CN201846049U

CN201846049U - Busbar joint

Info

Publication number: CN201846049U
Application number: CN201020577749XU
Authority: CN
Inventors: 周和平; 康树峰; 胡平; 高承华
Original assignee: Shenzhen Woer Heat Shrinkable Material Co Ltd
Current assignee: Shenzhen Woer Heat Shrinkable Material Co Ltd
Priority date: 2010-10-15
Filing date: 2010-10-15
Publication date: 2011-05-25
Anticipated expiration: 2020-10-15

Abstract

The utility model provides a busbar joint, which comprises a busbar. A stress control body and an additional insulator are fixed at one end of the busbar. An insulation layer is arranged outside the busbar; a semiconduction layer is arranged outside the insulation layer; and a sheath is arranged outside the semiconduction layer. Compared with an electric stress controlling mode of manually lapping a stress cone in the prior art, the utility model has the advantages that (1) the busbar joint has a simple structure, and the stress control body can be uniformly produced in bulk, has high production efficiency, low production cost, uniform shape, size and specification and high appearance quality; (2) the complicated processes of manufacturing and lapping are not needed, the installation is simple and the maintenance is convenient; (3) the stress control body can improve the electric-field distribution of the busbar, relieve the action of electric stress, improve the operation reliability of the busbar and prolongs the service life of the busbar; and (4) the stress control body of the busbar joint can protect the busbar so that the busbar is prevented from the corrosion action of the environment or the corrosion influence of the environment on the busbar is reduced, thereby, the demand of the busbar on the environment is reduced, the range of application is broadened and the service life is prolonged.

Description

Busbar joint

Technical field

The utility model relates to a kind of busbar joint, relates in particular to a kind of simple in structurely, and production cost is low, the production efficiency height, can improve bus Electric Field Distribution, alleviate the busbar joint of electric stress effect.

Background technology

Bus is the connection that is used for electric substation's each step voltage configuration, and the connecting line of electric equipment such as transformer and corresponding power distribution equipment, and its effect is to compile, distribute and transmit electric energy.In running, higher voltage is arranged in the bus, produce very big electric stress effect.Be the effect of control electric stress, the busbar joint of bus is artificial wrapped stress cone mode to electric stress control employing.

Yet there is following shortcoming in above-mentioned busbar joint to the artificial wrapped stress cone mode of electric stress control employing:

First, because wrapped stress cone is finished by operating personnel are manual, even wrapped shape and size do not have strict regulation or have regulation to be difficult to reach unified specification yet, therefore, wrapped shape and size have very big randomness, difficult quality guarantee, this has influenced outward appearance, also is unfavorable for follow-up I﹠M;

The second, wrapped making flow process complexity, time and effort consuming, this causes the reduction of production efficiency;

The 3rd, artificial wrapped stress cone may can not effectively be alleviated the electric stress of bus because the artificial origin exists winding inhomogeneous, and this has not only shortened the useful life of bus, even can cause puncturing, and causes security incident.

The utility model content

It is a kind of simple in structure that the purpose of this utility model is to provide, and production cost is low, the production efficiency height, and shape and size specification are unified, and presentation quality is good, installs simply, easy to maintenance, can improve the Electric Field Distribution of bus, the busbar joint of alleviation electric stress effect.

For achieving the above object, the utility model provides a kind of busbar joint, comprises bus, and bus one end is fixed with Stress Control body and supplementary insulation.

Described bus is coated with insulating barrier.

Described insulating barrier has semiconductive layer outward, and this semiconductive layer has sheath outward.

The rounded tubulose of described bus.

Described Stress Control body is stress tube or stress cone.

In sum, the utility model busbar joint comprises bus, Stress Control body and supplementary insulation; Compare with the mode of the artificial wrapped stress cone of prior art electric stress control, have the following advantages: the first, simple in structure, the Stress Control body can be unified to produce in batches, the production efficiency height, production cost is low, shape size specification unanimity, presentation quality is good; The second, save and make wrapped numerous and diverse operation, install simple, easy to maintenance; The 3rd, the Stress Control body can improve the Electric Field Distribution of bus, alleviates the electric stress effect, makes Electric Field Distribution and electric field strength be in optimum state, thereby improves bus reliability of operation and useful life; The 4th, the Stress Control body of the utility model busbar joint can be protected bus, makes bus not be subjected to the corrosiveness of environment or reduces the infection of environment to bus, makes bus reduce environment requirement, has enlarged range of application, has prolonged useful life.

Description of drawings

Fig. 1 is the schematic cross-section after the utility model busbar joint first embodiment assembling;

Fig. 2 is the schematic cross-section after the utility model busbar joint second embodiment assembling;

Each description of reference numerals is as follows among the figure:

1. bus, 2. stress tube, 3. stress cone, 4. insulating barrier, 5. semiconductive layer, 6. sheath, 7. pyrocondensation insulated tube, 8. insulating material.

Embodiment

By describing technology contents of the present utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.

See also Fig. 1, it has disclosed first embodiment of the utility model busbar joint, and in the present embodiment, bus 1 rounded column has insulating barrier 4 outside the bus 1, semiconductive layer 5 is arranged outside the insulating barrier 4, and sheath 6 is arranged outside the semiconductive layer 5.The Stress Control body is a stress tube 2, and these stress tube 2 rounded tubuloses are the pyrocondensation stress tube.Certainly, also shrinkage stress tube of stress tube 2.

When assembling, at first determine the stripping length of insulating barrier 4, semiconductive layer 5 and sheath 6 outside the bus 1, and clean and clear up, stress tube 2 is enclosed within on the semiconductive layer 5, when stress tube 2 is the pyrocondensation stress tube, corresponding solenoid 2 adds heat fixation, and stress tube 2 is fixed on semiconductive layer 5 and the insulating barrier 4.At last heat shrink on pyrocondensation insulated tube 7 covers and the sheath 6 is fixed.In the present embodiment, supplementary insulation is a pyrocondensation insulated tube 7.

When stress tube 2 is the shrinkage stress tube, make its same contraction position identical with the pyrocondensation stress tube.

See also Fig. 2, it has disclosed second embodiment of the utility model busbar joint, the present embodiment and first embodiment are similar, its difference is: the Stress Control body is a stress cone 3, stress cone 3 is combined into conical pipe with supplementary insulation 8, and its fit is similar to first embodiment, after bus 1 is disposed, the conical pipe that stress cone 3 and supplementary insulation 8 are combined into is fixed on sheath 6, semiconductive layer 5 and the insulating barrier 4, as shown in Figure 2.

In sum, the utility model busbar joint comprises bus 1, Stress Control body and supplementary insulation 7/8; Compare with the mode of the artificial wrapped stress cone of prior art electric stress control, have the following advantages: the first, simple in structure, the Stress Control body can be unified to produce in batches, the production efficiency height, production cost is low, shape size specification unanimity, presentation quality is good; The second, save and make wrapped numerous and diverse operation, install simple, easy to maintenance; The 3rd, the Stress Control body can improve the Electric Field Distribution of bus, alleviates the electric stress effect, makes Electric Field Distribution and electric field strength be in optimum state, thereby improves bus reliability of operation and useful life; The 4th, the Stress Control body of the utility model busbar joint can be protected bus, makes bus not be subjected to the corrosiveness of environment or reduces the infection of environment to bus, makes bus reduce environment requirement, has enlarged range of application, has prolonged useful life.

The utility model is not limited to above-mentioned embodiment, and those skilled in the art that also can make multiple variation in view of the above, but any and the utility model are equal to or similar variation all should be encompassed in the scope of the utility model claim.

Claims

1. a busbar joint comprises bus, it is characterized in that: described bus one end is fixed with Stress Control body and supplementary insulation.

2. busbar joint as claimed in claim 1 is characterized in that: described bus has insulating barrier outward.

3. busbar joint as claimed in claim 2 is characterized in that: described insulating barrier has semiconductive layer outward, and this semiconductive layer has sheath outward.

4. busbar joint as claimed in claim 3 is characterized in that: the rounded tubulose of described bus.

5. as claim 1,2,3 or 4 described busbar joints, it is characterized in that: described Stress Control body is a stress tube.

6. as claim 1,2,3 or 4 described busbar joints, it is characterized in that: described Stress Control body is a stress cone.