the invention as monolithic tightening device, improves field operation
Safety；
4, the present invention solves the problems, such as how UHV transmission line safely changes single chip tension insulator；
5, method of the invention is that UHV transmission line live-line replacing insulator contributes.
Description of the drawings
Fig. 1 is charged for replacement UHV transmission line single chip tension insulator method schematic diagram of the present invention；
Wherein, 1- cross arm ends fixture A, 2- cross arm end fixtures B, 3- hydraulic pressure tightening devices A, 4- hydraulic pressure tightening device B,
5- blocks after adjusting gold utensil A, 6- adjusting gold utensil B, 7-, blocks before 8-, and 9- tightens lead screw A, 10- and tightens lead screw B, 11- target insulator,
12- combined insulation pull rod A, 13- combined insulation pull rod B, 14- wire termination fixture A, 15- wire termination fixture B, 16- connection gold
Tool, 17- split conductors, 18- strain insulator strings, 19- shaft tower crosspieces.
Specific implementation mode
With reference to embodiment, the invention will be described in further detail.
Embodiment 1：
As shown in Figure 1, a kind of charged for replacement UHV transmission line single chip tension insulator method of the invention of this example, described
Method includes the following steps：
(1) livewire work personnel carry out potential transfer and form equipotential with electrical body；
(2) livewire work personnel install whole string tightening device；
(3) livewire work personnel install monolithic tightening device；
(4) livewire work personnel replace insulator to be changed.
Livewire work personnel are the case where meeting extra-high voltage electrified job safety distance and combinational gap in the step (1)
Under, using being marched at electrical body two panels insulator (about to 17 end of split conductor along insulator by the way of two short three
0.4m)。.
The mode across two short three is that the livewire work personnel face cross line direction, is moved to high-pressure side into electricity
Position, bipod is across two panels insulator, three insulators of short circuit.
The livewire work personnel need to step on transmission tower to shaft tower crosspiece 19 described in carrying out before two short three mode
At strain insulator-string hanging point, 18 normal insulator the piece number of strain insulator string is detected.
18 one end of the strain insulator string is connect by adjusting gold utensil with the crosspiece, and the other end passes through connection gold utensil
16 connect with split conductor 17.
The livewire work personnel need to dress a full set of extra-high voltage private mask clothes before stepping on transmission tower.
Whole string tightening device in the step (1-2) includes the sequentially connected use being arranged in the insulator chain side
It is being connected in cross arm end fixture A1, hydraulic pressure tightening device A3, combined insulation pull rod A12 and the setting being arranged on the cross-arm
The wire termination fixture A14 on gold utensil 16；And the sequentially connected setting insulator chain other side for being arranged
Cross arm end fixture B2, hydraulic pressure tightening device B4, combined insulation pull rod B13 and setting on the cross-arm is in connection gold utensil 16
On wire termination fixture B15.
In the equipotential livewire work personnel conducting wire end chucking appliance A14 and wire termination fixture B15；In cross-arm
The livewire work personnel of side ground potential install cross arm end fixture A1 and cross arm end fixture B2；Make in the equipotential electrification
Industry personnel coordinate installation hydraulic pressure tightening device A3, hydraulic pressure tightening in the livewire work personnel of cross-arm side ground potential and ground electrician
Device B4, combined insulation pull rod A12 and combined insulation pull rod B13.
A piece of insulator outside setting is closed before monolithic tightening device in the step (1-3) is included in insulator to be changed
Block 7 after formula card, blocks 8 before a piece of insulator outside setting closed fixture after target insulator 11 to be changed, is arranged in the insulation
Substring side, the tightening lead screw A9 for connecting 7 one end of 8 one end of the preceding card and corresponding rear card and setting are in the insulator
The string other side, the tightening lead screw B10 for connecting 7 other ends of 8 other ends of the preceding card and corresponding rear card.
In the equipotential livewire work personnel along being serial at target insulator 11 to be changed, the monolithic tightening is installed
After device, by operating hydraulic pressure tightening device A3 and hydraulic pressure tightening device B4 to whole string in the livewire work personnel of cross-arm side ground potential
Tightening device carries out pre-tightening, and the tension that insulator chain is born is made to be transferred on whole string tightening device；Make in equipotential electrification
Industry personnel operate tightening lead screw A9 and tightening lead screw B10, so that Insulator's tension to be changed is transferred to monolithic tightening device, then replace
Target insulator 11；Another mistake removes operation Work tool to operation recovery insulator chain stress.
