CN203690017U - Annularly-connected composite insulator chain of +-800 kV extra-high voltage DC line - Google Patents
Annularly-connected composite insulator chain of +-800 kV extra-high voltage DC line Download PDFInfo
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- CN203690017U CN203690017U CN201320889425.3U CN201320889425U CN203690017U CN 203690017 U CN203690017 U CN 203690017U CN 201320889425 U CN201320889425 U CN 201320889425U CN 203690017 U CN203690017 U CN 203690017U
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- string
- insulator
- link
- composite insulator
- ring
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- 239000012212 insulator Substances 0.000 title claims abstract description 65
- 239000002131 composite material Substances 0.000 title claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims description 27
- 239000000725 suspension Substances 0.000 claims description 24
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 8
- 239000010931 gold Substances 0.000 claims description 8
- 229910052737 gold Inorganic materials 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
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Abstract
The utility model discloses an annularly-connected composite insulator chain of a +-800 kV extra-high voltage DC line, which comprises a suspended connecting plate, wherein six suspended clamps which are uniformly distributed circumferentially are disposed on the suspended connecting plate, two V-shaped serial connecting holes are disposed symmetrically on the top of the suspended connecting plate, two single-linked chains which are combined into a V-shaped suspended chain are respectively connected to the two V-shaped serial connecting holes and the two single-linked chains are disposed symmetrically; each of the single-linked chains which are combined into the V-shaped suspended chain comprises an insulator and a grading ring is disposed on the insulator; one end of the insulator passes through a first hanging ring, a linkage plate and a second hanging ring in order to be connected with the V-shaped serial connecting holes and the other end passes through a third hanging ring and a fourth hanging ring to be connected to an armor clamp at a hanging point. In the annularly-connected composite insulator chain of the +-800 kV extra-high voltage DC line in the utility model, two ends of the insulator are connected annularly. The former bulb and socket connection forms used in the insulator are replaced, so that extrusion of a bulb and a socket to an R pin is eliminated.
Description
Technical field
The utility model relates to iron tower of power transmission line technical field, specifically relates to one ± 800kV UHVDC Transmission Lines ring and connects composite insulator string.
Background technology
For the electric energy that allows Energy Base produce reduces loss in the process that is transported to electricity needs center, improve transmission of electricity quality, China is building UHV transmission line at present energetically.Tangent tower, as a kind of iron tower structure, is widely used in UHV Overhead Transmission Line, for support wire and ground wire, is generally used between the strain section of circuit, is the more shaft tower type of usage quantity in a transmission line.Suspension insulator is a kind of vitals being used on tangent tower, on tangent tower, connect wire and steel tower and keep transmission pressure and steel tower between the vitals of electric insulation.
The feature of suspension insulator is the gravity laod bearing from wire, horizontal wind load and self gravitation load, and keep the electric insulation of transmission pressure and steel tower self.At present, in general UHV transmission line field, suspension insulator generally adopts and connects composite insulator that gold utensil and composite material make by rationally connecting to form.Through electric insulation calculating, Mechanics Calculation and carry out fail safe, economy etc. comprehensively relatively after determine.
The selectable V-type string that has vertically arranged I string, tilts to install as required in the installation of transmission line suspension insulator, the various ways such as Y type string and the installation of multi-series and parallel connection, different mounting meanss can produce Different Effects to insulator contamination characteristic.The I string of the most employing of hvdc transmission line suspension string both at home and abroad and two kinds of modes of V string at present, ruuning situation is good, the design of I string and V string and the existing rich experience of use.
The suspension insulator of at present general UHVDC Transmission Lines adopts V-structure more.Its V string left and right two symmetries, are used for connecting steel tower topmost, and centre forms by connecting gold utensil and composite insulator, becomes attached to and bears mechanical load in order to keep electric.At present, both at home and abroad, in the connected mode of conventional ± 800kV DC line insulator and gold utensil, adopt bulb, a bowl connecting structure more.For V-type string, composite insulator is different from linking of dish-type insulator, on composite insulator, there is no pin joint, its rigidity easily manifests, and easily causes the extruding of bulb and R pin in the two ends of composite insulator bulb and a bowl junction, causes the distortion of R pin, make R pin lose the effect that anti-bulb comes off, cause insulator to come off, the activity space of bulb in bowl head is less, can cause the possibility of bulb distortion under large moment of flexure.Although the anti-bulb of taking the at present measure that comes off has limited to a certain extent V-type composite insulator string and has come off, but still has defect.Install the mutually measure of cover of anchor ear outward additional at bowl head, shutoff the passage that comes off from bowl head of bulb, but can not avoid R pin to be extruded the problem of distortion, likely cause non axial stressed, the stress raisers of bulb, cause the bulb fatigue fracture accident that produces.Therefore, by the structural shape of Improvement suspension insulator, fundamentally solving the composite insulator V-type string bulb problem that comes off, is that those skilled in the art are badly in need of the technical problem solving.
Utility model content
The purpose of this utility model is to overcome the defect of above-mentioned prior art, provides one ± 800kV UHVDC Transmission Lines ring to connect composite insulator string, the requirement of its can meet ± 800kV UHVDC Transmission Lines.
For achieving the above object, the utility model adopts following technical scheme:
One ± 800kV UHVDC Transmission Lines ring connects composite insulator string, comprise hanging yoke plate, on this hanging yoke plate, be provided with six circumferential equally distributed suspension clamps, hanging yoke plate top is symmetrically arranged with two V string connecting holes, two simply connected strings of the synthetic V-type suspension string of duplex are connected with two V string connecting holes respectively, and two simply connected strings are symmetrical arranged;
Each simply connected string of the synthetic V-type suspension string of described duplex includes an insulator, is provided with grading ring on insulator; One end of this insulator is connected with V string connecting hole by the first link, yoke plate and the second link successively, and its other end is connected with hardware with the 4th link by the 3rd link successively.
The utility model further improves and is: the heavy punch piece that control ring connects the pendulum angle of composite insulator string is installed on described hanging yoke plate.
The utility model further improves and is: described grading ring comprises grading ring, middle grading ring and lower uniform pressure ring, and it is successively set on insulator from top to bottom.
The utility model further improves and is: described the first link and the 3rd link all adopt U-shaped link.
The utility model further improves and is: described hardware adopts trunnion hanging panel gold utensil.
The utility model further improves and is: described suspension clamp adopts handbag type suspension clamp.
Compared with prior art, the utlity model has following advantage:
The utility model one ± 800kV UHVDC Transmission Lines ring connects composite insulator string, its insulator two ends adopt annular type of attachment, substitute the bulb, the bowl type of attachment that on insulator in the past, adopt, thereby eliminated bulb, the extruding problem of bowl head to R pin.The utility model is connected with yoke plate by two links, thereby increase pin joint, can make the impact of insulator side of wire was Moments on Both Ends significantly decline, play the effect of dredging, fundamentally solve common insulator pin stress raisers fatigue fracture accident in the past.The utility model can also effectively prevent that the windage yaw in circuit running from falling string accident, has improved circuit reliability of operation.
Brief description of the drawings
Fig. 1 is that the utility model ± 800kV UHVDC Transmission Lines ring connects composite insulator string schematic diagram.
Fig. 2 is that the utility model ± 800kV UHVDC Transmission Lines ring connects composite insulator string end view.
Fig. 3 is that the A of Fig. 2 is to view.
Wherein: 1, hanging yoke plate; 101, V string connecting hole; 2, the synthetic V-type suspension string of duplex; 201, the second link; 202, yoke plate; 203, the first link; 204, lower uniform pressure ring; 205, middle grading ring; 206, insulator; 207, upper grading ring; 208, the 3rd link; 209, the 4th link; 210, hardware; 3, suspension clamp; 4, heavy punch piece; 5, wire; 6, protect lines.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
With reference to Fig. 1 and 2, the utility model one ± 800kV UHVDC Transmission Lines ring connects composite insulator string, comprises hanging yoke plate 1, is provided with six circumferential equally distributed handbag type suspension clamps 3 on this hanging yoke plate 1, and this suspension clamp 3 has anti-corona performance; Hanging yoke plate 1 top is symmetrically arranged with two V string connecting holes 101, and two simply connected strings of the synthetic V-type suspension string 2 of duplex are connected with two V string connecting holes 101 respectively, and two simply connected strings are symmetrical arranged; Heavy punch piece 4 is also installed on hanging yoke plate 1, and it connects the pendulum angle of composite insulator string under strong wind operating mode for control ring.
Each simply connected string of the synthetic V-type suspension string 2 of above-mentioned duplex includes an insulator 206, on insulator 206, be provided with grading ring, this grading ring comprises grading ring 207, middle grading ring 205 and lower uniform pressure ring 204, it is successively set on insulator 206 from top to bottom, upper grading ring 207, middle grading ring 205 and lower uniform pressure ring 204 are used for improving insulator electromagnetic environment around jointly, wherein, upper grading ring 207 and the lower low field intensity district that all presses 204 formation, insulator 206 silicon rubber and the Electric Field Distribution that is connected gold utensil junction are effectively improved, the low field intensity district that middle grading ring 205 forms, make again grading ring 207 and lower uniform pressure ring 204 outside electric fields obtain effective shielding, to preventing that insulator 206 from connecting gold utensil end face corona, silicone rubber jacket galvanic corrosion, improve insulator 206 operational reliabilitys very favourable.
One end of insulator 206 is connected with V string connecting hole 101 by the first link 203, yoke plate 202 and the second link 201 successively, its other end is connected with the 4th link 209 trunnion hanging panel gold utensil superior with stress performance by the 3rd link 208 successively, for being connected with tower body cross-arm.Wherein, the first link 203 and the 3rd link 208 all adopt U-shaped link.
Referring to Fig. 3, for connecting composite insulator string, ring of the present invention uses state, and wherein, except the suspension clamp 3 of secure wires 5, also comprise and protect lines 6.
Above provided by the utility model ± 800kV UHVDC Transmission Lines ring being connected to composite insulator string is described in detail, applied specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment is just for helping to understand method of the present utility model and core concept thereof; , for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model meanwhile.
Claims (6)
1. one kind ± 800kV UHVDC Transmission Lines ring connects composite insulator string, it is characterized in that: comprise hanging yoke plate (1), on this hanging yoke plate (1), be provided with six circumferential equally distributed suspension clamps (3), hanging yoke plate (1) top is symmetrically arranged with two V string connecting holes (101), two simply connected strings of the synthetic V-type suspension string (2) of duplex are connected with two V string connecting holes (101) respectively, and two simply connected strings are symmetrical arranged;
Each simply connected string of the synthetic V-type suspension string (2) of described duplex includes an insulator (206), and insulator is provided with grading ring on (206); One end of this insulator (206) is connected with V string connecting hole (101) by the first link (203), yoke plate (202) and the second link (201) successively, and its other end is connected with hardware (210) with the 4th link (209) by the 3rd link (208) successively.
2. according to claim 1 ± 800kV UHVDC Transmission Lines ring connects composite insulator string, it is characterized in that: the heavy punch piece (4) that control ring connects the pendulum angle of composite insulator string is installed on described hanging yoke plate (1).
3. according to claim 1 ± 800kV UHVDC Transmission Lines ring connects composite insulator string, it is characterized in that: described grading ring comprises grading ring (207), middle grading ring (205) and lower uniform pressure ring (204), and it is successively set on insulator (206) from top to bottom.
4. according to claim 1 ± 800kV UHVDC Transmission Lines ring connects composite insulator string, it is characterized in that: described the first link (203) and the 3rd link (208) all adopt U-shaped link.
5. according to claim 1 ± 800kV UHVDC Transmission Lines ring connects composite insulator string, it is characterized in that: described hardware (210) adopts trunnion hanging panel gold utensil.
6. according to claim 1 ± 800kV UHVDC Transmission Lines ring connects composite insulator string, it is characterized in that: described suspension clamp (3) adopts handbag type suspension clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320889425.3U CN203690017U (en) | 2013-12-23 | 2013-12-23 | Annularly-connected composite insulator chain of +-800 kV extra-high voltage DC line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320889425.3U CN203690017U (en) | 2013-12-23 | 2013-12-23 | Annularly-connected composite insulator chain of +-800 kV extra-high voltage DC line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203690017U true CN203690017U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320889425.3U Expired - Lifetime CN203690017U (en) | 2013-12-23 | 2013-12-23 | Annularly-connected composite insulator chain of +-800 kV extra-high voltage DC line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203690017U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376934A (en) * | 2014-11-20 | 2015-02-25 | 国家电网公司 | Compact type tri-connection V-shaped suspension string for light-ice area |
| CN104376935A (en) * | 2014-11-20 | 2015-02-25 | 国家电网公司 | Compact type dual-connection V-shaped suspension string for light-ice area |
| CN108682522A (en) * | 2018-05-25 | 2018-10-19 | 华润电力风能（阳江）有限公司 | Single conductor simply connected suspension insulator |
| CN110135035A (en) * | 2019-05-05 | 2019-08-16 | 中国电力科学研究院有限公司 | A kind of 750kV exchange feeds back electricity with tower four and presses fitting design method |
-
2013
- 2013-12-23 CN CN201320889425.3U patent/CN203690017U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376934A (en) * | 2014-11-20 | 2015-02-25 | 国家电网公司 | Compact type tri-connection V-shaped suspension string for light-ice area |
| CN104376935A (en) * | 2014-11-20 | 2015-02-25 | 国家电网公司 | Compact type dual-connection V-shaped suspension string for light-ice area |
| CN108682522A (en) * | 2018-05-25 | 2018-10-19 | 华润电力风能（阳江）有限公司 | Single conductor simply connected suspension insulator |
| CN110135035A (en) * | 2019-05-05 | 2019-08-16 | 中国电力科学研究院有限公司 | A kind of 750kV exchange feeds back electricity with tower four and presses fitting design method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100761 West Chang'an Avenue, Beijing, No. 86, No. Patentee after: State Grid Corporation of China Patentee after: CHINA POWER ENGINEERING CONSULTING (Group) Corp. Patentee after: ELECTRIC POWER PLANNING & ENGINEERING INSTITUTE Patentee after: NORTHEAST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group Patentee after: EAST CHINA ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group Patentee after: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Corp. Patentee after: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group Patentee after: Southwest Electric Power Design Institute CO., Ltd. of China Power Engineering Consulting Group Patentee after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group Address before: 100761 West Chang'an Avenue, Beijing, No. 86, No. Patentee before: State Grid Corporation of China Patentee before: CHINA POWER ENGINEERING CONSULTING Group Corp. Patentee before: ELECTRIC POWER PLANNING & ENGINEERING INSTITUTE Patentee before: NORTHEAST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Patentee before: CHINA POWER ENGINEERING CONSULTING Group CORPORATION EAST CHINA ELECTRIC POWER DESIGN INSTITUTE Patentee before: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTITUTE, CHINA POWER ENGINEERING CONSULTING Group Corp. Patentee before: NORTHWEST ELECTRIC POWER DESIGN INST. OF CHINA POWER ENGINEERING CONSULTING Group Patentee before: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Corp. Patentee before: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING Group |
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| CX01 | Expiry of patent term |
Granted publication date: 20140702 |
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| CX01 | Expiry of patent term |