CN205646747U - 800 kilovolt direct current line gap installation device - Google Patents
800 kilovolt direct current line gap installation device Download PDFInfo
- Publication number
- CN205646747U CN205646747U CN201620245409.4U CN201620245409U CN205646747U CN 205646747 U CN205646747 U CN 205646747U CN 201620245409 U CN201620245409 U CN 201620245409U CN 205646747 U CN205646747 U CN 205646747U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- insulator
- yoke plate
- leakage conductor
- kilovolts
- 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.)
- Withdrawn - After Issue
Links
- 238000009434 installation Methods 0.000 title abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 46
- 239000012212 insulator Substances 0.000 claims abstract description 41
- 125000006850 spacer group Chemical group 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 9
- 238000012876 topography Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 14
- 230000005611 electricity Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 3
- 208000025274 Lightning injury Diseases 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Insulators (AREA)
Abstract
The utility model discloses a 800 kilovolt direct current line gap installation device, hang yoke plate (5), connecting rod (4), insulating pillar (7) and conductor spacing stick (1) including the insulator, the insulator hangs and is equipped with a n mounting hole (6) on yoke plate (5), n >= 3, wherein two mounting holes are used for installing two the insulator chain who is parallel to each other (2), and another mounting hole is used for erection joint pole (4), connecting rod (4) are L shape stereoplasm connecting rod, line gap body (3) one end is installed on the base, and the base passes through connecting rod (4) and installs to insulator chain and hang yoke plate (5), be equipped with insulating pillar (7) between line gap body (3) one end and the base, the other end of line gap body (3) is the high -pressure side, and the high -pressure side is installed on conductor spacing stick (1), line gap body (3) are parallel with insulator chain (2) of installing on the insulator hangs the yoke plate. This installation device is not restricted by factors such as topography, external condition, and installation device is simple, and installation cost is low, the reliability is high.
Description
Technical field
This utility model relates to transmission line of electricity lightning protection field, is specifically related to the erecting device of one ± 800 kilovolt DC line spark gap.
Background technology
Ultra-high-tension power transmission line operating experience shows, thunderbolt is the main cause causing transmission line of electricity to trip.In State Grid Corporation of China's transmission line of electricity 66 kilovolts and ratings above transmission line of electricity trip accident, lightning stroke trip accounts for more than the 40% of tripping operation total degree.Along with the raising of electric pressure, ground level is increased by ± 800 kilovolt HVDC transmission line shaft towers therewith, and average height is more than 60 meters, makes ± 800 kilovolt HVDC transmission line lightning stroke trip risks increases.Devices such as reducing earth resistance, erection installation of dual lightning wires, reduction earth-wire protection angle is generally used to reduce tripping rate with lightning strike in engineering.Research shows, strong at lightening activity or soil resistivity is high, reduce the inconvenient track section of earth resistance install leakage conductor, be reduce the effective device of tripping rate with lightning strike.Leakage conductor can improve the resistance to thunder level of transmission line of electricity significantly, reduces the lightning flashover rate of transmission line of electricity.
At present, the mounting means of leakage conductor mainly has suspension type and column support type two class.Traditional suspended-type surge arrester erecting device is that outer instigating type installs leakage conductor by cross arm of tower mounting bracket；Traditional column support type mainly has two kinds, and one is again to be set up pillar by ground, installs leakage conductor；One is mounting bracket at tower body, installs leakage conductor.For the installation of DC line spark gap, current main selection column support type is installed.For ± 800 kilovolts of DC transmission line line pole towers, shaft tower is averagely exhaled high more than 60 meters, and shaft tower frequent for lightening activity, that thunderbolt risk is higher is mostly in complicated landform, the landforms such as side slope, mountain area, make ± 800 kilovolts of DC power transmission line spark gap pillar setting height(from bottom)s are the highest, long construction period, costly, and easily caused potential safety hazard by big wind effect.Therefore, a kind of convenient, efficient ± 800 kilovolts of DC line spark gap erecting devices are needed badly.
Utility model content
The purpose of this utility model is, higher for existing ± 800 kilovolts of DC power transmission line height, leakage conductor column support type mounting means long construction period, costly, defect that potential safety hazard is big, the erecting device of one ± 800 kilovolts of DC line spark gaps is provided, use this device, can realize ± 800 kilovolts of DC line spark gaps convenient, efficiently install, reduce tripping rate with lightning strike, improve ± 800 kilovolts of DC line lightning protection levels.
For achieving the above object, this utility model adopts the following technical scheme that:
One ± 800 kilovolts of DC line spark gap erecting devices, hang yoke plate 5, connecting rod 4, insulation column 7 and lead spacer 1 including insulator；
Insulator hangs yoke plate (5) and is provided with n installing hole (6), n >=3, and two of which installing hole is for installing two insulator chains being parallel to each other 2, and another installing hole 6 is used for installing connecting rod 4；
Described connecting rod 4 is L-shaped hard connecting rod；
Leakage conductor body 3 one end is arranged on base, and base is installed to insulator chain suspension yoke plate 5 by connecting rod 4, it is achieved the installation of leakage conductor；
It is provided with insulation column 7 between leakage conductor body 3 one end and base, is insulated by insulation column 7 between leakage conductor body 3 and base；
The other end of leakage conductor body 3 is high-pressure side, and high-pressure side is arranged in lead spacer 1；
Leakage conductor body 3 is parallel with the insulator chain 2 being arranged on insulator suspension yoke plate.Owing to there being certain the air gap insulating requirements between insulator chain and spark gap, for preventing clearance distance to be less than required value, two equipment rooms need parallel.
It is four hole yoke plates that described insulator hangs yoke plate (5), which is provided with four installing holes (6).Although this utility model has only to three installing holes utilized on yoke plate, but owing to diplopore yoke plate and four hole yoke plates are extra-high voltage project standard components, use four hole yoke plates to be easy to buying and assembling, therefore this utility model uses four hole yoke plates.Described high-pressure side is arranged in lead spacer 1 by bolt.
Described leakage conductor discharge counter lead-in wire 8 is connected in connecting rod 4, it is achieved the record of leakage conductor action frequency.
Perforate in described connecting rod 4, leakage conductor discharge counter lead-in wire 8 is installed in connecting rod 4 by bolt.
At present, ± 800 kilovolts of DC line tangent tower insulation configuration many selections duplex " V " type insulator chain suspentions, duplex " V " type insulator chain is connected on shaft tower by diplopore yoke plate.First diplopore yoke plate is replaced by four hole yoke plates by this utility model erecting device, on the installing hole that monolateral two insulator chains of " V " type insulator chain use bolt to be installed on four hole yoke plates respectively.
Described leakage conductor floor installation is in " L " type hard connecting rod, and connecting rod is installed on for suspension insulator string four hole yoke plate, it is achieved the suspension of leakage conductor.
The length on the limit that described " L " type connecting rod is perpendicular to lightning arrester body need to meet the requirement of the minimum safe the air gap between insulator chain and leakage conductor, specify according to " the great anti-accident measures of transregional transmission line of electricity ", connection spacing, not less than 600 millimeters, meets spark gap simultaneously and hangs requirement.
Described leakage conductor, in order to realize the record of lightning arrestor movement number of times, is provided with insulation column between described spark gap and base, it is ensured that the normal water conservancy diversion of discharge counter lead-in wire.Discharge counter is bottom spark gap, and without insulator foot, the electric current that shunting action makes electric current be gone between by discharge counter water conservancy diversion is unable to reach count requirement.
Perforate in described " L " type hard connecting rod, leakage conductor discharge counter lead-in wire uses bolt to be installed in " L " type hard connecting rod.
Described leakage conductor high-pressure side is installed in lead spacer, is fixed from strap bolt with in lead spacer.
± 800 kilovolts of DC line shaft tower load nargin, generally more than 2 times, use leakage conductor erecting device of the present utility model to meet shaft tower loading demands.
Compared with existing apparatus, this utility model have the advantage that into:
Using erecting device of the present utility model, when circuit is properly functioning, leakage conductor can be seen as the 3rd insulator string, adds insulator and hangs the reliability of wire.When circuit is struck by lightning, when insulator two ends generation overvoltage exceedes lightning arrestor movement voltage, spark gap action message, utilize the nonlinear wind vibration of valve block to limit the residual voltage of arrester flashover voltage less than line insulator string.
This utility model erecting device is by being replaced by four hole yoke plates by the diplopore yoke plate being used for suspension insulator, leakage conductor is arranged on four hole yoke plates of insulator by connecting rod, not limited by the factor such as landform, external condition, erecting device is simple, and installation cost is low, reliability is high.
Accompanying drawing explanation
Fig. 1 is this utility model ± 800 kilovolt DC line spark gap erecting device schematic diagrams；
Fig. 2 is that this utility model insulator chain hangs yoke plate scheme of installation.
Wherein: 1 is lead spacer, 2 is insulator chain, and 3 is leakage conductor body, and 4 is connecting rod, and 5 hang yoke plate for insulator chain, and 6 is installing hole, and 7 is insulation column, and 8 go between for leakage conductor discharge counter.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
As shown in Figure 1, insulator is hung yoke plate 5 and is replaced by four hole yoke plates by of the present utility model ± 800 kilovolts of DC line spark gap erecting devices, leakage conductor 3 body is insulated by insulation column 7 with base, lightning arrester base installs connecting rod 4, installing connecting rod 4 other end uses bolt to be arranged on the installing hole 6 of insulator chain suspension yoke plate 5, leakage conductor high-pressure side is installed to lead spacer 1, it is achieved the installation of leakage conductor.
Leakage conductor discharge counter lead-in wire 8 is connected in connecting rod 4, it is achieved the record of lightning arrestor movement number of times.
Installation process of the present utility model is: first determine the length of connecting rod 4 according to the minimum air void of leakage conductor 3 with insulator chain 2.Connecting rod is carried out Force Calculation, determines the connecting rod type of the pendency stress meeting leakage conductor 3.Then, under power down mode, the diplopore yoke plate of suspension insulator is replaced by four hole yoke plates 5.Spark gap uses crane to carry out lifting and installs, and is installed to four hole yoke plates 5 by connecting rod 4 by leakage conductor base, and high-pressure side is installed to lead spacer 1.Finally by leakage conductor discharge counter lead-in wire 8 installation to connecting rod 4.
One ± 800 kilovolt described in the utility model DC line spark gap erecting device, for the thunderbolt being subject to ± 800 kilovolts of DC power transmission lines install leakage conductors, without considering the influence of topography, overcome the problem that leakage conductor ground strut formula erecting device long construction period, mounting cost be high, potential safety hazard landform big, complicated cannot be installed.This apparatus structure is simple, and installation cost is low, and reliability is high, and the suitability is stronger.
Above content is the further description of this utility model detailed description of the invention; it cannot be assumed that detailed description of the invention of the present utility model is only limitted to this; for this utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; some simple deduction or replace can also be made, all should be considered as the scope of patent protection that this utility model is determined by the claims submitted to.
Claims (5)
1. one kind ± 800 kilovolts DC line spark gap erecting devices, it is characterised in that: include that insulator hangs yoke plate (5), connecting rod (4), insulation column (7) and lead spacer (1)；
Insulator hangs yoke plate (5) and is provided with n installing hole (6), n >=3, two of which installing hole is for installing two insulator chains being parallel to each other (2), and another installing hole (6) is used for installing connecting rod (4)；
Described connecting rod (4) is L-shaped hard connecting rod；
Leakage conductor body (3) one end is arranged on base, and base is installed to insulator chain suspension yoke plate (5) by connecting rod (4)；
Leakage conductor body (3) is provided with insulation column (7) between one end and base；
The other end of leakage conductor body (3) is high-pressure side, and high-pressure side is arranged in lead spacer (1)；
Leakage conductor body (3) is parallel with the insulator chain (2) being arranged on insulator suspension yoke plate.
The most according to claim 1 ± 800 kilovolts of DC line spark gap erecting devices, it is characterised in that: it is four hole yoke plates that described insulator hangs yoke plate (5), which is provided with four installing holes (6).
The most according to claim 2 ± 800 kilovolts of DC line spark gap erecting devices, it is characterised in that: described high-pressure side is arranged in lead spacer (1) by bolt.
The most according to claim 3 ± 800 kilovolts of DC line spark gap erecting devices, it is characterized in that: described leakage conductor discharge counter lead-in wire (8) is connected in connecting rod (4), it is achieved the record of leakage conductor action frequency.
5. according to according to any one of Claims 1 to 4 ± 800 kilovolts of DC line spark gap erecting devices, it is characterized in that: the upper perforate of described connecting rod (4), leakage conductor discharge counter lead-in wire (8) is installed in connecting rod (4) by bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620245409.4U CN205646747U (en) | 2016-03-28 | 2016-03-28 | 800 kilovolt direct current line gap installation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620245409.4U CN205646747U (en) | 2016-03-28 | 2016-03-28 | 800 kilovolt direct current line gap installation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205646747U true CN205646747U (en) | 2016-10-12 |
Family
ID=57074182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620245409.4U Withdrawn - After Issue CN205646747U (en) | 2016-03-28 | 2016-03-28 | 800 kilovolt direct current line gap installation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205646747U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762753A (en) * | 2016-03-28 | 2016-07-13 | 国家电网公司 | +/-800kV DC line arrester installing device and method |
| CN109961618A (en) * | 2019-03-22 | 2019-07-02 | 国网湖南省电力有限公司 | Composite insulator V-type arranges string falling prevention improvement and alarming method for power |
-
2016
- 2016-03-28 CN CN201620245409.4U patent/CN205646747U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762753A (en) * | 2016-03-28 | 2016-07-13 | 国家电网公司 | +/-800kV DC line arrester installing device and method |
| CN105762753B (en) * | 2016-03-28 | 2017-08-18 | 国家电网公司 | A kind of ± 800 kilovolts of DC line arrester erecting devices and methods |
| CN109961618A (en) * | 2019-03-22 | 2019-07-02 | 国网湖南省电力有限公司 | Composite insulator V-type arranges string falling prevention improvement and alarming method for power |
| CN109961618B (en) * | 2019-03-22 | 2020-09-01 | 国网湖南省电力有限公司 | Composite insulator V-shaped arrangement anti-string-falling treatment and warning method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103474940B (en) | A kind of electrical network high tower power transmission line comprehensive lightning-protection system | |
| CN104518475A (en) | Distribution network integrated lightning protection system | |
| CN205646747U (en) | 800 kilovolt direct current line gap installation device | |
| CN202384124U (en) | Arrester for direct-current power transmission line protection | |
| CN207572937U (en) | A kind of transmission line of alternation current double loop tangent tower with arrester | |
| CN105762753B (en) | A kind of ± 800 kilovolts of DC line arrester erecting devices and methods | |
| CN207265416U (en) | A kind of 10kV exchanges overhead transmission line arc blowing type lightning protection device | |
| CN202503194U (en) | Suspension type lightning arrester applicable to power transmission lines | |
| CN201985500U (en) | Oblique-pulling and hanging type lightning arrester for 500KV power transmission line | |
| CN103812010A (en) | Two-stage series gap lightning flashover protector with discharge counter | |
| CN210041325U (en) | Device for balancing current to ground of power grid | |
| CN109473936B (en) | Mounting structure and mounting method for protective ground wire on terminal rod | |
| CN207442184U (en) | The fixation external series gap lightning arrester that a kind of low residual voltage, deterioration can be shown | |
| CN201444578U (en) | Lightning-protection device for transformer | |
| CN205791424U (en) | The shielding line system of arc is exposed for reducing mountain area 750kV common-tower double-circuit lines shielding | |
| CN104734102A (en) | Alternating current transmission line iron tower | |
| CN204464915U (en) | Transmission line of alternation current steel tower | |
| CN203631987U (en) | Lightning-protection device for insulator through employing rotating shaft for double-adjustment of parallel gap | |
| CN102957117A (en) | Lightning-proof tension insulator string | |
| CN204441702U (en) | A kind of lightning stroke flashover restraint device for 110kV transmission line of alternation current | |
| CN204216549U (en) | A kind of transmission line | |
| CN204349213U (en) | A kind of lightning stroke flashover restraint device for 220kV transmission line of alternation current | |
| CN202616719U (en) | Comprehensive lightning protection device for 500kV line | |
| CN215896080U (en) | Lightning protection device for power distribution network line | |
| CN202550447U (en) | Lightning arrester for 10kv distribution line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161012 Effective date of abandoning: 20170818 |
|
| AV01 | Patent right actively abandoned |