CN201312058Y - Main bus switching device in high voltage switchgear - Google Patents
Main bus switching device in high voltage switchgear Download PDFInfo
- Publication number
- CN201312058Y CN201312058Y CNU2008201798432U CN200820179843U CN201312058Y CN 201312058 Y CN201312058 Y CN 201312058Y CN U2008201798432 U CNU2008201798432 U CN U2008201798432U CN 200820179843 U CN200820179843 U CN 200820179843U CN 201312058 Y CN201312058 Y CN 201312058Y
- Authority
- CN
- China
- Prior art keywords
- conductor
- bus bar
- conversion equipment
- main bus
- bus
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Patch Boards (AREA)
Abstract
The utility model mainly relates to a main bus conductor switching in a high voltage switchgear, in particular to a switching device for a tube main bus and a rectangular main bus. The main bus switching device for a high voltage switchgear comprises a rectangular bus conductor (1) and a tube bus conductor (4), and a connecting piece (3) is arranged on the tube bus conductor (4). The main bus switching device is mainly characterized in that a switching device (2) is arranged between the rectangular bus conductor (1) and the connecting piece (3) arranged on the tube bus conductor (4). The utility model has the beneficial effects that a connection method between the rectangular and the tube main bus conductors in the high voltage switchgear is disclosed, so as to solve the switching problem of the round tube bus and the rectangular bus in a main bus system in the prior high voltage switchgear, and the switching is reliable and efficient especially at higher rated current. The main bus switching device solves the dynamic stability problem under the conditions of heat generating and short circuit when heavy-current exists at the joint through experiments and studies, and elements favorable for heat dissipation and ventilation are designed on the switching device.
Description
Technical field
The utility model relates generally to a kind of main bus conductor conversion of high-tension switch cabinet, relates in particular to tubular main bus bar of high-tension switch cabinet and rectangle main bus bar conversion equipment.
Background technology
Bus-bars conductor is meant to be used as in voltage switchgear and connects each electric equipment and compile, distribute, transmit electric energy.Especially its quality of main bus bar system directly affects the quality of switch cubicle product, and the probability of failure in switch cubicle is less, but in case generation will cause large-area power-cuts, destroys the stability of electric power system, is one of fault the most serious in the electric equipment.Reasonably the conductor structure design will directly have influence on the electric power system reliability of operation, also be a crucial ring in the switchgear design, play important effect.
From present data, the main bus bar of existing high-tension switch cabinet generally is that each independent segment adopts a kind of main bus bar form, or all is rectangle, or all is form such as tubular; Conversion is generally carried out between main bus bar and branch bar.
The bus-bars conductor material is mainly based on copper, aluminium, and by the shape branch, bus-bars conductor commonly used mainly contains rectangle, tubular, flute profile, two D shape, diamond etc.
The rectangular conductor bus is used commonplace at present, it allows electric current relevant with its AC resistance and cooling surface area, rectangular bus bar has bigger area of dissipation, when cross section is identical, the girth of rectangular bus bar is bigger than circle, good heat dissipation effect, it is little to have kelvin effect, and processes, installs simple.Because the sectional area of wall scroll conductor maximum is 1250mm
2When being used to carry big electric current, many bus groups that rectangular bus bar is arranged side by side of normal employing, but because the heat radiation situation of rectangular bus bar arranged side by side degenerates, current-carrying is not that the increase with bus sheet number forms doubly and increases, especially the skin effect coefficient of bus enlarges markedly when above at three, and supplementary load loss increase.
The skin effect coefficient of tubular conductor bus is little, and current-carrying is bigger.Have and take up room for a short time, arrange obviously, clear etc., generally be used in 4000A or the above circuit more.Than rectangular bus bar conductor economical with materials 24% with weight.But its cooling surface area is less, and intraluminal heat is difficult for shedding.Making precision height connects complexity, and design and manufacturing are proposed higher requirement.Tubular bus is at termination and post insulator place, and its electric field strength is extremely inhomogeneous, thereby causes end power frequency corona inception voltage to reduce, especially under the thunder and lightning effect, end insulator is easy to discharge, and therefore, the bus end will become the weakest link of whole piece bus.Install shielding slab (ring) at present additional in the end, balanced electric field, proper extension bus end, the also cabinet when expanding after helping connects.
Because the rise of nonferrous metal price brings very big pressure for the switchgear market competition, tubular bus has utilized the kelvin effect of metallic conductor, and equal ampacity tubular bus conductor is than rectangular bus bar conductor economical with materials 24%, and mechanical performance is also more superior.In ordering goods early stage, adopt the rectangular bus bar form such as the contract that has, adopt tubular main bus bar form again in the later stage.
The utility model content
The purpose of this utility model is to avoid the deficiencies in the prior art part and main bus bar conversion equipment that a kind of high-tension switch cabinet is provided.Be used for the conversion between rectangular bus bar and tubular bus conductor.
The purpose of this utility model can be by realizing by the following technical solutions: a kind of main bus bar conversion equipment of high-tension switch cabinet, include rectangular bus bar conductor (1), tubular bus conductor (4), be provided with connector (3) on tubular bus conductor (4), its main feature is: be provided with conversion equipment (2) between the connector (3) that is provided with on rectangular bus bar conductor (1) and the tubular bus conductor (4).
The main bus bar conversion equipment of described high-tension switch cabinet, an end of described conversion equipment (2) are pipe (2-1), are connected with connector (3), and the corner angle of its pipe (2-1) are equipped with fillet (2-7); The other end is axial symmetry bluff body (2-2), is connected with rectangular bus bar conductor (1).
The main bus bar conversion equipment of described high-tension switch cabinet, pipe (2-1) the upper edge excircle direction of described conversion equipment (2) is distributed with the hole (2-3) that is connected with connector (3).
The main bus bar conversion equipment of described high-tension switch cabinet, the axial symmetry bluff body (2-2) of described conversion equipment (2) is provided with the slotted hole (2-4) that is connected with rectangular bus bar conductor (1); Be provided with elongated slot (2-5) on described axial symmetry bluff body (2-2), its groove width is 2-4mm, is used for heat radiation and ventilation on the bus, simultaneously with conversion equipment on the corresponding also fluting of rectangular bus bar that is connected.
The main bus bar conversion equipment of described high-tension switch cabinet, the pipe (2-1) of described conversion equipment (2) is provided with the ventilation hole (2-6) with axially parallel, is used for being connected with connector (3) ventilation and the heat radiation of back at running.
Described rectangular bus bar conductor (1) is provided with 4 slotted hole (1-1) and the elongated slots (1-2) that are connected with the axial symmetry bluff body (2-2) of conversion equipment (2), and its groove width is 2-4mm.
The utility model has taken into full account the pluses and minuses of rectangular bus bar conductor and tubular bus conductor when design, the conversion equipment that designs has been carried out measuring contact resistance and heat run.
At present at the most of rectangular bus bar conductor that adopts of the middle main bus conductor of 12KV switch cubicle, adopt tubular main bus bar but also have, the conversion that solves between them is a major issue, in order to make conversion effect better, specialize the conversion regime of several forms compare, and designed conversion equipment and carried out the overlap resistance test of overlapped points, because directly affecting the height and the temperature rise of heating, the size of overlap resistance can meet the demands that (it is 115 ℃ that this lap-joint all adopts silver-plated maximum permissible temperature, temperature rise is 75K), the overlap resistance that proves pipe bus junction is significantly less than the resistance between rectangular bus bar.Doing many experimental study work aspect current capacity and the minimizing heating.It is fine to use back the utility model effect.
The beneficial effects of the utility model are: disclose the connected mode between a kind of high-tension switch cabinet rectangle and tubular main bus conductor, in order to solve present high-voltage switch gear cashier's office in a shop main bus bar system pipe bus and the transfer problem of rectangular bus bar, especially be a kind of reliably conversion efficiently when rated current is big.The utility model has solved heating under the big current conditions of connecting portion and the moving stable problem under the short-circuit conditions through experimental study.Designed on this conversion equipment and helped the key element of dispelling the heat and ventilating.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to the view schematic diagram;
Fig. 3 (a) looks schematic diagram for the conversion equipment master;
Fig. 3 (b) looks schematic diagram for the conversion equipment master;
Fig. 4 is a rectangular bus bar conductor schematic diagram.
