CN203747287U - Solid insulation ring network cabinet - Google Patents
Solid insulation ring network cabinet Download PDFInfo
- Publication number
- CN203747287U CN203747287U CN201420063236.5U CN201420063236U CN203747287U CN 203747287 U CN203747287 U CN 203747287U CN 201420063236 U CN201420063236 U CN 201420063236U CN 203747287 U CN203747287 U CN 203747287U
- Authority
- CN
- China
- Prior art keywords
- room
- switch
- insulation ring
- solid insulation
- bus
- 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
Links
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The utility model discloses a solid insulation ring network cabinet. The rear part of the cabinet body is divided into an operation room, a switch room and a voltage discharge room from top to bottom in turn. The front part of the cabinet body is divided into a bus room and a cable room from top to bottom in turn. An operation mechanism which is used for switch opening and closing, a switch main shaft and an isolation main shaft are arranged in the operation room. Three groups of single-phase vacuum interrupters, a switch pull rod, an insulation pull rod, a contact knife, an insulation base and a conductive base are arranged in the switch room. The voltage discharge room is a voltage discharge channel. A grounding contact, a static contact and a main bus are arranged in the bus room. A cable joint and a current transformer element are arranged in the cable room. The solid insulation ring network cabinet provided by the utility model has the advantages of compact and clear structure, space saving, reduced volume, convenient maintaining, complete circuit insulation and environmental protection, and does not emit SF6 and other pollution gases.
Description
Technical field
The utility model relates to a kind of ring main unit, particularly a kind of solid insulation ring main unit.
Background technology
The existing ring main unit generally using is mainly two kinds of air insulation ring main unit and SF6 insulation ring main units.Air insulation ring main unit is comprised of high-tension cell and low pressure interval; high-tension cell disposes the primary elements such as isolating switch, on-load switch, fuse and earthed switch; low pressure arranged spaced has secondary meter and controls protection component; because air insulation ring main unit volume is large, cost is high, take up room large, be eliminated gradually.SF6 insulation ring main unit internal configurations has SF6 switch, SF6 is a kind of inertia greenhouse gas, easily sneak into the poisonous gas such as sulfur fluoride, carrying out thering is toxicity after arc extinguishing, easily leaking, and SF6 insulation ring main unit electrified body is exposed, be subject to the erosion of air, dust, easily cause the corrosion of electrified body, easily cause human casualty accident, so the supervision of its use is progressively strengthened.
On market, there is solid insulation ring main unit at home and abroad in recent years.So-called solid insulation is poured into a mould array vacuum switch and the whole epoxy resin that adopts of relevant live part exactly, by automatic pressure gel art designs, has manufactured solid insulation power supply unit.This kind of power supply unit, without the discharge of any noxious substance, meets environmental requirement completely.
Utility model content
Utility model object: for the problems referred to above, the purpose of this utility model is to provide the solid insulation ring main unit of a kind of compact conformation, good, the environmental protection of insulation usefulness.
Technical scheme: a kind of solid insulation ring main unit, cabinet rear portion is divided into operating room, switch gear room, pressure releasing chamber from top to bottom successively, and cabinet front portion is divided into bus-bar room, cable vault from top to bottom successively;
In described operating room, be provided with operating mechanism, switch spindle, isolation main shaft for divide-shut brake;
In described switch gear room, be provided with three groups of single-phase vacuum interrupters, switch lever, insulated tension pole, contact knife, insulating base, conductive seat;
Described pressure releasing chamber is pressure release passage;
In described bus-bar room, be provided with grounding contact, fixed contact, main bus bar;
In described cable vault, be provided with cable joint, current transformer elements.
Described switch spindle links by described operating mechanism and described switch lever, described switch lever lower end is connected with the moved end of described vacuum interrupter, the quiet end of described vacuum interrupter is connected with described conductive seat, the described insulating base of the outside coated epoxy resin layer of described conductive seat, forms main switch separation-and-combination structure.
Described isolation main shaft is connected with described insulated tension pole by described operating mechanism, described insulated tension pole lower end is connected with described contact knife middle part, and described contact knife one end and described switch lever are hinged, and the other end docks with described grounding contact or described fixed contact, form isolating switch deciliter and ground structure, when docking with fixed contact, isolating switch, in closing position, is connected with main bus bar, when docking with grounding contact, isolating switch, in open position, is connected with cabinet shell, is ground state.
Described insulating base is provided with three groups side by side, and corresponding power three-phase forms three-phase electricity air circuit unit.
Beneficial effect: compared with prior art, the utility model has the advantages that compact conformation, clear, save space, reduced volume, be convenient to safeguard, and reached circuit all insulation, there is no the dusty gas discharges such as SF6, environmental protection.
Accompanying drawing explanation
Fig. 1 is that schematic diagram is separated in the utility model cabinet chamber;
Fig. 2 is the utility model internal structure cutaway view.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment and only for the utility model is described, be not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
As shown in accompanying drawing 1-2, a kind of solid insulation ring main unit, cabinet rear portion is divided into operating room 1, switch gear room 2, pressure releasing chamber 3 from top to bottom successively, and cabinet front portion is divided into bus-bar room 4, cable vault 5 from top to bottom successively;
In operating room 1, be provided with operating mechanism 6, switch spindle 7, isolation main shaft 8 for divide-shut brake;
In switch gear room 2, be provided with three groups of single-phase vacuum interrupters 9, switch lever 10, insulated tension pole 11, contact knife 12, insulating base 13, conductive seat 14;
Pressure releasing chamber 3 is pressure release passage;
In bus-bar room 4, be provided with grounding contact 15, fixed contact 16, main bus bar 17;
In cable vault 5, be provided with cable joint, current transformer elements.
Forming of main switch separation-and-combination structure: switch spindle 7 is by operating mechanism 6 and switch lever 10 interlocks, switch lever 10 lower ends are connected with the moved end 18 of vacuum interrupter 9, the quiet end 19 of vacuum interrupter 9 is connected with conductive seat 14, the insulating base 13 of conductive seat 14 outside coated epoxy resin layers, thus realize all insulation of circuit.
Forming of isolating switch deciliter and ground structure: isolation main shaft 8 is connected with insulated tension pole 11 by operating mechanism 6, insulated tension pole 11 lower ends are connected with contact knife 12 middle parts, contact knife 12 one end and switch lever 10 are hinged, and the other end docks with grounding contact 15 or fixed contact 16, when docking with fixed contact 16, isolating switch is in closing position, be connected with main bus bar 17, when docking with grounding contact 15, isolating switch is in open position, being connected with cabinet shell, is ground state.
Insulating base 13 is provided with three groups side by side, and corresponding power three-phase forms three-phase electricity air circuit unit.
After vacuum interrupter separating brake, just can disconnecting switch operation, when isolating switch is during in closing position, then vacuum interrupter is closed, major loop is connected; Only have after vacuum interrupter separating brake, isolating switch ability separating brake, after isolating switch separating brake, the contact knife of isolating switch and grounding contact are connected, the vacuum interrupter that now can close, now major loop is grounded through vacuum interrupter, contact knife, grounding contact.
Cabinet corresponding to main bus bar position is provided with inspection hole, can observe easily action situation and the Grounding of contact knife.Main bus bar loop connects three-phase and forms by isolated bus, intermediate bus bar jockey and termination bus connecting device, has accomplished all insulation, hermetically sealed of bus.
Cable joint can connect two straight-through current transformers, saves space, reduces the volume of cabinet, uses computer integrated protection can realize overcurrent and the fast tripping protection of circuit.
Claims (4)
1. a solid insulation ring main unit, is characterized in that: cabinet rear portion is divided into operating room (1), switch gear room (2), pressure releasing chamber (3) from top to bottom successively, and cabinet front portion is divided into bus-bar room (4), cable vault (5) from top to bottom successively;
In described operating room (1), be provided with operating mechanism (6), switch spindle (7), isolation main shaft (8) for divide-shut brake;
In described switch gear room (2), be provided with three groups of single-phase vacuum interrupters (9), switch lever (10), insulated tension pole (11), contact knife (12), insulating base (13), conductive seat (14);
Described pressure releasing chamber (3) is pressure release passage;
In described bus-bar room (4), be provided with grounding contact (15), fixed contact (16), main bus bar (17);
Described cable vault is provided with cable joint, current transformer elements in (5).
2. solid insulation ring main unit according to claim 1, it is characterized in that: described switch spindle (7) is by described operating mechanism (6) and described switch lever (10) interlock, described switch lever (10) lower end is connected with the moved end (18) of described vacuum interrupter (9), the quiet end (19) of described vacuum interrupter (9) is connected with described conductive seat (14), the described insulating base (13) of the outside coated epoxy resin layer of described conductive seat (14).
3. solid insulation ring main unit according to claim 1, it is characterized in that: described isolation main shaft (8) is connected with described insulated tension pole (11) by described operating mechanism (6), described insulated tension pole (11) lower end is connected with described contact knife (12) middle part, described contact knife (12) one end and described switch lever (10) are hinged, and the other end docks with described grounding contact (15) or described fixed contact (16).
4. solid insulation ring main unit according to claim 1, is characterized in that: described insulating base (13) is provided with three groups side by side, and corresponding power three-phase forms three-phase electricity air circuit unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063236.5U CN203747287U (en) | 2014-02-12 | 2014-02-12 | Solid insulation ring network cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063236.5U CN203747287U (en) | 2014-02-12 | 2014-02-12 | Solid insulation ring network cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203747287U true CN203747287U (en) | 2014-07-30 |
Family
ID=51347046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420063236.5U Expired - Fee Related CN203747287U (en) | 2014-02-12 | 2014-02-12 | Solid insulation ring network cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203747287U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993416A (en) * | 2015-06-24 | 2015-10-21 | 许婷 | Intelligent environmental-friendly type solid insulation ring main unit |
-
2014
- 2014-02-12 CN CN201420063236.5U patent/CN203747287U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993416A (en) * | 2015-06-24 | 2015-10-21 | 许婷 | Intelligent environmental-friendly type solid insulation ring main unit |
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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: 20140730 Termination date: 20200212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |