CN212751742U - Jumper string - Google Patents
Jumper string Download PDFInfo
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- CN212751742U CN212751742U CN202021117702.5U CN202021117702U CN212751742U CN 212751742 U CN212751742 U CN 212751742U CN 202021117702 U CN202021117702 U CN 202021117702U CN 212751742 U CN212751742 U CN 212751742U
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Abstract
The embodiment of the utility model provides a wire jumper cluster relates to, belongs to transmission line technical field. This wire jumper cluster includes: the device comprises a right-angle hanging plate, a ball head hanging ring, a synthetic insulator, a socket hanging plate, a supporting tube, a hoop and a wire; the right-angle hanging plate, the ball head hanging ring and the composite insulator are sequentially connected with the socket hanging plate from top to bottom, and the socket hanging plate is connected with the supporting tube; the staple bolt includes first staple bolt and second staple bolt, first staple bolt and second staple bolt parallel arrangement, and first staple bolt, second staple bolt all are connected with the stay tube is perpendicular, and the wire passes through stay tube, first staple bolt and is fixed with the second staple bolt. The utility model provides a jumper cluster passes through the stay tube to be connected with the staple bolt is perpendicular, through stay tube and the fixed wire of staple bolt, makes the wire keep away from cross arm, body of the tower, makes the clearance increase between wire and last cross arm, the lower cross arm, and then has increased the application scope of strain resistance type tower for the jumper cluster satisfies the regulation standard requirement, and then reduces the engineering investment.
Description
Technical Field
The utility model relates to a transmission line technical field relates to a wire jumper cluster.
Background
The transmission is realized by using a transformer to boost the electric energy generated by the generator and then connecting the electric energy to a transmission line through control equipment such as a breaker and the like. The overhead transmission line is a main way of electric energy transmission, and comprises a line tower, a conducting wire, a jumper string, a stay wire, a tower foundation, a grounding device and the like. The jumper string is the one that leads the jumper wire of the wire from one side of the tower to the other side through the suspension insulator string. The jumper string is used for bearing a wire or a split conductor, and can effectively reduce the wind deflection generated by the wire and the influence on the upper cross arm, the lower cross arm and the tower body. The split conductor refers to a conductor erecting mode adopted by an extra-high voltage transmission line for restraining corona discharge and reducing line reactance. The number of the split conductors of the ultrahigh-voltage power transmission line is generally 3-4.
In order to reduce the wind deflection generated by a general four-split conductor and the influence on an upper cross arm, a lower cross arm and a tower body, the wind deflection angle of the conductor and the clearance are reduced and increased by additionally arranging 1-2 common jumper strings, additionally arranging a heavy hammer sheet and the like in a project.
The designer finds that the related art has at least the following technical problems:
the mode of installing 1 ~ 2 string ordinary wire jumper cluster additional and installing heavy hammer leaf additional can't be applied to the strain insulator tower in big mountain area, and its wire inclination is big, causes to reduce the clearance to upper and lower cross arm, body of the tower.
SUMMERY OF THE UTILITY MODEL
The utility model discloses implement and provide a wire jumper cluster, can solve and install 1 ~ 2 ordinary wire jumper clusters additional and install modes such as heavy hammer leaf additional and can lead to being located the strain insulator tower in mountain area because the wire angle of inclination is big, cause the clearance to upper and lower cross arm, body of the tower to reduce, unsatisfied regulation standard requirement's technical problem. The specific technical scheme is as follows:
a jumper string, the jumper string comprising:
the device comprises a right-angle hanging plate, a ball head hanging ring, a synthetic insulator, a socket hanging plate, a supporting tube, a hoop and a wire;
the right-angle hanging plate, the ball head hanging ring and the composite insulator are sequentially connected with the socket hanging plate from top to bottom, and the socket hanging plate is connected with the supporting tube;
the anchor ear includes first anchor ear and second anchor ear, first anchor ear with second anchor ear parallel arrangement, first anchor ear the second anchor ear all with the stay tube is perpendicular to be connected, the wire passes through the stay tube first anchor ear is fixed with the second anchor ear.
In an optional embodiment, the support tube includes a first support tube and a second support tube disposed in parallel and at an interval, the first support tube is located above the second support tube, the first support tube is connected to the upper end of the first hoop and the upper end of the second hoop, and the second support tube is connected to the lower end of the first hoop and the lower end of the second hoop.
In an optional embodiment, the jumper string further comprises: a first clip, the wire including a first phase wire, the first phase wire being fixed with the first support tube by the first clip.
In an optional embodiment, the jumper string further comprises: the wire also comprises a second phase wire, and the second phase wire is fixed with the second supporting tube through the second wire clamp.
In an alternative embodiment, the first support tube comprises: the extension tube comprises a first extension tube and a second extension tube, wherein the first extension tube is sleeved in the second extension tube, and the first extension tube can extend and retract in the second extension tube.
In an optional embodiment, the first elongated tube further comprises: the first limiting part is connected with the first elongated pipe, the second elongated pipe is provided with a first limiting hole, and the first elongated pipe abuts against the first limiting hole in the second elongated pipe through the first limiting part, so that the first elongated pipe and the second elongated pipe keep the reference length.
In an alternative embodiment, the second support tube comprises: the third lengthening pipe is sleeved in the fourth lengthening pipe, and the third lengthening pipe can stretch out and draw back in the fourth lengthening pipe.
In an optional embodiment, the second support tube further comprises: the second limiting part is connected with the second elongated tube, a second limiting hole is formed in the fourth elongated tube, and the third elongated tube abuts against the second limiting hole in the fourth elongated tube through the second limiting part, so that the third elongated tube and the fourth elongated tube keep the reference length.
In an optional embodiment, the jumper string further comprises: the first parallel hanging plate and the second parallel hanging plate;
the first hoop comprises a first section and a second section, and the first section and the second section are connected through the first parallel hanging plate;
the second hoop comprises a third section and a fourth section, and the third section and the fourth section are connected through the second parallel hanging plate.
In an optional embodiment, the material of the support tube is a carbon support tube.
In an optional embodiment, the first anchor ear, the second anchor ear and the support tube are detachably connected.
The above technical scheme of the utility model following beneficial effect has at least:
the jumper cluster that this application embodiment provided passes through the stay tube and is connected with the staple bolt is perpendicular, through stay tube and the fixed wire of staple bolt, makes the wire keep away from cross arm, body of the tower, makes the clearance increase between wire and the last cross arm, the lower cross arm, has advanced the application scope who has increased strain resistance type tower for the jumper cluster satisfies regulation standard requirement, and then reduces the engineering investment.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic diagram of a jumper string provided in an embodiment of the present invention;
fig. 2 is a schematic diagram of a jumper string structure provided by an embodiment of the present invention.
Reference numerals:
the cable comprises a 1-right-angle hanging plate, a 2-ball head hanging ring, a 3-composite insulator, a 4-socket hanging plate, a 5-supporting tube, a 51-first supporting tube, a 52-second supporting tube, a 6-hoop, a 61-first hoop, a 62-second hoop, a 71-first parallel hanging plate, a 72-second parallel hanging plate, an 8-lead, an 81-first-phase lead, a 82-second-phase lead, a 9-first cable clamp and a 10-second cable clamp.
Detailed Description
Unless defined otherwise, all technical terms used in the embodiments of the present invention have the same meaning as commonly understood by one of ordinary skill in the art.
