CN204703582U - 110kV double back becomes single time steel pipe pole - Google Patents

Abstract

The utility model relates to a 110kV double-circuit variable single-circuit steel pipe rod, which includes a rod body, a ground wire cross arm and a wire cross arm group, both the ground wire cross arm and the wire cross arm group are perpendicular to the rod body, and the wire cross arm group includes a first cross arm group arm, the second cross-arm, the third cross-arm, the fourth cross-arm, the fifth cross-arm and the sixth cross-arm, the length of the third cross-arm and the fourth cross-arm is longer than that of the first, second and sixth cross-arm The length of the fifth cross arm and the sixth cross arm; the fifth cross arm and the sixth cross arm are on the same plane and the angle between each other is 90°; the third cross arm and the fourth cross arm are on the same plane and are sandwiched between each other The angle is 90°; the first cross-arm and the second cross-arm are on the same plane and the angle between them is 180°; the fourth cross-arm is parallel to the fifth cross-arm and extends in the opposite direction relative to the rod body; The sixth cross arm is parallel and extends in opposite directions relative to the rod body. The utility model can directly carry out π-connection for the transmission lines with triangular arrangement of conductors, which is convenient for construction, saves power failure time and is low in cost.

Description

110kV double circuit transformer single circuit steel pole

technical field

The utility model relates to the technical field of high-voltage transmission lines, in particular to a 110kV double-circuit to single-circuit steel pipe rod.

Background technique

In the construction of the power grid, sometimes it is necessary to disconnect a single-circuit overhead line and connect it to a new substation respectively to share the power load and optimize the power supply system of the power grid.

For transmission lines with triangular arrangement of wires, when carrying out π connection, the existing scheme is to transform the tower of the original line, change the triangular arrangement to vertical arrangement, and then perform π connection, resulting in long power outage time and high cost. high.

Utility model content

The technical problem to be solved by the utility model is: in order to overcome the deficiencies of the prior art, the utility model provides a 110kV double-circuit to single-circuit steel pipe rod.

The technical solution adopted by the utility model to solve the technical problem is: a 110kV double-circuit variable single-circuit steel pipe rod, including a rod body, a ground wire cross arm and a wire cross arm group, and the ground wire cross arm and the wire cross arm group are all connected to the rod body Vertically, the wire cross-arm set includes a first cross-arm, a second cross-arm, a third cross-arm, a fourth cross-arm, a fifth cross-arm and a sixth cross-arm, and the third cross-arm and the fourth cross-arm The length of the cross arm is greater than the length of the first cross arm, the second cross arm, the fifth cross arm and the sixth cross arm; the fifth cross arm and the sixth cross arm are on the same plane and the angle between each other is 90°, the third cross arm The cross-arm and the fourth cross-arm are on the same plane with a mutual angle of 90°; the first cross-arm and the second cross-arm are on the same plane with a mutual angle of 180°; the fourth cross-arm and the fifth cross-arm parallel to and extend in opposite directions relative to the rod body, the third cross arm is parallel to the sixth cross arm and extend in opposite directions relative to the rod body.

The length of the first cross arm, the second cross arm, the fifth cross arm and the sixth cross arm is 4 meters, and the length of the third cross arm and the fourth cross arm is 7.3 meters.

The ground wire cross arm is a double side cross arm.

The first cross-arm and the second cross-arm form group A cross-arm, the fifth cross-arm and sixth cross-arm form B group cross-arm, the third cross-arm and fourth cross-arm form C group cross-arm, A group cross-arm, The cross-arms of group B and group C are set up and down in sequence, and the distance between the cross-arms of group A and group B, and the distance between the cross-arms of group B and group C is 4 meters.

The beneficial effect of the utility model is that, by adopting the 110kV double-circuit to single-circuit steel pipe rod of the utility model, the transmission lines with triangular arrangement of conductors can be directly connected by π, which is convenient for construction, saves power outage time, and is low in cost.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a structural schematic diagram of an optimal embodiment of a 110kV double-circuit substation single-circuit steel pipe rod of the present invention.

Fig. 2 is a schematic diagram of the transmission line wiring of the 110kV double-circuit single-circuit steel pipe pole of the utility model.

In the figure 1, rod body, 2, ground cross arm, 3, first cross arm, 4, second cross arm, 5, third cross arm, 6, fourth cross arm, 7, fifth cross arm, 8, The sixth crossarm.

Detailed ways

Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

As shown in Figure 1 and Figure 2, a 110kV double-circuit single-circuit steel pipe rod of the present invention includes a rod body 1, a ground wire cross arm 2 and a wire cross arm group, and the ground wire cross arm 2 is a double-sided cross arm bear. Both the ground wire cross arm 2 and the wire cross arm group are perpendicular to the rod body 1 . The ground wire crossarm is not shown in Fig. 2.

The wire cross-arm group includes a first cross-arm 3, a second cross-arm 4, a third cross-arm 5, a fourth cross-arm 6, a fifth cross-arm 7 and a sixth cross-arm 8, and the third cross-arm 5 And the length of the fourth cross-arm 6 is greater than the length of the first cross-arm 3, the second cross-arm 4, the fifth cross-arm 7 and the sixth cross-arm 8, the first cross-arm 3, the second cross-arm 4, the first cross-arm The length of the fifth cross arm 7 and the sixth cross arm 8 is 4 meters, and the length of the third cross arm 5 and the fourth cross arm 6 is 7.3 meters. The first cross arm 3 and the second cross arm 4 form group A cross arm, the fifth cross arm 7 and the sixth cross arm 8 form group B cross arm, the third cross arm 5 and the fourth cross arm 6 form group C cross arm , Group A cross-arm, Group B cross-arm and Group C cross-arm are set up and down in sequence, and the distance between Group A cross-arm and Group B cross-arm, and between Group B cross-arm and Group C cross-arm is 4 meters.

The fifth cross arm 7 and the sixth cross arm 8 are on the same plane with a mutual angle of 90°, the third cross arm 5 and the fourth cross arm 6 are on the same plane with a mutual angle of 90°; the first The cross arm 3 and the second cross arm 4 are on the same plane with a mutual angle of 180°, the fourth cross arm 6 is parallel to the fifth cross arm 7 and extends in opposite directions relative to the pole body 1, the third cross arm 5 and the fifth cross arm are The six cross arms 8 are parallel and extend in opposite directions relative to the rod body 1 .

The single-circuit overhead line from the original substation A to substation B is disconnected and connected to substation C respectively to form two new line passages of substation A and substation B. The steel pipe rod of the utility model is arranged at the line center position of the original line A and line B. Phase A, phase B and phase C of the three-phase conductors of the single-circuit overhead line in substation A are respectively connected to the fifth cross-arm 7, the first cross-arm 3 and the third cross-arm 5, and the three-phase conductors of the single-circuit overhead line in substation B Phase B and phase C are respectively connected to the sixth cross arm 8, the second cross arm 4 and the fourth cross arm 6, and are connected to the double-circuit line of the C substation through jumper connection.

Inspired by the above ideal embodiment according to the utility model, through the above description content, relevant staff can completely make various changes and modifications within the scope of not deviating from the technical idea of the utility model. The technical scope of this utility model is not limited to the content in the description, but must be determined according to the scope of the claims.

Claims (4)

1. A 110kV double-circuit variable single-circuit steel pipe pole, characterized in that: it comprises a pole body (1), a ground wire crossarm (2) and a wire crossarm group, and the ground wire crossarm (2) and the wire crossarm group are all connected to the The rod body (1) is vertical, and the wire cross-arm group includes the first cross-arm (3), the second cross-arm (4), the third cross-arm (5), the fourth cross-arm (6), the fifth cross-arm ( 7) and the sixth cross-arm (8), the length of the third cross-arm (5) and the fourth cross-arm (6) is greater than that of the first cross-arm (3), the second cross-arm (4), the fifth cross-arm Bear the length of (7) and the 6th cross arm (8); The fifth cross arm (7) and the sixth cross arm (8) are on the same plane with a mutual angle of 90°, the third cross arm (5) and the fourth cross arm (6) are on the same plane and mutually The included angle is 90°; the first cross arm (3) and the second cross arm (4) are on the same plane and the mutual angle is 180°, the fourth cross arm (6) is parallel to the fifth cross arm (7) And it extends in the opposite direction relative to the rod body (1), and the third cross arm (5) is parallel to the sixth cross arm (8) and extends in the opposite direction relative to the rod body (1). 2. The 110kV double-circuit transformer single-circuit steel pipe pole according to claim 1, characterized in that: the first cross arm (3), the second cross arm (4), the fifth cross arm (7) and the sixth cross arm The length of the cross arm (8) is 4 meters, and the length of the third cross arm (5) and the fourth cross arm (6) is 7.3 meters. 3. The 110kV double-circuit to single-circuit steel pipe pole according to claim 1, characterized in that: the ground wire cross arm (2) is a double-side cross arm. 4. The 110kV double-circuit variable single-circuit steel pipe pole according to claim 1, characterized in that: the first cross arm (3) and the second cross arm (4) form a group A cross arm, and the fifth cross arm (7) Together with the sixth cross arm (8) to form group B cross arm, the third cross arm (5) and fourth cross arm (6) form group C cross arm, group A cross arm, group B cross arm and group C cross arm in turn Set up and down, the distance between the cross arms of group A and group B, and the distance between the cross arms of group B and group C is 4 meters.