CN105514862A - Live-line replacement method and device for jumper suspension insulator string of common-tower and multi-circuit power transmission line - Google Patents
Live-line replacement method and device for jumper suspension insulator string of common-tower and multi-circuit power transmission line Download PDFInfo
- Publication number
- CN105514862A CN105514862A CN201510877918.9A CN201510877918A CN105514862A CN 105514862 A CN105514862 A CN 105514862A CN 201510877918 A CN201510877918 A CN 201510877918A CN 105514862 A CN105514862 A CN 105514862A
- Authority
- CN
- China
- Prior art keywords
- insulator string
- insulation
- movable clamp
- transmission line
- shaped plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 77
- 239000000725 suspension Substances 0.000 title claims abstract description 38
- 230000005540 biological transmission Effects 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000009413 insulation Methods 0.000 claims description 53
- 238000003780 insertion Methods 0.000 claims description 22
- 230000037431 insertion Effects 0.000 claims description 22
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 description 4
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- Electric Cable Installation (AREA)
- Insulators (AREA)
Abstract
The invention relates to a live-line replacement method and device for the jumper suspension insulator string of a common-tower and multi-circuit power transmission line. By means of an insulated pull rope, an insulated plug board is suspended at a working point. By means of an insulated operation rod, the insulated plug board is clamped between two insulators. Through pulling the insulated pull rope, an insulator string is locked inside a U-shaped groove in the insulated plug board by a movable clamp board (6). After that, the original insulator string is removed. The insulated plug board is in the form of a U-shaped board (4). The two arms of the U-shaped board (4) are respectively provided with one rotatable movable clamp board (6). One end of a spring (9) is connected with the rotatable movable clamp board (6), and the other end of the spring (9) is connected with the U-shaped board (4). The U-shaped board (4) is further provided with a fixed pulley (8). Each movable clamp board (6) is provided with a pull hook part. By means of the device, suspension strings on the jumper of a common-tower and multi-circuit power transmission line can be safely and effectively replaced. Therefore, the potential safety problem that might occur due to the adoption of a middle-phase cross arm and a lower-phase cross arm by an operator can be avoided.
Description
Technical field
The invention belongs to transmission line operation maintenance technical field, be specifically related to a kind of charged for replacement method and device of 110 ~ 220kV multiple-loop line transmission line jumper suspension insulator string.
Background technology
Multiple-loop line transmission line can not only improve unit are transmission capacity, comprehensive cost and line corridor demand can be reduced again, there is obvious economic benefit and social benefit, therefore carry out multiple-loop line hot line maintenance and lifting power supply reliability is seemed particularly important.
But multiple-loop line transmission line is more compact compared with common line, cause the middle phase of transmission line, lower phase and upper layer circuit safe distance comparatively little.To 110 ~ 220kV multiple-loop line strain tower of transmission line, jumper suspension insulator string is arranged vertically, and operating personnel can reach phase cross arm end in upper layer circuit, carries out the charged for replacement operation of suspension insulator; And upper phase conductor is all less with the safe distance of middle phase cross-arm, middle phase conductor and lower phase cross-arm, cause operating personnel to be difficult to phase in safety, lower phase cross-arm, thus be difficult to safety, effectively carry out the operation of jumper suspension replacing insulator string.
Therefore be necessary the method and the device that propose a kind of charged for replacement 110 ~ 220kV multiple-loop line power transmission line jumper suspension insulator string, thus can safely, effectively carry out the operation of jumper suspension replacing insulator string.
Summary of the invention
The invention provides a kind of method and device of charged for replacement 110 ~ 220kV multiple-loop line transmission line jumper suspension insulator string, thus can safely, effectively carry out the operation of jumper suspension replacing insulator string.
