CN103001167A - Solid insulation bus connecting structure for connection of switchgear with client side - Google Patents

Solid insulation bus connecting structure for connection of switchgear with client side Download PDF

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Publication number
CN103001167A
CN103001167A CN2012104478140A CN201210447814A CN103001167A CN 103001167 A CN103001167 A CN 103001167A CN 2012104478140 A CN2012104478140 A CN 2012104478140A CN 201210447814 A CN201210447814 A CN 201210447814A CN 103001167 A CN103001167 A CN 103001167A
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CN
China
Prior art keywords
solid insulated
insulated busbar
switchgear
conducting layer
solid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
CN2012104478140A
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Chinese (zh)
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CN103001167B (en
Inventor
陈朝晖
杨家坤
王萍萍
邓广桓
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGDONG GCA CABLE ACCESSORY CO Ltd
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GUANGDONG GCA CABLE ACCESSORY CO Ltd
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Application filed by GUANGDONG GCA CABLE ACCESSORY CO Ltd filed Critical GUANGDONG GCA CABLE ACCESSORY CO Ltd
Priority to CN201210447814.0A priority Critical patent/CN103001167B/en
Publication of CN103001167A publication Critical patent/CN103001167A/en
Application granted granted Critical
Publication of CN103001167B publication Critical patent/CN103001167B/en
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Abstract

The invention discloses a solid insulation bus connecting structure for connection of switchgear with a client side. The solid insulation bus connecting structure is inserted into a gas chamber of a switch cabinet and is electrically connected with a matched part in the gas chamber. The solid insulation bus connecting structure is characterized by comprising a solid insulation bus and a bus plug sleeved outside the solid insulation bus, two ends of the solid insulation bus extend out of the bus plug, the solid insulation bus is provided with a first outer insulating layer, the bus plug is provided with a second outer conducting layer, and the first outer insulating layer and the second outer insulating layer are mutually electrically connected and grounded. By the aid of the connecting structure, a basic structure and dimension of the switchgear do not need to be changed, the connecting structure is low in manufacturing cost and good in effect and is an improvement best reflecting economy, and mounting space and overall cost of the switchgear can be saved greatly. Besides, the solid insulation bus connecting structure is all-insulation, free of maintenance and high in protective performance.

