CN204645806U - Three times overhead wire divides pole - Google Patents

Abstract

The utility model relates to a three-circuit overhead line branch rod, which comprises a rod body, a ground wire cross-arm group and a three-layer wire cross-arm group arranged up and down, the ground wire cross-arm group and the wire cross-arm group are both perpendicular to the rod body, and each layer of wire The cross-arm group includes A cross-arm, B cross-arm and C cross-arm. The A cross-arm, B cross-arm and C cross-arm are all single-sided cross-arms and the angle between them is 120°. The three-layer wire cross-arm The three-layer A cross-arms in the cross-arm group are parallel to each other, the three-layer B cross-arms in the three-layer wire cross-arm group are parallel to each other, and the three-layer C cross-arms in the three-layer wire cross-arm group are parallel to each other. The branch pole of the three-circuit overhead line of the utility model can complete the branch connection of the three circuits with only three layers of cross arms, which is not only low in cost, but also convenient in construction and reliable in operation.

Description

Three-way overhead line branch pole

technical field

The utility model relates to the technical field of high-voltage transmission lines, in particular to a branch pole of a three-circuit overhead line.

Background technique

The existing three-circuit overhead line branch steel pipe pole, as shown in Figure 1, generally adopts six layers of cross arms for T connection, and the distance between each layer of cross arms is generally 3 meters, so the height of the pole increases, which is not only expensive but also extremely difficult to construct. .

Utility model content

The technical problem to be solved by the utility model is: in order to overcome the deficiency of the branch steel pipe pole of the existing three-circuit overhead line, the utility model provides a branch pole of the three-circuit overhead line.

The technical scheme adopted by the utility model to solve the technical problem is: a branch rod of a three-circuit overhead line, including a rod body, a ground wire cross-arm group and a three-layer wire cross-arm group arranged up and down, a ground wire cross-arm group and a wire cross-arm group. The cross-arm groups are all perpendicular to the rod body. Each layer of wire cross-arm group includes cross-arm A, cross-arm B and cross-arm C. Cross-arm A, cross-arm B and cross-arm C are all single-sided The included angle is 120°, the three-layer A cross-arms in the three-layer wire cross-arm group are parallel to each other, the three-layer B cross-arms in the three-layer wire cross-arm group are parallel to each other, and the three-layer C cross-arms in the three-layer wire cross-arm group are parallel to each other. parallel to each other.

The ground wire cross-arm group includes three ground wire cross-arms arranged on one side, the angle between two of the three ground wire cross-arms is 120°, and the three ground wire cross-arms are connected to A in each layer of wire cross-arm group. The cross-arm, B cross-arm and C cross-arm are arranged in parallel one by one.

The distance between two adjacent layers of wire cross-arm groups is 3 meters.

The lengths of A cross arm, B cross arm and C cross arm are all 3.2 meters.

The beneficial effect of the utility model is that the branch pole of the three-circuit overhead line of the utility model can complete the branching of the three circuits with only three layers of cross arms, which is not only low in cost, but also convenient in construction and reliable in operation.

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 a branch steel pipe pole of an existing three-circuit overhead line.

1, rod body among Fig. 1, 2, ground wire cross arm, 3, wire cross arm.

Fig. 2 is a structural schematic diagram of a three-circuit overhead line branch pole of the present invention.

Fig. 3 is a schematic diagram of the three-circuit wiring of the branch rod of the three-circuit overhead line of the present invention.

In Fig. 2 and Fig. 3 1, rod body, 2, ground wire cross arm, 3, wire cross arm group, 31, A cross arm, 32, B cross arm, 33, C cross arm, 4, A circuit, 5, B circuit, 6, C circuit.

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 2-3, a three-circuit overhead line branch rod of the present utility model includes a rod body 1, a ground wire cross-arm group and a three-layer wire cross-arm group 3 arranged up and down, a ground wire cross-arm group and a wire cross-arm group. The arm groups 3 are all perpendicular to the rod body 1, and each layer of wire arm groups 3 includes A arm 31, B arm 32, and C arm 33, and the A arm 31, B arm 32, and C arm 33 are all single Side cross arms and the angle between any two is 120°, the three-layer A cross-arms 31 in the three-layer wire cross-arm group 3 are parallel to each other, and the three-layer B cross-arms 32 in the three-layer wire cross-arm group 3 are parallel to each other , the three-layer C cross-arms 33 in the three-layer conductor cross-arm group 3 are parallel to each other.

The ground wire cross-arm group includes three ground wire cross-arms 2 arranged on one side, the angle between the three ground wire cross-arms 2 is 120°, and the three ground wire cross-arms 2 are connected to each layer of wire cross-arm groups. A cross-arm 31, B cross-arm 32 and C cross-arm 33 in 3 are arranged in parallel one by one. Ground wire crossarm 2 is not drawn among Fig. 3.

The distance between two adjacent layers of wire cross-arm groups 3 is 3 meters, and the lengths of A cross-arm 31 , B cross-arm 32 and C cross-arm 33 are all 3.2 meters.

The usage method of the three-circuit overhead line branch bar of the present utility model is as follows:

As shown in Figure 3, the double-circuit overhead line from the original substation C to substation B, one of which requires a single open loop π to enter substation A, and the other circuit is still connected to substation C and substation B. Adopt the branch bar of the utility model, its A cross arm 31, B cross arm 32 and C cross arm 33 are arranged at an angle of 120° with the line direction. The A circuit 4, the B circuit 5 and the C circuit 6 are respectively connected to the A cross arm 31, the B cross arm 32 and the C cross arm 33.

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. three times overhead wires divide pole, it is characterized in that: comprise the body of rod (1), ground wire cross-arm group and three layer conductor cross-arm groups (3) setting up and down, ground wire cross-arm group and wire cross-arm group (3) are all vertical with the body of rod (1), every layer conductor cross-arm group (3) comprises A cross-arm (31), B cross-arm (32) and C cross-arm (33), A cross-arm (31), B cross-arm (32) and C cross-arm (33) are one-sided cross-arm and angle is between any two 120 °, three layers of A cross-arm (31) in three layer conductor cross-arm groups (3) are parallel to each other, three layers of B cross-arm (32) in three layer conductor cross-arm groups (3) are parallel to each other, three layers of C cross-arm (33) in three layer conductor cross-arm groups (3) are parallel to each other.

2. three times overhead wires as claimed in claim 1 divide pole, it is characterized in that: described ground wire cross-arm group comprises the ground wire cross-arm (2) of three one-sided settings, three ground wire cross-arms (2) angle is between any two 120 °, and three ground wire cross-arms (2) be arranged in parallel with A cross-arm (31), B cross-arm (32) and C cross-arm (33) one_to_one corresponding in every layer conductor cross-arm group (3).

3. three times overhead wires as claimed in claim 1 divide pole, it is characterized in that: the spacing between adjacent two layers wire cross-arm group (3) is 3 meters.

4. three times overhead wires as claimed in claim 1 divide pole, it is characterized in that: the length of A cross-arm (31), B cross-arm (32) and C cross-arm (33) is 3.2 meters.