Embodiment
Be described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing:
Embodiment 1, see Fig. 1, Fig. 2, Fig. 3, a kind of main bus bar conversion equipment of high-tension switch cabinet includes rectangular bus bar conductor 1, tubular bus conductor 4, on tubular bus conductor 4, be provided with connector 3, between the connector 3 that is provided with on rectangular bus bar conductor 1 and the tubular bus conductor 4, be provided with conversion equipment 2.One end of described conversion equipment 2 is pipe 2-1, is connected with connector 3; The other end is axial symmetry bluff body 2-2, is connected with rectangular bus bar conductor 1.The pipe 2-1 upper edge excircle direction of described conversion equipment 2 is distributed with the hole 2-3 that is connected with connector 3.The axial symmetry bluff body 2-2 of described conversion equipment 2 is provided with the slotted hole 2-4 that is connected with rectangular bus bar conductor 1; Be provided with elongated slot 2-5 on described axial symmetry bluff body 2-2, its groove width is 3mm.The pipe 2-1 of described conversion equipment 2 is provided with the ventilation hole 2-6 with axially parallel; Described rectangular bus bar conductor 1 is provided with 4 the slotted hole 1-1 and the elongated slot 1-2 that are connected with the axial symmetry bluff body 2-2 of conversion equipment 2, and its groove width is 3mm.
Switch cubicle structure by the switch cubicle structure of rectangle main bus bar, conversion cabinet, pipe main bus bar.The conversion cabinet is because the switch cubicle version difference of its both sides, the position difference of the mutual alignment of main bus bar and A, B, C three-phase, can make the rectangle main bus bar be transformed into corresponding wall bushing place by conversion, make the switch cubicle structure of two sections different structures reach networking operation under same transformer, adopt that this structure can make things convenient for, safety make main bus bar conversion.
When the utility model is installed, special bus conversion cabinet should be arranged,, adopt bolt to connect, and four bolts that 3 employings of conversion equipment 2 and connector are uniformly distributed along the circumference be connected by rectangle main bus conductor, tubular bus conductor and conversion equipment 2.When connecting, bolt requires to carry out coating conductive paste when electric current is big according to the moment values of stipulating in the GBJ149 standard.And on the conversion equipment 2 except that having designed necessary connecting hole, the elongated slot that has also designed 2-4mm helps the firm fastening and heat dissipation ventilation of conductor, in the design of the circumferencial direction of conversion equipment 2 and parallel axes 4 holes, help heat with tubular bus conductor and conversion equipment junction and shed and ventilate.In order to improve Electric Field Distribution and to help installing, having designed the 3 fillet 2-7 of place that see Fig. 3 is R2.
Claims (6)
1. the main bus bar conversion equipment of a high-tension switch cabinet, include rectangular bus bar conductor (1), tubular bus conductor (4), on tubular bus conductor (4), be provided with connector (3), it is characterized in that: between the connector (3) that is provided with on rectangular bus bar conductor (1) and the tubular bus conductor (4), be provided with conversion equipment (2).
2. the main bus bar conversion equipment of high-tension switch cabinet as claimed in claim 1, it is characterized in that: an end of described conversion equipment (2) is pipe (2-1), is connected with connector (3), the corner angle of its pipe (2-1) are equipped with fillet (2-7); The other end is axial symmetry bluff body (2-2), is connected with rectangular bus bar conductor (1).
3. the main bus bar conversion equipment of high-tension switch cabinet as claimed in claim 2, it is characterized in that: pipe (2-1) the upper edge excircle direction of described conversion equipment (2) is distributed with the hole (2-3) that is connected with connector (3).
4. the main bus bar conversion equipment of high-tension switch cabinet as claimed in claim 2, it is characterized in that: the axial symmetry bluff body (2-2) of described conversion equipment (2) is provided with the slotted hole (2-4) that is connected with rectangular bus bar conductor (1); Be provided with elongated slot (2-5) on described axial symmetry bluff body (2-2), its groove width is 2-4mm.
5. the main bus bar conversion equipment of high-tension switch cabinet as claimed in claim 1, it is characterized in that: the pipe (2-1) of described conversion equipment (2) is provided with the ventilation hole (2-6) with axially parallel.
6. the main bus bar conversion equipment of high-tension switch cabinet as claimed in claim 1, it is characterized in that: described rectangular bus bar conductor (1) is provided with 4 slotted hole (1-1) and the elongated slots (1-2) that are connected with the axial symmetry bluff body (2-2) of conversion equipment (2), and its groove width is 2-4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201798432U CN201312058Y (en) | 2008-11-22 | 2008-11-22 | Main bus switching device in high voltage switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201798432U CN201312058Y (en) | 2008-11-22 | 2008-11-22 | Main bus switching device in high voltage switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201312058Y true CN201312058Y (en) | 2009-09-16 |
Family
ID=41109312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201798432U Expired - Fee Related CN201312058Y (en) | 2008-11-22 | 2008-11-22 | Main bus switching device in high voltage switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201312058Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934859A (en) * | 2015-06-25 | 2015-09-23 | 贵州森阳科技有限公司 | Bus connecting device of medium voltage switchgear and method of connecting bus by utilizing bus connecting device |
-
2008
- 2008-11-22 CN CNU2008201798432U patent/CN201312058Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934859A (en) * | 2015-06-25 | 2015-09-23 | 贵州森阳科技有限公司 | Bus connecting device of medium voltage switchgear and method of connecting bus by utilizing bus connecting device |
| CN104934859B (en) * | 2015-06-25 | 2017-05-17 | 贵州森阳科技有限公司 | Bus connecting device of medium voltage switchgear and method of connecting bus by utilizing bus connecting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205029277U (en) | High -voltage common -box bus | |
| CN103366872A (en) | Circular shielding insulating bus and machining method thereof | |
| US20230109751A1 (en) | Sinusoidal tubular conducting busbar | |
| CN205178277U (en) | Three -phase bus in cubical switchboard | |
| CN201312058Y (en) | Main bus switching device in high voltage switchgear | |
| CN219371749U (en) | Busbar assembly and power distribution cabinet with same | |
| CN104538913A (en) | Bus duct for in-phase two-way parallel conductor | |
| CN205282406U (en) | Circuit breaker adaptation seat | |
| CN209692626U (en) | Inverter bottom of cabinet bulk T shape bus rod device and inverter cabinet | |
| CN204361295U (en) | The two inserted sheet of two-phase insulation of a kind of homophase two-way transition conductor in parallel | |
| CN207967866U (en) | A kind of air-insulated type enclosed busbar slot | |
| CN108054638B (en) | Power distribution system | |
| CN206922311U (en) | A kind of metering cabinet | |
| CN204316047U (en) | The bus duct joint device of a kind of homophase four tunnel transition conductor in parallel | |
| CN201853820U (en) | Miniature busbar connecting structure at top of metal armoured middle switch cabinet | |
| CN205790963U (en) | Rhombus common box bus | |
| CN103532063A (en) | High-voltage sharing-box bus duct system | |
| CN201570829U (en) | Bus mounting structure of high voltage switch cabinet | |
| CN204316048U (en) | A kind of bus duct of homophase two-way parallel conductor | |
| CN208157971U (en) | A kind of 220kV indoor substation layout structure | |
| CN216958878U (en) | Novel low-voltage switch cabinet bus system | |
| CN220291302U (en) | Structure of intelligent bus system connector | |
| CN207753418U (en) | A kind of resin pours generatrix groove expansion joint busbar | |
| CN219892426U (en) | Compact type in-line double-layer bus connector | |
| CN116865104B (en) | Busbar structure in main plastic case drawer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090916 Termination date: 20151122 |
|
| EXPY | Termination of patent right or utility model |