CN202633869U

CN202633869U - Wind deviation prevention structure of phase drainage wire in 110 kV line YJ-shaped iron tower

Info

Publication number: CN202633869U
Application number: CN 201220217312
Authority: CN
Inventors: 夏开胜
Original assignee: Bijie Power Supply Bureau of Guizhou Power Grid Co Ltd
Current assignee: Bijie Power Supply Bureau of Guizhou Power Grid Co Ltd
Priority date: 2012-05-15
Filing date: 2012-05-15
Publication date: 2012-12-26
Anticipated expiration: 2022-05-15

Abstract

The utility model discloses a wind deviation prevention structure of a phase drainage wire in a 110kV line YJ-shaped iron tower. The wind deviation prevention structure of the phase drainage wire in the 110kV line YJ-shaped iron tower comprises an iron tower (1), wherein a single hanging point (2) and a middle phase drainage wire (3) are arranged on the iron tower (1). A horizontal strut (4) is connected with the single hanging point (2), and two ends of the horizontal strut (4) are respectively connected with insulator chains (5). After the middle phase drainage wire (3) is connected with the two insulator chains (5) in series, the middle phase drainage wire (3) is connected with a line wire. The single hanging point is connected with the horizontal strut, the two ends of the horizontal strut are respectively connected with the insulator chains, and the middle phase drainage wire is in series connection with the two insulator chains, so that the wind deviation prevention structure of the phase drainage wire in the 110kV line YJ-shaped iron tower can efficiently improve the ability of preventing wind deviation, can efficiently completely prevent tripping operation because the distance of wind deviation is not enough, and simultaneously has the advantages of being easy to implement, low in cost and labor intensity, convenient to popularize in a wide range and the like, when the above-mentioned structure is to be improved.

Description

The anti-windage yaw structure of phase drainage thread in the 110kV circuit YJ sections tower

Technical field

The utility model relates to the anti-windage yaw structure of phase drainage thread in a kind of 110kV circuit YJ sections tower, belongs to the anti-windage yaw equipment technical field of electric power system iron tower.

Background technology

The windage yaw discharge of transmission line is to influence one of problem of line security operation always; Compare with the tripping operation that thunderbolt waits other reasons to cause, the weight and the success rate of windage yaw tripping operation are very low, in case the windage yaw tripping operation takes place; The probability that causes circuit to stop transport is just very big, has a strong impact on power supply reliability.

The phase drainage thread is swung significantly the body of the tower distance is caused tripping operation inadequately in when analyzing all existing reason that causes the windage yaw tripping operation and be YJ sections tower because of strong wind.For finding out problem reason place; The applicant is to measuring to drainage thread and body of the tower distance in the on-the-spot YJ sections tower; In to drainage thread and body of the tower distance more than 1.2 meters; Satisfy safe distance requirement, but the safe distance of this turriform regulation still is prone to cause the windage yaw tripping operation of circuit in some high altitude localitiess are prone to the environment of strong wind weather, therefore how to take more effective measures take precautions against in the YJ sections tower phase drainage thread to body of the tower discharge to cause tripping operation be present problem demanding prompt solution.

The anti-windage yaw measure that has phase drainage thread in the solution now is that the stay pipe of centering phase drainage thread takes single hanging point list string insulation to connect; Can prevent swinging up and down of stay pipe effectively like this; Guaranteed the safe distance of middle phase drainage thread and self top body of the tower; Also guarantee simultaneously the safe distance of drainage thread and other positions of body of the tower when stay pipe does not have big swing, reduced the windage yaw flashover rate of YJ sections tower to a certain extent.But; The uncontrollable stay pipe of this method swings; Equally when strong wind; Drainage thread stay pipe two ends can be done toward renaturation swing or drainage thread integral body to the skew of iron tower direction around the insulator string suspension centre, and phase drainage thread swing and not enough to horizontal direction body of the tower distance in can causing causes circuit to body of the tower discharge causing line tripping.

Summary of the invention

The technical problem that the utility model will solve provides that a kind of technological transformation workload is low, cost is low, can effectively avoid the anti-windage yaw structure of phase drainage thread in the 110kV circuit YJ sections tower of windage yaw tripping operation, can overcome the deficiency of prior art.

The technical scheme of the utility model is: the anti-windage yaw structure of phase drainage thread in the 110kV circuit YJ sections tower; It comprises iron tower; On iron tower, be provided with single hanging point and middle drainage thread mutually; On single hanging point, be connected with lateral strut, be connected with insulator string respectively at the two ends of lateral strut, middle phase drainage thread is connected with line conductor with two insulator strings serial connection back.

The length of lateral strut is 5-6m.

Compare with prior art, the utility model connects insulator string through on single hanging point, connecting lateral strut respectively at the two ends of lateral strut; Again middle phase drainage thread is serially connected on two insulator strings, can effectively improves the ability of anti-windage yaw like this, can effectively prevent the tripping operation that the windage yaw distance causes inadequately fully; This structure has the enforcement of being prone to when transforming simultaneously; Advantages such as expense is low, and labour intensity is low are convenient to promote on a large scale.

Figure DEST_PATH_518165DEST_PATH_IMAGE001

Can draw by above list data; The suspension cross-arm is installed in employing additional, behind the phase drainage thread, can guarantee that the phase drainage thread is under the condition of 0-7 level wind-force in the YJ sections tower during the two insulator strings connections of double hanging point are transformed; All keep enough safe distances, avoid circuit generation tripping operation accident with body of the tower.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Embodiment

Embodiment 1: as shown in Figure 1; On iron tower 1, be provided with single hanging point 2, on single hanging point 2, be connected with lateral strut 4, the length of lateral strut 4 is 5-6m; Two ends in lateral strut 4 are connected with insulator string 5 respectively, and middle phase drainage thread 3 is connected with line conductor with two insulator strings, 5 serial connection backs.

Claims

1. the anti-windage yaw structure of phase drainage thread in the 110kV circuit YJ sections tower; It comprises iron tower (1); On iron tower (1), be provided with single hanging point (2) and middle drainage thread mutually (3); It is characterized in that: on single hanging point (2), be connected with lateral strut (4), be connected with insulator string (5) respectively at the two ends of lateral strut (4), middle phase drainage thread (3) is connected with line conductor with two insulator strings (5) serial connection back.

2. the anti-windage yaw structure of phase drainage thread in the 110kV circuit YJ sections tower according to claim 1, it is characterized in that: the length of lateral strut (4) is 5-6m.