Description

A kind of solid insulated busbar syndeton that is connected with user side for switchgear
Technical field
The present invention relates to a kind of electric cable fitting, particularly a kind of solid insulated busbar syndeton that is connected with user side for switchgear.
Background technology
In circuit on power system, middle pressure sulphur hexafluoride (SF6) gas-insulated switch is a kind of switchgear of commonly using.At present, the electrical connection of middle pressure sulphur hexafluoride (SF6) gas-insulated switch and other electric equipments and user side all is to select power cable and annex thereof to realize as the connected mode of line basically.Electric cable accessories commonly used has these two kinds of inner cone plugging formula terminal and separable connectors, but these connected modes have the following disadvantages: existing every cable line (maximum cross-section 630mm 2) can only satisfy the rated current of 1250A, when the loop of the large electric current of customer requirements (such as 2000A or 2500A), just must adopt the paired cable circuit, complexity and the overall dimension of switchgear have so just been strengthened, also to install and use simultaneously cover cable and an annex thereof more, the cost increase is very large, has limited using and developing of this class switchgear of middle pressure sulphur hexafluoride (SF6) gas-insulated switch.
In the prior art, the syndeton that is used for the cabinet splicing between switch cubicle and the switch cubicle because purposes factors different, that consider are different, applicable situations are different, can not be applied directly to being connected of switch cubicle and user side.
Summary of the invention
The object of the present invention is to provide a kind of solid insulated busbar syndeton that is connected with user side for switchgear, this syndeton compact and reasonable, simple installation, use reliable, all insulation, non-maintaining, the rated current of middle pressure sulphur hexafluoride (SF6) gas-insulated switchgear can be improved more than 1 times, can be directly used in large current circuit and do not need to change switchgear, can save significantly installing space and the complete machine cost of switchgear simultaneously.
For reaching above-mentioned purpose, the present invention adopts following technical scheme: a kind of solid insulated busbar syndeton that is connected with user side for switchgear, insert in the air chamber of switch cubicle, be electrically connected with the auxiliary equipment in the air chamber, it is characterized in that, be comprised of solid insulated busbar and the bus plug that is set in the solid insulated busbar outside, bus plug is stretched out at the solid insulated busbar two ends; Solid insulated busbar is provided with outer conducting layer one, and bus plug is provided with outer conducting layer two, is electrically connected and ground connection between outer conducting layer one and the outer conducting layer two.
According to as above scheme, solid insulated busbar inserted in the bus plug or bus plug is sleeved on solid insulated busbar just can be assembled into the solid insulated busbar syndeton outward, then insert in the air chamber, be electrically connected and fix with the auxiliary equipment in the corresponding air chamber, connect user side with the other end of solid insulated busbar, can finally realize being electrically connected of switchgear and user side.Even also have device or the equipment of voltage transitions between switchgear and the user side, this solid insulated busbar syndeton is applicable equally.
In particular, described solid insulated busbar is comprised of copper pipe and the solid insulating layer that is coated on the copper pipe outside, is realized being electrically connected with the auxiliary equipment in the air chamber by copper pipe.
As preferably, described copper pipe refers to copper tube.
As preferably, the junction of the auxiliary equipment in described copper pipe and the air chamber is provided with silver coating.
As a kind of concrete design, described bus plug is sleeve-shaped, and the cavity in it and the profile of solid insulated busbar are suitable, and the inwall of bus plug and the contact position of solid insulated busbar are provided with air-gap screened cover.Bus plug can adopt the insulation elastomeric material to make, and closely cooperates with solid insulated busbar.
Be provided with the flange that is connected for air chamber on the described solid insulated busbar; Described bus plug is positioned at the flange top.At solid insulated busbar mounting flange is set, but being connected of easy solid isolated bus syndeton and air chamber; And bus plug is set on the solid insulated busbar and be positioned at the top of flange, and flange can also play certain support and sealing function, killing three birds with one stone.
Described flange refers to metal flange; Outer conducting layer one is arranged on solid insulated busbar and is positioned at the outer part of air chamber, and outer conducting layer two only is arranged on the end that bus plug contacts with flange, is electrically connected by metal flange between outer conducting layer one and the outer conducting layer two.
Described flange is provided with seal groove, is conducive to the enhanced leaktightness effect.
Design principle of the present invention is such: adopt said structure to be used for realizing being connected of switch cubicle and user side, be equivalent to use that solid insulated busbar has substituted power cable, bus plug has substituted cable termination, and correspondingly carried out shape, structural design and optimization, considered through-current capability and the factor such as convenient is installed and draws.Because the conductor cross-sectional flow area in the solid insulated busbar is more much larger than the sectional area of power cable in the design, therefore can improve the through-current capability of middle pressure sulphur hexafluoride (SF6) gas-insulated switchgear more than 1 times; Because the solid insulated busbar surface is provided with outer conducting layer, so accomplished all insulation, non-maintaining, barrier propterty is high simultaneously.
The present invention possesses following outstanding advantages and effect with respect to prior art:
1, solid insulated busbar syndeton of the present invention, to propose for the deficiency that has the power cable connected mode now, by using this syndeton, do not need to change basic structure and the overall dimension of switchgear, low cost of manufacture, effective, be the improved procedure that best embodies economy, can significantly save installing space and the complete machine cost of switchgear;
2, the solid insulated busbar syndeton of the application of the invention improves 1 times with the rated current of middle pressure sulphur hexafluoride (SF6) gas-insulated switchgear, can be directly used in large current circuit;
3, solid insulated busbar syndeton of the present invention, all insulation, non-maintaining, barrier propterty is high.
Description of drawings
Fig. 1 is the structural representation of the solid insulated busbar among the present invention;
Fig. 2 is the structural representation of the bus plug among the present invention;
Fig. 3 is the structural representation of solid insulated busbar syndeton of the present invention;
Fig. 4 is the connection diagram of solid insulated busbar syndeton of the present invention and air chamber;
Wherein, the 1st, solid insulated busbar, 1.1 is that solid insulating layer, 2 is that bus plug, 3 is air chamber, the 4th, air chamber side plate, the 5th, sealing ring, 10 are that air-gap screened cover, 11 is that outer conducting layer two, 12 is that copper pipe, 13 is that silver coating, 14 is that flange, 15 is that outer conducting layer one, 16 is seal groove.
Embodiment
The present invention is described in further detail below in conjunction with embodiment, but embodiments of the present invention are not limited to this.
Embodiment one
As shown in Figure 1, 2, 3, solid insulated busbar syndeton of the present invention is comprised of solid insulated busbar 1 and bus plug 2.Solid insulated busbar 1 is comprised of copper pipe 12 and the solid insulating layer 1.1 that is coated on the copper pipe outside, copper pipe 12 adopts copper tube, solid insulated busbar is provided with outer conducting layer 1, be provided with on the solid insulated busbar 1 for the flange 14 that is connected with air chamber, flange refers to metal flange, and flange 14 is provided with seal groove 16.Bus plug 2 is sleeve-shaped, and the cavity in it and the profile of solid insulated busbar 1 are suitable, and the inwall of bus plug 2 and the contact position of solid insulated busbar are provided with air-gap screened cover 10, and bus plug 2 is provided with outer conducting layer 2 11.
Solid insulated busbar syndeton of the present invention is to connect like this: bus plug 2 covers are set to the outside of solid insulated busbar 1, bus plug 2 is positioned at flange 14 tops, is electrically connected by flange 14 between the outer conducting layer 2 11 of bus plug 2 and the outer conducting layer 1 of solid insulated busbar 1; Stretch out outside the bus plug 2 at solid insulated busbar 1 two ends.
Auxiliary equipment in solid insulated busbar syndeton of the present invention and the air chamber is to be connected like this (as shown in Figure 4): the auxiliary equipment in the air chamber refers to be installed in advance the bus-bar insulator (bus-bar insulator can adopt and have the interior structure of switchgear now or carry out corresponding accommodation) on the air chamber side plate 4 of gas-insulated switchgear, bus-bar insulator is provided with copper insert, copper insert is provided with the groove for the mounting spring fingertip: at first spring touch finger is installed in the groove of copper insert of bus-bar insulator, then bus plug 2 cover is installed to that (solid insulating layer of solid insulated busbar is tapered in the part that solid insulated busbar inserts air chamber on the solid insulated busbar 1 insulation conical surface, install with convenient, therefore be also referred to as the insulation conical surface), sealing ring 5 is installed in the seal groove 16 of flange 14; After bus plug 2 installs on the solid insulated busbar 1, insert together in the bus-bar insulator, at this moment, the conductor material of solid insulated busbar 1---copper pipe 12 contacts to realize to be electrically connected with spring touch finger, and copper pipe 12 is provided with silver coating 13 with the spring touch finger contact position; Realize being electrically connected and ground connection by flange 14 between the outer conducting layer 2 11 of bus plug 2 and the outer conducting layer 1 of solid insulated busbar 1, flange 14 and air chamber side plate 4 are fixed installation.
Outer conducting layer 1 can only be arranged on solid insulated busbar 1 and be positioned at air chamber 3 part outward, and outer conducting layer 2 11 only is arranged on the end that bus plug contacts with flange.
Embodiment two
Present embodiment and embodiment one difference only are, flange is not set on the solid insulated busbar 1, directly adopt installed part to install, and adopt existing hermetically-sealed construction to seal, and outer conducting layer 1 and outer conducting layer 2 11 directly are electrically connected.
Embodiment three
Present embodiment and embodiment one difference only are that flange is nonmetal flange, and outer conducting layer 1 and outer conducting layer 2 11 directly are electrically connected.
Above-described embodiment is the better execution mode of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims (8)

1. one kind is used for the solid insulated busbar syndeton that switchgear is connected with user side, insert in the air chamber of switch cubicle, be electrically connected with the auxiliary equipment in the air chamber, it is characterized in that, be comprised of solid insulated busbar and the bus plug that is set in the solid insulated busbar outside, bus plug is stretched out at the solid insulated busbar two ends; Solid insulated busbar is provided with outer conducting layer one, and bus plug is provided with outer conducting layer two, is electrically connected and ground connection between outer conducting layer one and the outer conducting layer two.
2. the solid insulated busbar syndeton that is connected with user side for switchgear according to claim 1, it is characterized in that, described solid insulated busbar is comprised of copper pipe and the solid insulating layer that is coated on the copper pipe outside, is realized being electrically connected with the installed part in the air chamber by copper pipe.
3. the solid insulated busbar syndeton that is connected with user side for switchgear according to claim 2 is characterized in that described copper pipe refers to copper tube.
4. the solid insulated busbar syndeton that is connected with user side for switchgear according to claim 2 is characterized in that, the junction of the auxiliary equipment in described copper pipe and the air chamber is provided with silver coating.
5. the solid insulated busbar syndeton that is connected with user side for switchgear according to claim 1, it is characterized in that, described bus plug is sleeve-shaped, cavity in it and the profile of solid insulated busbar are suitable, and the inwall of bus plug and the contact position of solid insulated busbar are provided with air-gap screened cover.
6. each described solid insulated busbar syndeton that is connected with user side for switchgear in 5 according to claim 1 is characterized in that, is provided with the flange that is connected for air chamber on the described solid insulated busbar; Described bus plug is positioned at the flange top.
7. the solid insulated busbar syndeton that is connected with user side for switchgear according to claim 6 is characterized in that described flange refers to metal flange; Outer conducting layer one is arranged on solid insulated busbar and is positioned at the outer part of air chamber, and outer conducting layer two only is arranged on the end that bus plug contacts with flange, is electrically connected by metal flange between outer conducting layer one and the outer conducting layer two.
8. the solid insulated busbar syndeton that is connected with user side for switchgear according to claim 6 is characterized in that described flange is provided with seal groove.
CN201210447814.0A 2012-11-09 2012-11-09 A kind of solid insulated busbar syndeton be connected with user side for switchgear Active CN103001167B (en)

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CN201210447814.0A CN103001167B (en) 2012-11-09 2012-11-09 A kind of solid insulated busbar syndeton be connected with user side for switchgear

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104300484A (en) * 2014-10-10 2015-01-21 广东安迪普科技有限公司 Charged protective jacket structure and production technology thereof
CN106711629A (en) * 2017-03-20 2017-05-24 成都盛帮双核科技有限公司 Tubular bus connecting terminal and mounting method thereof
CN107294030A (en) * 2017-07-25 2017-10-24 广东吉熙安电缆附件有限公司 A kind of pipe bus connection structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2324684Y (en) * 1998-03-24 1999-06-16 申玉鸿 Spiral jaw chuck cable connecting device
JP2002252910A (en) * 2001-02-23 2002-09-06 Showa Electric Wire & Cable Co Ltd Terminating connection part in gas
CN202949199U (en) * 2012-11-09 2013-05-22 广东吉熙安电缆附件有限公司 Solid insulation busbar connection structure for connecting switch device and user side

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2324684Y (en) * 1998-03-24 1999-06-16 申玉鸿 Spiral jaw chuck cable connecting device
JP2002252910A (en) * 2001-02-23 2002-09-06 Showa Electric Wire & Cable Co Ltd Terminating connection part in gas
CN202949199U (en) * 2012-11-09 2013-05-22 广东吉熙安电缆附件有限公司 Solid insulation busbar connection structure for connecting switch device and user side

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104300484A (en) * 2014-10-10 2015-01-21 广东安迪普科技有限公司 Charged protective jacket structure and production technology thereof
CN104300484B (en) * 2014-10-10 2017-08-25 广东安迪普科技有限公司 A kind of electrization protection nested structure and its production technology
CN106711629A (en) * 2017-03-20 2017-05-24 成都盛帮双核科技有限公司 Tubular bus connecting terminal and mounting method thereof
CN107294030A (en) * 2017-07-25 2017-10-24 广东吉熙安电缆附件有限公司 A kind of pipe bus connection structure

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