CN201167209Y - Shifting open type cable chamber for metal closed switch equipment - Google Patents
Shifting open type cable chamber for metal closed switch equipment Download PDFInfo
- Publication number
- CN201167209Y CN201167209Y CNU2008201013899U CN200820101389U CN201167209Y CN 201167209 Y CN201167209 Y CN 201167209Y CN U2008201013899 U CNU2008201013899 U CN U2008201013899U CN 200820101389 U CN200820101389 U CN 200820101389U CN 201167209 Y CN201167209 Y CN 201167209Y
- Authority
- CN
- China
- Prior art keywords
- bus
- cable chamber
- cable vault
- insulating cover
- current transformer
- 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 - Lifetime
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- Gas-Insulated Switchgears (AREA)
Abstract
The utility model discloses a cable chamber of removing-type metal closed switching equipment, which is arranged in armor removing-type indoor alternating current metal closed switching equipment. A lower contactor box, a middle part bus bar, a lower branch bus, a current transformer, a cable chamber insulating cover, a lower bus protective cover and an insulator are arranged in the cable chamber, wherein, the upper end of the middle part bus bar is fixedly connected with the lower contactor box, the lower end passes through the current transformer and is connected with the cable chamber insulating cover, the lower branch bus is mutually connected with the cable chamber insulating cover, and the lower bus protective cover is positioned at the upper part of the lower branch bus and is fixed together with the insulator. Because the cable chamber insulating cover and the lower bus protective cover in the proposal play a good promoting role in improving the insulating ability between the phases and between the phase and the ground, the electric field distribution is optimized, the difficult voltage-withstand problem in such a miniaturized contactor cabinet is solved, and the overall voltage-withstand level is improved.
Description
Technical field
The utility model relates to a kind of cable vault of withdraw type metal enclosed switchgear.
Background technology
Withdraw type metal enclosed switchgear, it includes handcart chamber, bus-bar room, cable vault and low-pressure chamber.Be provided with yi word pattern contact box, middle part busbar, inferior division bus and current transformer etc. in this cable vault.As the utility model of Chinese patent database at the ZL2006200891331 of on January 24th, 2007 bulletin, its denomination of invention is " the indoor AC metal closed switch cabinet of armored withdraw type ".Existing cable vault is not provided with protective cover outside busbar, therefore have following shortcoming: one, and non-uniform electric, withstand voltage level is low in miniaturization contactor cabinet; Its two, electric property is poor, insulation property are low.
The utility model content
The purpose of this utility model provides a kind of cable vault of withdraw type metal enclosed switchgear, and it has overcome poor, withstand voltage difference of the existing electric property in background technology cable vault and the low deficiency of insulation property.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of cable vault of withdraw type metal enclosed switchgear, it is arranged in the indoor ac metal closing switch gear of armored withdraw type, be provided with down contact box, middle part busbar, inferior division bus, current transformer, cable vault's insulating cover, Down Highway guard shield and insulator in this cable vault, this busbar upper end, middle part is affixed with following contact box, current transformer and stube cable chamber insulating cover are passed in the lower end, this inferior division bus is connected with cable vault's insulating cover, and this Down Highway guard shield is positioned at inferior division bus top and is fixed together with insulator.
In the preferred embodiment of the present utility model, this current transformer is the core-theaded type current transformer.
In the preferred embodiment of the present utility model, this time contact box is the yi word pattern contact box.
In the preferred embodiment of the present utility model, this Down Highway guard shield is fixed together by bolt and insulator.
The technical program is compared with background technology: because busbar upper end in middle part is affixed with the yi word pattern contact box, current transformer and stube cable chamber insulating cover are passed in the lower end, the inferior division bus is connected with cable vault's insulating cover, the Down Highway guard shield is positioned at inferior division bus top and is fixed together with insulator, therefore overcome the existing deficiency of background technology, and has a following advantage: one, cable vault's insulating cover and Down Highway guard shield in this programme to alternate, good facilitation is played in the raising of insulating capacity mutually, optimized Electric Field Distribution, solve an insoluble withstand voltage difficult problem in miniaturization contactor cabinet like this, improved whole withstand voltage level; Its two, compact conformation, good electric property, insulation property height.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 has illustrated a preferred embodiment switchgear schematic perspective view.
The master that Fig. 2 has illustrated the cable vault of a preferred embodiment switchgear looks schematic diagram.
Fig. 3 has illustrated the A-A generalized section of Fig. 2.
Embodiment
Please refer to Fig. 1, a kind of cabinet is wide to be that 325 millimeters armored withdraw type indoor ac metal closing switch gear, particularly AFC (7.2KV, 400A, 25kA) advances, feeder line contactor cabinet, and it includes handcart chamber A, bus-bar room B, the C of cable vault and low-pressure chamber D.
Please refer to Fig. 2 and Fig. 3, this bus-bar room B comprises three-phase main bus bar 10, three-phase top set bus 12 and three insulators 14.This three top sets bus 12 is electrically connected this three main bus bar 10 respectively, also connects three insulators 14 respectively on this three-phase top set bus 12.This three-phase top set bus 12 is electrically connected three fixed contacts 18 in this " product " font contact box 16.These three fixed contacts 18 are electrically connected with the moving contact of the last contact arm of the interior contactor of handcart chamber A.
Please refer to Fig. 2 and Fig. 3, be provided with yi word pattern contact box 20, middle part busbar 22, three-phase inferior division bus 24, core-theaded type current transformer 26, cable vault's insulating cover 28, Down Highway guard shield 30 and insulator 32 in the C of this cable vault.This yi word pattern contact box 20 is electrically connected with the moving contact of the following contact arm of the interior contactor of handcart chamber A.Be provided with fixed contact 34 in this yi word pattern contact box 20.These middle part busbar 22 upper ends and yi word pattern contact box 20 are affixed, and core-theaded type current transformer 26 and stube cable chamber insulating cover 28 are passed in the lower end.This Down Highway guard shield 30 is positioned at three-phase inferior division bus 24 tops and is fixed together by bolt and insulator 32.This three-phase inferior division bus 24 is connected with cable vault's insulating cover 28.
The above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented with this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (4)
1. the cable vault of a withdraw type metal enclosed switchgear, it is arranged in the indoor ac metal closing switch gear of armored withdraw type, it is characterized in that: be provided with down contact box, middle part busbar, inferior division bus, current transformer, cable vault's insulating cover, Down Highway guard shield and insulator in this cable vault, this busbar upper end, middle part is affixed with following contact box, current transformer and stube cable chamber insulating cover are passed in the lower end, this inferior division bus is connected with cable vault's insulating cover, and this Down Highway guard shield is positioned at inferior division bus top and is fixed together with insulator.
2. the cable vault of a kind of withdraw type metal enclosed switchgear according to claim 1, it is characterized in that: this current transformer is the core-theaded type current transformer.
3. the cable vault of a kind of withdraw type metal enclosed switchgear according to claim 1, it is characterized in that: this time contact box is the yi word pattern contact box.
4. according to the cable vault of claim 1 or 2 or 3 described a kind of withdraw type metal enclosed switchgears, it is characterized in that: this Down Highway guard shield is fixed together by bolt and insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201013899U CN201167209Y (en) | 2008-02-03 | 2008-02-03 | Shifting open type cable chamber for metal closed switch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201013899U CN201167209Y (en) | 2008-02-03 | 2008-02-03 | Shifting open type cable chamber for metal closed switch equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201167209Y true CN201167209Y (en) | 2008-12-17 |
Family
ID=40192599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201013899U Expired - Lifetime CN201167209Y (en) | 2008-02-03 | 2008-02-03 | Shifting open type cable chamber for metal closed switch equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201167209Y (en) |
-
2008
- 2008-02-03 CN CNU2008201013899U patent/CN201167209Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081217 |
|
| CX01 | Expiry of patent term |