CN106128561A

CN106128561A - A kind of trapezoidal heat resisting diameter enlarging bus bar of modified model

Info

Publication number: CN106128561A
Application number: CN201610772757.1A
Authority: CN
Inventors: 彭二磊; 王琴; 蒋鑫
Original assignee: Wuxi Jiangnan Cable Co Ltd
Current assignee: Wuxi Jiangnan Cable Co Ltd
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2016-11-16

Abstract

The invention discloses a kind of trapezoidal heat resisting diameter enlarging bus bar of modified model, including by expanding aluminum pipe and the trapezoidal conductive layer being stranded in expanding aluminum pipe periphery, described trapezoidal conductive layer include many along the circumferentially distributed trapezoidal conduction single line of expanding aluminum pipe, between adjacent two trapezoidal conduction single lines, be face between trapezoidal conduction single line and expanding aluminum pipe and contact；Being provided with bracing frame in described expanding aluminum pipe, this bracing frame center is open circles, and the surrounding supporter of relative open circles is provided with four semi-circular recesses.The simple in construction of the present invention, change original aluminum pipe as the structure supported, owing to aluminum pipe is softer, not anti-extrusion, so adding bracing frame in aluminum pipe, it considerably increases the diameter of bus in the case of not increasing conductive layer area by bracing frame, and then meets the high altitude localities requirement to diameter enlarging bus bar.

Description

A kind of trapezoidal heat resisting diameter enlarging bus bar of modified model

Technical field

The present invention relates to electric wire field, be specifically related to a kind of trapezoidal heat resisting diameter enlarging bus bar of modified model.

Background technology

Bus is generally used for electrical equipments such as connection and the transformator of voltage power distribution equipments at different levels in transformer station and corresponding The effect of the connection of power distribution equipment, i.e. bus is to collect, distribute and transmit electric energy.In the power transformation being positioned at High aititude geographical position Standing, the electric field of bus used by it, magnetic field, audible noise and radio interference level can substantially exceed related request, and this is not only Can bring environmental pollution, and can produce a large amount of energy loss, the best technique means solving these problems are that increase bus is straight Footpath.

At present, the traditional method increasing bus diameter is: 1, increase steel core or the area of aluminium lamination, but this will certainly increase mother The weight of line, thus add the load of bus two bottom bearing tower；2, employing takes out the mode of stock, i.e. the mother of common lay configuration Line extracts some single lines relatively to increase bus stranded layer out, thus reach expanding purpose, but this expanding mode of stock of smoking Enlarging rate is very limited, it is difficult to meet the high altitude localities requirement to bus.

To this end, Chinese invention patent ZL201420223833.X, disclose a kind of transformer station aluminum pipe supporting type heat resisting and expand Footpath bus, including expanding stay tube made of aluminum and the conductive layer being stranded in expanding stay tube periphery.But, this diameter enlarging bus bar Have the disadvantage that 1, the cross section of its heat-resisting aluminium alloy single line is circle, when by twisted for the aluminium alloy single line of many circular cross-sections Behind the periphery of embossing aluminum pipe, adjacent two aluminium alloy single lines are linear contact lay, there are gap the most between the two, thus cause mother Line outer surface curvature radius changes, and then causes bus surface field intensity to raise, and reduces the initial corona voltage of bus, limit Make the bus use in high altitude localities transformer station；2, after many aluminium alloy single lines are stranded, its stranded compactness is low；3, aluminum is used Pipe is as support, and aluminum is the most softer, it is easy to be crushed, and support effect is undesirable.

It addition, the conductive layer of a lot of buses all uses Z-type and S type conduction single line, between Z-type and Z-type conduction single line closely Degree is not tight, the loosest.

Summary of the invention

In order to overcome the deficiencies in the prior art, it is provided that the trapezoidal heat-resisting expansion that a kind of supportive is more preferable, compactness is good Footpath bus.

For achieving the above object, the present invention provides a kind of trapezoidal heat resisting diameter enlarging bus bar of modified model, including by expanding aluminum pipe and Being stranded in the trapezoidal conductive layer of expanding aluminum pipe periphery, described trapezoidal conductive layer includes many along circumferentially distributed trapezoidal of expanding aluminum pipe Conduction single line, between adjacent two trapezoidal conduction single lines, is face between trapezoidal conduction single line and expanding aluminum pipe and contacts；Described ladder The outer peripheral face of shape conduction single line is plane, and in adjacent two trapezoidal conduction single lines, the limit of a trapezoidal conduction single line outer peripheral face Edge extends to the edge of another root trapezoidal conduction single line outer peripheral face；It is provided with bracing frame, in this bracing frame in described expanding aluminum pipe The heart is open circles, and the surrounding supporter of relative open circles is provided with four semi-circular recesses.

Preferably, described trapezoidal conduction single line, including be positioned at outer peripheral face long leg, be positioned at inner peripheral surface short leg, with And waist on the side, described short leg is mutually stranded with the outer peripheral face of expanding stay tube, the waist of adjacent two conduction single lines Mutually stranded.

The beneficial effects of the present invention is:

Compared with prior art, the simple in construction of the present invention, change the original aluminum pipe structure as support, due to aluminum pipe relatively Soft, not anti-extrusion, so adding bracing frame in aluminum pipe, it comes big in the case of not increasing conductive layer area by bracing frame Add greatly the diameter of bus, and then meet the high altitude localities requirement to diameter enlarging bus bar；Described trapezoidal conduction single line, including position In the long leg of outer peripheral face, the short leg being positioned at inner peripheral surface and waist on the side, described short leg and expanding stay tube Outer peripheral face mutually stranded, adjacent two conduction single lines waist mutually stranded, conduction single line between compactness fine, it is not easy to pine Dissipate.Meanwhile, the outer peripheral face unusual light of the conductive layer being made up of many conduction single lines.

Accompanying drawing explanation

Fig. 1 is the structural representation of the present invention.

Detailed description of the invention

Below in conjunction with the accompanying drawings and specific embodiment, it is further elucidated with the present invention, it should be understood that these embodiments are merely to illustrate The present invention rather than limit the scope of the present invention, after having read the present invention, each to the present invention of those skilled in the art The amendment planting the equivalent form of value all falls within the application claims limited range.

As it is shown in figure 1, the present invention provides a kind of trapezoidal heat resisting diameter enlarging bus bar of modified model, including by expanding aluminum pipe 2 and stranded At the trapezoidal conductive layer 3 of expanding aluminum pipe periphery, described trapezoidal conductive layer 3 includes that many are led along circumferentially distributed trapezoidal of expanding aluminum pipe Electricity single line 31, between adjacent two trapezoidal conduction single lines 31, is face between trapezoidal conduction single line 31 and expanding aluminum pipe 2 and contacts； The outer peripheral face of described trapezoidal conduction single line is plane, and in adjacent two trapezoidal conduction single lines, a trapezoidal conduction single line periphery The edge in face extends to the edge of another root trapezoidal conduction single line outer peripheral face；It is provided with bracing frame 1 in described expanding aluminum pipe, this Support 1 center is open circles 11, and the surrounding supporter of relative open circles is provided with four semi-circular recesses 12, and this bracing frame makes Bus has more steadiness, is not afraid of extruding, and then meet the high altitude localities requirement to diameter enlarging bus bar, the most effectively reduce simultaneously The load of bus two bottom bearing tower, to lighten the load, extends the service life of bus.

Wherein, described trapezoidal conduction single line, including be positioned at outer peripheral face long leg, be positioned at inner peripheral surface short leg and Waist on the side, described short leg is mutually stranded with the outer peripheral face of expanding stay tube, the waist phase of adjacent two conduction single lines Stranded, the compactness of this structure is stronger than Z-shaped and S-shaped compactness.

The above is only the preferred embodiment of the present invention, it is noted that come for those of ordinary skill in the art Saying, under the premise without departing from the principles of the invention, it is also possible to make some modification and improvement, these also should be regarded as belonging to the present invention Protection domain.

Claims

1. the trapezoidal heat resisting diameter enlarging bus bar of modified model, it is characterised in that: include by expanding aluminum pipe and be stranded in outside expanding aluminum pipe The trapezoidal conductive layer in week, described trapezoidal conductive layer include many along the circumferentially distributed trapezoidal conduction single line of expanding aluminum pipe, adjacent two Between root trapezoidal conduction single line, it is face between trapezoidal conduction single line and expanding aluminum pipe and contacts；Outside described trapezoidal conduction single line Side face is plane, and in adjacent two trapezoidal conduction single lines, the edge of a trapezoidal conduction single line outer peripheral face extends to another root The edge of trapezoidal conduction single line outer peripheral face；Being provided with bracing frame in described expanding aluminum pipe, this bracing frame center is open circles, relatively The surrounding supporter of open circles is provided with four semi-circular recesses.

2. according to the trapezoidal heat resisting diameter enlarging bus bar of the modified model described in claim 1, it is characterised in that: described trapezoidal conduction single line, Including being positioned at the long leg of outer peripheral face, the short leg being positioned at inner peripheral surface and waist on the side, described short leg is with expanding The outer peripheral face propping up stay tube is mutually stranded, and the waist of adjacent two conduction single lines is mutually stranded.