CN213151605U - Single-loop triple T-connection device - Google Patents

Abstract

The utility model provides a single loop trigeminy T connects device, this single loop trigeminy T connects device is used for connecing with overhead power transmission line T, single loop trigeminy T connects device is including the first steel pipe pole that sets up in order, second steel pipe pole and third steel pipe pole, first steel pipe pole, second steel pipe pole and third steel pipe pole correspond respectively with overhead power transmission line in the three-phase line connection, first steel pipe pole, all be provided with wire connecting portion on second steel pipe pole and the third steel pipe pole, all be provided with ground wire connecting portion on first steel pipe pole and the third steel pipe pole. Through the technical scheme that this application provided, can solve the problem that T among the prior art connects the device influence maintenance work.

Description

Single-loop triple T-connection device

Technical Field

The utility model relates to an electric power unit technical field particularly, relates to a single circuit trigeminy T connects device.

Background

At present, in the process of power grid construction, a single-loop or double-loop overhead line is connected out from a certain position T of an overhead power transmission line and is led to another transformer substation more and more. The method generally adopts a double-T iron tower, when in use, the double-T iron tower is erected below an original line path, an original line lead and a ground wire are respectively connected with corresponding cross arms (generally called line sides) on the front surface of the double-T iron tower, and then the double-T iron tower is connected to the T-joint cross arms (generally called T-joint sides) through the T-joint cross arms on the side surfaces and the erected lines (arranged in the vertical direction and used for connecting the line side lead and the T-joint side lead), so that T-joint work is completed.

However, by adopting the T-connection mode in the prior art, for the double-circuit line, when one circuit is subjected to power failure maintenance, because of the reason that the double-T iron tower stands the line, the other circuit must be powered off, so that the safety during maintenance can be ensured. This may affect the maintenance work or even cause the maintenance work to be impossible. Therefore, the T-shaped connecting device in the prior art affects the maintenance work.

SUMMERY OF THE UTILITY MODEL

The utility model provides a single circuit trigeminy T connects device to the T who solves among the prior art connects the device influence to overhaul the problem of work.

The utility model provides a single loop trigeminy T connects device, single loop trigeminy T connects device is used for connecing with overhead power transmission line T, single loop trigeminy T connects device is including the first steel pipe pole that sets up in order, second steel pipe pole and third steel pipe pole, first steel pipe pole, second steel pipe pole and third steel pipe pole correspond respectively with overhead power transmission line in the three-phase line connection, first steel pipe pole, all be provided with wire connecting portion on second steel pipe pole and the third steel pipe pole, all be provided with ground wire connecting portion on first steel pipe pole and the third steel pipe pole.

Further, wire connecting portion include wire cross arm and lower wire cross arm, and ground wire connecting portion include the ground wire cross arm, and the ground wire cross arm is located between wire cross arm and the lower wire cross arm.

Further, the single-circuit triple T-connection device comprises a front side, a rear side, a left side and a right side which are oppositely arranged, and the upper wire cross arm and the lower wire cross arm are both positioned on the front side or the rear side of the single-circuit triple T-connection device.

Furthermore, the upper and lower wire cross arms each extend in a direction in which the front side of the single-circuit triple T-junction device points to the rear side.

Furthermore, a first ground wire cross arm is arranged on the first steel pipe pole, a second ground wire cross arm is arranged on the third steel pipe pole, the first ground wire cross arm extends in the direction pointing to the left side on the right side of the single-circuit triple T-connection device, and the second ground wire cross arm extends in the direction pointing to the right side on the left side of the single-circuit triple T-connection device.

Furthermore, the height of the upper lead cross arm on the first steel pipe pole is higher than that of the upper lead cross arm on the second steel pipe pole, and the height of the upper lead cross arm on the second steel pipe pole is higher than that of the upper lead cross arm on the third steel pipe pole.

Furthermore, the heights of the lower lead cross arms on the first steel pipe pole, the second steel pipe pole and the third steel pipe pole are the same.

Furthermore, the height of the ground wire cross arm on the first steel pipe pole is the same as that of the ground wire cross arm on the third steel pipe pole.

Furthermore, the wire connecting part is detachably connected with the first steel pipe pole, the second steel pipe pole and the third steel pipe pole, and the ground wire connecting part is detachably connected with the first steel pipe pole and the third steel pipe pole.

Further, the first steel pipe pole, the second steel pipe pole, and the third steel pipe pole are arranged side by side.

Use the technical scheme of the utility model, this triple T of single circuit connects device all is provided with wire connecting portion including first steel-pipe pole, second steel-pipe pole and the third steel-pipe pole that sets up in order on first steel-pipe pole, second steel-pipe pole and the third steel-pipe pole, all is provided with ground wire connecting portion on first steel-pipe pole and the third steel-pipe pole. When T connection is carried out on the overhead power transmission line, T connection work can be completed by respectively connecting the first steel pipe rod, the second steel pipe rod and the third steel pipe rod with the three-phase line in the overhead power transmission line correspondingly. Because this single return circuit trigeminy T connects device does not set up the standing wire of two T iron towers, to two return circuit, when carrying out the power failure to one of them return circuit and overhauing, need not to have a power failure to another return circuit, can guarantee the normal clear of maintenance work.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a single-circuit triple T-junction device provided in an embodiment of the present invention;

fig. 2 is a front view of a single-circuit triple T-junction device provided by an embodiment of the present invention;

fig. 3 is a top view of a single-circuit triple T-junction device according to an embodiment of the present invention;

fig. 4 shows an application schematic diagram of a single-circuit triple T-junction device provided by an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a first steel pipe pole; 20. a second steel pipe pole; 30. a third steel pipe pole; 40. a wire connecting portion; 41. an upper wire cross arm; 42. a lower wire cross arm; 50. a ground wire connecting part; 511. a first ground wire cross arm; 512. a second ground cross arm; 60. a current iron tower; 70. and (5) building the iron tower.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 3, an embodiment of the present invention provides a single-circuit triple T-junction device for T-junction with an overhead power transmission line. The single-circuit triple T-junction device comprises a first steel pipe rod 10, a second steel pipe rod 20 and a third steel pipe rod 30 which are sequentially arranged, wherein the first steel pipe rod 10, the second steel pipe rod 20 and the third steel pipe rod 30 are respectively connected with a three-phase line in an overhead power transmission line correspondingly. Specifically, the first, second, and third steel pipe poles 10, 20, and 30 are each provided with a wire connection portion 40, and the first and third steel pipe poles 10 and 30 are each provided with a ground connection portion 50, so that T-connection of the single-circuit triple T-connection device to the existing overhead power transmission line can be achieved.

When the single-circuit triple T-junction device provided in this embodiment is applied to T-junction of an overhead power transmission line, T-junction work can be completed by connecting the first steel pipe pole 10, the second steel pipe pole 20, and the third steel pipe pole 30 to three-phase lines in the overhead power transmission line, respectively. Because this single return circuit trigeminy T connects device does not set up the standing wire of two T iron towers, to two return circuit, when carrying out the power failure to one of them return circuit and overhauing, need not to have a power failure to another return circuit, can guarantee the normal clear of maintenance work. And this single circuit trigeminy T connects device's major structure is three steel pipe poles, compares in the two T iron towers of prior art, has simple structure, the advantage of the assembly of being convenient for.

As shown in fig. 1, wire connecting portion 40 includes an upper wire cross-arm 41 and a lower wire cross-arm 42, and ground wire connecting portion 50 includes a ground wire cross-arm between upper wire cross-arm 41 and lower wire cross-arm 42. The connection of the single-circuit triple T-junction device to the existing overhead power transmission line can be achieved by the upper wire cross arm 41, the lower wire cross arm 42, and the ground wire cross arm. And, adopt the cross arm to connect the structure that forms T and connect the device with the steel pipe pole, have simple structure's advantage. In this embodiment, the cross arm passes through the ring flange and the fastener is connected with the steel pipe pole, has easy dismounting's advantage.

As shown in fig. 1, the single circuit triple T-connection includes oppositely disposed front, rear, left and right sides. The upper wire cross arm 41 and the lower wire cross arm 42 are both located on the front side or the rear side of the single-circuit triple T-connection device, so that the connection between the upper wire cross arm 41 and the lower wire cross arm 42 and a wire is facilitated. In the present embodiment, upper wire cross arm 41 and lower wire cross arm 42 are both located on the rear side of the single-circuit triple T-junction device.

In the present exemplary embodiment, upper wire cross arm 41 and lower wire cross arm 42 each extend in a direction pointing from the front side to the rear side of the single-circuit triple T-junction device. Specifically, one end of each of the upper and lower wire cross arms 41 and 42 is connected to the steel pipe pole, the other end of each of the upper and lower wire cross arms 41 and 42 extends in a direction from the front side of the single-circuit triple T-junction device to the rear side, and each of the upper and lower wire cross arms 41 and 42 is disposed perpendicular to the steel pipe pole.

As shown in fig. 1, the ground cross-arm includes a first ground cross-arm 511 and a second ground cross-arm 512. First steel pipe pole 10 is provided with first ground wire cross arm 511, third steel pipe pole 30 is provided with second ground wire cross arm 512, first ground wire cross arm 511 extends in the direction that the right side of single-circuit triple T-junction device points to the left side, and second ground wire cross arm 512 extends in the direction that the left side of single-circuit triple T-junction device points to the right side.

Specifically, one end of the first ground wire cross arm 511 is connected to the first steel pipe pole 10, and the other end of the first ground wire cross arm 511 extends in a direction in which the right side of the single-circuit triple T-junction device points to the left side. Specifically, one end of the second ground cross arm 512 is connected to the third steel pipe pole 30, and the other end of the second ground cross arm 512 extends in a direction in which the left side of the single-circuit triple T-joint device points to the right side.

In the present embodiment, the height of upper lead cross arm 41 on first steel pipe pole 10 is higher than the height of upper lead cross arm 41 on second steel pipe pole 20, and the height of upper lead cross arm 41 on second steel pipe pole 20 is higher than the height of upper lead cross arm 41 on third steel pipe pole 30. By adopting the above structure, the upper lead cross arms 41 on the three steel pipe poles are respectively as high as the three-phase line of the existing overhead power transmission line, which is convenient for the connection of the upper lead cross arms 41.

In other embodiments, the height of the upper wire cross arm on the steel pipe pole can be adjusted according to the actual situation of the three-phase line of the existing overhead power transmission line, so that the single-circuit triple T-connection device can be suitable for the overhead power transmission lines with various specifications.

In the present embodiment, the heights of the lower wire crossarms 42 on the first, second, and third steel- pipe poles 10, 20, and 30 are all the same, and the height of the ground wire crossarm on the first steel-pipe pole 10 is the same as the height of the ground wire crossarm on the third steel-pipe pole 30. In other embodiments, the heights of the lower wire cross-arm 42 and the ground cross-arm can be adjusted according to actual conditions.

For the convenience of assembly, the wire connection portion 40 is detachably connected to each of the first, second, and third steel pipe poles 10, 20, and 30, and the ground wire connection portion 50 is detachably connected to each of the first and third steel pipe poles 10 and 30. Specifically, the cross arm is connected with the steel pipe pole through the flange plate and the fastener, and has the advantage of convenient dismounting.

As shown in fig. 1 and 2, in the present embodiment, the first steel pipe pole 10, the second steel pipe pole 20, and the third steel pipe pole 30 are arranged side by side. In other embodiments, the first steel pipe pole 10, the second steel pipe pole 20, and the third steel pipe pole 30 may be staggered according to actual circumstances.

The single loop is a power supply loop containing three-phase wires, the triple is a whole formed by 3 independent steel pipe rods respectively connected with one phase wire, and the T joint is a connection type of connecting an independent power supply line from a certain position of an overhead power transmission line.

In this embodiment, the installation process of the single-circuit triple T-junction device is as follows:

(1) assembling each steel pipe rod;

(2) connecting the cross arm with the rod body; .

(3) And connecting a lead and a ground wire.

As shown in fig. 4, the north-side loop lead and the ground wire of the existing iron tower 60 are respectively connected with three steel pipe poles of the single-loop triple T-connection device, then connected with another single-loop triple T-connection device, and then connected with the south-side cross arm of the newly-built iron tower 70, so as to complete T-connection of a loop. The current state of the south side loop wire and the ground wire of the iron tower are directly connected with the north side cross arm of the newly-built iron tower to complete the T connection of the other loop.

The double-loop T-connection circuit adopting the mode has no place where the two loops are mutually influenced, thereby achieving the purpose of completing T connection without influencing maintenance.

Through the device that this embodiment provided, when accomplishing two return circuit T and connecing the scheme, can not cause any influence to the maintenance work of circuit operation in-process.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The single-circuit triple T-connection device is characterized by comprising a first steel pipe rod (10), a second steel pipe rod (20) and a third steel pipe rod (30) which are sequentially arranged, wherein the first steel pipe rod (10), the second steel pipe rod (20) and the third steel pipe rod (30) are respectively connected with a three-phase line in an overhead power transmission line correspondingly, lead connection parts (40) are arranged on the first steel pipe rod (10), the second steel pipe rod (20) and the third steel pipe rod (30), and ground wire connection parts (50) are arranged on the first steel pipe rod (10) and the third steel pipe rod (30).

2. Single-circuit triple tee coupling according to claim 1, characterized in that said wire connection section (40) comprises an upper wire cross-arm (41) and a lower wire cross-arm (42), said ground wire connection section (50) comprising a ground wire cross-arm, said ground wire cross-arm being located between said upper wire cross-arm (41) and said lower wire cross-arm (42).

3. Single-circuit triple tee coupling according to claim 2, characterized in that it comprises a front side, a rear side, a left side and a right side arranged opposite each other, said upper wire cross-arm (41) and said lower wire cross-arm (42) being located on the front or rear side of said single-circuit triple tee coupling.

4. Single-circuit triple T-connection according to claim 3, characterized in that the upper wire cross-arm (41) and the lower wire cross-arm (42) each extend in a direction pointing from the front side to the rear side of the single-circuit triple T-connection.

5. The single-circuit triple tee coupling of claim 3, wherein a first ground cross arm (511) is provided on the first steel pipe pole (10), a second ground cross arm (512) is provided on the third steel pipe pole (30), the first ground cross arm (511) extends in a direction in which a right side of the single-circuit triple tee coupling points to the left, and the second ground cross arm (512) extends in a direction in which the left side of the single-circuit triple tee coupling points to the right.

6. The single-circuit triple tee device according to claim 2, wherein a height of the upper wire cross arm (41) on the first steel pipe pole (10) is higher than a height of the upper wire cross arm (41) on the second steel pipe pole (20), and a height of the upper wire cross arm (41) on the second steel pipe pole (20) is higher than a height of the upper wire cross arm (41) on the third steel pipe pole (30).

7. The single-circuit triple tee device according to claim 2, wherein the heights of the lower wire crossarms (42) on the first, second and third steel pipe poles (10, 20, 30) are all the same.

8. The single-circuit triple tee device according to claim 2, wherein the height of the ground wire cross arm on the first steel pipe pole (10) is the same as the height of the ground wire cross arm on the third steel pipe pole (30).

9. The single-circuit triple tee connection device according to claim 1 or 2, wherein the wire connection part (40) is detachably connected to the first, second, and third steel pipe poles (10, 20, 30), and the ground connection part (50) is detachably connected to the first and third steel pipe poles (10, 30).

10. The single-circuit triple tee coupling of claim 1, wherein the first (10), second (20) and third (30) steel pipe poles are arranged side by side.

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