CN201699331U - Ring main unit - Google Patents
Ring main unit Download PDFInfo
- Publication number
- CN201699331U CN201699331U CN2010202283888U CN201020228388U CN201699331U CN 201699331 U CN201699331 U CN 201699331U CN 2010202283888 U CN2010202283888 U CN 2010202283888U CN 201020228388 U CN201020228388 U CN 201020228388U CN 201699331 U CN201699331 U CN 201699331U
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- China
- Prior art keywords
- operating mechanism
- switch
- main unit
- ring main
- fuse
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- Expired - Fee Related
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Abstract
A ring main unit relates to an electrical switch cabinet, and aims to solve such problems of the conventional operating mechanism as large occupied space, short service life and low switch-off speed. A high-voltage chamber, a low-voltage chamber and a cable chamber are arranged in a ring main unit body, wherein III type load switches are fixed in the high-voltage chamber, an operating mechanism is fixed in the low-voltage chamber and connected with the upper end of a linkage rod, the lower end of the linkage rod is connected with a grounding switch, upper fuse holders are fixed at the lower ends of the III type load switches, lower fuse holders are connected on the grounding switch, and fuse protectors are arranged between the upper fuse holders and the lower fuse holders. The utility model adopts the novel operating mechanism (i.e. the operating mechanism of a gaseous insulation switch cabinet), so that the ring main unit occupies a smaller space, and more secondary elements can be additionally mounted in the operating mechanism chamber; and the ring main unit has the advantages of more selectable operating voltage classes, 5,000 times of operation and higher switch-off speed.
Description
Technical field
The utility model relates to a kind of cabinet.
Background technology
XGN15-12 type metal switch cabinet is to use very many economical terminal distribution products during urban distribution network is built, and country is more and more higher to the requirement of grid automation now, a lot of distribution power automation terminals need be installed in the switch cubicle, make things convenient for state that the user can know not only that in the control room, backstage switch cubicle is present and also can be in the control room, backstage remote control switch deciliter, and very many automation control appliances just need be installed in switch cubicle in order to reach such requirement, original ring main unit is because operating mechanism is very big, and the electric operating supply voltage that when design considered only is 48V～220V, for certain areas need 24V more inferior grade voltage can not meet the demands, be to make a comprehensive automation control cabinet in addition again at the original solution of the problems referred to above.Big for the occupation of land space of switchgear house like this, and the maintenance complex circuit of getting up is pretty troublesome, and the electric pressure of 24V is then done the control power supply in addition.
The operating mechanism branch that is adopted in the existing switch cubicle, the number of times of combined floodgate seldom have only 500 times designed life, break down easily after the continued operation repeatedly.And existing operating mechanism do not consider that to opening velocity opening velocity is very slow when switch breaks down, when line fault occurring, and timely disengagement failure.
The utility model content
The purpose of this utility model is to have the problem that operating mechanism takes up room greatly, useful life is short, opening velocity is slow now in order to solve, and then a kind of (XGN15-12) is provided ring main unit.
The utility model is achieved through the following technical solutions: the utility model comprises cabinet, III type on-load switch, last fuse holder, fuse, following fuse holder, latch lever, earthed switch and operating mechanism, the inside of described cabinet is respectively equipped with the hyperbaric chamber, low-pressure chamber and cable vault, III type on-load switch is fixed in the described hyperbaric chamber, operating mechanism is fixed in the described low-pressure chamber, the upper end of latch lever is connected with operating mechanism, the lower end of latch lever is connected with earthed switch, the lower end of III type on-load switch is fixed with fuse holder, be connected with down fuse holder on the earthed switch, be provided with fuse between last fuse holder and the following fuse holder.
The beneficial effects of the utility model: the utility model has adopted novel operating mechanism (the employed operating mechanism of a kind of gas insulation switch cabinet), makes switch cubicle save the space more, and the operating mechanism chamber can install more secondary component additional.Duo operating voltage grade can be selected for use more, and number of operations can reach 5000 times, and opening velocity is more accelerated.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model,
Fig. 2 is that the A of Fig. 1 is to view.
Embodiment
Embodiment one: seeing figures.1.and.2 describes, present embodiment comprises cabinet 1, III type on-load switch 3, last fuse holder 5, fuse 6, following fuse holder 7, latch lever 8, earthed switch 9 and operating mechanism 15, the inside of described cabinet 1 is respectively equipped with hyperbaric chamber 2, low-pressure chamber 4 and cable vault 10, III type on-load switch 3 is fixed in the described hyperbaric chamber 2, operating mechanism 15 is fixed in the described low-pressure chamber 4, the upper end of latch lever 8 is connected with operating mechanism 15, the lower end of latch lever 8 is connected with earthed switch 9, the lower end of III type on-load switch 3 is fixed with fuse holder 5, be connected with down fuse holder 7 on the earthed switch 9, be provided with fuse 6 between last fuse holder 5 and the following fuse holder 7.
Embodiment two: seeing figures.1.and.2 describes, present embodiment also comprises guidance panel 13, guidance panel 13 is arranged on the exterior lateral sides of low-pressure chamber 4 of cabinet 1, has ground connection cutter handle hole 12 and on-load switch handle hole 14 on the guidance panel 13.Other are identical with embodiment one.
Embodiment three: seeing figures.1.and.2 describes, and present embodiment also comprises cable vault's door 11, and cable vault's door 11 is arranged on the exterior lateral sides of cable vault 10 of cabinet 1.Other are identical with embodiment two.
Embodiment four: describe with reference to Fig. 1, present embodiment described upward fuse holder 5, fuse 6 and following fuse holder 7 are three groups.Other are identical with embodiment three.
Adopted the operating mechanism that originally only just uses,, improved cabinet body structure and interlocking etc., become a kind of novel cabinet type for this mechanism at high-end inflation cabinet.
As depicted in figs. 1 and 2, novel operating mechanism is more little, and interlocking is compact more.
This operating mechanism interlocking device cooperates more perfect with each parts, make the number of operations of this operating mechanism more.Opening velocity is faster.
As depicted in figs. 1 and 2, whole cabinet is separated into three individual compartment, hyperbaric chamber, low-pressure chamber and cable vault.Operating mechanism is installed in the low-pressure chamber, on-load switch is installed in the hyperbaric chamber, fuse and earthed switch are installed in the cable vault, and novel operating mechanism is connected to each other this on-load switch earthed switch, these three indoor main components and parts of fuse, and have interlock connection mutually.
Operating mechanism can be controlled the separating brake and the combined floodgate of on-load switch, operating mechanism drives earthed switch by blocking lever, and the inner interlocking of operating mechanism guarantees must guarantee between operational load switch and the operational grounding switch that on-load switch could the operational grounding switch under gate-dividing state.Fuse holder up and down is housed on the earthed switch, fuse is installed in the fuse holder, getting in touch between fuse and operating mechanism and the on-load switch is, a circuit breaks down when operation, fuse blows, the tripping operation that drives operating mechanism is interlocked, and makes operating mechanism disjunction on-load switch automatically.
Earthed switch links to each other with operating mechanism by link rod, also interlocking relation between the Xiamen of operating mechanism and cable vault, and the interlocking of operating mechanism inside could allow the people can open the Xiamen of cable vault when having only earthed switch to close a floodgate.
Operating mechanism is the very important parts of this switch cubicle, by it and on-load switch, earthed switch, and fuse, interlocking guarantees the safety and stablization of whole switch cubicle between the Xiamen of cable vault.
The above; it only is the preferable embodiment of the utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.
Claims (4)
1. ring main unit, comprise: cabinet (1), III type on-load switch (3), last fuse holder (5), fuse (6), following fuse holder (7), latch lever (8), earthed switch (9) and operating mechanism (15), it is characterized in that, the inside of described cabinet (1) is respectively equipped with hyperbaric chamber (2), low-pressure chamber (4) and cable vault (10), III type on-load switch (3) is fixed in the described hyperbaric chamber (2), operating mechanism (15) is fixed in the described low-pressure chamber (4), the upper end of latch lever (8) is connected with operating mechanism (15), the lower end of latch lever (8) is connected with earthed switch (9), the lower end of III type on-load switch (3) is fixed with fuse holder (5), be connected with down fuse holder (7) on the earthed switch (9), be provided with fuse (6) between last fuse holder (5) and the following fuse holder (7).
2. a kind of ring main unit according to claim 1, it is characterized in that, also comprise guidance panel (13), guidance panel (13) is arranged on the exterior lateral sides of low-pressure chamber (4) of cabinet (1), and scrounging respectively on the guidance panel (13) has ground connection cutter handle hole (12) and on-load switch handle hole (14).
3. a kind of ring main unit according to claim 2 is characterized in that, also comprises cable vault's door (11), and cable vault's door (11) is arranged on the exterior lateral sides of cable vault (10) of cabinet (1).
4. a kind of ring main unit according to claim 3 is characterized in that, described upward fuse holder (5), fuse (6) and following fuse holder (7) are three groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202283888U CN201699331U (en) | 2010-06-13 | 2010-06-13 | Ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202283888U CN201699331U (en) | 2010-06-13 | 2010-06-13 | Ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201699331U true CN201699331U (en) | 2011-01-05 |
Family
ID=43400575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202283888U Expired - Fee Related CN201699331U (en) | 2010-06-13 | 2010-06-13 | Ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201699331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928848A (en) * | 2014-03-13 | 2014-07-16 | 上海正昊电力科技有限公司 | Button cover assembly for high voltage ring main unit operation panel |
-
2010
- 2010-06-13 CN CN2010202283888U patent/CN201699331U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928848A (en) * | 2014-03-13 | 2014-07-16 | 上海正昊电力科技有限公司 | Button cover assembly for high voltage ring main unit operation panel |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20160613 |