Technical scheme of the present invention is: a kind of multiple-loop line transmission line jumper suspension insulator string charged for replacement method, comprising:
By the step that setting place suspension insulator and wire depart from;
The step of installing insulating plate, utilizes insulation stay cord to suspend insulation insertion plate to setting place in midair, utilizes insulating bar to be stuck between two panels insulator by insulation insertion plate, pulls insulation stay cord to make movable clamp 6 be locked in the U-type groove of insulation insertion plate by insulator string;
Take off the step of old insulator string, utilize insulating bar that insulator string and cross-arm are departed from, thus old insulator string is taken off;
Described insulation insertion plate is one block of U-shaped plate 4, U-type groove is used for blocking insulator string, U-shaped plate 4 two-arm is respectively provided with a rotatable movable clamp 6, spring 9 one end is connected on movable clamp 6, and one end is connected on U-shaped plate 4, and U-shaped plate 4 is also provided with fixed pulley 8, movable clamp 6 establish hook to draw portion, insulation stay cord one end butt hook is drawn portion, and passes from fixed pulley 8, pull movable clamp 6 when insulating stay cord to rotate and U-type groove mouth is blocked a part.
Further, a clasp 5 respectively established by U-shaped plate 4 four jiaos, tied up to by insulation stay cord on clasp 5, utilizes insulation stay cord by insulation insertion plate suspention to setting place.
Further, the described hook portion of drawing is draw ring 7, and draw ring 7 and spring 9 are arranged at movable clamp 6 rotating shaft both sides respectively, utilize insulating bar to catch on draw ring 7 and are stuck between two panels insulator by insulation insertion plate.
Further, described step suspension insulator and wire departed from, catches on the wire at setting place, and upwards pulls, wire backup protection rope is tightened up by wire backup protection rope front end insulating hanger; In the position of the level mutually of the wire with setting place, utilize insulating bar that suspension insulator and wire are departed from.
Further, first insulation coaster, wire backup protection rope and insulation stay cord are arranged on upper phase cross-arm place.
Further, insulation insertion plate and insulating bar is adopted to install new insulator string.
A kind of multiple-loop line transmission line jumper suspension insulator string live replacing device provided by the invention, it is one block of U-shaped plate 4, U-type groove is used for blocking insulator string, U-shaped plate 4 two-arm is respectively provided with a rotatable movable clamp 6, spring 9 one end is connected on movable clamp 6, one end is connected on U-shaped plate 4, U-shaped plate 4 is also provided with fixed pulley 8, movable clamp 6 establish hook to draw portion, insulation stay cord one end butt hook is drawn portion, and pass from fixed pulley 8, pull movable clamp 6 when insulating stay cord to rotate and U-type groove mouth is blocked a part.
Further, a clasp 5 respectively established by U-shaped plate 4 four jiaos.
Further, the described hook portion of drawing is draw ring 7.
Further, fixed pulley 8 is arranged perpendicular to U-shaped plate 4.
The invention has the beneficial effects as follows: the present invention can change multiple-loop line transmission line jumper suspension insulator string safely, effectively, avoid the safety problem that operating personnel may be caused by middle phase and lower phase cross-arm, for in multiple-loop line transmission line, the hotline maintenance of phase, lower phase and upper layer circuit jumper suspension insulator string provides new method, improve 110 ~ 220kV with tower many strain tower of transmission lines hotline maintenance level.
Accompanying drawing explanation
Fig. 1 is 110 ~ 220kV multiple-loop line transmission line front view.
Fig. 2 is position 3 place's insulator string and wire partial enlarged drawing.
Fig. 3 is the insulation insertion plate schematic diagram of the present invention's embodiment.
Wherein, U-shaped plate 4, clasp 5, movable clamp 6, draw ring 7, fixed pulley 8, spring 9.
Embodiment
During the present invention specifically implements, insulation insertion plate is designed, designed, and other used tools (as rope, backup protection rope, tackle pulley, insulating bar are transmitted in insulation coaster, insulation) are the existing instrument of this area, commercially available.Except the use of insulation insertion plate, the using method of other instruments is well known to the skilled person.
Following position 1,3 lays respectively at phase cross-arm, lower phase cross-arm, and position 1 is positioned at directly over position 3.
An embodiment of the present invention's insulation insertion plate used, as Fig. 3, it comprises one piece of U-shaped plate 4(and defines the side, inside that U-type groove is positioned at U-shaped plate), U-type groove is used for blocking insulator string, and a clasp 5 respectively established by U-shaped plate 4 four jiaos.U-shaped plate 4 two-arm end is respectively provided with a movable clamp 6, and the relatively U-shaped plate 4 of movable clamp 6 is rotatable.With U-type groove aligned inside inside movable clamp 6, the contiguous U-shaped plate 4 two-arm end of movable clamp 6 is provided with draw ring 7.Spring 9 one end is connected to the movable outside side of clamp 6, and one end is connected to the outside side of U-shaped plate 4 two-arm.It is vertical with U-shaped plate 4 that the outside side of U-shaped plate 4 two-arm is fixed with fixed pulley 8().
With reference to figure 1 ~ 2, the present invention is used for charged for replacement 110 ~ 220kV multiple-loop line transmission line jumper suspension insulator string (for phase jumper suspension insulator string under charged for replacement upper layer circuit), and its concrete steps are as follows:
(1) rope is transmitted in installing insulating coaster, insulation
No. 1 electrician carries insulation coaster, wire backup protection rope, insulation are transmitted rope (insulation stay cord) and stepped on tower, and insulation coaster is arranged on position 1.
(2) conducting wire backup protection rope
No. 1 electrician puts down wire backup protection rope in position 1, and utilizes wire backup protection rope front end insulating hanger to catch on the wire that insulator string place will be changed in position 3, and upwards pulls, and wire backup protection rope is tightened up.
(3) installing insulating plate
No. 2 electricians carry insulating bar and step on position 2 place (be positioned at lower phase cross-arm below) of tower to the wire level with replacing insulator string;
No. 2 electricians utilize insulating bar to take out last insulator place (the counting first from top to bottom) spring catch of suspension insulator, and insulator string and wire are departed from, now suspension insulator is unsettled;
Thoroughly do away with edge stay cord by one and hitch two clasps 5 in right side in figure and around on insulation coaster; Another is thoroughly done away with edge stay cord pass from two fixed pulleys 8, and around on insulation coaster, two ends tie up on two draw rings 7 respectively; Ground utilizes insulation tackle pulley by insulation insertion plate suspention to position 3 place;
No. 2 electricians utilize insulating bar to catch on draw ring 7 to be stuck in by insulation insertion plate between the 1st and the 2nd (counting from the top down) insulator; Pull insulation stay cord that movable clamp 6 is inwardly rotated away from one end of U-shaped plate 4 two-arm end, insulator is locked in the U-type groove of insulation insertion plate.
(4) old insulator string is taken off
Utilize insulating bar to take out cross-arm side the 1st insulator spring pin, insulator string and cross-arm are departed from;
Ground electrician pulls insulation stay cord to make insulation insertion plate buckle after death, and ground electrician controls insulation and transmits rope, coordinates No. 2 electricians to be unsnaped by old insulator string with insulating bar and is delivered on ground.
(5) new insulator string is changed
Ground electrician controls insulation and transmits rope new insulator is delivered to former insulator position, and the position of attentional manipulation well upper and lower two insulator string strings in the air, prevent mutual collision;
No. 2 electricians utilize insulating bar to install new insulator string cross-arm side spring catch;
Ground electrician's lifting lead wire, No. 2 electricians recover connecting and recovering spring catch of side of wire insulator string bulb and bowl head with insulating bar.
Said method is also applicable to charged for replacement upper layer circuit middle phase jumping wire suspension insulator, and now position 1 should be positioned at ground wire cross arm end.Lower floor's line jumpers suspension insulator also can adopt said method to carry out charged for replacement.The multiple-loop line transmission line tangent tower insulator less for some load is also suitable for.
Claims (10)
1. a multiple-loop line transmission line jumper suspension insulator string charged for replacement method, is characterized in that comprising:
By the step that setting place suspension insulator and wire depart from;
The step of installing insulating plate, utilize insulation stay cord by insulation insertion plate suspention to setting place, utilize insulating bar to be stuck between two panels insulator by insulation insertion plate, pull insulation stay cord to make movable clamp (6) be locked in the U-type groove of insulation insertion plate by insulator string;
Take off the step of old insulator string, utilize insulating bar that insulator string and cross-arm are departed from, thus old insulator string is taken off;
Described insulation insertion plate is one piece of U-shaped plate (4), U-type groove is used for blocking insulator string, U-shaped plate (4) two-arm is respectively provided with a rotatable movable clamp (6), spring (9) one end is connected on movable clamp (6), one end is connected on U-shaped plate (4), U-shaped plate (4) is also provided with fixed pulley (8), movable clamp (6) establish hook to draw portion, insulation stay cord one end butt hook is drawn portion, and from fixed pulley (8) through, when pulling insulation stay cord, U-type groove mouth is blocked a part by movable clamp (6) rotation.
2. multiple-loop line transmission line jumper suspension insulator string charged for replacement method according to claim 1, it is characterized in that a clasp (5) is respectively established in U-shaped plate (4) corner, insulation stay cord is tied up on clasp (5), utilize insulation stay cord by insulation insertion plate suspention to setting place.
3. multiple-loop line transmission line jumper suspension insulator string charged for replacement method according to claim 1, it is characterized in that the described hook portion of drawing is draw ring (7), draw ring (7) and spring (9) are arranged at movable clamp (6) rotating shaft both sides respectively, utilize insulating bar to catch on draw ring (7) and are stuck between two panels insulator by insulation insertion plate.
4. multiple-loop line transmission line jumper suspension insulator string charged for replacement method according to claim 1, it is characterized in that described step suspension insulator and wire departed from, wire backup protection rope front end insulating hanger is caught on the wire at setting place, and upwards pull, wire backup protection rope is tightened up; In the position of the level mutually of the wire with setting place, utilize insulating bar that suspension insulator and wire are departed from.
5. the multiple-loop line transmission line jumper suspension insulator string charged for replacement method according to claim 1 or 4, is characterized in that first insulation coaster, wire backup protection rope and insulation stay cord being arranged on upper phase cross-arm place.
6. multiple-loop line transmission line jumper suspension insulator string charged for replacement method according to claim 1, is characterized in that adopting insulation insertion plate and insulating bar to install new insulator string.
7. a multiple-loop line transmission line jumper suspension insulator string live replacing device, it is characterized in that it is one piece of U-shaped plate (4), U-type groove is used for blocking insulator string, U-shaped plate (4) two-arm is respectively provided with a rotatable movable clamp (6), spring (9) one end is connected on movable clamp (6), one end is connected on U-shaped plate (4), U-shaped plate (4) is also provided with fixed pulley (8), movable clamp (6) establish hook to draw portion, insulation stay cord one end butt hook is drawn portion, and from fixed pulley (8) through, pull movable clamp (6) rotation when insulating stay cord that U-type groove mouth is blocked a part.
8. multiple-loop line transmission line jumper suspension insulator string live replacing device according to claim 7, is characterized in that a clasp (5) is respectively established in U-shaped plate (4) corner.
9. multiple-loop line transmission line jumper suspension insulator string live replacing device according to claim 7, is characterized in that the described hook portion of drawing is draw ring (7).