Whole string and two sets of tightening devices of monolithic are used cooperatively, and whole string devices play the role of primary load bearing, while as mono-sheet
The back-up protection set；The hydraulic test of whole string devices is mounted on cross-arm side, avoids short circuit insulator.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, institute
The those of ordinary skill in category field with reference to above-described embodiment although should understand that：It still can be to the specific implementation mode of the present invention
It is modified or replaced equivalently, these are without departing from any modification of spirit and scope of the invention or equivalent replacement, in Shen
Within the claims of the present invention that please be pending.
Claims (6)
1. a kind of charged for replacement UHV transmission line single chip tension insulator method, it is characterised in that：The method includes with
Lower step：
(1) livewire work personnel carry out potential transfer and form equipotential with electrical body；
(2) livewire work personnel install whole string tightening device；
(3) livewire work personnel install monolithic tightening device；
(4) livewire work personnel replace insulator to be changed；
This method is by installing two sets of independent tension transfer systems of bunch of insulator tightening device and monolithic insulator tightening device
It is used cooperatively, realizes that safety carries out the upkeep operation of UHV transmission line charged for replacement single chip tension insulator；
The present invention can realize that UHV transmission line live-line replacing strain monolithic is exhausted using whole string and two sets of tightening devices of monolithic
The service work of edge；
Livewire work personnel are in the case where meeting extra-high voltage electrified job safety distance and combinational gap in the step (1),
Using being marched at electrical body two panels insulator to split conductor end along insulator by the way of two short three；
The mode across two short three is that the livewire work personnel face cross line direction, is moved to high-pressure side into current potential, two
Foot is across two panels insulator, three insulators of short circuit；
The livewire work personnel need to step on transmission tower to the strain insulator-string of cross arm of tower described in carrying out before two short three mode
At hanging point, the normal insulator the piece number of strain insulator string is detected；Whole string tightening device in the step (1) includes connecting successively
What is connect is arranged cross arm end fixture A, the hydraulic pressure tightening device for being arranged on the cross-arm in the insulator chain side
A, the combined insulation pull rod A and wire termination fixture A being arranged in connection gold utensil；And sequentially connected setting institute
State the cross arm end fixture B, hydraulic pressure tightening device B, combined insulation for being arranged on the cross-arm of the insulator chain other side
The pull rod B and wire termination fixture B being arranged in connection gold utensil.
2. a kind of charged for replacement UHV transmission line single chip tension insulator method as described in claim 1, feature exist
In：Described strain insulator string one end is connect by adjusting gold utensil with the cross-arm, and the other end passes through connection gold utensil and division
Conducting wire connects.
3. a kind of charged for replacement UHV transmission line single chip tension insulator method as described in claim 1, feature exist
In：The livewire work personnel need to dress a full set of extra-high voltage private mask clothes before stepping on transmission tower.
4. a kind of charged for replacement UHV transmission line single chip tension insulator method as described in claim 1, feature exist
In：In the equipotential livewire work personnel conducting wire end chucking appliance A and wire termination fixture B；In cross-arm side ground potential
Livewire work personnel install cross arm end fixture A and cross arm end fixture B；The equipotential livewire work personnel,
The livewire work personnel of cross-arm side ground potential and ground electrician coordinate installation hydraulic pressure tightening device A, hydraulic pressure tightening device B, combination
Insulated tension pole A and combined insulation pull rod B.
5. a kind of charged for replacement UHV transmission line single chip tension insulator method as claimed in claim 4, feature exist
In：Monolithic tightening device in the step (3) is included in before insulator to be changed after a piece of insulator outside setting closed fixture
Card blocks before a piece of insulator outside setting closed fixture after insulator to be changed, is arranged in the insulator chain side, for connecting
It meets the tightening lead screw A of described preceding card one end and corresponding rear card one end and is arranged in the insulator chain other side, for connecting
The tightening lead screw B of the preceding card other end and the corresponding rear card other end.
6. a kind of charged for replacement UHV transmission line single chip tension insulator method as claimed in claim 5, feature exist
In：In the equipotential livewire work personnel along being serial at insulator to be changed, after the monolithic tightening device is installed, by
The livewire work personnel of cross-arm side ground potential operate hydraulic pressure tightening device A and hydraulic pressure tightening device B and are carried out to whole string tightening device
Pre-tightening makes the tension that insulator chain is born be transferred on whole string tightening device；It operates and receives in equipotential livewire work personnel
Tight lead screw A and tightening lead screw B, makes Insulator's tension to be changed be transferred to monolithic tightening device, then replaces insulator to be changed；Another mistake
To operation recovery insulator chain stress, operation Work tool is removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410534459.XA CN105576550B (en) | 2014-10-11 | 2014-10-11 | A kind of charged for replacement UHV transmission line single chip tension insulator method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410534459.XA CN105576550B (en) | 2014-10-11 | 2014-10-11 | A kind of charged for replacement UHV transmission line single chip tension insulator method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105576550A CN105576550A (en) | 2016-05-11 |
| CN105576550B true CN105576550B (en) | 2018-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410534459.XA Active CN105576550B (en) | 2014-10-11 | 2014-10-11 | A kind of charged for replacement UHV transmission line single chip tension insulator method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451214B (en) * | 2016-10-28 | 2018-01-12 | 国网浙江省电力公司金华供电公司 | A kind of combination tool of charged for replacement extra-high voltage same tower double circuit strain insulator |
| CN110265907B (en) * | 2019-07-01 | 2021-05-11 | 常州博瑞电力自动化设备有限公司 | Flexible straight valve tower interlayer insulator overhauling device |
| CN110531858A (en) * | 2019-08-30 | 2019-12-03 | 武汉科迪奥电力科技有限公司 | Enter equipotential simulator, system and method across two short three methods |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2665882Y (en) * | 2003-10-20 | 2004-12-22 | 沈鸿年 | Single sheet rimless replacing device for insulator |
| CN201126942Y (en) * | 2007-12-18 | 2008-10-01 | 西北电网有限公司 | Chucking tools clamping apparatus for altering middle single-slice insulator for 750kV circuit with electrification |
| CN201699352U (en) * | 2010-06-08 | 2011-01-05 | 云南电网公司曲靖供电局 | Tool for electrified replacing linear monolithic insulator |
| CN103606854A (en) * | 2013-11-27 | 2014-02-26 | 国家电网公司 | Operating method for replacing tension insulator on super and ultra-high voltage direct current transmission line in electrified mode |
| CN103618251A (en) * | 2013-11-27 | 2014-03-05 | 国家电网公司 | Technology for electrified overhaul of +-800kV ultrahigh voltage direct-current transmission line |
| CN203553740U (en) * | 2013-10-16 | 2014-04-16 | 国家电网公司 | A replacing apparatus for a 800kV extra-high voltage direct current transmission line single insulator |
-
2014
- 2014-10-11 CN CN201410534459.XA patent/CN105576550B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2665882Y (en) * | 2003-10-20 | 2004-12-22 | 沈鸿年 | Single sheet rimless replacing device for insulator |
| CN201126942Y (en) * | 2007-12-18 | 2008-10-01 | 西北电网有限公司 | Chucking tools clamping apparatus for altering middle single-slice insulator for 750kV circuit with electrification |
| CN201699352U (en) * | 2010-06-08 | 2011-01-05 | 云南电网公司曲靖供电局 | Tool for electrified replacing linear monolithic insulator |
| CN203553740U (en) * | 2013-10-16 | 2014-04-16 | 国家电网公司 | A replacing apparatus for a 800kV extra-high voltage direct current transmission line single insulator |
| CN103606854A (en) * | 2013-11-27 | 2014-02-26 | 国家电网公司 | Operating method for replacing tension insulator on super and ultra-high voltage direct current transmission line in electrified mode |
| CN103618251A (en) * | 2013-11-27 | 2014-03-05 | 国家电网公司 | Technology for electrified overhaul of +-800kV ultrahigh voltage direct-current transmission line |
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