CN201252341Y - Power distributing cabinet used for air insulation of a medium voltage protection switch - Google Patents
Power distributing cabinet used for air insulation of a medium voltage protection switch Download PDFInfo
- Publication number
- CN201252341Y CN201252341Y CNU200820119336XU CN200820119336U CN201252341Y CN 201252341 Y CN201252341 Y CN 201252341Y CN U200820119336X U CNU200820119336X U CN U200820119336XU CN 200820119336 U CN200820119336 U CN 200820119336U CN 201252341 Y CN201252341 Y CN 201252341Y
- Authority
- CN
- China
- Prior art keywords
- voltage
- protection switch
- power distribution
- distribution cabinet
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0354—Gas-insulated switchgear comprising a vacuum switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
- H01H33/6661—Combination with other type of switch, e.g. for load break switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/10—Adaptation for built-in fuses
Abstract
The utility model relates to a power distributing cabinet used for the air insulation of a medium voltage protection switch of medium voltage power distributing equipment capable of being arranged in sequence. The power distributing cabinet comprises a vacuum protection switch (3) in the frame (2), a fuse combination (7), voltage transformers (5 and 12) and a bus connecting end and cable connecting ends (6 and 13). The power distributing cabinet is characterized in that the vacuum protection switch (3) is fixedly installed on the side surface of the frame (2) under the condition that the function is not disconnected, a first voltage or current transformer (5) and the bus connecting end (6) are connected to the upper part of the vacuum protection switch (3) along the vertical direction, and an HH fuse (7), a cable connecting end (13) and a second voltage or current transformer (12) are connected to the lower part of the vacuum protection switch (3) along the vertical direction.
Description
Technical field
The utility model relates to a kind of air-insulated power distribution cabinet that is used for the pressure protection switch of medium-voltage distribution equipment.
Background technology
In order on the order of magnitude that is higher than 100000 switching processes, to press and electric current the well-known middle pressure protection switch of controlling by electric coil in a vacuum (vacuum contactor) that adopts in the frequent break-make.This switch is integrated in the power distribution cabinet or contactor distribution board of design complexity and cost costliness.Power distribution cabinet be typically designed to air-insulated have insurance combination in the insertion technology and the complicated contact system that is used to disconnect or also can be designed as gas isolatedly have or do not have the insurance combination and have independently isolating switch.A plurality of mutual compact arranged power distribution cabinets and vacuum contactor constitute medium voltage switchgear equipment.
Exemplarily mentioning vacuum contactor-plug-in type distribution board with the known metal wrapping of title NXAIR at this has bus space, the union end space that has current transformer, stube cable, earthed switch and cup-shaped insulating sleeve that has bus and cup-shaped insulating sleeve and has and inserting technical switch space that has vacuum contactor, a HH insurance summation current transformer and the necessary contact of sailing into that imports in the cup-shaped insulating sleeve.The locus that this class vacuum contactor distribution board significant need is big, high cost and a large amount of maintenance works.
Summary of the invention
The technical problems to be solved in the utility model is, to the medium voltage switchgear equipment that can arrange laying provide a kind of simple in structure, compact and and then save the vacuum contactor distribution board of position, this vacuum contactor distribution board needs less maintenance and with low cost in addition.
According to the utility model; above-mentioned technical problem is solved by a kind of air-insulated power distribution cabinet of pressure protection switch of the medium-voltage distribution equipment that is used for arranging laying; this power distribution cabinet is included in the vacuum protection switch in the framework; the insurance combination; voltage transformer and bus union end and cable connection end; wherein; this vacuum protection switch is not having to be fixedly mounted on the described frame facet under the situation of break function; on this vacuum protection switch, vertically connect first voltage or current transformer and bus union end up, and below connect HH insurance and cable connection end and second voltage or current transformer.
Basic thought of the present utility model is: under the situation of the break function that cancellation usually causes by means of plug-in unit the vacuum protection switch is fixedly connected on the framework of this power distribution cabinet, bus union end and insurance combination vertically are connected with the cable connection end and voltage or current transformer also vertically are laid in this power distribution cabinet in this case.
Can save this power distribution cabinet of position ground design and because simple in structure and cost is cheap and need less maintenance thus.This power distribution cabinet can be designed to have obviously littler width by the building block of vertically laying this power distribution cabinet up and down stackedly than known contactor distribution board.The disconnection process that needs in case of necessity can realize by being connected this medium voltage switchgear equipment medium-voltage distribution dish before.
Description of drawings
By means of unique accompanying drawing embodiment of the present utility model is elaborated below,
Fig. 1 shows the end view of the air-insulated power distribution cabinet that is used for pressing protection switch.
Embodiment
As shown in the figure, this air-insulated power distribution cabinet 1 has framework 2, installs regularly to have three vacuum protection switches 3 corresponding to the vacuum switch tube of each phase in the three-phase (not shown) on this framework 2.This vacuum protection switch 3 links to each other with bus union end 6 at the voltage transformer 5 (or current transformer) of these vacuum protection switch 3 upper fixed on framework 2 by connecting rail 4 and passing through.Downside at this vacuum protection switch 3 corresponds respectively to the HH insurance 7 (insurance combination) that three phase places are connected with vertical orientation, and the contact cover 8,9 that insures 7 both sides at this HH is fixed on the framework 2 by insulated column 10 respectively.HH insurance 7 is used for insuring 7 displays that send safety signal when moving at this HH by switching mechanism 11 and one (unshowned) and links to each other.Being connected with another voltage transformer 12 (or current transformer) on following contact cover 9 on the one hand is connected with the cable 14 that is used for and leads to customer to be used for to power supply such as (unshowned) switch and control device and to be connected with cable connection end 13 on the other hand.
By cancellation wittingly usually by means of plug-in unit cause but (implementing) the disconnection process that after all just needs once in a while and the layout of substantially perpendicularly fixing up and down by vacuum protection switch 3 and HH insurance 7 and voltage transformer 5,12 (or current transformer) by preposition medium-voltage distribution dish and with this power distribution cabinet design structure compactness very; that is to say, utilize the width of the 500mm that on narrow side, reaches according to present embodiment and design this power distribution cabinet obviously narrower than traditional air-insulated power distribution cabinet.The degree of depth of execution mode described herein and highly be 1000mm or 1750mm.Therefore the medium-voltage distribution equipment that is made of a plurality of mutual compact arranged vacuum contactor power distribution cabinets needs less position and maintenance with low cost in addition and need be less.
Claims (5)
1. the air-insulated power distribution cabinet of the pressure protection switch of a medium-voltage distribution equipment that is used for to arrange laying; this power distribution cabinet is included in the vacuum protection switch (3) in the framework (2); insurance combination (7); voltage transformer (5; 12) and bus union end and cable connection end (6; 13); it is characterized in that; this vacuum protection switch (3) is not having to be fixedly mounted under the situation of break function on the side of described framework (2); on this vacuum protection switch (3), vertically connect first voltage or current transformer (5) and bus union end (6) up, and below connect HH insurance (7) and cable connection end (13) and second voltage or current transformer (12).
2. according to the described power distribution cabinet of claim 1, it is characterized in that the specific disconnection process of described medium-voltage distribution equipment realizes by preposition medium-voltage distribution dish.
3. according to the described power distribution cabinet of claim 1, it is characterized in that, directly be fixed on to described first and second voltage or current transformer (5,12) fixed-site on the described side of framework (2) and the contact cover (8,9) that is used to carry the HH insurance (7) of vertical laying is fixed on another opposite side of this framework (2) by means of insulated column (10).
4. according to the described power distribution cabinet of claim 3, it is characterized in that described contact cover (8) links to each other with the display that is used for security alarm by construction of switch (11).
5. according to the described power distribution cabinet of claim 3, it is characterized in that described cable connection end (13) is connected on the contact cover that passes through insulated column (10) support of below.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200720008579 DE202007008579U1 (en) | 2007-06-15 | 2007-06-15 | Air-insulated switch cell for a medium-voltage contactor switch |
| DE202007008579.6 | 2007-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201252341Y true CN201252341Y (en) | 2009-06-03 |
Family
ID=38513942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820119336XU Expired - Lifetime CN201252341Y (en) | 2007-06-15 | 2008-06-16 | Power distributing cabinet used for air insulation of a medium voltage protection switch |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN201252341Y (en) |
| DE (1) | DE202007008579U1 (en) |
| ES (1) | ES1068242Y (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE534914C2 (en) * | 2010-06-18 | 2012-02-14 | Otto Electric Ltd | Single phase insulation consisting of air insulation and screens |
| CN103490293A (en) * | 2013-10-09 | 2014-01-01 | 昆山振宏电子机械有限公司 | Electric control cabinet current transformer mounting groove plate and electric control cabinet |
-
2007
- 2007-06-15 DE DE200720008579 patent/DE202007008579U1/en not_active Expired - Lifetime
-
2008
- 2008-06-13 ES ES200801265U patent/ES1068242Y/en not_active Expired - Fee Related
- 2008-06-16 CN CNU200820119336XU patent/CN201252341Y/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE202007008579U1 (en) | 2007-09-06 |
| ES1068242U (en) | 2008-09-16 |
| ES1068242Y (en) | 2008-12-16 |
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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: 20090603 |
|
| CX01 | Expiry of patent term |