CN204361295U - The two inserted sheet of two-phase insulation of a kind of homophase two-way transition conductor in parallel - Google Patents

The two inserted sheet of two-phase insulation of a kind of homophase two-way transition conductor in parallel Download PDF

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Publication number
CN204361295U
CN204361295U CN201520040145.4U CN201520040145U CN204361295U CN 204361295 U CN204361295 U CN 204361295U CN 201520040145 U CN201520040145 U CN 201520040145U CN 204361295 U CN204361295 U CN 204361295U
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China
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conductor
parallel
transition
homophase
panels
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Expired - Fee Related
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CN201520040145.4U
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Chinese (zh)
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马纪财
马松涛
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JIANGSU WANQI ELECTRICAL APPLIANCE GROUP CO Ltd
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JIANGSU WANQI ELECTRICAL APPLIANCE GROUP CO Ltd
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Abstract

The utility model is the two inserted sheet of two-phase insulation of a kind of homophase two-way transition conductor in parallel, adopt the single-contact brace of two panels homophase two-way transition conductor in parallel, every a slice single-contact brace comprises two panels conductor and First Transition parallel conductor (21), second transition parallel conductor (22), insulation board (1) is provided with between the single-contact brace of two panels homophase two-way transition conductor in parallel, the single-contact brace of transition conductor in parallel for two panels homophase two-way is separated, the single-contact brace of two panels homophase two-way transition conductor in parallel is connected with the bus duct conductor of adjacent two-phase respectively, transition conductor insulating barrier (23) is also provided with between First Transition parallel conductor (21) and the second transition parallel conductor (22) middle part, both sides outside two panels conductor are respectively equipped with location collets (3), insulating sleeve (4) is through two panels conductor, insulation board (1) and the central authorities of locating collets (3), and the centre of insulating sleeve (4) is insulated bolt hole (5).

Description

The two inserted sheet of two-phase insulation of a kind of homophase two-way transition conductor in parallel
Technical field
The utility model relates to a kind of electric power transmission or distribution bus duct, particularly the two inserted sheet of two-phase insulation of a kind of homophase two-way of the bus duct joint of industrial frequency AC electric line transition conductor in parallel.
Background technology
In electrical power distribution electric line, the sectional area size of conductor, surface area size directly affect the ampacity of circuit, especially the alternating current transmission line of power frequency 50Hz or 60Hz, and by the impact of skin effect, conductive surface amasss has more direct relation with the size of ampacity.Because resistance can make electric energy conversion become heat energy, and bus duct system is as a kind of big current electric line, and in the transmission of electric current, capacity is larger, and heat energy is more concentrated, and resistance is larger, thus line loss constantly increases.Addressed this problem two kinds of approach, one is by bus heat radiation, suppresses temperature rise, reaches and fall low-resistance object; Two is reduce current density by increasing the long-pending or surface area of cross-sectional area of conductor, thus reaches and fall low-resistance object.The area of dissipation wherein increasing bus is an effective approach, and a lot of manufacturing enterprise is all by improving shell mechanism to obtain good radiating effect at present, reduces the energy consumption of a part.But adopt the method increasing heat radiation to have its limitation, only have reduce current density could the generation of fundamentally controlling resistance, the sectional area and the surface area that increase conductor reduce the most effective way of current density.But increase cross-sectional area of conductor and amass the increase that can bring cost, reduce product competitiveness in the market, when sectional area does not increase, with increasing the method for surface area, can obtain and not only reduce surface current density, reduce resistance but also do not increase the effect of manufacturing cost.
At present both at home and abroad bus duct manufacturing enterprise all by the conductor row Thickness Design of more than 630A at 4 ~ 10mm, this is because the requirement of the intensity of conductor row and bus duct, and bus duct structure, branch's socket, joint, input, output setting, limit the further flattening of conductor row, the surface area of conductor row is caused to be difficult to increase, therefore how when not increasing sectional area, surface area is increased further, to reduce the current density of conductive surface, reduce the impact that skin effect is brought, improving ampacity is a technical bottleneck.
The cable that power and distribution supply cable adopts is in order to reduce current density, cost-saving, jumbo transmission line often adopts the method for multi-cable parallel connection, to obtain larger surface area, due to lay position, joint the contact resistance of connection differ and each line resistance not quite identical, each line current in parallel can be caused uneven, in order to avoid this phenomenon, very high to the requirement of laying installation, however, still still there will be the problem of line fault.
Bus duct is as adopted parallel technology, transition joint is maximum technical bottleneck, when bus duct conductor employing homophase two-way parallel connection, thickness is adopted to be the busbar of 1.0 ~ 2.5mm, for the copper bus duct of the three-phase four-wire system of 5000A and 1600A, common 5000A bus duct conductor row specification is 6 × 190mm × 2 (facade Two bors d's oeuveres), and cross section ampacity is 2.2A/mm 2, temperature rise more than 65 DEG C, and the 5000A bus duct of parallel conductor, employing specification is that the two panels Flat conductive row of 2 × 360mm is in parallel, and cross section ampacity is 3.5A/mm 2, temperature rise is less than 60 DEG C; The bus duct of 1600A, common bus duct conductor row specification is 5 × 130mm, and cross section current-carrying is about 2.5A/mm 2, temperature rise more than 60 DEG C, the bus duct conductor row of the technology of employing parallel conductor is the two panels Flat conductive row parallel connection of specification 1.5 × 120mm, and cross section ampacity can reach 4.4A/mm 2, temperature rise is less than 50 DEG C.For the bus duct of 5000A, cross section ampacity is 3.5A/mm 2, temperature rise less than 60 DEG C, the bus duct cross section ampacity of 1600A reaches 4.4A/mm 2, temperature rise less than 50 DEG C, as can be seen here, homophase two-way parallel conductor bus duct technology is compared with common bus duct technology, no matter be from resources conservation, ampacity and resistance temperature rise have had very large technological break-through, but because homophase parallel conductor is limited to 1.0 ~ 2.5mm, surface area to be used ultimate attainment, and bolt connecting hole makes the loss in joint transition conductor surface and cross section inevitable, add the problem that top connection has contact resistance, if can not overcome the above problems, joint area just there will be overheated phenomenon, how at conductor busbar joint single-contact in parallel, increase transition conductor surface area and sectional area, reduce current density, increase current flow, consider contact resistance simultaneously, transition conductor is made to have certain current-carrying surplus capacity when rated current, this piecing devices technology is a great difficult problem being difficult to breakthrough, limit the development of parallel conductor bus duct technology, as parallel conductor bus duct technology realized industrialization, improve homophase two-way bus duct joint technology in parallel, it is an important step, also be absolutely necessary key technology.
Summary of the invention
Goal of the invention: the purpose of this utility model is to provide and insulate pair inserted sheet for the bus duct joint device of homophase four tunnel transition conductor in parallel, the two-phase of a kind of homophase two-way transition conductor in parallel in parallel with bus duct conductor single-contact, two-way, and the industrialization realizing homophase two-way parallel conductor bus duct is supporting.
Technical scheme: the two inserted sheet of two-phase insulation of homophase two-way of the present utility model transition conductor in parallel adopts the single-contact brace of two panels homophase two-way transition conductor in parallel, every a slice single-contact brace comprises two panels conductor and First Transition parallel conductor, second transition parallel conductor, insulation board is provided with between the single-contact brace of two panels homophase two-way transition conductor in parallel, the single-contact brace of transition conductor in parallel for two panels homophase two-way is separated, the single-contact brace of two panels homophase two-way transition conductor in parallel is connected with the bus duct conductor of adjacent two-phase respectively, transition conductor insulating barrier is also provided with between in the middle part of First Transition parallel conductor and the second transition parallel conductor, both sides outside two panels conductor are respectively equipped with location collets, insulating sleeve is through the central authorities of two panels conductor, insulation board and location collets, and the centre of insulating sleeve is insulated bolt hole, the two panels conductor insulated by middle part due to the single-contact brace of two panels homophase two-way transition conductor in parallel forms, the two inserted sheet of two-phase insulation of homophase two-way transition conductor in parallel just defines four road circuit in parallel, just form respectively the effect of one side two-way transition connecting circuit in parallel during adjacent with bus duct conductor tab place two panels conductor contact, solve the problem of bus duct conductor transition.
First Transition parallel conductor, the second transition parallel conductor thickness are all below 2mm.
First Transition parallel conductor, the second transition parallel conductor two ends are by riveting or welding conducting.
Beneficial effect: the utility model solves the joint transition Problems existing of homophase two-way parallel conductor bus duct, and have employed again the way of conductor two-way parallel connection when single-contact, the problem that when overcoming single-contact, oneway circuit surface area and section loss and contact resistance increase.By design of the present utility model, two-way parallel conductor bus duct reaches the circuit effect of four tunnel parallel connections in joint, compared with prior art: the 1. single-phase conductor of common bus duct and joint transition conductor single-contact, it is a road circuit, double contact, for two-way circuit, and the single-phase single-contact of the utility model is two-way circuit, and double contact is four road circuit; 2. the every sheet thickness of joint transition conductor brace of common bus duct is 4mm, every phase two panels is 8mm, and the every sheet thickness of the utility model is no more than 2mm, every phase four is no more than 8mm, when transition conductor total cross section is equal, the utility model ampacity improves 30%, and under specified equal electric current and condition, the utility model connection resistance and temperature rise at least decline 25%; 3. to press the design of two-way parallel conductor bus duct busbar cross-section supporting with it for the utility model, also can corresponding saving copper resource, drastically increases surplus capacity and the resource Energy Efficiency Ratio of surface area and current-carrying.Utilize the two inserted sheet of two-phase insulation of homophase two-way transition conductor in parallel, not only save conductor material, improve ampacity simultaneously, meet the needs of homophase two-way parallel conductor bus duct transition joint, make the technology of homophase two-way parallel conductor bus duct obtain perfect coupling.
Accompanying drawing explanation
Fig. 1 is the front view of the two inserted sheet of two-phase insulation of a kind of homophase two-way of the utility model transition conductor in parallel,
Fig. 2 is the left pseudosection of the two inserted sheet of two-phase insulation of a kind of homophase of the utility model two-way transition conductor in parallel.
Fig. 3 is the top plan view of the two inserted sheet of two-phase insulation of a kind of homophase two-way of the utility model transition conductor in parallel.
Have in figure: the single-contact brace 2 of insulation board 1, homophase two-way transition conductor in parallel, First Transition parallel conductor 21, second transition parallel conductor 22, transition conductor insulating barrier 23, location collets 3, insulating sleeve 4, insulated bolt hole 5.
Embodiment
The two inserted sheet of two-phase insulation of homophase two-way of the present utility model transition conductor in parallel adopts the single-contact brace of two panels homophase two-way transition conductor in parallel, every sheet of single-contact brace comprises two panels conductor, every sheet conductor thickness is below 2mm, insulation board is provided with in the middle of single-contact brace, the insulation of two panels single-contact brace is separated, single-contact brace is connected with the bus duct conductor of adjacent two-phase respectively.The two panels conductor insulated by middle part due to single-contact brace forms, the two inserted sheet of two-phase insulation of homophase two-way transition conductor in parallel just defines four road circuit in parallel, just form respectively the effect of one side two-way transition connecting circuit in parallel during adjacent with parallel conductor bus duct joint place two-phase conductor contact, solve the problem of bus duct parallel conductor one side in parallel transition.
Specific practice is: the single-contact brace adopting two panels homophase two-way transition conductor in parallel, every a slice single-contact brace comprises two panels conductor and First Transition parallel conductor, the second transition parallel conductor, insulation board is provided with between the single-contact brace of two panels homophase two-way transition conductor in parallel, the single-contact brace of transition conductor in parallel for two panels homophase two-way is separated, the single-contact brace of two panels homophase two-way transition conductor in parallel is connected with the bus duct conductor of adjacent two-phase respectively; Transition conductor insulating barrier is also provided with between in the middle part of First Transition parallel conductor and the second transition parallel conductor, both sides outside two panels conductor are respectively equipped with location collets, insulating sleeve is through the central authorities of two panels conductor, insulation board and location collets, and the centre of insulating sleeve is insulated bolt hole; The two panels conductor insulated by middle part due to the single-contact brace of two panels homophase two-way transition conductor in parallel forms, the two inserted sheet of two-phase insulation of homophase two-way transition conductor in parallel just defines four road circuit in parallel, just form respectively the effect of one side two-way transition connecting circuit in parallel during adjacent with bus duct conductor tab place two panels conductor contact, solve the problem of bus duct conductor transition.

Claims (3)

1. the two inserted sheet of two-phase insulation of a homophase two-way transition conductor in parallel, it is characterized in that the single-contact brace adopting two panels homophase two-way transition conductor in parallel, every a slice single-contact brace comprises two panels conductor and First Transition parallel conductor (21), second transition parallel conductor (22), insulation board (1) is provided with between the single-contact brace of two panels homophase two-way transition conductor in parallel, the single-contact brace of transition conductor in parallel for two panels homophase two-way is separated, the single-contact brace of two panels homophase two-way transition conductor in parallel is connected with the bus duct conductor of adjacent two-phase respectively, transition conductor insulating barrier (23) is also provided with between First Transition parallel conductor (21) and the second transition parallel conductor (22) middle part, both sides outside two panels conductor are respectively equipped with location collets (3), insulating sleeve (4) is through two panels conductor, insulation board (1) and the central authorities of locating collets (3), and the centre of insulating sleeve (4) is insulated bolt hole (5), the two panels conductor insulated by middle part due to the single-contact brace of two panels homophase two-way transition conductor in parallel forms, the two inserted sheet of two-phase insulation of homophase two-way transition conductor in parallel just defines four road circuit in parallel, just form respectively the effect of one side two-way transition connecting circuit in parallel during adjacent with bus duct conductor tab place two panels conductor contact, solve the problem of bus duct conductor transition.
2. the two inserted sheet of two-phase insulation of homophase two-way according to claim 1 transition conductor in parallel, is characterized in that First Transition parallel conductor (21), the second transition parallel conductor (22) thickness is all below 2mm.
3. the two inserted sheet of two-phase insulation of homophase two-way according to claim 1 transition conductor in parallel, is characterized in that First Transition parallel conductor (21), the second transition parallel conductor (22) two ends are by riveting or welding conducting.
CN201520040145.4U 2015-01-20 2015-01-20 The two inserted sheet of two-phase insulation of a kind of homophase two-way transition conductor in parallel Expired - Fee Related CN204361295U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104538755A (en) * 2015-01-20 2015-04-22 江苏万奇电器集团有限公司 Two-phase insulating double plugging piece of in-phase two-way parallel transition conductors
CN107546692A (en) * 2016-06-24 2018-01-05 香江科技股份有限公司 A kind of bus groove case for being easy to assembling, bus duct

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104538755A (en) * 2015-01-20 2015-04-22 江苏万奇电器集团有限公司 Two-phase insulating double plugging piece of in-phase two-way parallel transition conductors
CN107546692A (en) * 2016-06-24 2018-01-05 香江科技股份有限公司 A kind of bus groove case for being easy to assembling, bus duct

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150527

Termination date: 20160120

EXPY Termination of patent right or utility model