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The transmission is realized by using a transformer to boost the electric energy generated by the generator and then connecting the electric energy to a transmission line through control equipment such as a breaker and the like. The overhead transmission line is a main way of electric energy transmission, and comprises a line tower, a ground wire, a jumper string, a stay wire, a tower foundation, a grounding device jumper string and the like. The jumper string is an important component of the overhead transmission line and comprises hardware fittings and insulators, the jumper string is used for bearing tension of one wire or a split wire, wind deflection and sag of the wire can be effectively avoided, and the structural size of a tower is reduced. In order to reduce the wind deflection of the lead and the influence on the upper cross arm, the lower cross arm and the tower body, the vertical load of the lead is increased by additionally arranging 1-2 common jumper strings, additionally arranging a heavy hammer sheet and the like in the engineering, so that the wind deflection angle of the lead is reduced, and the gap is increased. The mode such as install 1 ~ 2 cluster ordinary wire jumper cluster additional and install heavy hammer leaf can lead to being located the strain insulator tower in mountain area because the wire angle of inclination is big, causes to reduce the clearance to upper and lower cross arm, body of the tower, unsatisfied regulation standard requirement. In view of this, the present application provides a jumper string to solve the above technical problem.
A jumper string, as shown in fig. 1, comprising:
the device comprises a right-angle hanging plate 1, a ball head hanging ring 2, a synthetic insulator 3, a socket hanging plate 4, a supporting tube 5, a hoop 6 and a lead 8;
the right-angle hanging plate 1, the ball head hanging ring 2 and the synthetic insulator 3 are sequentially connected with the socket hanging plate 4 from top to bottom, and the socket hanging plate 4 is connected with the supporting tube 5;
staple bolt 6 includes first staple bolt 61 and second staple bolt 62, first staple bolt 61 and second staple bolt 62 parallel arrangement, and first staple bolt 61, second staple bolt 62 all are connected perpendicularly with stay tube 5, and wire 8 is fixed through stay tube 5, first staple bolt 61 and second staple bolt 62.
The above technical scheme of the utility model following beneficial effect has at least:
the jumper cluster that this application embodiment provided passes through stay tube 5 and is connected perpendicularly with staple bolt 6, through stay tube 5 and 6 fixed wire 8 of staple bolt, makes wire 8 keep away from cross arm, body of the tower, makes wire 8 and last cross arm, the clearance increase between the lower cross arm, has increased the application scope of strain resistance type tower for the jumper cluster satisfies the regulation standard requirement, and then reduces the engineering investment.
The jumper string provided by the embodiment of the present application will be described in further detail below by way of an optional embodiment.
The split conductor refers to a conductor erecting mode adopted by an extra-high voltage transmission line for restraining corona discharge and reducing line reactance. That is, each phase of wire is composed of several sub-wires with smaller diameter, and the sub-wires are arranged at a certain distance and in a symmetrical polygon shape and are arranged on the vertexes of the regular polygon. The number of the split conductors of the common split conductor is generally not more than 4, and the number of the split conductors of the ultrahigh-voltage power transmission line is generally 3-4.
The split conductors are generally formed by 2-4 conductors with smaller cross sections of each phase of conductor, the distance between the split conductors is 0.2-0.5 m, the split conductors can play a role of increasing the diameter of the conductor, and compared with a large conductor with the same total cross section, the split conductors are not easy to generate corona and have higher power transmission capacity. The split conductor is mainly applied to lines with voltage of 220 kilovolt and above. Generally, 220kV is two-splitting, 500kV is four-splitting, 750kV is six-splitting, and 1000kV is eight-splitting. The jumper string provided by the embodiment of the application is suitable for a four-split conductor.
The conducting device connected with the strain clamp of the conducting wires on the two sides of the strain tower is called an overhead transmission line jumper. The jumper wire is used for keeping the electrified conducting wire and the conducting part of the tower at a sufficient electric distance. The towers that do not typically use jumpers are tower-type towers because the wires are already at a sufficient electrical distance from the tower. The jumper string is called the jumper string, where the jumper of the conductor is led back from one side of the tower to the other side of the tower through the suspension insulator string. In addition, not all jumper towers need jumper strings, and the purpose of installing the jumper strings is to ensure the electrical distance of the jumper to the tower body, so whether the jumper strings are needed to meet the actual electrical safety distance requirement. Some jumper towers may require one jumper string, some may require two jumper strings, and some may require four jumper strings.
