CN103036159B - The main bus structure of medium voltage switchgear equipment - Google Patents
The main bus structure of medium voltage switchgear equipment Download PDFInfo
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- CN103036159B CN103036159B CN201210566501.7A CN201210566501A CN103036159B CN 103036159 B CN103036159 B CN 103036159B CN 201210566501 A CN201210566501 A CN 201210566501A CN 103036159 B CN103036159 B CN 103036159B
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- main bus
- shaped structure
- cushion block
- top set
- bus bar
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Abstract
The invention discloses a kind of main bus structure of medium voltage switchgear equipment, comprise 2 top set's buses and at least 3 main bus bars, also comprise the rectangular structure that cushion block is formed, at least 3 main bus bars are distributed in the side of described rectangular structure respectively, and Liang Gen top set bus and main bus bar are directly and be indirectly connected, preferably, rectangular structure is the U-shaped structure (10) of one end open interior depression.The main bus structure of a kind of Medium Voltage Switchgear uniqueness of the present invention, utilizes the U-shaped structure of cushion block four main bus bar separate rectangular to be placed, both effectively controlled kelvin effect, is conducive to again heat radiation and convection current.Verified by temperature rise test, utilize this bus structure, main bus bar temperature rise obviously declines, the current delivery solving 5000A of science and busbar utilance problem.
Description
Technical field
the present invention relates to the main bus structure of medium voltage switchgear equipment.
Background technology
the development of China's economic, also increases gradually to the demand of electric power, and the demand of domestic user to Medium Voltage Switchgear big current product is also increasing, and electric current expands 4000A, 5000A to gradually by original 1250A, 2500A, 3150A.For middle die pressing product, traditional switch cabinet main bus structure is generally rectangle busbar (see Figure 1A, 1B, 1C), electric current adopts the busbar of 2 10*80 when being 1250A, adopt the busbar of 3 10*80 during 2500A, adopts the busbar of 4 10*80 during 3150A.
from Figure 1A-1C, the electric current of cupboard is larger, and the sectional area of required copper bar is also larger.But increase gradually along with cross-sectional area of conductor is long-pending, kelvin effect is more obvious.Current density in conductor is exponentially successively decreased, and the electric current namely in conductor is concentrated in the surface of conductor.Conductor there will be a low current density areas, and as shown in Figure 2, can think and flow through in one deck that electric current is only very thin on conductive surface, this cross section being equivalent to conductor reduces, and resistance increases, and the temperature rise of conductive surface is higher.The results showed that the electric current adopting the busbar of vertically arranged 4 10*80 to bear 4000A substantially reaches capacity, the current delivery that realize 5000A just must design a kind of effective domination set skin effect, increases the bus structure of cross-ventilation heat radiation.
Summary of the invention
technical problem to be solved by this invention is to solve 5000A and above busbar in prior art medium voltage switchgear equipment and produces the problem of kelvin effect, the rectangular structure of a kind of horizontal bus and vertical bus overlap joint is provided, energy efficient dominating set skin effect, increases cross-ventilation heat radiation.
in order to solve above-mentioned technical problem, technical scheme of the present invention is: the main bus structure of medium voltage switchgear equipment, described main bus structure comprises Liang Gen top set bus and at least 3 main bus bars, it is characterized in that, also comprise the rectangular structure that cushion block is formed, at least 3 described main bus bars are distributed in the side of described rectangular structure respectively, and Liang Gen top set bus and main bus bar are directly and be indirectly connected.
preferably, described main bus structure comprises the side that Liang Gen top set bus and four main bus bars are distributed in rectangular structure, and Liang Gen top set bus and at least one main bus bar are directly and be indirectly connected.
preferably, described rectangular structure is the U-shaped structure of one end open interior depression.
preferably, described four main bus bars comprise two horizontal main bus bar main bus bars vertical with two, and described two horizontal main bus bars are distributed in top, the below of the U-shaped structure periphery that cushion block is formed respectively;
described two vertical main bus bars are distributed in front and the rear of the U-shaped structure periphery that cushion block is formed respectively;
first top set's bus in described Liang Gen top set bus is fixed on the rear, periphery of U-shaped structure, is directly connected with vertical main bus bar, and second top set's bus is fixed on the interior proceeds posterolateral of U-shaped structure.
preferably, described U-shaped structure is the one-body molded formation of cushion block.
preferably, described U-shaped structure is made up of 4 L-type cushion blocks, and wherein, two symmetrical arrangements of L-type cushion block form three sides of U-shaped structure top, and the symmetrical arrangement of two other L-type cushion block forms three sides of U-shaped structure bottom.
preferably, one is provided with in the open end of described U-shaped structure for the pad of fixing front vertical main bus bar.
advantage of the present invention is:
1. the invention provides a kind of main bus structure of Medium Voltage Switchgear uniqueness, utilize the U-shaped structure of cushion block four main bus bar separate rectangular to be placed, both effectively controlled kelvin effect, be conducive to again heat radiation and convection current.Verified by temperature rise test, utilize this bus structure, main bus bar temperature rise obviously declines, the current delivery solving 5000A of science and busbar utilance problem.
said structure mainly solves existing vertical bus and to walk abreast the technical problem of the low and tubular type bus weak heat-dissipating of connect conduction efficiency, improves the electrical efficiency of high-current switch main bus bar.
Accompanying drawing explanation
figure 1A is the main bus structure of 1250A ampere in prior art; Figure 1B is the main bus structure of 2500A ampere in prior art; Fig. 1 C is the main bus structure of 3150A ampere in prior art.
fig. 2 is the main bus bar kelvin effect schematic diagram of 3150A ampere in prior art.
fig. 3 is PIX-H 5000A main bus bar one structural representation of the present invention.
fig. 4 is the A-A directional profile structural representation of Fig. 3.
fig. 5 is the partial enlargement structural representation of Fig. 4.
fig. 6 is the structural representation that Fig. 5 overlooks from top.
fig. 7 is the structural representation of U-shaped structure and top set's bus.
wherein: 1 is insulator, 2 is the first vertical main bus bar, and 3 is horizontal main bus bar, and 4 is cushion block, and 41 is upper strata L-type cushion block, and 42 is lower floor's L-type cushion block, and 5 is the second vertical main bus bar, and 6 is pad, and 71 is first top set's bus, and 72 is second top set's bus;
10 is U-shaped structure, and 11 is above (U-shaped structure) periphery, and 12 is below (U-shaped structure) periphery, and 13 is (U-shaped structure) front, periphery, and 14 is (U-shaped structure) rear, periphery, and 14 ' is (U-shaped structure) interior proceeds posterolateral.
Embodiment
below in conjunction with drawings and Examples, the invention will be further described:
the main bus structure preferred embodiment of the medium voltage switchgear equipment of the present invention as described in Fig. 3-Fig. 7, the main bus structure of medium voltage switchgear equipment, described main bus structure comprises Liang Gen top set bus and four main bus bars, also comprise the rectangular structure that cushion block is formed, four main bus bars are distributed in the side of rectangular structure respectively, and Liang Gen top set bus and main bus bar are directly and be indirectly connected; In this preferred embodiment, rectangular structure is the U-shaped structure 10 of one end open interior depression; Four main bus bars comprise two horizontal main bus bar 3 main bus bars 2,5 vertical with two, and described two horizontal main bus bars are distributed in top 11 and the below 12 of U-shaped structure 10 periphery that cushion block is formed respectively; Two vertical main bus bars 2,5 are distributed in front, U-shaped structure 10 periphery 13 and rear 14 respectively; Liang Gen top set bus 71, first top set's bus 71 in 72 is fixed on the rear, periphery 14 of U-shaped structure 10, is directly connected with vertical main bus bar, and second top set's bus 72 is fixed on the interior proceeds posterolateral 14 ' of U-shaped structure 10; In the preferred embodiment, U-shaped structure 10 is that 4 L-type cushion blocks form U-shaped structure, wherein, two symmetrical arrangements of L-type cushion block 41 form three sides of U-shaped structure top, and the symmetrical arrangement of two other L-type cushion block 42 forms three sides of U-shaped structure bottom; In the preferred embodiment, one is provided with in the open end of U-shaped cushion block structure for the pad 6 of fixing front vertical main bus bar 5.
in another preferred embodiment of the present invention, U-shaped structure is the one-body molded formation of cushion block.Can the set-up time be saved like this, and reduce cost.
in another preferred embodiment of the present invention, top set's bus and main bus bar can also be fixed in the rectangular structure of other shape that cushion block is formed, as cube etc.
the wiring method of the main bus structure of medium voltage switchgear equipment of the present invention, comprises the steps:
(1) contact box of fixing top set bus is installed to steel plate,
(2) the U-shaped structure of the first vertical main bus bar and cushion block splicing is installed, and U-shaped structure is fixed on insulator,
(3) finally the second vertical main bus bar and horizontal main bus bar are fixed to 3 circumferential lateral surface of U-shaped structure.
as shown in Figure 5, A, B, C three-phase main bus bar is arranged vertically in " 1 " font, modularized design mode, ensure the versatility be connected with original top set bus, the former bus-bar room space of Appropriate application, while increasing main bus bar electric current, does not change existing cabinet molded dimension.
certainly, above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to people can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations of doing according to the Spirit Essence of main technical schemes of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (4)
1. the main bus structure of medium voltage switchgear equipment, it is characterized in that, described main bus structure comprises Liang Gen top set bus and four main bus bars, also comprises the rectangular structure that cushion block is formed, described rectangular structure is the U-shaped structure (10) of one end open interior depression
Described four main bus bars comprise two horizontal main bus bar (3) main bus bars (2 vertical with two, 5), described two horizontal main bus bars are distributed in top (11), below (12) of U-shaped structure (10) periphery that cushion block is formed respectively;
Described two vertical main bus bars are distributed in front (13) and rear (14) of U-shaped structure (10) periphery that cushion block is formed respectively;
Described Liang Gen top set bus (71,72) first top set's bus (71) in is fixed on the rear, periphery (14) of U-shaped structure (10), directly be connected with vertical main bus bar, second top set's bus (72) is fixed on the interior proceeds posterolateral (14 ') of U-shaped structure (10).
2. main bus structure according to claim 1, it is characterized in that, described U-shaped structure (10) is made up of 4 L-type cushion blocks, wherein, two symmetrical arrangements of L-type cushion block (41) form three sides on U-shaped structure (10) upper strata, and the symmetrical arrangement of two other L-type cushion block (42) forms three sides of U-shaped structure (10) lower floor.
3. main bus structure according to claim 1, is characterized in that, described U-shaped structure (10) is the one-body molded formation of cushion block.
4. the main bus structure according to any one of claim 1-3, is characterized in that, is provided with one for the pad (6) of fixing front vertical main bus bar (5) in the open end of described U-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210566501.7A CN103036159B (en) | 2012-12-24 | 2012-12-24 | The main bus structure of medium voltage switchgear equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210566501.7A CN103036159B (en) | 2012-12-24 | 2012-12-24 | The main bus structure of medium voltage switchgear equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103036159A CN103036159A (en) | 2013-04-10 |
| CN103036159B true CN103036159B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210566501.7A Active CN103036159B (en) | 2012-12-24 | 2012-12-24 | The main bus structure of medium voltage switchgear equipment |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3050183B1 (en) * | 2013-09-29 | 2020-05-13 | ABB Schweiz AG | Main bus-bar, branch bus-bar, transfer connector and bus-bar assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2053561A (en) * | 1932-08-11 | 1936-09-08 | American Brass Co | Bus or conductor for electrical currents |
| US2356708A (en) * | 1941-10-06 | 1944-08-22 | Joseph J Sileck | Bus construction |
| US2430510A (en) * | 1942-08-10 | 1947-11-11 | Electrical Eng Equipment Co | Electrical bus construction |
| CN102334255A (en) * | 2008-12-30 | 2012-01-25 | 施耐德电气美国股份有限公司 | Switchgear bus assembly in which material requirements are reduced without reducing performance |
| CN202997327U (en) * | 2012-12-24 | 2013-06-12 | 施耐德开关（苏州）有限公司 | Main busbar structure for medium voltage switch cabinet |
-
2012
- 2012-12-24 CN CN201210566501.7A patent/CN103036159B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2053561A (en) * | 1932-08-11 | 1936-09-08 | American Brass Co | Bus or conductor for electrical currents |
| US2356708A (en) * | 1941-10-06 | 1944-08-22 | Joseph J Sileck | Bus construction |
| US2430510A (en) * | 1942-08-10 | 1947-11-11 | Electrical Eng Equipment Co | Electrical bus construction |
| CN102334255A (en) * | 2008-12-30 | 2012-01-25 | 施耐德电气美国股份有限公司 | Switchgear bus assembly in which material requirements are reduced without reducing performance |
| CN202997327U (en) * | 2012-12-24 | 2013-06-12 | 施耐德开关（苏州）有限公司 | Main busbar structure for medium voltage switch cabinet |
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| CN103036159A (en) | 2013-04-10 |
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Effective date of registration: 20230821 Address after: No. 22 Torch North Road, Torch Park, Torch High tech Zone, Xiamen City, Fujian Province, 361115 Patentee after: SCHNEIDER ELECTRIC (XIAMEN) SWITCH EQUIPMENT CO.,LTD. Address before: No. 285 Jinfeng Road, High tech Industrial Development Zone, Suzhou City, Jiangsu Province, 215129 Patentee before: SCHNEIDER SWITCH (SUZHOU) Co.,Ltd. |