CN201238172Y

CN201238172Y - Bus corner support expansion hardware fittings of extra-high voltage AC pipe

Info

Publication number: CN201238172Y
Application number: CNU2008200422041U
Authority: CN
Inventors: 周邦彦; 姜广东; 沈建宏
Original assignee: NANJING CURCUIT APPLIANCE FACTORY
Current assignee: NANJING CURCUIT APPLIANCE FACTORY
Priority date: 2008-07-25
Filing date: 2008-07-25
Publication date: 2009-05-13
Anticipated expiration: 2018-07-25

Abstract

The utility model discloses a tubular busbar angle supporting expansion hardware of an extra-high voltage AC pipe. The utility model comprises a saddle which is provided with a first connection end and a second connection end; a first movable wire clamp is connected with the first connection end in a sliding way; a second movable wire clamp is connected with the second connection end in a sliding way; and a shielding ring is also arranged on the saddle. Compared with the prior art, the movable wire clamps are connected with the saddle in a sliding way, thereby leading the tubular busbar fixed on the movable wire clamps to have the expansion function, eliminating a strain generated by the expansion and contraction of the tubular busbar, avoiding the insulator of a strut from being strained on the side direction to generate the possibility unbeneficial to a flexural moment. As the shielding ring is arranged on the saddle, the integral anticorona effect is good, thereby largely ensuring the whole device to reliably run for a long period. The current division function of the tubular busbar angle supporting expansion hardware of an extra-high voltage AC pipe to the tubular busbar can be realized by connecting a current division wire clamp with the tubular busbar, thereby separating the functions of current division and supporting. The utility model not only has the characteristics of reliable supporting, but also has good current division performance and simultaneously effectively reduces the temperature rise.

Description

Extra-high-voltage alternating current pipe bus corner supports flexible gold utensil

Technical field

The utility model belongs to power transmission line equipment field, particularly a kind of female class gold utensil of pipe that is applied to 1000kV AC extra high voltage transformer station.

Background technology

In the transformer station of 500kV and following grade, the pipe bus is generally linearly arranged.The compensation of stroke all realizes than being easier on the support of pipe bus and the rectilinear direction.Simultaneously, its corona required value is not bloom of 318kV.And in 1000kV AC extra high voltage transformer station, because the space corner occurred during the pipe busbar arrangement, its corona required value is not bloom of 699kV.From electric angle, in process was boosted in test, the pipe bus was corner and arranges than the Zao corona that produces of straight line.

Summary of the invention

Technical problem to be solved in the utility model is: at 1000kV AC extra high voltage transformer station pipe bus corner, provide a kind of extra-high-voltage alternating current pipe bus corner to support flexible gold utensil.

Technical solution of the present utility model is: a kind of pipe bus corner supports flexible gold utensil, comprise bearing with first link and second link, slidely connect the first movable wire clamp on described first link, slidely connect the second movable wire clamp on described second link, on described bearing, also be provided with a shading ring.

Described first link is provided with first chute, described second link is provided with second chute, the described first movable wire clamp lower end is arranged in described first chute, and the described second movable wire clamp lower end is arranged in described second chute.

The utility model pipe bus corner supports flexible gold utensil, comprises bearing, movable wire clamp and shading ring composition.Bearing is connected with post insulator, plays the female effect of stay pipe.Movable wire clamp and bearing are slidingly connected, and the link of bearing is provided with chute, and movable wire clamp lower end is connected in the bearing chute, can be free to slide; The upper end of movable wire clamp is connected stationary pipes mother with pipe is female.Fixing water conservancy diversion flexing line clamp on the pipe mother carries out the water conservancy diversion commutation by lead again, and can freely stretch.Shading ring is installed in the bearing top, and a whole set of gold utensil is played shielding action.

Compared with prior art, the utlity model has following advantage:

1, the connection activity wire clamp that on bearing, slides of the utility model, thus make the pipe mother who is fixed on the movable wire clamp have contractile function, eliminated the female stress that expands with heat and contract with cold and produce of pipe, make post insulator avoid lateral force to produce the possibility of unfavorable moment of flexure.

2, the utility model pipe bus corner supports flexible gold utensil, to managing female guide functions, can be by on the pipe mother, connecting the water conservancy diversion wire clamp, thereby water conservancy diversion and support function are separated, with two independently parts realize, not only have the support reliable characteristics, and its good guide performance, effectively reduced temperature rise simultaneously.

3, the utility model has been installed shading ring on bearing, and is whole anticorona effective, thus strong assurance package unit operation reliably and with long-term.

Description of drawings

Fig. 1 is that right-angle type pipe bus corner supports flexible gold utensil.

Fig. 2 is that the C of Fig. 1 is to zoomed-in view.

Fig. 3 is that obtuse angle formula pipe bus corner supports flexible gold utensil.

Wherein, 1, bearing, 11, first link, 12, second link, 2, movable wire clamp, 21, the first movable wire clamp, 22, the second movable wire clamp, 3, shading ring, 4, the water conservancy diversion wire clamp, 5, pipe is female, 6, chute.

Embodiment

Below in conjunction with accompanying drawing, the utility model is elaborated.

The utility model pipe bus corner supports flexible gold utensil and comprises bearing 1, movable wire clamp 2, and shading ring 3, bearing 1 comprise first link 11 and second link 12 that has angle, and as shown in Figure 1, the angle of first link 11 and second link 12 is the right angle.Figure 3 shows that first link 11 and second link, 12 angles are the obtuse angle.The first movable wire clamp 21 is slidingly connected on first link 11, the first movable wire clamp 21 connects a pipe female 5, the second movable wire clamp 22 is slidingly connected on second link 12, the second movable wire clamp connects another root pipe mother 5, on two pipes female 5, be fixedly connected with a water conservancy diversion wire clamp 4 respectively, and connect and carry out the water conservancy diversion commutation two pipes are female by lead, on bearing 1, also be fixedly connected with anticorona shading ring 3.

Offer chute 6 respectively on first link 11 of bearing and second link 12, the lower end of movable wire clamp 2 is positioned at chute 6, and can prolong chute 6 and slide, and sees shown in Figure 2.

Claims

1, a kind of extra-high-voltage alternating current pipe bus corner supports flexible gold utensil, comprise bearing (1) with first link (11) and second link (12), it is characterized in that: slidely connect the first movable wire clamp (21) on described first link (11), slidely connect the second movable wire clamp (22) on described second link (12), on described bearing (1), also be provided with a shading ring (3).

2, extra-high-voltage alternating current pipe bus corner according to claim 1 supports flexible gold utensil, it is characterized in that: described first link (11) is provided with first chute, described second link (12) is provided with second chute, described first movable wire clamp (21) lower end is arranged in described first chute, and described second movable wire clamp (22) lower end is arranged in described second chute.