CN204205307U - A kind of plateau type armored cabinet and PT dolly supporting with it - Google Patents
A kind of plateau type armored cabinet and PT dolly supporting with it Download PDFInfo
- Publication number
- CN204205307U CN204205307U CN201420212209.XU CN201420212209U CN204205307U CN 204205307 U CN204205307 U CN 204205307U CN 201420212209 U CN201420212209 U CN 201420212209U CN 204205307 U CN204205307 U CN 204205307U
- Authority
- CN
- China
- Prior art keywords
- cabinet
- bus
- dolly
- voltage transformer
- lightning arrester
- 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
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Abstract
The utility model a kind of plateau type armored cabinet and PT dolly supporting with it, belong to 40.5kV system armored cabinet, technical problem to be solved is: provide a kind of compact conformation, miniaturized switch cubicle, the technical scheme that technical solution problem adopts is: a kind of plateau armored cabinet, comprise cabinet, three-way contact box, circuit breaker, lightning arrester and earthed switch, cabinet comprises bus-bar room and cable vault, wall bushing is provided with in bus-bar room, bus is coated with in wall bushing, bus is connected with three three-way contact boxes be arranged side by side, first output of three-way contact box is connected with voltage transformer, second output is the induction end of PT dolly, earthed switch is arranged on cabinet, be connected by lightning arrester between earthed switch with voltage transformer, lightning arrester is arranged in cable vault, compact conformation of the present utility model, has saved capital construction land used.
Description
Technical field
The utility model a kind of plateau type armored cabinet and PT dolly supporting with it, belong to 40.5kV system armored cabinet.
Background technology
Along with national grid is constantly to the lifting of voltage levels system and the developing of international market, 40.5kV system switching cabinet is used widely, and the level transformer station of counties and cities of regional power grid also adopts 40.5kV system switching cabinet in a large number.The PT cabinet of this system, usual scheme is the wide 1400mm of cabinet, and voltage transformer, lightning arrester are installed on PT car, no ground switchgear distribution.
Along with the developing of international market, particularly the increasing of international trade project of the power grid construction of Russia and Mongolia, their 40.5 kv substations, usually ABB pole circuit breaker is all adopted to join the wide Miniaturization Design of 1200mm, and PT cabinet also adopts wide design, and be furnished with bus grounding switch, this is almost that they are different from a large characteristic of national grid, and former arrangements can not meet this requirement.
Utility model content
The utility model overcomes the deficiency that prior art exists, and technical problem to be solved is: provide a kind of compact conformation, miniaturized switch cubicle.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of plateau armored cabinet, comprise cabinet, three-way contact box, circuit breaker, lightning arrester and earthed switch, described cabinet comprises bus-bar room and cable vault, wall bushing is provided with in described bus-bar room, bus is coated with in described wall bushing, described bus is connected with three three-way contact boxes be arranged side by side, first output of described three-way contact box is connected with voltage transformer, second output is the induction end of PT dolly, described earthed switch is arranged on cabinet, described earthed switch is connected by lightning arrester with between voltage transformer, described lightning arrester is arranged in cable vault.
Wherein, the overall width of described cabinet is 1100 ~ 1300mm.
Wherein, the overall width of described cabinet is 1200mm.
Wherein, described voltage transformer is the built-in integral type voltage transformer of Full-insulated fuse.
Wherein, described cabinet is provided with radiator window.
Wherein, described PT dolly is provided with three contact arms matched with contact box, 260 ~ 280mm of being separated by between described adjacent contact arm.
Wherein, to be separated by between described adjacent contact arm 280mm.
The utility model compared with prior art has following beneficial effect: the utility model is miniaturized PT switch cubicle, cabinet width is 1200mm, widelyr than conventional 1400 cabinets reduce 200mm, and be configured with earthed switch, contact box is three-way contact box, voltage transformer changes the built-in all insulation voltage transformer of direct fuse into, compared with original scheme, PT car is more succinct, do not need the contact arm of separately joining PT handcart, lightning arrester is fixedly mounted on cable vault, coordinates bus grounding switch, can prevent mistakenly entering charged chamber.Because PT loop is only by the primary current of voltage transformer, and electric current is less than 0.5A usually, so direct touch type structure can be adopted, cancel the once copper fixed contact in the high once copper Mume flower contact of the price of original PT cabinet and contact box, structure is simple, and cost is more saved.The utility model is the international trade project of the power grid construction of Russia and Mongolia, 40.5 kv substations, adopt 1200mm wide, require the user configuring bus grounding switch and adopt miniaturized switch cubicle, the miniaturization of switch cubicle reduces and has saved capital construction land used.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Fig. 1 is the structural representation of a kind of plateau of the utility model armored cabinet.
Fig. 2 is the overall structure schematic diagram 1 of a kind of plateau of the utility model armored cabinet.
Fig. 3 is the overall structure schematic diagram 2 of a kind of plateau of the utility model armored cabinet.
In figure: 1 is wall bushing, 2 is PT dolly, and 3 is voltage transformer, and 4 is lightning arrester, and 5 is earthed switch, and 6 is three-way contact box, and 7 is cabinet, and 8 is radiator window.
Embodiment
Be described in further detail the utility model by reference to the accompanying drawings now, accompanying drawing is the schematic diagram simplified, and only basic structure of the present utility model is described in a schematic way, therefore it only shows the formation relevant with the utility model.
