CN205452837U - Cubical switchboard that cable chamber insulating barrier arranged on limit mutually - Google Patents
Cubical switchboard that cable chamber insulating barrier arranged on limit mutually Download PDFInfo
- Publication number
- CN205452837U CN205452837U CN201620122593.3U CN201620122593U CN205452837U CN 205452837 U CN205452837 U CN 205452837U CN 201620122593 U CN201620122593 U CN 201620122593U CN 205452837 U CN205452837 U CN 205452837U
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- CN
- China
- Prior art keywords
- insulating barrier
- busbar
- cubical switchboard
- current transformer
- cabinet body
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- 230000004888 barrier function Effects 0.000 title claims abstract description 33
- 238000005452 bending Methods 0.000 claims abstract description 4
- 239000004020 conductor Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 abstract description 6
- 230000009466 transformation Effects 0.000 abstract description 2
- 230000016507 interphase Effects 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Abstract
The utility model provides a cubical switchboard that cable chamber insulating barrier arranged on limit mutually, this cubical switchboard of is through bending mother row (4), and the air clear distance reaches 300 mm to make mother arrange within a definite time, it arranges mutually to arrange interphase insulation baffle (3) limit with mother for female arranging reaches 240 mm with the cubical switchboard cabinet body (1) interval, and has cancelled the interphase insulation baffle, with moving, make the air clear distance between the current transformer full skirt reach 60 mm outside A, the double -phase current transformer of C (6). This novel cubical switchboard can satisfy the technical requirement of current standard, can avoid again that traditional cubical switchboard is female to be arranged the insulating barrier that wets, the current transformer full skirt to insulating barrier, cable head to insulating barrier electric discharge phenomena, can be used for new 35kV cubical switchboard the design and in the transformation of fortune cubical switchboard.
Description
Technical field
This utility model relates to the switch cubicle that insulating barrier limit, a kind of cable vault is arranged mutually, belongs to electrician and equips field.
Background technology
At present, switch cubicle has been used widely in 35kV distribution system.But being limited by switch cabinet body width to limit, in 35kV switch cubicle cable vault, many employing insulating barriers carry out reinforced insulation.Proposing relevant technology for the use of insulating barrier in 35kV switch cubicle in country, industry and enterprise's relevant criterion to require: regulation in DL/T404-2007 " 3.6kV～40.5kV ac metal closing switch gear and control equipment ": simple using air as the switch cubicle of dielectric, alternate and minimum air distance relatively is not less than 300；The compound inslation formed using air and insulation board is as the switch cubicle of dielectric, and the minimum air void between electrical body and insulation board should be not less than 60.Regulation in State Grid Corporation of China " suggestion unified by grid equipment technical standard difference clause ": use compound inslation, between conductor, conductor insulation against ground clear distance is not less than 240.
35kV switch cubicle cable vault layout feature is at present: alternate employing insulating barrier, and phase spacing reaches 240, and busbar and insulating barrier spacing are close to 120；Busbar and switch cabinet body spacing meet 300；Current transformer full skirt contacts substantially with insulating barrier.
Above structure designs, though meeting the technology requirement of relevant criterion, but still there occurs the phenomenon that insulating barrier is discharged by the busbar insulating barrier electric discharge to making moist, current transformer full skirt by insulating barrier electric discharge, end in running.
Therefore, how to optimize the structure of components and parts in switch cubicle and arrange, make switch cubicle can meet the requirement of relevant criterion, be avoided that in operation again simultaneously and discharge, become a problem demanding prompt solution.
Summary of the invention
The purpose of this utility model is to provide the switch cubicle that insulating barrier limit, a kind of cable vault is arranged mutually, and the design for new switch cubicle and the transformation at fortune switch cubicle, to improve switch cubicle reliability of operation.
The technical solution of the utility model is, the switch cubicle that a kind of cable vault arranges on insulating barrier limit mutually, including switch cabinet body, busbar, contact box summation current transformer, also includes insulating barrier；Described insulating barrier is placed in A phase busbar and switch cabinet body, between C phase busbar and switch cabinet body；Between the biphase busbar of A, C and switch cabinet body, air distance reaches 240；A, C two moves outside line current transformer, makes between threephase current transformer full skirt air clearance from reaching 60.