It should be noted that, when the power transmission line is overhead, a pole tower is required, the pole tower includes a tangent tower and a tension tower, and generally speaking, an insulator string connected with the pole tower is stretched by the tension tower.
In an alternative embodiment, the support tube 5 includes a first support tube 51 and a second support tube 52 that are disposed in parallel and spaced apart from each other, the first support tube 51 is located above the second support tube 52, the first support tube 51 is connected to the upper ends of the first and second anchor ears 61 and 62, and the second support tube 52 is connected to the lower ends of the first and second anchor ears 61 and 62.
This application is through setting up first stay tube 51 and second stay tube 52, and the wire 8 of will four divisions is fixed with first stay tube 51 and second stay tube 52, and it is too close to have avoided the distance between first phase wire 81 and the second phase wire 82, unsatisfied the safe electric distance between the wire 8.
It should be noted that the distance between the first support tube 51 and the second support tube 52 may be determined according to the power transmission requirement of the power transmission line, which is not limited in the embodiment of the present application.
As an example, the first support tube 51 may be in bolted connection with the upper ends of the first and second anchor ears 61 and 62, and the second support tube 52 may be in bolted connection with the lower ends of the first and second anchor ears 61 and 62, so as to ensure the connection stability between the first and second support tubes 51 and 52 and the first and second anchor ears 61 and 62, and also facilitate the replacement of the first and second support tubes 51 and 52.
In an optional embodiment, the jumper string further comprises: the first clip 9, the conductor 8 includes a first phase conductor 81, and the first phase conductor 81 is fixed to the first support tube 51 by the first clip 9.
The wire jumper cluster that this application embodiment provided fixes wire 8 through the stay tube. Further, the first phase wire 81 is fixed to the first support tube 51 by the first clip 9, so that the first phase wire 81 is prevented from sagging, and the distance between the first phase wires 81 is difficult to satisfy the safe electrical distance.
As an example, the first wire clamp 9 may be a wire clamp having an arc shape by which the first phase wire 81 is fastened to the first support tube 51.
The first wire clamp 9 can be made of stainless steel or pig iron, the service life of the wire clamp is prolonged, the replacement period of the first wire clamp 9 is shortened, and the preparation cost of the jumper string is reduced.
It should be noted that the number of the first wire frames may be plural, for example, 2 to 4, and the specific number may be determined according to the length of the first support tube 51, for example, when the length of the first support tube 51 is longer, the number of the first wire clips 9 may be larger, for example, 4, and when the length of the first support tube 51 is shorter, the number of the first wire clips 9 may be smaller, for example, 2, and the number of the first wire frames is not limited thereto in the embodiment of the present application.
In an optional embodiment, the jumper string further comprises: the second clamp 10, the conductor 8 further includes a second phase conductor 82, and the second phase conductor 82 is fixed to the second support tube 52 by the second clamp 10.
Further, the second phase conductors 82 are fixed to the second support pipe 52 by the second clip 10, so that the second phase conductors 82 are prevented from sagging, and the distance between the second phase conductors 82 is difficult to satisfy the safe electrical distance.
As an example, the second wire clamp 10 may be a wire clamp having an arc shape by which the second phase conductor 82 is fastened to the second support pipe 52.
The second wire clamp 10 can be made of stainless steel or pig iron, so that the service life of the wire clamp is prolonged, the replacement period of the second wire clamp 10 is shortened, and the preparation cost of the jumper string is reduced.
It should be noted that the number of the second wire racks may be multiple, for example, 2 to 4, the specific number may be determined according to the length of the second support tube 52, for example, when the length of the second support tube 52 is longer, the number of the second wire clamps 10 may be greater, for example, 4, and when the length of the second support tube 52 is shorter, the number of the second wire clamps 10 may be smaller, for example, 2, and the number of the second wire racks is not limited in this embodiment of the application.
In an alternative embodiment, the first support tube 51 comprises: the first lengthening pipe is sleeved in the second lengthening pipe, and the first lengthening pipe can stretch out and draw back in the second lengthening pipe.
It should be noted that the first supporting tube 51 provided in the embodiment of the present application can be replaced as needed, that is, when the first supporting tube 51 with a longer length is needed, the length of the first supporting tube 51 can be replaced. In the present application, the first elongated tube is arranged to be retractable in the second elongated tube, and when the length of the first supporting tube 51 needs to be adjusted, the first elongated tube can be pulled out or pushed into the second elongated tube.
It should be noted that, since the first elongated tube needs to extend into the second elongated tube, the diameter of the first elongated tube is smaller than the diameter of the second elongated tube.
In an optional embodiment, the first elongated tube further comprises: the first limiting part is connected with the first elongated pipe, the second elongated pipe is provided with a first limiting hole, and the first elongated pipe abuts against the first limiting hole in the second elongated pipe through the first limiting part, so that the first elongated pipe and the second elongated pipe keep the reference length.
As an example, the first position-limiting member may be a position-limiting rod or a position-limiting protrusion, and the diameter of the first position-limiting rod or the diameter of the position-limiting protrusion is matched with the diameter of the first position-limiting hole. The embodiment of the present application does not limit this.
In an alternative embodiment, the second support tube 52 comprises: the third lengthening pipe is sleeved in the fourth lengthening pipe, and the third lengthening pipe can stretch out and draw back in the fourth lengthening pipe.
It should be noted that the second support tube 52 provided in the embodiment of the present application can be replaced as needed, that is, when a longer second support tube 52 is needed, the length of the second support tube 52 can be replaced. And this application can stretch out and draw back in the fourth extension pipe through setting up the third extension pipe, when needs adjust the length of first stay tube 51, can pull out the third extension pipe outwards or push the third extension pipe in the fourth extension pipe.
It should be noted that, since the third elongated tube needs to extend into the fourth elongated tube, the diameter of the third elongated tube is smaller than that of the fourth elongated tube.
In an alternative embodiment, the second support tube 52 further comprises: the second limiting part is connected with the second elongated tube, a second limiting hole is formed in the fourth elongated tube, and the third elongated tube abuts against the second limiting hole in the fourth elongated tube through the second limiting part, so that the third elongated tube and the fourth elongated tube keep the reference length.
As an example, the second position-limiting member may be a position-limiting rod or a position-limiting protrusion, and the diameter of the second position-limiting rod or the diameter of the position-limiting protrusion is matched with the diameter of the second position-limiting hole. The embodiment of the present application does not limit this.
In an optional embodiment, the jumper string further comprises: a first parallel hanging plate 71 and a second parallel hanging plate 72;
the first hoop 61 comprises a first section and a second section, and the first section and the second section are connected through a first parallel hanging plate 71;
the second hoop 62 includes a third section and a fourth section, which are connected by a second parallel hanging plate 72.
In an alternative embodiment, the support tube is made of carbon support tube.
In an alternative embodiment, the first anchor ear 61, the second anchor ear 62 and the support tube are detachably connected.
Can dismantle through setting up between first staple bolt 61, the second staple bolt 62 and the stay tube and be connected, conveniently dismantle when needs change the stay tube.
Through preliminary measurement and calculation, the jumper string provided by the embodiment of the application can be used for increasing the height difference application range of a common strain tower by 30% -40%, and the gap can be increased by more than 5%.
Compared with the conventional jumper string, in a mountain area, if the jumper string provided by the embodiment of the application is adopted, the weight of the tension tower can be reduced by about 5%, and the tower weight can be reduced by 1t by taking a 500kV double-loop iron tower as an example.
Compared with the common jumper string, the jumper string provided by the embodiment of the application does not need to be modified to increase the construction cost very little. In conclusion, the jumper string provided by the embodiment of the application can effectively reduce the tower weight of the strain tower in the mountainous area, and further reduces the engineering investment.
The above description is only illustrative of the present invention, and should not be taken as limiting the scope of the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A jumper string, comprising:
the socket comprises a right-angle hanging plate (1), a ball head hanging ring (2), a synthetic insulator (3), a socket hanging plate (4), a supporting tube (5), a hoop (6) and a lead (8);
the right-angle hanging plate (1), the ball head hanging ring (2) and the composite insulator (3) are sequentially connected with the socket hanging plate (4) from top to bottom, and the socket hanging plate (4) is connected with the supporting tube (5);
the hoop (6) comprises a first hoop (61) and a second hoop (62), and the first hoop (61) and the second hoop (62) are arranged in parallel;
the first hoop (61) and the second hoop (62) are vertically connected with the supporting tube (5), and the wire (8) is fixed through the supporting tube (5), the first hoop (61) and the second hoop (62).
2. The jumper string according to claim 1, wherein the support tube (5) comprises a first support tube (51) and a second support tube (52) which are arranged in parallel and at intervals, the first support tube (51) is connected with the upper ends of the first and second hoops (61, 62), and the second support tube (52) is connected with the lower ends of the first and second hoops (61, 62).
3. The jumper string of claim 2, further comprising: a first clip (9), the wire (8) comprising a first phase wire (81), the first phase wire (81) being secured with the first support tube (51) by the first clip (9).
4. The jumper string of claim 3, further comprising: a second clamp (10), the conductor (8) further comprising a second phase conductor (82), the second phase conductor (82) being secured to the second support tube (52) by the second clamp (10).
5. Jumper string according to any of claims 2-4, wherein the first support tube (51) comprises: the extension tube comprises a first extension tube and a second extension tube, wherein the first extension tube is sleeved in the second extension tube, and the first extension tube can extend and retract in the second extension tube.
6. The jumper string of claim 5, wherein the first elongated tube further includes: the first limiting part is connected with the first elongated pipe, the second elongated pipe is provided with a first limiting hole, and the first elongated pipe abuts against the first limiting hole in the second elongated pipe through the first limiting part, so that the first elongated pipe and the second elongated pipe keep the reference length.
7. The jumper string according to claim 5, wherein the second support tube (52) comprises: the third lengthening pipe is sleeved in the fourth lengthening pipe, and the third lengthening pipe can stretch out and draw back in the fourth lengthening pipe.
8. The jumper string according to claim 7, wherein the second support tube (52) further comprises: the second limiting part is connected with the second elongated tube, a second limiting hole is formed in the fourth elongated tube, and the third elongated tube abuts against the second limiting hole in the fourth elongated tube through the second limiting part, so that the third elongated tube and the fourth elongated tube keep the reference length.
9. The jumper string according to any one of claims 2-4, further comprising: a first parallel hanging plate (71) and a second parallel hanging plate (72);
the first hoop (61) comprises a first section and a second section, and the first section and the second section are connected through the first parallel hanging plate (71);
the second hoop (62) comprises a third section and a fourth section, and the third section and the fourth section are connected through the second parallel hanging plates (72).
10. The jumper string according to any one of claims 2 to 4, wherein the first anchor ear (61), the second anchor ear (62) and the support tube are detachably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021117702.5U CN212751742U (en) | 2020-06-16 | 2020-06-16 | Jumper string |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021117702.5U CN212751742U (en) | 2020-06-16 | 2020-06-16 | Jumper string |
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| CN212751742U true CN212751742U (en) | 2021-03-19 |
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| CN202021117702.5U Active CN212751742U (en) | 2020-06-16 | 2020-06-16 | Jumper string |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113241699A (en) * | 2021-05-28 | 2021-08-10 | 贵州电网有限责任公司 | Wind deflection preventing device for jumper wire insulator of power transmission line tension tower |
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2020
- 2020-06-16 CN CN202021117702.5U patent/CN212751742U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113241699A (en) * | 2021-05-28 | 2021-08-10 | 贵州电网有限责任公司 | Wind deflection preventing device for jumper wire insulator of power transmission line tension tower |
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