CN101409429B - Method for improving multi-slice rectangle conductor current-carrying capacity and large current-carrying rectangle conductor - Google Patents
Method for improving multi-slice rectangle conductor current-carrying capacity and large current-carrying rectangle conductor Download PDFInfo
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- CN101409429B CN101409429B CN 200810182721 CN200810182721A CN101409429B CN 101409429 B CN101409429 B CN 101409429B CN 200810182721 CN200810182721 CN 200810182721 CN 200810182721 A CN200810182721 A CN 200810182721A CN 101409429 B CN101409429 B CN 101409429B
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Abstract
The invention relates to a method for improving current carrying capacity of a multi-piece rectangular conductor. The method is characterized in that Z-typed busbar lapping plates are adopted to balance current in each-piece busbar in the manners of realizing coordinated transposition of the original rectangular busbar and balancing current. The invention further relates to a high current carrying rectangular conductor which comprises a rectangular busbar with single phase including four pieces, and four-piece Z-typed busbar lapping plates; the four-piece rectangular busbar is divided into two-segment eight piece busbar sub-segments, the two ends of every two piece Z-typed busbar lapping plate are fixedly connected with two piece busbar sub-segments by bolts, the busbar sub-segments and the Z-typed busbar lapping plates are alternately arranged to form a conductor group, and the central parts of the two Z-typed busbar lapping plates of the conductor group are alternately arranged. The method is used for realizing electric power receiving and distribution when the voltage is below 15kV and conveying high current to electric equipment room which controls, protects and monitors circuits; and the method is suitable for the range in which the operating current is not more than 6300A, and improves the current carrying capacity of each piece busbar.
Description
Technical field the invention belongs to the distribution facility technical field, and especially a kind of application technology that improves the rectangular bus bar current capacity specifically improves the method and the large current-carrying rectangle conductor of multi-slice rectangle conductor current-carrying capacity.
Background technology multi-disc rectangular bus bar also claims its current capacity of rectangular conductor because of being subjected to the influence of large current characteristic, it mainly is the influence of factors such as proximity effect and kelvin effect, cause supplementary load loss to increase, ampacity is not that the increase along with bus sheet number forms doubly and increases, especially whenever surpass three mutually when above, the skin effect coefficient of bus enlarges markedly.Show and prove that the engineering practicality multi-slice rectangle conductor is applicable in the loop of operating current less than 4000A from the data that can consult at present.Along with the demand of China to high-tech parameter, high reliability, premium quality product, the bus capacity of loaded current is needed increase badly.As be mainly used in the ac metal closing switch gear and indoor, outdoor enclosed busbar bridge of various types, the rectangular conductor of operating current in the big current circuit of 4000A～6300A.And when adopting the above operating current of 4000A in the multi-disc rectangular bus bar carrying loop, each sheet rectangular bus bar CURRENT DISTRIBUTION is inhomogeneous, the multi-disc rectangular bus bar is subjected to the influence of factors such as large current characteristic proximity effect and kelvin effect, and every is that four rectangular bus bar current capacity first mate descends mutually.
The summary of the invention the technical problem to be solved in the present invention is to provide a kind of method and large current-carrying rectangle conductor that improves multi-slice rectangle conductor current-carrying capacity.
One of the present invention: a kind of method that improves multi-slice rectangle conductor current-carrying capacity, it is characterized in that adopting the mode of Z font bus lapping plate realization to former rectangular bus bar coordinated transposition, euqalizing current, the electric current in each sheet bus of balance comprises the steps:
1,, therefrom blocks and be divided into two sections eight buses section with four rectangular bus bar sections of a bearing great current;
The right-hand member of four buses sections that 2, will be wherein bores connecting hole and gets four left buses sections, the left end of other four buses section is bored connecting hole get four right buses sections;
3, make four Z font bus lapping plates, and bore fixing hole at the two ends of Z font bus lapping plate; The width of Z font bus lapping plate is less than bus section width;
4, an end of two left bus sections and two Z font bus lapping plates is connected and fixed the connecting hole of two left buses section and the fixing hole of two Z font bus lapping plate one ends with bolt alternately; The other end of two right bus sections and two Z font bus lapping plates is connected and fixed the connecting hole of two right buses section and the fixing hole of two Z font bus lapping plate other ends with bolt alternately; The group of winning conductor group;
5, repeating step 4 is fixed on other two left bus sections and other two right bus sections at the two ends of other two Z font bus lapping plates; Get second group of conductor group; With the middle part cross arrangement of the Z font bus lapping plate of two conductor groups, finish bus transposition conversion again.
The present invention's two: a kind of large current-carrying rectangle conductor, comprising single-phase is four rectangular bus bar, it is characterized in that: it also comprises four Z font bus lapping plates; Four rectangular bus bars are divided into eight bus of two sections meters section, the two ends of per two Z font bus lapping plates are connected with two bus sections and bus section and Z font bus lapping plate through bolt and form a conductor group alternately, and the Z font bus lapping plate middle part of two conductor groups is arranged in a crossed manner.
Prior art stands up the multi-disc rectangular bus bar and is " 1 " font and arranges, and because of the electric current that influences that is subjected to large current characteristic distributes unevenly, causes the decline of multi-disc rectangular bus bar current capacity.
And the present invention adopts Z font bus lapping plate will divide this mode that rectangular bus bar coordinated transposition of two sections comes euqalizing current, effectively balance the electric current in each sheet bus, improved the current capacity of each sheet bus, enlarged the range of application of rectangular conductor.Be separated with Z font bus lapping plate between bus, this arrangement is to widen the bus heat dissipation channel between every group, guarantee that every rectangular bus bar all has abundant radiating surface, effectively reduced the heating of rectangular bus bar, overcome the influence of square-section to its loaded current, electric current in utilized " Z " font coordinated transposition mode equilibrium between bus every bus, reduce of the influence of factors such as its proximity effect of large current characteristic and kelvin effect to electric current in the rectangular bus bar, make rectangular bus bar satisfy maximum current-carrying with smallest cross-sectional, improve multi-disc rectangular bus bar current capacity effectively, under with the uiform section situation, can improve 10% ~ 15%; And satisfy the requirement of standard codes such as GB11022, GB3906.The present invention has passed through multiple authentication, has been applied to test in the large-current high-voltage switchgear, and has obtained good result.
The present invention adopts the operating current of four rectangular bus bars carrying 4000A～6300A, is divided into two groups with four, and every group of two installing spaces equal every thickness, and every group of installing space is more than five times of every thickness.
The present invention is used for voltage is realized electric energy below 15kV acceptance and distribution, and carries the mode of big electric current between the electric equipment that circuit is controlled, protected and monitors.
Description of drawings Fig. 1 is the structural representation of large current-carrying rectangle conductor,
Fig. 2 is that three cover large current-carrying rectangle conductors are installed in the schematic diagram in the bus bridge.
Among the figure: 1-leading portion, first rectangular bus bar, 2-leading portion, second rectangular bus bar, 3-leading portion the 3rd rectangular bus bar, 4-leading portion the 4th rectangular bus bar, 5-the one Z font lapping plate, 6-the two Z font lapping plate, 7-the three Z font lapping plate, 8-the four Z font lapping plate, 9-back segment, first rectangular bus bar, 10-back segment, second rectangular bus bar, 11-back segment the 3rd rectangular bus bar, 12-back segment the 4th rectangular bus bar, 13-hex bolts, 14-hex nut.
