CN201656383U - Double-pole compact enclosed busbar with CTs - Google Patents
Double-pole compact enclosed busbar with CTs Download PDFInfo
- Publication number
- CN201656383U CN201656383U CN2010201806614U CN201020180661U CN201656383U CN 201656383 U CN201656383 U CN 201656383U CN 2010201806614 U CN2010201806614 U CN 2010201806614U CN 201020180661 U CN201020180661 U CN 201020180661U CN 201656383 U CN201656383 U CN 201656383U
- Authority
- CN
- China
- Prior art keywords
- housing
- enclosed busbar
- casing
- cable
- current transformers
- 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
A double-pole compact enclosed busbar with CTs comprises a rectangular casing and two circuit conductors mounted inside the casing, wherein the two circuit conductors are horizontally disposed in section and connected with the tubular wall of the casing through a plurality of support insulator sets. Two current transformers are longitudinally staggered inside the casing, the two circuit conductors respectively pass through the two current transformers which are fixed at the bottom of the casing, a cable duct is arranged on the lateral face of the tubular wall of the casing, cables led out from secondary terminals of the current transformers pass through pores on the side wall to enter the cable duct and are led to a junction box after being fixed, and insulating rubber rings preventing insulating layers of the cables from being damaged during cable laying are sleeved on the peripheries of the pores on the side wall. The double-pole compact enclosed busbar has the advantages of reasonable structure, installation convenience, beautiful layout and the like.
Description
Technical field
The utility model relates to a kind of bipolar band CT compact enclosed busbar, belong to power equipment.
Background technology
Enclosed busbar has been widely used in occasions such as power plant, electric substation, becomes a kind of important equipment for power transmission and distribution.The thermal power plant generator neutral point generally adopts the enclosed busbar of one pole band CT at present.This enclosed busbar is applicable to the lead-out mode of 3 terminals of generator neutral point; when generator neutral point has 6 terminals to draw because thermal power plant outlet spatial limitation; usually adopt 6 terminals to merge into 3 terminal outlets; though no problem on the spatial placement like this, can not make full use of generator 6 terminals draw can install the generator transverse differential protection to generator unit stator turn-to-turn short circuit protect.And do not have a kind of suitable enclosed busbar product can solve the problem of this space anxiety in the market, generator neutral point 6 terminals can be drawn smoothly, and in enclosed busbar, install current transformer.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned existence, and provide a kind of rational in infrastructure, the electric energy transmitting quality is good, the bipolar band CT compact enclosed busbar of manufacturing and easy maintenance.
The purpose of this utility model is finished by following technical solution, it includes the housing of a rectangle, two return conductors are housed in the housing, and described two return conductors are horizontal arrangement on section, and conductor dbus is crossed equally distributed many group supporting insulators and linked to each other with the barrel of housing; Be staggeredly arranged in housing before and after two current transformers are arranged, two return conductors pass from these two current transformers respectively, and current transformer is fixed on the bottom of housing.
The barrel side of described housing is provided with cable trough, and the cable of drawing from the Current Transformer Secondary terminal is worn to cable trough by the sidewall aperture and cause the junction box after fixing.
Be with the electro-insulating rubber ring that damages cable insulation when preventing cable laying around the described sidewall aperture.
The front end of described supporting insulator is connected with corresponding conductor by jointing, and the rear end of supporting insulator then is connected with housing is inboard; Described conductor is the bus that tube type bus or grooved bus or every utmost point are made of side by side several conductors.
The utility model has the advantages that: one, rational in infrastructure, two polar conductor levels or be arranged vertically can be installed the bipolar current instrument transformer respectively in less space; Two, because the enclosed busbar sidewall installs cable trough additional, can conveniently install, and make wiring attractive in appearance.
Description of drawings
Fig. 1 is a section structure schematic diagram of the present utility model.
Fig. 2 is a side structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.Shown in Fig. 1,2, the utility model is made up of barrel 1, conductor 2, current transformer 3, supporting insulator 4 and the cable trough 5 etc. of housing.Enclosed busbar comprises the housing of a rectangle, two return conductors 2 are housed in the housing, this two conductor 2 is horizontal arrangement on section, conductor 2 links to each other with the barrel 1 of housing by equally distributed many group supporting insulators 4, the front end of described supporting insulator 4 is connected with corresponding each conductor 2 by jointing, and the rear end of supporting insulator 4 then is connected with housing is inboard.Described conductor 2 can adopt tube type bus, grooved bus or other forms of bus (every utmost point also can be made of side by side several conductors).Two current transformer 3 front and back are staggeredly arranged, the two poles of the earth conductor 2 passes from these two current transformers 3 respectively, current transformer 3 is fixed on the bottom of enclosed busbar housing, the side of enclosed busbar housing is provided with cable trough 5, the cable of drawing from current transformer 3 secondary terminals in the enclosed busbar housing (overlaps the electro-insulating rubber ring by the sidewall aperture around the aperture, damage cable insulation when preventing cable laying) wear to cable trough 5 and cause the junction box, in cable trough 5, cable is fixed.
Claims (4)
1. bipolar band CT compact enclosed busbar, it includes the housing of a rectangle, two return conductors are housed in the housing, it is characterized in that described two return conductors (2) are horizontal arrangement on section, conductor (2) links to each other with the barrel (1) of housing by equally distributed many group supporting insulators (4); Be staggeredly arranged in housing before and after two current transformers (3) are arranged, two return conductors (2) pass from these two current transformers (3) respectively, and current transformer (3) is fixed on the bottom of housing.
2. bipolar band CT compact enclosed busbar according to claim 1, barrel (1) side that it is characterized in that described housing is provided with cable trough (5), and the cable of drawing from current transformer (3) secondary terminal is worn to cable trough (5) by the sidewall aperture and cause the junction box after being fixed.
3. bipolar band CT compact enclosed busbar according to claim 2 is characterized in that being with the electro-insulating rubber ring that damages cable insulation when preventing cable laying around the described sidewall aperture.
4. bipolar band CT compact enclosed busbar according to claim 1 is characterized in that the front end of described supporting insulator (4) is connected with corresponding conductor (2) by jointing, and the rear end of supporting insulator (4) then is connected with housing is inboard; Described conductor (2) is the bus that tube type bus or grooved bus or every utmost point are made of side by side several conductors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201806614U CN201656383U (en) | 2010-04-30 | 2010-04-30 | Double-pole compact enclosed busbar with CTs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201806614U CN201656383U (en) | 2010-04-30 | 2010-04-30 | Double-pole compact enclosed busbar with CTs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656383U true CN201656383U (en) | 2010-11-24 |
Family
ID=43121621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201806614U Expired - Fee Related CN201656383U (en) | 2010-04-30 | 2010-04-30 | Double-pole compact enclosed busbar with CTs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201656383U (en) |
-
2010
- 2010-04-30 CN CN2010201806614U patent/CN201656383U/en not_active Expired - Fee Related
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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: 20101124 Termination date: 20150430 |
|
| EXPY | Termination of patent right or utility model |