CN104078850A - 40.5kV switchgear with air insulation distance equal to or larger than 300 mm - Google Patents
40.5kV switchgear with air insulation distance equal to or larger than 300 mm Download PDFInfo
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- CN104078850A CN104078850A CN201310294269.0A CN201310294269A CN104078850A CN 104078850 A CN104078850 A CN 104078850A CN 201310294269 A CN201310294269 A CN 201310294269A CN 104078850 A CN104078850 A CN 104078850A
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Abstract
The invention discloses a 40.5kV switchgear with the air insulation distance equal to or larger than 300 mm and relates to the field of power transmission and distribution. According to the 40.5kV switchgear with the air insulation distance equal to or larger than 300 mm, a main bus and a branch bus are arranged vertically through a contact box (2) of a vertically-arranged adapter, a current transformer (6) with a vertically-arranged connector, an earthing switch (8) with a vertically-arranged connector and a vertically-arranged clamp (11), an earthing switch operating interlocking device (3) and a guide rail leakage interlocking device (5) are arranged reasonably, so that space for the buses is saved, the air insulation distance of the switchgear device is made to be equal to or larger than 300 mm, and the problem that the insulation size of a 40.5 kV switch cabinet is not large enough is solved.
Description
Technical field
The present invention relates to a kind of power transmission and distribution switchgear.
Background technology
Power grid security is related to the national economic development, social stability and the overall situation of building a harmonious society.For further improving the power grid security level of production, in June, 2005, State Grid Corporation of China is by the reason of the analysis and summary major accident that network system occurs in recent years, on the basis of " preventing 25 important requirements of electrical production major accident ", reorganize worked out " 18 great anti-accident measures of electrical network of State Grid Corporation of China (trying) " (hereinafter to be referred as measure).The ratio that insulation fault occurs in security incident is the highest, the reason that civilian labor insulation fault of " high-voltage switch gear " the 3rd phase in 2005 " State Grid Corporation of China's high-voltage switch gear operating analysis in 2004 " one occurs is mainly electric discharge, CT flashover and alternate flashover etc. in cabinet.Although external this series products Technology design is comparatively advanced, its applicable electric power system great majority are earth neutral systems, and its air insulation distance and creepage distance far can not meet the requirement of China's electric power standard.Although Some Domestic producer has used for reference the structural design of external product, do not have large breakthrough, above potential safety hazard still exists.After issuing and implementation in June, 2005 " 18 great anti-accident measures of electrical network of State Grid Corporation of China " (trying), the domestic manufacturer that there is no produces the product that can meet insulation size requirement at present.
Summary of the invention
In order to solve the inadequate problem of insulation size of existing 40.5kV switchgear technology, the invention provides and ensureing that original switchgear width 1400mm and degree of depth 2800mm are constant, be under the prerequisite that switch cubicle ground is constant, switch cubicle height is increased to 2900mm from original 2600mm, and change arrangement and meet the 40.5kV switchgear of a kind of air insulation distance >=300mm, in order to change, to transform original equipment, solve the inadequate problem of the existing insulation size of 40.5kV switch cubicle.
The technical solution adopted for the present invention to solve the technical problems is: switchgear internal main bus and branch bar all vertically-arranged connect, and be connected with circuit breaker static contact by the contact box that has vertically-arranged adapter, then through having the current transformer and the earthed switch that has vertically-arranged connector of vertically-arranged connector, fix and then make somebody a mere figurehead bus outlet by wall bushing by insulation column and vertically-arranged Bus line cramp, interlock is by reasonable Arrangement, also for busbar arrangement provides larger space.
The invention has the beneficial effects as follows: bus vertically-arranged has not only been saved space, make the air insulation distance >=300mm of switch cubicle, met the requirement of " 18 great anti-accident measures of electrical network of State Grid Corporation of China ".Its manufacture method needs special equipment, and contact box, current transformer, earthed switch and insulation column Dou You our company special dies are made, and bus bending need form with the special equipment of my company and Mould Machining.
Brief description of the drawings
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing is the side end face schematic diagram of the 40.5kV switchgear of air insulation distance >=300mm of the present invention.
Embodiment
In figure: 1, switch device cabinet bodies 2, contact box 3, earthed switch actuating and interlock 4, vacuum circuit-breaker 5, guide rail interlock 6, current transformer 7, zinc oxide arrester 8, earthed switch 9, insulation column 10, vertically-arranged branch bar 11, vertically-arranged Bus line cramp 12, bus wall bushing 13, main bus bar.
As shown in drawings, the 40.5kV switchgear main bus bar (13) of air insulation distance >=300mm of the present invention is connected to the contact box (2) of vertically-arranged adapter through vertically-arranged branch bar (10), and then be connected to vacuum circuit-breaker (4), vacuum circuit-breaker (4) is again through there being the contact box (2) of vertically-arranged adapter to be connected to by vertically-arranged branch bar (10) on the current transformer (6) of vertically-arranged connector, vertically-arranged branch bar (10) is again from there being the current transformer (6) of vertically-arranged connector to be connected to the earthed switch (8) of vertically-arranged connector, and zinc oxide arrester (7) is connected to the vertically-arranged branch bar (10) between current transformer (6) and earthed switch (8), last vertically-arranged branch bar (10) from the earthed switch (8) that has a vertically-arranged connector after insulation column (9) and vertically-arranged Bus line cramp (11) are fixed, from bus wall bushing (12) reaches cabinet (1), earthed switch actuating interlock (3) and guide rail interlock (5) are arranged on the inner position that does not affect bus trend of cabinet (1), this has just formed whole switchgear.
The 40.5kV switchgear of a kind of air insulation distance >=300mm, it is characterized in that, utilization has the contact box (2) of vertically-arranged adapter, there is the current transformer (6) of vertically-arranged connector, there are earthed switch (8) and the vertically-arranged Bus line cramp (11) of vertically-arranged connector to make main bus bar and branch bar vertically-arranged, and earthed switch actuating interlock (3) and guide rail interlock (5) reasonable Arrangement, to reach the object of saving bus space, make the air insulation distance >=300mm of switchgear, thereby solve the inadequate problem of the existing insulation size of 40.5kV switch cubicle.
Claims (1)
1. the 40.5kV switchgear of an air insulation distance >=300mm, be characterised in that: main bus bar (13) is connected to the contact box (2) of vertically-arranged adapter through vertically-arranged branch bar (10), and then be connected to vacuum circuit-breaker (4), vacuum circuit-breaker (4) is again through there being the contact box (2) of vertically-arranged adapter, vertically-arranged branch bar (10) is connected on the current transformer (6) of vertically-arranged connector, vertically-arranged branch bar (10) is again from there being the current transformer (6) of vertically-arranged connector to be connected to the earthed switch (8) of vertically-arranged connector, last vertically-arranged branch bar (10) from the earthed switch (8) that has a vertically-arranged connector after insulation column (9) and vertically-arranged Bus line cramp (11) are fixed, from bus wall bushing (12) reaches cabinet (1), earthed switch actuating interlock (3) and guide rail interlock (5) are arranged on the inner position that does not affect bus trend of cabinet (1), this has just formed whole switchgear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310294269.0A CN104078850A (en) | 2013-07-15 | 2013-07-15 | 40.5kV switchgear with air insulation distance equal to or larger than 300 mm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310294269.0A CN104078850A (en) | 2013-07-15 | 2013-07-15 | 40.5kV switchgear with air insulation distance equal to or larger than 300 mm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104078850A true CN104078850A (en) | 2014-10-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310294269.0A Pending CN104078850A (en) | 2013-07-15 | 2013-07-15 | 40.5kV switchgear with air insulation distance equal to or larger than 300 mm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104078850A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938996A (en) * | 2016-06-29 | 2016-09-14 | 上海纳杰电气成套有限公司 | Miniature high-voltage air-insulated switch cabinet busbar chamber structure |
| CN110246658A (en) * | 2019-05-22 | 2019-09-17 | 福州市宸意美贸易有限公司 | A kind of rotary low-pressure transformer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080062619A1 (en) * | 2006-09-08 | 2008-03-13 | Eaton Corporation | Front access electrical enclosure and electrical bus assembly therefor |
| CN201601395U (en) * | 2010-01-20 | 2010-10-06 | 上海华通企业集团有限公司 | 20kv high voltage switch cabinet |
| CN202084825U (en) * | 2011-05-16 | 2011-12-21 | 贵州长征电器成套有限公司 | Indoor high-voltage switch cabinet |
| CN202940502U (en) * | 2012-11-07 | 2013-05-15 | 中国西电集团公司 | Plateau-type high-voltage switchgear |
-
2013
- 2013-07-15 CN CN201310294269.0A patent/CN104078850A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080062619A1 (en) * | 2006-09-08 | 2008-03-13 | Eaton Corporation | Front access electrical enclosure and electrical bus assembly therefor |
| CN201601395U (en) * | 2010-01-20 | 2010-10-06 | 上海华通企业集团有限公司 | 20kv high voltage switch cabinet |
| CN202084825U (en) * | 2011-05-16 | 2011-12-21 | 贵州长征电器成套有限公司 | Indoor high-voltage switch cabinet |
| CN202940502U (en) * | 2012-11-07 | 2013-05-15 | 中国西电集团公司 | Plateau-type high-voltage switchgear |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938996A (en) * | 2016-06-29 | 2016-09-14 | 上海纳杰电气成套有限公司 | Miniature high-voltage air-insulated switch cabinet busbar chamber structure |
| CN110246658A (en) * | 2019-05-22 | 2019-09-17 | 福州市宸意美贸易有限公司 | A kind of rotary low-pressure transformer |
| CN110246658B (en) * | 2019-05-22 | 2021-05-04 | 赣州讯康电子科技有限公司 | Rotary low-voltage transformer |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141001 |