Embodiment method embodiment is referring to Fig. 1: the method for raising multi-slice rectangle conductor current-carrying capacity of the present invention, be to adopt the mode of Z font bus lapping plate realization to former rectangular bus bar coordinated transposition, euqalizing current, electric current in each sheet bus of balance comprises the steps:
1,, therefrom blocks and be divided into two sections eight buses section with four rectangular bus bar sections of a bearing great current; Leading portion first rectangular bus bar 1, leading portion second rectangular bus bar 2, leading portion the 3rd rectangular bus bar 3, leading portion the 41 rectangular bus bar 4 and back segment first rectangular bus bar 9, back segment second rectangular bus bar 10, back segment the 3rd rectangular bus bar 11, back segment the 4th rectangular bus bar 12;
2, the right-hand member of leading portion first rectangular bus bar 1, leading portion second rectangular bus bar 2, leading portion the 3rd rectangular bus bar 3 and leading portion the 41 rectangular bus bar 4 is bored connecting hole and get four left buses sections, the left end of back segment first rectangular bus bar 9, back segment second rectangular bus bar 10, back segment the 3rd rectangular bus bar 11, back segment the 4th rectangular bus bar 12 is bored connecting hole get four right buses sections;
3, make four Z font bus lapping plates, a Z font lapping plate 5, the 2nd Z font lapping plate 6, the 3rd Z font lapping plate 7 and the 4th Z font lapping plate 8, and at the two ends of each Z font bus lapping plate 5,6,7,8 brill fixing hole; The width of each Z font bus lapping plate 5,6,7,8 is less than half of each bus section width;
4, a Z font lapping plate 5, leading portion first rectangular bus bar 1, the 2nd Z font lapping plate 6 and leading portion second rectangular bus bar 2 be alternately at the left end of two Z font lapping plates 5,6, is connected and fixed with the fixing hole of hex bolts 13 with the connecting hole of leading portion first rectangular bus bar 1, leading portion second rectangular bus bar 2 and a Z font lapping plate 5, the 2nd Z font lapping plate 6 left ends;
Back segment the 3rd rectangular bus bar 11, a Z font lapping plate 5, back segment the 4th rectangular bus bar 12 and the 2nd Z font lapping plate 6 be alternately at the right-hand member of two Z font lapping plates 5,6, is connected and fixed with the fixing hole of hex bolts 13 with the connecting hole of back segment the 3rd rectangular bus bar 11, back segment the 4th rectangular bus bar 12 and a Z font lapping plate 5, the 2nd Z font lapping plate 6 right-hand members; The group of winning conductor group;
5, repeating step 4 is fixed on the left end of the 3rd Z font lapping plate 7, the 4th Z font lapping plate 8 with leading portion the 3rd rectangular bus bar 3, leading portion the 4th rectangular bus bar 4, back segment first rectangular bus bar 9, back segment second rectangular bus bar 10 is fixed on the right-hand member of the 3rd Z font lapping plate 7, the 4th Z font lapping plate 8; Get second group of conductor group; With the middle part cross arrangement of the Z font bus lapping plate of two conductor groups, finish bus transposition conversion again.
The left end of the one Z font bus lapping plate 5, the 2nd Z font bus lapping plate 6 is leading portion first rectangular bus bar 1 and leading portion second rectangular bus bar 2 alternately, and hex bolts 13 and hex nut 14 are fixedlyed connected four; The right-hand member of the one Z font bus lapping plate 5, the 2nd Z font bus lapping plate 6 is back segment the 3rd rectangular bus bar 11 and back segment the 4th rectangular bus bar 12 alternately, and bolt 13 and nut 14 are fixedlyed connected four; Form the first conductor group;
The left end of the 3rd Z font bus lapping plate 7, the 4th Z font bus lapping plate 8 is leading portion the 3rd rectangular bus bar 3 and leading portion the 4th rectangular bus bar 4 alternately, and hex bolts 13 and hex nut 14 are fixedlyed connected four; The right-hand member of the 3rd Z font bus lapping plate 7, the 4th Z font bus lapping plate 8 is back segment first rectangular bus bar 9 and back segment second rectangular bus bar 10 alternately, and bolt 13 and nut 14 are fixedlyed connected four; Form the second conductor group; The Z font bus lapping plate middle part of two conductor groups is arranged in a crossed manner.
Rectangular bus bar is subjected to the restriction of its cross sectional shape, preferably take to stand up arrangement, the group spacing h of the first conductor group and the second conductor group is more than five times of rectangular bus bar thickness b, and the spacing a of two rectangular bus bars of the first conductor group and the second conductor group is the thickness b that the thickness of Z font bus lapping plate equals every rectangular bus bar.
Claims (3)
1. a method that improves multi-slice rectangle conductor current-carrying capacity is characterized in that adopting the mode of Z font bus lapping plate realization to former rectangular bus bar coordinated transposition, euqalizing current, and the electric current in each sheet bus of balance comprises the steps:
Step 1, with four rectangular bus bar sections of a bearing great current, therefrom block and be divided into two sections eight buses section;
Step 2, the right-hand member of four buses sections that will be wherein bore connecting hole and get four left buses sections, the left end of other four buses section is bored connecting hole get four right buses sections;
Step 3, four Z font bus lapping plates of making, and at the two ends of Z font bus lapping plate brill fixing hole; The width of Z font bus lapping plate is less than bus section width;
One end of left bus of step 4, two section and two Z font bus lapping plates is connected and fixed the connecting hole of two left buses section and the fixing hole of two Z font bus lapping plate one ends with bolt alternately; The other end of two right bus sections and two Z font bus lapping plates is connected and fixed the connecting hole of two right buses section and the fixing hole of two Z font bus lapping plate other ends with bolt alternately; The group of winning conductor group;
Step 5, repeating step 4 are fixed on other two left bus sections and other two right bus sections at the two ends of other two Z font bus lapping plates; Get second group of conductor group; With the middle part cross arrangement of the Z font bus lapping plate of two conductor groups, finish bus transposition conversion again.
2. large current-carrying rectangle conductor, comprising single-phase is four rectangular bus bar, it is characterized in that: it also comprises four Z font bus lapping plates; Four rectangular bus bars are divided into two sections and amount to eight bus sections, the two ends of per two Z font bus lapping plates are connected with two bus sections and bus section and Z font bus lapping plate through bolt and form a conductor group alternately, and the Z font bus lapping plate middle part of two conductor groups is arranged in a crossed manner.
3. a kind of large current-carrying rectangle conductor as claimed in claim 2, it is characterized in that: described rectangular bus bar stands up layout, the group spacing (h) of the first conductor group and the second conductor group is more than five times of rectangular bus bar thickness (b), and the spacing (a) of two rectangular bus bars of the first conductor group and the second conductor group equals the thickness (b) of every rectangular bus bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810182721 CN101409429B (en) | 2008-12-04 | 2008-12-04 | Method for improving multi-slice rectangle conductor current-carrying capacity and large current-carrying rectangle conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810182721 CN101409429B (en) | 2008-12-04 | 2008-12-04 | Method for improving multi-slice rectangle conductor current-carrying capacity and large current-carrying rectangle conductor |
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| Publication Number | Publication Date |
|---|---|
| CN101409429A CN101409429A (en) | 2009-04-15 |
| CN101409429B true CN101409429B (en) | 2011-03-23 |
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| CN 200810182721 Active CN101409429B (en) | 2008-12-04 | 2008-12-04 | Method for improving multi-slice rectangle conductor current-carrying capacity and large current-carrying rectangle conductor |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8619411B2 (en) * | 2011-11-03 | 2013-12-31 | Schneider Electric, USA, Inc. | Switchgear bus assembly having reduced power loss, material and temperature |
| CN102891438B (en) * | 2012-11-06 | 2015-04-22 | 株洲南车时代电气股份有限公司 | Busbar with capability of series-parallel conversion |
| CN105845256B (en) * | 2016-06-01 | 2018-11-09 | 江苏昊玥电器有限公司 | Inorganic composite materials are integrated poured from the middle pressure busbares of heat radiating type 35kV or more |
| CN106057280B (en) * | 2016-06-01 | 2018-08-03 | 江苏昊玥电器有限公司 | Inorganic composite materials are integrated poured from the middle pressure busbares of heat radiating type 17.5KV or less |
| CN109215978B (en) * | 2018-09-29 | 2021-01-08 | 维沃移动通信有限公司 | Wireless charging coil and terminal equipment |
| CN109884371B (en) * | 2019-03-04 | 2020-02-14 | 华中科技大学 | Anti-skin-effect large-current measuring device |
| CN111029913B (en) * | 2019-11-19 | 2021-03-02 | 广东电网有限责任公司 | Busbar cross structure of direct current circuit breaker |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19714889A1 (en) * | 1996-04-02 | 1997-10-30 | Esg Hoppe Gmbh Elektrische Sch | Electrical switching system with bus=bar arrangement |
| CN2772082Y (en) * | 2004-11-23 | 2006-04-12 | 珠海经济特区光乐电控设备厂 | High current-carrying bus duct |
-
2008
- 2008-12-04 CN CN 200810182721 patent/CN101409429B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19714889A1 (en) * | 1996-04-02 | 1997-10-30 | Esg Hoppe Gmbh Elektrische Sch | Electrical switching system with bus=bar arrangement |
| CN2772082Y (en) * | 2004-11-23 | 2006-04-12 | 珠海经济特区光乐电控设备厂 | High current-carrying bus duct |
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| CN101409429A (en) | 2009-04-15 |
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