10. multiple-loop line transmission line jumper suspension insulator string live replacing device according to claim 7, is characterized in that fixed pulley (8) is arranged perpendicular to U-shaped plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877918.9A CN105514862B (en) | 2015-12-04 | 2015-12-04 | Multiple-loop line transmission line of electricity jumper suspension insulator chain charged for replacement method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877918.9A CN105514862B (en) | 2015-12-04 | 2015-12-04 | Multiple-loop line transmission line of electricity jumper suspension insulator chain charged for replacement method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105514862A true CN105514862A (en) | 2016-04-20 |
| CN105514862B CN105514862B (en) | 2017-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510877918.9A Active CN105514862B (en) | 2015-12-04 | 2015-12-04 | Multiple-loop line transmission line of electricity jumper suspension insulator chain charged for replacement method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105514862B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958370A (en) * | 2016-05-26 | 2016-09-21 | 国家电网公司 | Single glass insulator transmission hook |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000059936A (en) * | 1998-08-10 | 2000-02-25 | Chubu Electric Power Co Inc | Insulator replacing device for two-string strain- insulator apparatus |
| CN201118144Y (en) * | 2007-10-30 | 2008-09-17 | 济南供电公司 | 500 kv tension-resistant insulator serial type replacer |
| CN102882153A (en) * | 2012-08-30 | 2013-01-16 | 国家电网公司 | Multi-return tower middle-phase insulator string replacement method for electrified replacement circuit |
| CN205159920U (en) * | 2015-12-04 | 2016-04-13 | 国家电网公司 | Insulator chain is dangled with insulating picture peg with many times transmission line wire jumpers in tower to electrified change |
-
2015
- 2015-12-04 CN CN201510877918.9A patent/CN105514862B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000059936A (en) * | 1998-08-10 | 2000-02-25 | Chubu Electric Power Co Inc | Insulator replacing device for two-string strain- insulator apparatus |
| CN201118144Y (en) * | 2007-10-30 | 2008-09-17 | 济南供电公司 | 500 kv tension-resistant insulator serial type replacer |
| CN102882153A (en) * | 2012-08-30 | 2013-01-16 | 国家电网公司 | Multi-return tower middle-phase insulator string replacement method for electrified replacement circuit |
| CN205159920U (en) * | 2015-12-04 | 2016-04-13 | 国家电网公司 | Insulator chain is dangled with insulating picture peg with many times transmission line wire jumpers in tower to electrified change |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958370A (en) * | 2016-05-26 | 2016-09-21 | 国家电网公司 | Single glass insulator transmission hook |
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| Publication number | Publication date |
|---|---|
| CN105514862B (en) | 2017-03-29 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100031 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Co-patentee after: STATE GRID HUNAN ELECTRIC POWER Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Co-patentee after: THE LIVE WORKING CENTER OF HUNAN ELECTRIC POWER Corp. Co-patentee after: HUNAN PEACE PROSPERITY ELECTRIC Ltd. Address before: 100031 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Co-patentee before: STATE GRID HUNAN ELECTRIC POWER Co. Patentee before: State Grid Corporation of China Co-patentee before: THE LIVE WORKING CENTER OF HUNAN ELECTRIC POWER Corp. Co-patentee before: HUNAN PEACE PROSPERITY ELECTRIC Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190321 Address after: 410004 Xiangchaoyuan Experimental Building, 339 Xinshaodong Road, Tianxin District, Changsha City, Hunan Province Co-patentee after: STATE GRID HUNAN ELECTRIC POWER Co.,Ltd. Patentee after: STATE GRID HUNAN ELECTRIC POWER COMPANY LIMITED, MAINTENANCE Co. Co-patentee after: STATE GRID CORPORATION OF CHINA Address before: 100031 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Co-patentee before: STATE GRID HUNAN ELECTRIC POWER Co.,Ltd. Patentee before: State Grid Corporation of China Co-patentee before: THE LIVE WORKING CENTER OF HUNAN ELECTRIC POWER Corp. Co-patentee before: HUNAN PEACE PROSPERITY ELECTRIC Ltd. |