CN105703304A - Adjacent-phase-wire phase-changing structure for 500kV power transmission line - Google Patents
Adjacent-phase-wire phase-changing structure for 500kV power transmission line Download PDFInfo
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- CN105703304A CN105703304A CN201610263275.3A CN201610263275A CN105703304A CN 105703304 A CN105703304 A CN 105703304A CN 201610263275 A CN201610263275 A CN 201610263275A CN 105703304 A CN105703304 A CN 105703304A
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- connecting tool
- insulator
- wire
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- 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
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/20—Spatial arrangements or dispositions of lines or cables on poles, posts or towers
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Abstract
The invention discloses an adjacent-phase-wire phase-changing structure for a 500kV power transmission line. The adjacent-phase-wire phase-changing structure comprises a tower body (1), wherein a pair of ground wire brackets (3) are mounted on the tower body (1); a T-shaped insulator string (2) is arranged in the middle-phase hanging point of the tower body (1); the pair of ground wire brackets (3) are symmetrically distributed on the two sides by taking the tower body (1) as the center line; jumper wire insulator strings (4) are suspended on the ground wire brackets (3); and jump wires (5) are arranged on the jumper wire insulator strings (4). The shortcoming that three phases need to be changed completely when only two phase sequences are non-corresponding existing in the prior art is overcome; and the adjacent-phase-wire phase-changing structure has the advantages of simple structure, low cost, convenient construction and reliable operation.
Description
Technical field
The present invention relates to power system field of power transmission, be more specifically a kind of 500kV transmission line of electricity neighbour's phase conductor commutation structure。
Background technology
ABC three-phase in transmission line of electricity is usually parallel arranged, the transformer station at two ends is coupled together。But sometimes must the phase sequence of a certain section being adjusted so that the wire being originally arranged in phase transforms to limit phase, the wire being originally arranged in limit phase transforms to the limit phase of phase or opposite side, and this is just referred to as transposition or commutation。Common transposition is by the position rotation successively of ABC three-phase, utilizes transposition tower all to convert once by three-phase conducting wire putting in order of space, eliminates unsymmetrical arrangement。This is common in because transmission line of electricity is long to eliminate the impact of three-phase current asymmetrical voltage。
At present to be that transmission line of electricity two ends only have biphase phase sequence not corresponding for more situation, only carries out commutation with to biphase, it is not necessary to three-phase all replaces。Entering in the process of transformer station at transmission line of electricity " π connects ", it often happens that。In many " π connects " engineering, often occur that transmission line of electricity phase sequence only has biphase not corresponding with transformer station outlet phase sequence, former circuit connects after transformation through π, generally no longer carries out phase place adjustment completely, many times needs, on transposition tower, adjacent phase conductor is carried out commutation。
At present, in engineering frequently with unsettled transposition carry out limit phase and limit in ABC three-phase mutually between commutation。But, there is not yet the research of transposition mutually between phase in Bian Xiangyu report, how to realize replacing mutually between adjacent phase, need solution badly。
Summary of the invention
It is an object of the invention to overcome the weak point of above-mentioned background technology, and propose a kind of 500kV transmission line of electricity neighbour's phase conductor commutation structure。
One 500kV transmission line of electricity neighbour's phase conductor commutation structure of the present invention, it includes tower body, described tower body is provided with a pair earth wire support, described tower body is provided with on phase hanging point a "T"-shaped insulator chain, a pair described earth wire support line centered by described tower body is arranged symmetrically in both sides, described earth wire support hangs with wire jumper insulator chain, described wire jumper insulator chain hangs with wire jumper。
In technique scheme: described "T"-shaped insulator chain is formed " T " font by the wire jumper insulator chain of the two of horizontal direction strain insulator strings Yu vertical direction。
In technique scheme: described "T"-shaped insulator chain is made up of hardware, the first connecting tool, the second connecting tool, the 3rd connecting tool, the 4th connecting tool, insulator, wire gold utensil；Described hardware is connected by two U-shaped links；Described U-shaped link and the first connecting tool are connected；The end of the first described connecting tool is connected with insulator, and the other end of insulator is connected with the insulator described in side of wire by the second connecting tool, and the described insulator being positioned at side of wire is connected with wire by the 3rd connecting tool；Described T-shaped yoke plate is connected with the wire jumper insulator of downward vertical by the 4th connecting tool；Described wire jumper insulator is connected by the 5th connecting tool and wire jumper mutually。
In technique scheme: be provided with on described insulator and all press shading ring。
In technique scheme: the first described connecting tool is coupled successively by adjustment plate, link plate, towing plate, ball-eye and forms；Second connecting tool is coupled successively by socket-clevis eye, the second yoke plate, right angle link plate, T-shaped yoke plate, the first U-shaped link, the first ball-eye and forms；The 3rd described connecting tool is coupled successively by socket-clevis eye, the first yoke plate, bracing frame, two the second U-shaped links, pull bar, right angle link plate, adjustment plate, the second U-shaped link, strain clamp and forms；4th connecting tool is coupled successively by right angle link plate, the 3rd yoke plate, the 3rd U-shaped link, the second ball-eye and forms；5th connecting tool is coupled successively by the second suspension clamp, socket-clevis eye, heavy punch piece, the 4th yoke plate, the first suspension clamp and forms。
The present invention has following technological merit: 1, adopt "T"-shaped insulator chain, ensure that the successful exchange of phase position in Bian Xiangyu on the one hand, on the other hand ensure that the secured electrical distance between two phase conductors, there is simple in construction, cheap, easy construction, reliable advantage。
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention。
Fig. 2 is the structural representation of "T"-shaped insulator chain in Fig. 1。
Fig. 3 is the concrete structure schematic diagram of left side part in Fig. 2。
Fig. 4 is the concrete structure schematic diagram of right half part in Fig. 2。
Fig. 5 is the concrete structure schematic diagram of the second connecting tool。
In figure: tower body 1, "T"-shaped insulator chain 2, first U-shaped link 2.1, imposite 2.2, link plate 2.3, towing plate 2.4, ball-eye 2.5, socket-clevis eye 2.7, first yoke plate 2.8, second U-shaped link 2.9, pull bar 2.10, right angle link plate 2.11, adjustment plate 2.12, strain clamp 2.13, bracing frame 2.14, all pressure shading rings 2.15, T-shaped yoke plate 2.17, second yoke plate 2.18, right angle link plate 2.19, 3rd yoke plate 2.20, 3rd U-shaped link 2.21, second ball-eye 2.22, socket-clevis eye 2.24, 4th yoke plate 2.25, first suspension clamp 2.26, second suspension clamp 2.27, heavy punch piece 2.28, earth wire support 3, wire jumper insulator chain 4, wire jumper 5, strain insulator string 6, hardware 7, first connecting tool 8, second connecting tool 8.1, 3rd connecting tool 8.2, 4th connecting tool 8.3, insulator 9, wire gold utensil 10。
Detailed description of the invention
Describe the performance of the present invention below in conjunction with accompanying drawing in detail, but they are not intended that limitation of the invention, only for example, simultaneously by illustrating that advantages of the present invention will become clearer from easy to understand。
With reference to shown in Fig. 1-5: one 500kV transmission line of electricity neighbour's phase conductor commutation structure of the present invention, it includes tower body 1, described tower body 1 is provided with a pair earth wire support 3, described tower body 1 is provided with on phase hanging point a "T"-shaped insulator chain 2, described a pair earth wire support 3 line centered by described tower body 1 is arranged symmetrically in both sides, described earth wire support 3 hangs with wire jumper insulator chain 4, described wire jumper insulator chain 4 hangs with wire jumper 5；Described "T"-shaped insulator chain 2 is formed " T " font by the wire jumper insulator chain 4 of the two of horizontal direction strain insulator strings 6 with vertical direction；Described "T"-shaped insulator chain 2 is made up of hardware the 7, first connecting tool the 8, second connecting tool the 8.1, the 3rd connecting tool the 8.2, the 4th connecting tool 8.3, insulator 9, wire gold utensil 10；Described hardware 7 is connected by two the first U-shaped links 2.1；The first described U-shaped link 2.1 is connected with the first connecting tool 8；The end of the first described connecting tool 8 is connected with insulator 9, and the other end of insulator 9 is connected with the insulator 9 described in side of wire by the second connecting tool 8.1, and the described insulator 9 being positioned at side of wire is connected with wire by the 3rd connecting tool 8.2；Described T-shaped yoke plate 2.17 is connected with the wire jumper insulator 2.23 of downward vertical by the 4th connecting tool 8.3；Described wire jumper insulator 2.23 phase is connected with wire jumper 5 by the 5th connecting tool 8.4；Described insulator 9 is provided with all pressure shading rings 2.15；The first described connecting tool 8 is coupled successively by adjustment plate 2.2, link plate 2.3, towing plate 2.4, ball-eye 2.5 and forms；Second connecting tool 8.1 is coupled successively by socket-clevis eye the 2.7, second yoke plate 2.18, right angle link plate 2.19, T-shaped yoke plate 2.17, first U-shaped link the 2.1, first ball-eye 2.5 and forms；The 3rd described connecting tool 8.2 is coupled successively by socket-clevis eye the 2.7, first yoke plate 2.8,2.14, two the second U-shaped links 2.9 of bracing frame, pull bar 2.10, right angle link plate 2.11, adjustment plate the 2.12, second U-shaped link 2.9, strain clamp 2.13 and forms；4th connecting tool 8.3 is coupled successively by U-shaped link the 2.21, second ball-eye 2.22 of right angle link plate the 2.11, the 3rd yoke plate the 2.20, the 3rd and forms；5th connecting tool 8.4 is coupled successively by the second suspension clamp 2.27, socket-clevis eye 2.24, heavy punch piece the 2.28, the 4th yoke plate the 2.25, first suspension clamp 2.26 and forms。
Above-mentioned unspecified part is prior art。
Claims (3)
1. 500kV transmission line of electricity neighbour's phase conductor commutation structure, it includes tower body (1), it is characterized in that: a pair earth wire support (3) is installed on described tower body (1), described tower body (1) is provided with on phase hanging point a "T"-shaped insulator chain (2), described a pair earth wire support (3) line centered by described tower body (1) is arranged symmetrically in both sides, described earth wire support (3) hangs with wire jumper insulator chain (4), described wire jumper insulator chain (4) hangs with wire jumper (5)；Described "T"-shaped insulator chain (2) is made up of hardware (7), the first connecting tool (8), the second connecting tool (8.1), the 3rd connecting tool (8.2), the 4th connecting tool (8.3), the 5th connecting tool (8.4), insulator (9), wire gold utensil (10)；Described hardware (7) is connected by two the first U-shaped links (2.1)；The first described U-shaped link (2.1) is connected with the first connecting tool (8)；The end of described the first connecting tool (8) is connected with insulator (9), the other end of insulator (9) is connected with the described insulator (9) of side of wire by the second connecting tool, and the described insulator (9) being positioned at side of wire is connected with wire by the 3rd connecting tool；Described T-shaped yoke plate (2.17) is connected with the wire jumper insulator (2.23) of downward vertical by the 4th connecting tool (8.3)；Described wire jumper insulator (2.23) is connected by the 5th connecting tool (8.4) and wire jumper (5)；Described the first connecting tool (8) is coupled successively by adjustment plate (2.2), link plate (2.3), towing plate (2.4), ball-eye (2.5) and forms；Second connecting tool (8.1) is coupled successively by socket-clevis eye (2.7), the second yoke plate (2.18), right angle link plate (2.19), T-shaped yoke plate (2.17), the first U-shaped link (2.1), the first ball-eye (2.5) and forms；The 3rd described connecting tool (8.2) is coupled successively by socket-clevis eye (2.7), the first yoke plate (2.8), bracing frame (2.14), two the second U-shaped links (2.9), pull bar (2.10), right angle link plate (2.11), adjustment plate (2.12), the second U-shaped link (2.9), strain clamp (2.13) and forms；4th connecting tool (8.3) is coupled successively by right angle link plate (2.11), the 3rd yoke plate (2.20), the 3rd U-shaped link (2.21), the second ball-eye (2.22) and forms；5th connecting tool (8.4) is coupled successively by the second suspension clamp (2.27), socket-clevis eye (2.24), heavy punch piece (2.28), the 4th yoke plate (2.25), the first suspension clamp (2.26) and forms。
2. a kind of 500kV transmission line of electricity neighbour's phase conductor commutation structure according to claim 1, it is characterised in that: described "T"-shaped insulator chain (2) is formed " T " font by the wire jumper insulator chain (4) of the two of horizontal direction strain insulator strings (6) Yu vertical direction。
3. a kind of 500kV transmission line of electricity neighbour's phase conductor commutation structure according to claim 1 and 2, it is characterised in that: it is provided with on described insulator (9) and all presses shading ring (2.15)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610263275.3A CN105703304B (en) | 2016-04-26 | 2016-04-26 | A kind of adjacent phase conductor commutation structure of 500kV transmission lines of electricity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610263275.3A CN105703304B (en) | 2016-04-26 | 2016-04-26 | A kind of adjacent phase conductor commutation structure of 500kV transmission lines of electricity |
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| Publication Number | Publication Date |
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| CN105703304A true CN105703304A (en) | 2016-06-22 |
| CN105703304B CN105703304B (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610263275.3A Active CN105703304B (en) | 2016-04-26 | 2016-04-26 | A kind of adjacent phase conductor commutation structure of 500kV transmission lines of electricity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245975A (en) * | 2016-08-02 | 2016-12-21 | 成都城电电力工程设计有限公司 | Bore across deformed steel tube rod |
| CN115841547A (en) * | 2023-01-13 | 2023-03-24 | 中国电力工程顾问集团中南电力设计院有限公司 | Method for constructing digital twin scene of power line |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202094567U (en) * | 2010-12-30 | 2011-12-28 | 国家电网公司 | Double-loop transposition hardware string-shaped system of AC EHV single-column combined strain tower |
| CN202423990U (en) * | 2011-12-13 | 2012-09-05 | 河南省电力公司平顶山供电公司 | 110 KV line suspended transposition device |
| CN205724787U (en) * | 2016-04-26 | 2016-11-23 | 中国电力工程顾问集团中南电力设计院有限公司 | A kind of 500kV transmission line of electricity neighbour's phase conductor commutation structure |
-
2016
- 2016-04-26 CN CN201610263275.3A patent/CN105703304B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202094567U (en) * | 2010-12-30 | 2011-12-28 | 国家电网公司 | Double-loop transposition hardware string-shaped system of AC EHV single-column combined strain tower |
| CN202423990U (en) * | 2011-12-13 | 2012-09-05 | 河南省电力公司平顶山供电公司 | 110 KV line suspended transposition device |
| CN205724787U (en) * | 2016-04-26 | 2016-11-23 | 中国电力工程顾问集团中南电力设计院有限公司 | A kind of 500kV transmission line of electricity neighbour's phase conductor commutation structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245975A (en) * | 2016-08-02 | 2016-12-21 | 成都城电电力工程设计有限公司 | Bore across deformed steel tube rod |
| CN115841547A (en) * | 2023-01-13 | 2023-03-24 | 中国电力工程顾问集团中南电力设计院有限公司 | Method for constructing digital twin scene of power line |
| CN115841547B (en) * | 2023-01-13 | 2024-04-19 | 中国电力工程顾问集团中南电力设计院有限公司 | Power line digital twin scene construction method |
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| CN105703304B (en) | 2017-07-28 |
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