As Figure 1-3, a kind of plateau armored cabinet, comprise cabinet 7, three-way contact box 6, circuit breaker, lightning arrester 4 and earthed switch 5, described cabinet 7 comprises bus-bar room and cable vault, wall bushing 1 is provided with in described bus-bar room, bus is coated with in described wall bushing 1, described bus is connected with three three-way contact boxes 6 be arranged side by side, first output of described three-way contact box 6 is connected with voltage transformer 3, second output is the induction end of PT dolly 2, described earthed switch 5 is arranged on cabinet 7, described earthed switch 5 is connected by lightning arrester 4 with between voltage transformer, described lightning arrester 4 is arranged in cable vault.
As preferably, the overall width of described cabinet 7 is 1200mm.
As preferably, described voltage transformer 3 is the built-in integral type voltage transformer of Full-insulated fuse.
As preferably, described cabinet 7 is provided with radiator window 8.
A kind of PT dolly, wherein PT dolly 2 is provided with three contact arms matched with contact box 6,280mm of being separated by between described adjacent contact arm.
Former scheme: the scheme that 40.5kV system pressure becomes cabinet wears the PT handcart of contact arm, because the 300mm electric clearance requirement that standard specifies must be met, phase spacing is 300mm, cabinet 7 width of coupling is minimum is 1400mm, voltage transformer 3, lightning arrester 4 are all fixedly mounted on PT handcart, the contact arm of PT handcart will by the discharging current in lightning arrester 4 action situation, so have employed the configuration with vacuum circuit-breaker contact arm Mume flower contact and a fixed contact, lightning arrester 4 accesses from the front end of the built-in fuse contact arm of PT handcart.This scheme, the high-tension switch cabinet PT scheme wide relative to 1200 cabinets, due to cabinet 7 reduced width, its phase spacing is 280mm.Because of the impact by conventional voltage transformer 3 body construction overall dimension, three voltage transformers 3 are installed side by side, and its phase spacing is 300mm, cannot mate the miniaturized switch cubicle that 1200mm cabinet is wide at all.
In the utility model, just former primary system configuration, limits by common voltage instrument transformer 3 profile, cannot be configured at the switch cubicle that 1200 cabinets are wide.Need the configuration of adjustment primary system, the installation site of transfer lightning arrester 4, adopts tee-joint sleeve, configuration earthed switch 5, and the built-in integral type voltage transformer 3 of preferred Full-insulated fuse simplifies the design of PT handcart contact arm, directly adopts contact.
Scheme Characteristics: overall space is considered, lightning arrester 4 is installed on PT dolly 2 by unit, transfer is mounted to the cable vault of switch cubicle, configuration three-way contact box 6, primary circuit is directly accessed from bus-bar room, matingly switch 5, prevent mistakenly entering charged chamber, ensure life safety when lightning arrester 4 overhauls.The built-in integral type voltage transformer of preferred Full-insulated fuse, simplifies the contact arm design of PT dolly 2, directly adopts contact.Phase spacing is reduced into 280mm.Cabinet needs are joined in satisfied miniaturization.
By reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.
Claims (7)
1. a plateau type armored cabinet and PT dolly supporting with it, it is characterized in that, comprise cabinet, three-way contact box, circuit breaker, lightning arrester and earthed switch, described cabinet comprises bus-bar room and cable vault, wall bushing is provided with in described bus-bar room, bus is coated with in described wall bushing, described bus is connected with three three-way contact boxes be arranged side by side, first output of described three-way contact box is connected with voltage transformer, second output is the induction end of PT dolly, described earthed switch is arranged on cabinet, described earthed switch is connected by lightning arrester with between voltage transformer, described lightning arrester is arranged in cable vault.
2. a kind of plateau according to claim 1 armored cabinet, is characterized in that, the overall width of described cabinet is 1100 ~ 1300mm.
3. a kind of plateau according to claim 2 armored cabinet, is characterized in that, the overall width of described cabinet is 1200mm.
4. a kind of plateau according to claim 3 armored cabinet, is characterized in that, described voltage transformer is the built-in integral type voltage transformer of Full-insulated fuse.
5. a kind of plateau according to claim 4 armored cabinet, is characterized in that, described cabinet is provided with radiator window.
6. the PT dolly supporting with a kind of plateau according to claim 1 armored cabinet, is characterized in that, described PT dolly is provided with three contact arms matched with contact box, 260 ~ 280mm of being separated by between described adjacent contact arm.
7. PT dolly according to claim 6, is characterized in that, 280mm of being separated by between described adjacent contact arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420212209.XU CN204205307U (en) | 2014-04-29 | 2014-04-29 | A kind of plateau type armored cabinet and PT dolly supporting with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420212209.XU CN204205307U (en) | 2014-04-29 | 2014-04-29 | A kind of plateau type armored cabinet and PT dolly supporting with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204205307U true CN204205307U (en) | 2015-03-11 |
Family
ID=52663227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420212209.XU Expired - Fee Related CN204205307U (en) | 2014-04-29 | 2014-04-29 | A kind of plateau type armored cabinet and PT dolly supporting with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204205307U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742971A (en) * | 2016-05-11 | 2016-07-06 | 泉州亿兴电力有限公司 | High-voltage PT cabinet |
-
2014
- 2014-04-29 CN CN201420212209.XU patent/CN204205307U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742971A (en) * | 2016-05-11 | 2016-07-06 | 泉州亿兴电力有限公司 | High-voltage PT cabinet |
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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: 20150311 Termination date: 20200429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |