CN105633799A - Tower body support structure for +/-500kV strain tower DC line arrester and installation method of +/-500kV strain tower DC line arrester - Google Patents
Tower body support structure for +/-500kV strain tower DC line arrester and installation method of +/-500kV strain tower DC line arrester Download PDFInfo
- Publication number
- CN105633799A CN105633799A CN201610135837.6A CN201610135837A CN105633799A CN 105633799 A CN105633799 A CN 105633799A CN 201610135837 A CN201610135837 A CN 201610135837A CN 105633799 A CN105633799 A CN 105633799A
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- Prior art keywords
- tower
- thunder arrester
- arrester
- resistance
- body support
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/08—Overvoltage arresters using spark gaps structurally associated with protected apparatus
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
Abstract
The invention provides a tower body support structure for a +/-500kV strain tower DC line arrester and an installation method of the +/-500kV strain tower DC line arrester. The tower body support structure comprises an arrester tower body bracket (1) and an arrester body bracket connection plate (2), wherein one end of the arrester tower body bracket (1) is arranged on a strain tower body; the arrester body bracket connection plate (2) is arranged at the other end of the arrester tower body bracket (1); an arrester body (3) is arranged on the arrester body bracket connection plate (2); an arc-shaped electrode (4) is arranged at the top part of the arrester; a high-voltage terminal electrode (5) is arranged at the bottom part of a jumper wire at the lower part of a strain tower insulator string (6) and is located right above the arc-shaped electrode(4); and the high-voltage terminal electrode (5) and the arc-shaped electrode (4) form a series gap of the arrester. With the strain tower body as line arrester support, the tower body support structure is not affected by the terrain, and is simple in structure and relatively high in applicability.
Description
Technical field
The present invention relates to leakage conductor field, it is specifically related to one �� 500kV resistance to tower DC line thunder arrester tower body support type structure and installation method thereof.
Background technology
�� 500kV DC power transmission line lightning fault statistics shows, resistance to tower lightning fault reaches 40% at total lightning stroke trip number of times proportion. Therefore, DC line resistance to tower lightning protection is transformed into the problem that solution is needed in current DC line running maintenance badly. DC line thunder arrester reduces a kind of very effective method of circuit lightning strike accident, theoretical calculation analysis and practice all prove, leakage conductor is applied to that circuit lightening activity is strong or soil resistivity height, the line segment that reduces stake resistance and have any problem, the lightning withstand level of DC line can be improved significantly, reduce the lightning flashover rate of circuit, thus reduce the unplanned power off time of circuit, it is to increase power supply reliability.
Resistance to tower DC line thunder arrester mainly uses ground strut formula installation method at present, sets up free-standing pillar immediately below jumper string point of tangent, post top portion gun iron link thunder arrester body. But this installation method is subject to the restriction of the factor such as landform, external conditions, for resistance to the tower being in the complicated topography and geomorphology such as side slope, mountain area in a large number, the installation requirement of self-support pillar cannot be met. Therefore, urgent need a kind of not by landform affect �� 500kV resistance to tower DC line thunder arrester supporting structure and installation method thereof.
Summary of the invention
It is an object of the invention to the problem affected by landform is installed for existing DC line thunder arrester ground strut formula, there is provided a kind of not by landform affect �� 500kV resistance to tower DC line thunder arrester tower body support type structure and installation method thereof, the present invention utilizes tower body as support, does not affect by landform.
For achieving the above object, the present invention adopts following technical scheme:
One �� 500kV resistance to tower DC line thunder arrester tower body support type structure, comprises thunder arrester tower body support 1 and thunder arrester body bracket web plate 2;
One end of thunder arrester tower body support 1 is installed on the body of resistance to Zhang Tata, and the other end of thunder arrester tower body support 1 is equipped with thunder arrester body bracket web plate 2, and thunder arrester body 3 is installed on thunder arrester body bracket web plate 2; Tower body support is realized the support to thunder arrester body by thunder arrester body bracket web plate and is connected;
Thunder arrester top installing arc-shaped electrode 4, is provided with high pressure end electrode bottom wire jumper below resistance to tower insulator chain 6, and high pressure end electrode 5 is positioned at the surface of arc-shaped electrode 4, and high pressure end electrode 5 forms the gap of connecting of thunder arrester with arc-shaped electrode 4. The arc-shaped electrode 4 at described thunder arrester body 3 and top, after installation should immediately below high pressure end electrode 5 position, form thunder arrester series and parallel gap.
One end of described thunder arrester tower body support 1 is installed on, by node plate 7, the body of resistance to Zhang Tata.
It is bolted between described node plate 7 and the body of resistance to Zhang Tata. Described thunder arrester tower body support 1 is for realizing reliable connection, the node plate 7 that thunder arrester tower body support 1 connects uses bolt mode to fix, therefore need to use with it at resistance to Zhang Tata in advance to adopt the mode of magnetic drill press and generator combination newly to cut a hole bolt hole, after newly-increased bolt hole should be done rotproofing, it may also be useful to node plate is installed on it resistance to Zhang Tata by bolt.
It is bolted between described thunder arrester tower body support and node plate 7.
Described thunder arrester body 3 is installed on thunder arrester body bracket web plate 2 and realizes firmly connecting with bolt; Described thunder arrester body bracket web plate is reserved with the bolt hole for fixing thunder arrester body.
Described arc-shaped electrode is connected with thunder arrester body by bolt.
Described high pressure end electrode is installed on the conductor spacing rod for interval and fixing wire jumper, fixes by carrying bolt on the rod of conductor spacing.
Air gap distance between described high pressure end electrode 5 and arc-shaped electrode 4 is 1650 �� 150mm. Before installation, by calculating the installation position determining this support type structure; After described high pressure end electrode installation, the air gap distance between high pressure end electrode and arc-shaped electrode need to be checked, it is ensured that distance meets 1650 �� 150mm.
One �� 500kV resistance to tower DC line thunder arrester installation method, adopts above-mentioned �� 500kV resistance to tower DC line thunder arrester tower body support type structure, and installation method is:
1) design paper and DC line thunder arrester actual service conditions according to resistance to tower carries out forcing checking, it is determined that resistance to tower is the need of carrying out reinforcement solutions; If desired, then step 2 is entered after carrying out reinforcement solutions again); If not needing, directly enter step 2);
2) according to guarantee DC line thunder arrester end arc-shaped electrode, high pressure end electrode on same vertical line and two interelectrode distances meet the principle of 1650 �� 150mm, calculate the installation position of thunder arrester tower body support 1 and length;
3) bolt hole is installed corresponding to the installation position of thunder arrester tower body support 1 with it at resistance to Zhang Tata;
4) node plate 7, thunder arrester tower body support 1, thunder arrester body bracket web plate 2 carried out after assembling completes on ground, it may also be useful to node plate 7 carries out integral lifting installation;
5), after thunder arrester tower body support installing completes, thunder arrester body 3 is hung to thunder arrester body bracket web plate 2 and after being directed at bolt hole, it may also be useful to bolt carries out fastening installation;
6) arc-shaped electrode 4 is installed at thunder arrester body 2 top, and high pressure end electrode 5 is installed below insulator chain 6.
After installation, whether the air gap distance surveyed between direct current arrester high pressure end electrode 5 and arc-shaped electrode 4 again is 1650 �� 150mm, if not meeting, then adjusts, until meeting design requirement.
Compared with the conventional method, the advantage that the present invention has is:
The present invention, by thunder arrester supporting structure being installed on it resistance to Zhang Tata, utilizes thunder arrester body bracket to realize support and the installation of resistance to tower leakage conductor body. The installation position determining this support type structure by calculating, can easily make thunder arrester top arc-shaped electrode form the gap of connecting of thunder arrester with high pressure end electrode. The present invention utilizes the body of resistance to Zhang Tata to support as leakage conductor, does not limit by the factor such as landform, external conditions, and structure is simple, and suitability is stronger. Installation experience shows, the present invention be a kind of easy operation, feasibility high �� resistance to of 500kV tower DC line thunder arrester supporting structure.
Accompanying drawing explanation
Fig. 1 is the present invention �� 500kV resistance to tower DC line thunder arrester tower body support type structural representation;
Fig. 2 is tower body support node plate mode of connection schematic diagram of the present invention.
Wherein: 1 is thunder arrester tower body support, 2 is thunder arrester body bracket web plate, and 3 is thunder arrester body, and 4 is arc-shaped electrode, and 5 is high pressure end electrode, and 6 is insulator chain, and 7 is node plate, and 8 is node plate erection bolt.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the one �� 500kV of the present invention resistance to tower DC line thunder arrester tower body support type structure, comprises thunder arrester tower body support 1 and thunder arrester body bracket web plate 2;
One end of thunder arrester tower body support 1 is installed on the body of resistance to Zhang Tata, and the other end of thunder arrester tower body support 1 is equipped with thunder arrester body bracket web plate 2, and thunder arrester body 3 is installed on thunder arrester body bracket web plate 2; Tower body support is realized the support to thunder arrester body by thunder arrester body bracket web plate and is connected;
Thunder arrester top installing arc-shaped electrode 4, is provided with high pressure end electrode bottom wire jumper below resistance to tower insulator chain 6, and high pressure end electrode 5 is positioned at the surface of arc-shaped electrode 4, and high pressure end electrode 5 forms the gap of connecting of thunder arrester with arc-shaped electrode 4. The arc-shaped electrode 4 at described thunder arrester body 3 and top, after installation should immediately below high pressure end electrode 5 position, form thunder arrester series and parallel gap.
One end of described thunder arrester tower body support 1 is installed on, by node plate 7, the body of resistance to Zhang Tata.
It is bolted between described node plate 7 and the body of resistance to Zhang Tata. Described thunder arrester tower body support 1 is for realizing reliable connection, the node plate 7 that thunder arrester tower body support 1 connects uses bolt mode to fix, therefore need to use with it at resistance to Zhang Tata in advance to adopt the mode of magnetic drill press and generator combination newly to cut a hole bolt hole, after newly-increased bolt hole should be done rotproofing, it may also be useful to node plate is installed on it resistance to Zhang Tata by bolt.
It is bolted between described thunder arrester tower body support and node plate 7.
Described thunder arrester body 3 is installed on thunder arrester body bracket web plate 2 and realizes firmly connecting with bolt; Described thunder arrester body bracket web plate is reserved with the bolt hole for fixing thunder arrester body.
Described arc-shaped electrode is connected with thunder arrester body by bolt.
Described high pressure end electrode is installed on the conductor spacing rod for interval and fixing wire jumper, fixes by carrying bolt on the rod of conductor spacing.
Air gap distance between described high pressure end electrode 5 and arc-shaped electrode 4 is 1650 �� 150mm, the installation position determining this support type structure by calculating before installing; After described high pressure end electrode installation, the air gap distance between high pressure end electrode and arc-shaped electrode need to be checked, it is ensured that distance meets 1650 �� 150mm.
The present invention �� 500kV resistance to tower DC line thunder arrester installation method be: first design paper and DC line thunder arrester actual service conditions according to resistance to tower carries out forcing checking, it is determined that resistance to tower is the need of carrying out reinforcement solutions. Then according to guarantee DC line thunder arrester end arc-shaped electrode, high pressure end electrode on same vertical line and two interelectrode distances meet the principle of 1650 �� 150mm, calculate the installation position of thunder arrester tower body support 1 and length. On ground, node plate 7, thunder arrester tower body support 1, thunder arrester body bracket web plate 2 are assembled, complete open holes at the body of resistance to Zhang Tata correspondence position, it may also be useful to node plate 7 carries out integral lifting installation simultaneously. After thunder arrester tower body support installing completes, thunder arrester body 3 is hung to thunder arrester body bracket web plate 2 and after being directed at bolt hole, it may also be useful to bolt carries out fastening installation. Arc-shaped electrode 4 is finally installed at thunder arrester body 2 top, and high pressure end electrode 5 is installed below insulator chain 6. Direct current arrester should be surveyed again and whether shaft tower air gap distance meets 1650 �� 150mm that code requires after installation.
One �� 500kV of the present invention resistance to tower DC line thunder arrester tower body support type structure, for be easily struck by lightning �� 500kV DC power transmission line resistance to tower on leakage conductor install, without the need to considering, landform affects in the present invention, and suitability is stronger.
Above content is the further description of the specific embodiment of the invention; can not assert that the specific embodiment of the present invention is only limitted to this; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; some simple deduction or replace can also be made, all should be considered as the scope of patent protection that the present invention is determined by the claim book submitted to.
Claims (10)
1. one kind �� 500kV resistance to tower DC line thunder arrester tower body support type structure, it is characterised in that: comprise thunder arrester tower body support (1) and thunder arrester body bracket web plate (2);
One end of thunder arrester tower body support (1) is installed on the body of resistance to Zhang Tata, the other end of thunder arrester tower body support (1) is equipped with thunder arrester body bracket web plate (2), and thunder arrester body (3) is installed on thunder arrester body bracket web plate (2);
Thunder arrester top installing arc-shaped electrode (4), bottom resistance to tower insulator chain (6) lower section wire jumper, high pressure end electrode is installed, high pressure end electrode (5) is positioned at the surface of arc-shaped electrode (4), and high pressure end electrode (5) forms the gap of connecting of thunder arrester with arc-shaped electrode (4).
2. according to claim 1 �� 500kV resistance to tower DC line thunder arrester tower body support type structure, it is characterised in that: one end of described thunder arrester tower body support (1) is installed on, by node plate (7), the body of resistance to Zhang Tata.
3. one �� 500kV resistance to tower DC line thunder arrester tower body support type structure as claimed in claim 1, it is characterised in that: it is bolted between described node plate (7) and the body of resistance to Zhang Tata.
4. one �� 500kV resistance to tower DC line thunder arrester tower body support type structure as claimed in claim 1, it is characterised in that: it is bolted between described thunder arrester tower body support and node plate (7).
5. one �� 500kV resistance to tower DC line thunder arrester tower body support type structure as claimed in claim 1, it is characterised in that: described thunder arrester body (3) is installed on thunder arrester body bracket web plate (2) and above and realizes firmly connecting with bolt.
6. one �� 500kV resistance to tower DC line thunder arrester tower body support type structure as claimed in claim 1, it is characterised in that: described arc-shaped electrode is connected with thunder arrester body by bolt.
7. one �� 500kV resistance to tower DC line thunder arrester tower body support type structure as claimed in claim 1, it is characterized in that: described high pressure end electrode is installed on the conductor spacing rod for interval and fixing wire jumper, fixes by carrying bolt on the rod of conductor spacing.
8. one �� 500kV resistance to tower DC line thunder arrester tower body support type structure as claimed in claim 1, it is characterised in that: the air gap distance between described high pressure end electrode (5) and arc-shaped electrode (4) is 1650 �� 150mm.
9. one kind �� 500kV resistance to tower DC line thunder arrester installation method, it is characterised in that: according to any one of employing claim 1��8 �� 500kV resistance to tower DC line thunder arrester tower body support type structure, installation method is:
1) design paper and DC line thunder arrester actual service conditions according to resistance to tower carries out forcing checking, it is determined that resistance to tower is the need of carrying out reinforcement solutions; If desired, then step 2 is entered after carrying out reinforcement solutions again); If not needing, directly enter step 2);
2) according to guarantee DC line thunder arrester end arc-shaped electrode, high pressure end electrode on same vertical line and two interelectrode distances meet 1650 �� 150mm principle, calculate thunder arrester tower body support (1) installation position and length;
3) bolt hole is installed corresponding to the installation position of thunder arrester tower body support (1) with it at resistance to Zhang Tata;
4) node plate (7), thunder arrester tower body support (1), thunder arrester body bracket web plate (2) carried out after assembling completes on ground, it may also be useful to node plate (7) carries out integral lifting installation;
5) after thunder arrester tower body support installing completes, thunder arrester body (3) is risen hang to thunder arrester body bracket web plate (2) go up and after being directed at bolt hole, it may also be useful to bolt carries out fastening installation;
6) arc-shaped electrode (4) is installed at thunder arrester body (2) top, and in insulator chain (6) lower section, high pressure end electrode (5) is installed.
10. according to claim 9 �� 500kV resistance to tower DC line thunder arrester installation method, it is characterized in that: after installation, whether the air gap distance surveyed between direct current arrester high pressure end electrode (5) and arc-shaped electrode (4) again is 1650 �� 150mm, if not meeting, then adjust, until meeting design requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610135837.6A CN105633799A (en) | 2016-03-10 | 2016-03-10 | Tower body support structure for +/-500kV strain tower DC line arrester and installation method of +/-500kV strain tower DC line arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610135837.6A CN105633799A (en) | 2016-03-10 | 2016-03-10 | Tower body support structure for +/-500kV strain tower DC line arrester and installation method of +/-500kV strain tower DC line arrester |
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| Publication Number | Publication Date |
|---|---|
| CN105633799A true CN105633799A (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610135837.6A Pending CN105633799A (en) | 2016-03-10 | 2016-03-10 | Tower body support structure for +/-500kV strain tower DC line arrester and installation method of +/-500kV strain tower DC line arrester |
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| CN (1) | CN105633799A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134715A (en) * | 2017-05-10 | 2017-09-05 | 国家电网公司 | A kind of electric transmission line lightning arrester device and installation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11102766A (en) * | 1997-09-26 | 1999-04-13 | Mitsubishi Electric Corp | Gas insulating zinc oxide type lightning arrester |
| CN204492310U (en) * | 2015-01-13 | 2015-07-22 | 中国电力工程顾问集团西北电力设计院有限公司 | One ± 500kV DC power transmission line arrester mounting column formula structure |
-
2016
- 2016-03-10 CN CN201610135837.6A patent/CN105633799A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11102766A (en) * | 1997-09-26 | 1999-04-13 | Mitsubishi Electric Corp | Gas insulating zinc oxide type lightning arrester |
| CN204492310U (en) * | 2015-01-13 | 2015-07-22 | 中国电力工程顾问集团西北电力设计院有限公司 | One ± 500kV DC power transmission line arrester mounting column formula structure |
Non-Patent Citations (1)
| Title |
|---|
| 王峰等: "±500kV直流线路避雷器工程应用研究", 《高压电器》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134715A (en) * | 2017-05-10 | 2017-09-05 | 国家电网公司 | A kind of electric transmission line lightning arrester device and installation method |
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Application publication date: 20160601 |