Described A, C biphase busbar bending, and will move outside biphase to A, C busbar so that between busbar, air distance reaches 300；Between inner wire and conductor over the ground between air clearance from not less than 300, conductor to insulating barrier spacing not less than 240.
Described busbar specification is 60 × 10.
The beneficial effects of the utility model are, newly-designed switch cubicle, can meet the requirement that switch cabinet structure is designed by existing standard, during switch cubicle can be avoided again to run, busbar is to insulating part, insulating part to the electric discharge between insulating part, substantially increases equipment reliability of operation.
This utility model is applicable to the design of new switch cabinet body and transforms the cabinet of run switch cabinet.
Accompanying drawing explanation
Fig. 1 is the switch cubicle that insulating barrier limit, cable vault is arranged mutually；
Fig. 2 is traditional switch cabinet；
Figure number in figure: 1 is switch cabinet body；2 is reinforcement；3 is insulating barrier；4 is busbar；5 is contact box；6 is current transformer.
Detailed description of the invention
Detailed description of the invention of the present utility model is as shown in Figure 1.
The switch cubicle that a kind of cable vault of the present embodiment arranges on insulating barrier limit mutually, including switch cabinet body 1, busbar 4, contact box 5 summation current transformer 6, also includes insulating barrier 3；Described insulating barrier 3 is placed in A phase busbar and switch cabinet body, between C phase busbar and switch cabinet body.
The present embodiment detailed description of the invention is as follows:
(1) busbar in cabinet 4 is replaced with 60 × 10 by 80 × 8；
(2) fitting insulating panels 3 on switch cubicle cable vault both sides reinforcement；
(3) by biphase to A, C busbar in cable vault's contact box exit bending so that the distance between busbar distance insulating barrier is 270；
(4) A phase busbar and the insulating barrier between B phase busbar, B phase busbar and C phase busbar are cancelled so that busbar phase spacing meets 300；
(5) A, C biphase current transformer moves outside both sides, cable vault, makes the spacing between each phase current mutual inductor full skirt reach 60.
Claims (3)
1. the switch cubicle that insulating barrier limit in cable vault's is arranged mutually, including switch cabinet body, busbar, contact box summation current transformer, it is characterised in that described switch cubicle also includes insulating barrier；Described insulating barrier is placed in A phase busbar and switch cabinet body, between C phase busbar and switch cabinet body；Between the biphase busbar of A, C and switch cabinet body, air distance reaches 240；A, C two moves outside line current transformer, makes between threephase current transformer full skirt air clearance from reaching 60.
The switch cubicle that a kind of cable vault arranges on insulating barrier limit mutually, it is characterised in that described A, C biphase busbar bending, and will move outside biphase to A, C busbar so that between busbar, air distance reaches 300；Between inner wire and conductor over the ground between air clearance from not less than 300, conductor to insulating barrier spacing not less than 240.
The switch cubicle that a kind of cable vault arranges on insulating barrier limit mutually: it is characterized in that, described busbar specification is 60 × 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620122593.3U CN205452837U (en) | 2016-02-17 | 2016-02-17 | Cubical switchboard that cable chamber insulating barrier arranged on limit mutually |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620122593.3U CN205452837U (en) | 2016-02-17 | 2016-02-17 | Cubical switchboard that cable chamber insulating barrier arranged on limit mutually |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205452837U true CN205452837U (en) | 2016-08-10 |
Family
ID=56581481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620122593.3U Active CN205452837U (en) | 2016-02-17 | 2016-02-17 | Cubical switchboard that cable chamber insulating barrier arranged on limit mutually |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205452837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610063A (en) * | 2016-02-17 | 2016-05-25 | 国网江西省电力科学研究院 | Switch cabinet employing insulated partition plates in side phase layout in cable chamber |
-
2016
- 2016-02-17 CN CN201620122593.3U patent/CN205452837U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610063A (en) * | 2016-02-17 | 2016-05-25 | 国网江西省电力科学研究院 | Switch cabinet employing insulated partition plates in side phase layout in cable chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |