CN202550300U - Mounting and fixing structure of lightning arrestor of KYN high-current interconnection switch cabinet - Google Patents
Mounting and fixing structure of lightning arrestor of KYN high-current interconnection switch cabinet Download PDFInfo
- Publication number
- CN202550300U CN202550300U CN2012200401639U CN201220040163U CN202550300U CN 202550300 U CN202550300 U CN 202550300U CN 2012200401639 U CN2012200401639 U CN 2012200401639U CN 201220040163 U CN201220040163 U CN 201220040163U CN 202550300 U CN202550300 U CN 202550300U
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- crossbeam
- cabinet
- fixing structure
- kyn
- lightning arrester
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Abstract
The utility model discloses a mounting and fixing structure of a lightning arrestor of a KYN high-current interconnection switch cabinet, and relates to a mounting and fixing structure of a lightning arrestor in a switch cabinet. The mounting and fixing structure comprises a KYN high-current interconnection switch cabinet body, supports are respectively arranged on the left side and the right side of a fixing plate of a current transformer (6) and are mounted on fixing plate mounting holes of the current transformer (6), two ends of a crossbeam (18) are respectively connected with the supports, the lightning arrestor (17) is fixed onto the crossbeam (18), and a grounding lead of the arrestor (17) penetrates through space between the support on one end of the crossbeam (18) and a side plate of a cabinet body after penetrating through the crossbeam (18), then downwards extends to a fixing beam at the bottom of the cabinet body, and runs along the beam until the grounding lead reaches a main bar of a grounding bar of the cabinet body. The lightning arrestor is arranged between the current transformer and a main busbar chamber with an interconnection busbar, and the mounting and fixing structure not only is attractive and safe, but also brings convenience for experiments and replacement of the lightning arrestor.
Description
[technical field]
The utility model relates to the mount fixing structure of lightning arrester in a kind of switch cubicle, especially relates to the big electric current interconnection switch of a kind of KYN cabinet lightning arrester mount fixing structure.
[background technology]
In the production of the big electric current interconnection switch of power equipment KYN cabinet, often run into such situation; (the KYN cabinet with 10KV is an example) is exactly to need one group of lightning arrester of installing in the big current segmenting switch cubicle usually; Be used for overvoltage protection, but big electric current interconnection switch cabinet all is two female or three mothers usually, the space is limited in the cabinet; Also to carry out bus at the contact cabinet on cabinet Down Highway chamber and next door and be connected, be not easy to install lightning arrester.
[summary of the invention]
In order to overcome the deficiency in the background technology; The utility model discloses the big electric current interconnection switch of a kind of KYN cabinet lightning arrester mount fixing structure; Between the main bus bar chamber that lightning arrester is arranged on current transformer and interbus place; Not only attractive in appearance, safety, and made things convenient for the experiment and the replacing of lightning arrester.
For realizing the foregoing invention purpose, the utility model adopts following technical scheme:
The big electric current interconnection switch of a kind of KYN cabinet lightning arrester mount fixing structure comprises the big electric current interconnection switch of KYN cabinet body, is respectively arranged with support in the left and right sides of current transformer 6 fixed heads, and said support is installed on the fixed head installing hole of current transformer 6; The two ends of crossbeam 18 are connected with support respectively; Lightning arrester 17 is fixed on the crossbeam 18; The ground lead of lightning arrester 17 passes behind the crossbeam 18 and between the support of crossbeam 18 1 ends and the side cabinet and passes, and said then ground lead is down to the bottom of cabinet bulk built-in beam, along on the main row of beam to cabinet ground connection row.
The big electric current interconnection switch of described KYN cabinet lightning arrester mount fixing structure, said crossbeam 18 is grooved crossbeam 18 or square tube crossbeam 18.
The big electric current interconnection switch of described KYN cabinet lightning arrester mount fixing structure, said ground lead is a copper pigtail minor ground lead 19.
Owing to adopt aforesaid technical scheme, the utlity model has following beneficial effect:
The big electric current interconnection switch of the described KYN of the utility model cabinet lightning arrester mount fixing structure is to find that bus is many in the block switch cabinet when making, and level, vertical direction all have bus; Lightning arrester does not have good fixed position, during installation or distance to the ground is not enough, or alternate bad assurance; Be exactly not on same horizontal line; Be not easy to draw earth connection, can not meet installation requirement, making discovery from observation has very that large space can utilize between the main bus bar chamber at current transformer and interbus place; Therefore the utility model is used current transformer fixed head installing hole dexterously; At current transformer fixed head support of processing and fabricating each side, the development length of support and current transformer keep 200MM, distance; Support is fixed on the fixed head of current transformer, support and side cabinet keep the 10MM gap, are convenient to receive lead-in wire and pass; A grooved crossbeam or square tube crossbeam are installed then, the crossbeam two ends are fixed on the support, then lightning arrester is fixed on the crossbeam; The arrester ground lead-in wire adopts copper pigtail minor ground lead; Between support and side cabinet, pass, down to the bottom of cabinet bulk built-in beam, along on the main row of beam to cabinet ground connection row.Lightning arrester lead-in wire is connected between fixed contact box and current transformer, and so promptly safety is with attractive in appearance, is convenient to again that lightning arrester is tested and replacing.
[description of drawings]
Fig. 1 is the structural representation of the big electric current interconnection switch of KYN cabinet
Fig. 2 is the mounting structure sketch map of the utility model;
Among the figure: 1, pressure relief device; 2, main bus bar chamber; 3, earthed switch; 4, dividing plate; 5, cable vault; 6, current transformer; 7, cable clip; 8, handcart; 9, handcart chamber; 10, wheel; 11, feed screw nut propulsive mechanism; 12, secondary plug; 13, circuit breaker; 14, contact box; 15, relay instrument; 16, valve; 17, lightning arrester; 18, crossbeam; 19, copper pigtail minor ground lead.
[embodiment]
Can explain the utility model in more detail through following embodiment, the purpose of open the utility model is intended to protect all variations and the improvement in the utility model scope, and the utility model is not limited to following embodiment;
In conjunction with accompanying drawing 1 or the big electric current interconnection switch of 2 described KYN cabinet lightning arrester mount fixing structure; The big electric current interconnection switch of KYN cabinet is the complete power distribution equipment of 40.5kV three-phase alternating current 50Hz; Be mainly used in power plant, the power transformation switchgear house of industrial and mining enterprises in one's power; Make to accept and distribute the usefulness of electric energy, can realize circuit control, protection and monitoring function; Except that being widely used in general electric power system, also can be used in the place of frequent operation.In conjunction with accompanying drawing 1, the switch cubicle structure can be divided into cabinet, handcart 8 two large divisions by its composition.Adapted vacuum circuit-breaker 13 or import sulfur hexafluoride breaker 13 in the cabinet.Cabinet adopts package assembly, has improved the quality of fit of handcart 8 with cabinet, and cabinet is that sheet metal bends, and uses the bolt assembled formation.
The function of the big electric current interconnection switch of KYN cabinet mainly is relay instrument Room 15, handcart chamber 9, cable vault 5 and bus-bar room four parts; Each several part is separated with the metal partion (metp) 4 of ground connection; Therefore can stop electric arc to extend, thereby issuable fault is limited in the very little scope.Except that the control room that relay instrument 15 is set, other compartment all has the independent pressure release passage of pressure relief device 1.When certain part need be changed element or maintenance, do not need full cabinet to have a power failure, only need to cut off the power supply at element two ends, the maintenance personal can get into this chamber safely and keep in repair; The degree of protection of shell is IP3X; Open 9 of handcart chambers, and degree of protection was IP2X when circuit breaker 13 handcarts 8 were in disconnection/test position.The big electric current interconnection switch of KYN cabinet also can realize closing door operation: each item normal running of switch cubicle; Comprise circuit breaker 13 divide-shut brakes, the wheel 10 that circuit breaker 13 handcarts 8 are provided with through the bottom shifts the service position onto and can both cut out under the condition in the high pressure compartment door with the divide-shut brake that is withdrawn into disconnection/test position and earthed switch 3 and carry out.And switch cubicle has cable turnover line, built on stilts turnover line, bus contact, isolation, voltage transformer, lightning arrester etc. and adopts compound inslation.Major loop adopts isolated bus; Alternate and connector is furnished with the injection molded insulating case of fire proofing; Main bus bar in the main bus bar chamber 2 is the disjunction bus, separates with bus casing between adjacent cabinet, when accident occurring; Can prevent effectively that accident from spreading, and plays the supplemental support effect to main bus bar simultaneously.5 li are equipped with parts such as current transformer 6, earthed switch 3 in the cable vault; The connection of many cables is convenient in well-to-do space; The many cables that cable trough is introduced the control power supply are fixed on the switch cubicle bottom through cable clip 7, and metal dampers 16 is housed before the contact box 14, and valve 16 moves to the process of service position from disconnection/test position at handcart 8 and opens automatically up and down; When handcart 8 moves in the other direction, close automatically, just can form effective isolation.Interlocking between main switch, handcart 8, earthed switch 3 and the cabinet door all adopts mandatory mechanical latching mode, satisfies " five is anti-" function.Circuit breaker 13 handcarts 8 have only when in disconnection/test position or service position, and circuit breaker 13 just can carry out closing operation, and after circuit breaker 13 closed a floodgate, the feed screw nut propulsive mechanism 11 of handcart 8 can't be operated, to prevent on-load push-and-pull circuit breaker 13 handcarts 8.Have only when earthed switch 3 is in gate-dividing state; Circuit breaker 13 handcarts 8 could move to the service position from disconnection/test position; Only when circuit breaker 13 handcarts 8 were in disconnection/test position, earthed switch 3 just can carry out closing operation, had realized preventing charged mistake splice grafting ground switch 3 like this; When earthed switch 3 was in gate-dividing state, 5 of cable vaults can't open, and prevent mistakenly entering charged chamber; Circuit breaker 13 handcarts 8 are in test or service position and when not controlling voltage, only enable manual separating brake and can not closing a floodgate; Circuit breaker 13 handcarts 8 are when the service position, and secondary plug 12 is lockable and can not pulls out; In handcart 8 vehicle frames feed screw nut's propulsive mechanism 11 and freewheel clutch are housed.Feed screw nut's propulsive mechanism 11 is operated like a cork handcart 8 is moved between disconnection/test and service position, can make handcart 8 be positively locked in the service position by feed screw nut's self-locking performance, prevents to cause that because of electrodynamic effect handcart 8 plaies are accidents caused.Freewheel clutch moves at handcart 8 and works when retreating to the service position, operating axis and screw axis are broken away from automatically and dallies, and can prevent misoperation and damages propulsive mechanism 11.
In conjunction with the big electric current interconnection switch of the described KYN of accompanying drawing 2 the utility model cabinet lightning arrester mount fixing structure; Between the main bus bar chamber 2 that utilizes current transformer 6 and interbus to belong to very large space is arranged; Therefore the utility model is used the fixed head installing hole of current transformer 6 dexterously; At current transformer 6 fixed heads support of processing and fabricating each side, the development length of support and current transformer 6 keep 200MM, distance; Support is fixed on the fixed head of current transformer 6, support and side cabinet keep the 10MM gap, and the ground lead of being convenient to earthed switch 3 passes; A grooved crossbeam 18 or square tube crossbeam 18 are installed then, crossbeam 18 two ends are fixed on the support, then lightning arrester 17 is fixed on the crossbeam; Lightning arrester 17 ground leads adopt copper pigtail minor ground lead 19; Between support and side cabinet, pass, down to the bottom of cabinet bulk built-in beam, along on the main row of beam to cabinet ground connection row.The lead-in wire of lightning arrester 17 is connected between fixed contact box 14 and current transformer 6, and so promptly safety and attractive in appearance is convenient to lightning arrester 17 experiments and replacing again.
The utility model does not detail part and is prior art.
Claims (3)
1. the big electric current interconnection switch of KYN cabinet lightning arrester mount fixing structure; Comprise the big electric current interconnection switch of KYN cabinet body; It is characterized in that: the left and right sides at current transformer (6) fixed head is respectively arranged with support, and said support is installed on the fixed head installing hole of current transformer (6); The two ends of crossbeam (18) are connected with support respectively; Lightning arrester (17) is fixed on the crossbeam (18); The ground lead of lightning arrester (17) passes behind the crossbeam (18) and between the support of crossbeam (18) one ends and the side cabinet and passes; Said then ground lead is down to the bottom of cabinet bulk built-in beam, along on the main row of beam to cabinet ground connection row.
2. the big electric current interconnection switch of KYN according to claim 1 cabinet lightning arrester mount fixing structure, it is characterized in that: said crossbeam (18) is grooved crossbeam (18) or square tube crossbeam (18).
3. the big electric current interconnection switch of KYN according to claim 1 cabinet lightning arrester mount fixing structure, it is characterized in that: said ground lead is a copper pigtail minor ground lead (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200401639U CN202550300U (en) | 2012-02-06 | 2012-02-06 | Mounting and fixing structure of lightning arrestor of KYN high-current interconnection switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200401639U CN202550300U (en) | 2012-02-06 | 2012-02-06 | Mounting and fixing structure of lightning arrestor of KYN high-current interconnection switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202550300U true CN202550300U (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200401639U Expired - Fee Related CN202550300U (en) | 2012-02-06 | 2012-02-06 | Mounting and fixing structure of lightning arrestor of KYN high-current interconnection switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202550300U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119180A (en) * | 2015-07-28 | 2015-12-02 | Abb技术有限公司 | Adjustable lightning arrester bracket and gas insulated switchgear |
-
2012
- 2012-02-06 CN CN2012200401639U patent/CN202550300U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119180A (en) * | 2015-07-28 | 2015-12-02 | Abb技术有限公司 | Adjustable lightning arrester bracket and gas insulated switchgear |
| CN105119180B (en) * | 2015-07-28 | 2017-04-26 | Abb技术有限公司 | Adjustable lightning arrester bracket and gas insulated switchgear |
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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: 20121121 Termination date: 20130206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |