CN203260933U - 12kV central withdrawable switchgear for areas 4500 m above sea level - Google Patents
12kV central withdrawable switchgear for areas 4500 m above sea level Download PDFInfo
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- CN203260933U CN203260933U CN 201320169618 CN201320169618U CN203260933U CN 203260933 U CN203260933 U CN 203260933U CN 201320169618 CN201320169618 CN 201320169618 CN 201320169618 U CN201320169618 U CN 201320169618U CN 203260933 U CN203260933 U CN 203260933U
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- above sea
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Abstract
The utility model discloses a 12kV central withdrawable switchgear for areas 4500 m above sea level. A cabinet comprises four isolated chambers: a cable chamber, a busbar chamber, a breaker chamber, and an instrument chamber. Connection cables between the cable chamber, the busbar chamber, the breaker chamber and the instrument chamber pass through wall bushings arranged in walls of the chambers. A plate heater is provided inside the cabinet. A vacuum circuit breaker handcart and a left and a right guide rails fitting at the bottom of the handcart are provided inside the breaker chamber. The switchgear satisfies the needs for insulation and pressure-resistance in areas 4500 m above sea level, and is resistant to extreme cold, reasonable in structure, and reliable in performance.
Description
Technical field
The utility model relates to power transmission and distribution, relates in particular to a kind of 12kV high voltage switchgear.
Background technology
Be used for the 12kV switchgear that height above sea level surpasses 1000 meter districts, special specification requirement is arranged, its insulation level is lower than 1000 meters area than height above sea level, need to stand higher withstand voltage parameter test, and in addition, equipment also need satisfy the condition of work of extreme cold.
By the national standard requirement, height above sea level whenever increases 100 meters, and the dielectric voltage withstand value of 12kV switchgear will improve 1%.For example the 12kV switchgear will satisfy the requirement of 3500 meters of height above sea level, and its dielectric voltage withstand level is 1.33 times of mill run.Exactly because high height above sea level operating mode is to the special technical requirement of high voltage switchgear, the 12kV switchgear on the market generally can not surpass 3500 meters height above sea levels, and what minority can surpass also is fixed switch arrangement, lacks high performance middle disposed withdrawn type switchgear.Along with the Western Energy Resources development ﹠ construction increase, there is larger demand in these areas to the 12kV middle disposed withdrawn type switchgear of high height above sea level.
The utility model content
The utility model aims to provide a kind of 12kV middle disposed withdrawn type switchgear that satisfies 4500 meters dielectric voltage withstand requirements of height above sea level, tolerance extreme cold condition of work.
For achieving the above object, the utility model is realized by the following technical solutions:
The 12kV middle disposed withdrawn type switchgear that the disclosed height above sea level of the utility model is 4500 meters, cabinet comprise cable vault, bus-bar room, breaker chamber, four chambers that mutually isolate, control room; Stube cable between described cable vault, bus-bar room, breaker chamber, the control room passes the wall bushing that is arranged on above-mentioned each locular wall, is provided with baffle heater in the described cabinet; Be provided with in the described breaker chamber vacuum circuit-breaker handcart and with the suitable left and right rail in vacuum circuit-breaker handcart bottom.
Further, also comprise the secondary plug interlocking device that cooperates with vacuum circuit-breaker handcart formation interlocking that is arranged in breaker chamber.
Further, also comprise rear door interlocking mechanism, described rear door interlocking mechanism connects the earthed switch that is arranged in the cable vault and the back door of cabinet.
Further, described cabinet top arranges the pressure release top cover, and described pressure release top cover is provided with the bending breach.
Preferably, the row of the main bus bar in the described bus-bar room is triangularly arranged.
Further, on the dividing plate between described breaker chamber and bus-bar room, the cable vault contact box is installed, described contact box inner chamber and the outside ring-type strip structure that is provided with projection.
Further, the dodge gate on the anterior locular wall of described contact box is SMC sheet material.
Preferably, described wall bushing is large skirt border structure.
Further, the front panel of described cabinet is provided with latticed observation window, is fixed with on the described observation window for the implosion guard of observing.
Preferably, described implosion guard is the thick toughened glass of 10mm.
The utility model can satisfy 4500 meters dielectric voltage withstand requirements of height above sea level, tolerance extreme cold; Rational in infrastructure, dependable performance.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is front panel schematic diagram of the present utility model;
Among the figure: the 1-cabinet, the 2-front panel, the 3-observation window, the 5-cable vault, the 6-baffle heater, the 7-back door, the 8-rear door interlocking mechanism, the 9-earthed switch, the 10-current transformer, the 11-lightning arrester, the 12-contact box, the 13-fixed contact, 14-main bus bar row, the 15-insulator, the 16-bus-bar room, 17-pressure release top cover, the 18-breaker chamber, the 19-control room, 20-secondary plug interlocking device, the 21-dodge gate, the 22-vacuum circuit-breaker handcart, 23-dodge gate open-and-close mechanism, the 24-left and right rail, 25-secondary line backplate.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is further elaborated.
As shown in Figure 1, the cabinet 1 of the utility model high voltage switchgear comprises cable vault 5, bus-bar room 16, breaker chamber 18,19 4 individual compartment in control room; The primary elements such as current transformer 10, lightning arrester 11, earthed switch 9 are fixedly installed in cable vault 5, and main bus bar 14 is fixedly installed in bus-bar room 16, and vacuum circuit-breaker handcart 22 is positioned over breaker chamber 18, and the linear quadratic control element is installed on control room 19.
All adopt the 2mm steel plate to separate between above-mentioned four individual compartment, guarantee that the short circuiting arc fault of a certain individual compartment does not involve adjacent compartments, reduce fault harm; In addition, also avoid the staff when a certain individual compartment is carried out Operation and Maintenance work, the electrified body of false touch and other individual compartment is guaranteed staff's safety.
Dividing plate between breaker chamber 18 and bus-bar room 16, the cable vault 5 is equipped with contact box 12, and fixed contact 13 is installed in the contact box 12, and contact box 12 is blocked by dodge gate 21, and electric-conductor is isolated.Front portion, the switchgear left and right sides is provided with secondary line backplate 25, and protection linear quadratic control line is not burnt by fault electric arc.
Vacuum circuit-breaker handcart 22 is mobile in breaker chamber 18 by left and right rail 24, and when the vacuum circuit breaker cart, 22 when moving to the service position forward, and collision activity door open-and-close mechanism 23 is opened dodge gate 21; 12 fixed contact 13 is pegged graft and is cooperated in vacuum circuit-breaker handcart 22 moving contacts and the contact box.
Vacuum circuit-breaker handcart 22 also forms interlocking with secondary plug interlocking device 20 and cooperates, when it moves to the service position, and the secondary plug on the secondary plug interlocking device 20 locking vacuum circuit-breaker handcarts 22, secondary plug comes off when avoiding work.
7 places, back door are provided with rear door interlocking mechanism 8, and when earthed switch 9 is in gate-dividing state, rear door interlocking mechanism 8 catches on back door 7, and back door 7 can not be opened; When earthed switch 9 is in "on" position, the interlocking that rear door interlocking mechanism 8 is removed back door 7, back door 7 can be opened.When back door 7 is not closed, rear door interlocking mechanism 8 locking earthed switches 9 make it can not separating brake.Thereby avoid operating personnel that equipment is carried out misoperation, eliminate the hidden danger that misoperation causes catastrophe failure.
As shown in Figure 2, on the front panel 2 of cabinet 1 observation window 3 is set, observation window is fixed with the thick implosion guard of 10mm, and implosion guard is processed through tempering, and front panel 2 is opened latticed hole in the observation window position.When the gases at high pressure of fault electric arc generation impacted implosion guard, the load carrying effect can be played in this latticed hole, strengthened the implosion guard resistance.
For satisfying the dielectric voltage withstand requirement of high height above sea level, cabinet body structure has been done particular design.Main bus bar row 14 is fixing by insulator 15 supports of large creepage distance, insulator 15 high 220mm.Main bus bar row 14 triangularity in bus-bar room 16 is arranged, uniform electric field can be realized phase and phase, relatively insulation distance is greater than 170mm.Cabinet 1 left side arranges three wall bushings, and main bus bar row 14 forms holonomic system by wall bushing and proximity switches equipment.Wall bushing is large skirt border structure, guarantees the insulation distance of main bus bar row 14 and cabinet 1.
Baffle heater 6 is set in the cabinet 1, when environment of high-altitude area temperature extreme variation, can starts heater 6 work by automatic heating control system; Avoid reducing the generation of the condensation phenomenon of product insulation level.
Certainly; the utility model also can have other various embodiments; in the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (10)
1. the 12kV middle disposed withdrawn type switchgear of 4500 meters of height above sea level is characterized in that: cabinet (1) comprises the mutually chambers of isolation of (19) four of cable vaults (5), bus-bar room (16), breaker chamber (18), control room; Stube cable between described cable vault (5), bus-bar room (16), breaker chamber (18), control room (19) passes the wall bushing that is arranged on above-mentioned each locular wall, is provided with baffle heater (6) in the described cabinet (1); Be provided with in the described breaker chamber (18) vacuum circuit-breaker handcart (22) and with the suitable left and right rail (24) in vacuum circuit-breaker handcart (22) bottom.
2. the 12kV middle disposed withdrawn type switchgear of 4500 meters of height above sea level according to claim 1 is characterized in that: also comprise be arranged in breaker chamber (18) form the secondary plug interlocking device (20) that interlocking cooperates with vacuum circuit-breaker handcart (22).
3. the 12kV middle disposed withdrawn type switchgear of 4500 meters of height above sea level according to claim 1, it is characterized in that: also comprise rear door interlocking mechanism (8), described rear door interlocking mechanism (8) connection is arranged on the interior earthed switch (9) in cable vault (5) and the back door (7) of cabinet (1).
4. 12kV middle disposed withdrawn type switchgear according to claim 1, it is characterized in that: described cabinet (1) top is provided with pressure release top cover (17), and described pressure release top cover (17) is provided with the bending breach.
5. the 12kV middle disposed withdrawn type switchgear of 4500 meters of height above sea level according to claim 1, it is characterized in that: the main bus bar row (14) in the described bus-bar room (16) is triangularly arranged.
6. the 12kV middle disposed withdrawn type switchgear of 4500 meters of height above sea level according to claim 1, it is characterized in that: on the dividing plate between described breaker chamber (18) and bus-bar room (16), cable vault (5) contact box (12) is installed, described contact box (12) inner chamber and the outside ring-type strip structure that is provided with projection.
7. the 12kV middle disposed withdrawn type switchgear of 4500 meters of height above sea level according to claim 6, it is characterized in that: the dodge gate (21) on the anterior locular wall of described contact box (12) is SMC sheet material.
8. the 12kV middle disposed withdrawn type switchgear of 4500 meters of height above sea level according to claim 1, it is characterized in that: described wall bushing is large skirt border structure.
9. the 12kV middle disposed withdrawn type switchgear of 4500 meters of height above sea level according to claim 1, it is characterized in that: be provided with latticed observation window (3) on the front panel (2) of described cabinet (1), be fixed with on the described observation window (3) for the implosion guard of observing.
10. the 12kV middle disposed withdrawn type switchgear of 4500 meters of height above sea level according to claim 9, it is characterized in that: described implosion guard is the thick toughened glass of 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320169618 CN203260933U (en) | 2013-04-08 | 2013-04-08 | 12kV central withdrawable switchgear for areas 4500 m above sea level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320169618 CN203260933U (en) | 2013-04-08 | 2013-04-08 | 12kV central withdrawable switchgear for areas 4500 m above sea level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203260933U true CN203260933U (en) | 2013-10-30 |
Family
ID=49473471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320169618 Expired - Fee Related CN203260933U (en) | 2013-04-08 | 2013-04-08 | 12kV central withdrawable switchgear for areas 4500 m above sea level |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203260933U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242108A (en) * | 2014-06-26 | 2014-12-24 | 国家电网公司 | Electrical equipment cabinet |
| CN107134722A (en) * | 2017-06-21 | 2017-09-05 | 四川达卡电气有限公司 | 12kV generator outlet killer switch equipment |
-
2013
- 2013-04-08 CN CN 201320169618 patent/CN203260933U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242108A (en) * | 2014-06-26 | 2014-12-24 | 国家电网公司 | Electrical equipment cabinet |
| CN107134722A (en) * | 2017-06-21 | 2017-09-05 | 四川达卡电气有限公司 | 12kV generator outlet killer switch equipment |
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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: 20131030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |