CN203456783U - Draw-out type air insulation ring main unit - Google Patents
Draw-out type air insulation ring main unit Download PDFInfo
- Publication number
- CN203456783U CN203456783U CN201320507291.4U CN201320507291U CN203456783U CN 203456783 U CN203456783 U CN 203456783U CN 201320507291 U CN201320507291 U CN 201320507291U CN 203456783 U CN203456783 U CN 203456783U
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- vacuum circuit
- inlet wire
- outgoing line
- breaker
- outlet
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Abstract
The utility model discloses a draw-out type air insulation ring main unit. The draw-out type air insulation ring main unit comprises a unit body, an incoming line access system, an outgoing line access system, an incoming line unit vacuum breaker, and a plurality of outgoing line unit vacuum breakers. The incoming line unit vacuum breaker is connected with the plurality of outgoing line unit vacuum breakers through a main bus. The incoming line unit vacuum breaker and the plurality of outgoing line unit vacuum breakers are arranged in the unit body in a draw-out manner. According to the draw-out type air insulation ring main unit, the incoming line unit vacuum breaker is connected with the plurality of outgoing line unit vacuum breakers through the main bus, the incoming line unit vacuum breaker and the plurality of outgoing line unit vacuum breakers are designed to be capable of being drawn out, therefore, the problems of gas leakage and explosion of an SF6 air insulation ring main unit are solved, and the defects that a solid insulation ring main unit is instable in product quality and high in manufacturing cost are overcome; the space occupied by the draw-out type air insulation ring main unit approximates that occupied by the SF6 air insulation ring main unit and that occupied by the solid insulation ring main unit; and the draw-out type air insulation ring main unit which is convenient to maintain, can operate normally in severe environments such as severe cold, highland, moist, highly windy and dusty, and the like.
Description
Technical field
The utility model relates to the ring main unit using in a kind of electric power system.
Background technology
Ring main unit is for midium voltage cable line sectionalizing, contact and tap load.The dielectric of ring main unit has experienced air insulation, air and SF6 gas mix insulation, SF6 gas-insulated and take epoxy resin and vacuum insulation is main solid insulation.
Air-insulated applicating history is long, and technology is very ripe, but limits because of the insulating properties the subject of knowledge and the object of knowledge of air, and air insulation switch cubicle volume is larger, and floor space is large, and easily affected by environment, and destabilizing factor is more, is therefore generally used for indoor environment.
SF6 aerochemistry character is highly stable, has excellent insulation and arc extinction performance, so SF6 gas-insulated ring network cabinet is long-pending little, and compact conformation, is not subject to the impact of external environment factor, strong adaptability.But SF6 gas is greenhouse gas, from environmental angle, should be as far as possible few with or without SF6 gas, because SF6 gas-insulated ring network cabinet inevitably can exist in reclaiming and leak and discharge at inflation, operation, gas, severe contamination air.Although SF6 gas-insulated ring network cabinet is constantly perfect, be in operation and often run into the problem of gas leakage, the only normal operation of SF6 gas-insulated ring network cabinet is caused to great hidden danger.In addition, relatively high pressure GIS equipment is concentrated and is convenient to management, and SF6 gas-insulated ring network cabinet, because widely distributed, is difficult to supervision and management in actual motion, brings hidden danger also can to the operation of SF6 gas-insulated ring network cabinet.In severe cold area, SF6 air pressure can reduce, even liquefaction.In highlands, due to the reducing of atmospheric pressure, SF6 gas-insulated ring network cabinet casing can automatic expansion, easily causes gas leakage.
Solid loop-net cabinet is to adopt solid insulating material as the ring main unit of main insulation medium, the leading body loops such as vacuum interrupter and conduction connection, isolating switch, earthed switch, main bus bar are encapsulated as to one or several and have certain function with solid dielectric insulation is coated after single or combination, and the module that possesses all insulation, hermetically sealed performance that can again combine and expand, the palp surface-coated of people has conductor or semiconductive shielding layer the direct ring main unit of reliable ground.Solid insulation ring main unit has the features such as all insulation, hermetically sealed, modularization, miniaturization, SF6 gas and corresponding gas tank parts have been fully phased out, while thoroughly having solved due to the short circuit of gas tank internal switch, because of pressure rise the caused accident that sets off an explosion, avoided the pollution of SF6 gas to environment completely.Solid insulation ring main unit has the ability of more outstanding anti-adverse environment than SF6 gas-insulated ring network cabinet, under the environment such as severe cold, plateau, humidity, high wind sand, adaptability is stronger.But the technological requirement of solid insulation ring main unit is higher than SF6 gas-insulated ring network cabinet, if process means imperfection, the hidden danger that insulate, probability of malfunction, harmfulness, higher than SF6 gas-insulated ring network cabinet, need to be guaranteed raw material quality and technological level.Solid insulation ring main unit and SF6 gas-insulated ring network cabinet have principle defect equally.The thermal coefficient of expansion of epoxy resin thermal coefficient of expansion and vacuum interrupter pottery (glass) and copper conductor differs too large, although manufactory has all adopted silastic cord breaker, silane coupling and added the improvement measures such as special rubber particles in epoxy resin epoxy resin and ceramic interface, but prisoner's arc control device complex contour, residual stress concentration phenomenon in the inhomogeneous and solidification process that epoxy resin flows, all can cause waste product or operation in manufacture process to bury disaster.Particularly, in the operational site that temperature difference per day is large, load variations is large, the hidden danger ftractureing between epoxy resin and vacuum interrupter and copper conductor is even more serious.Except interface cracking produces air gap, make rapid increasing of field intensity in air gap and produce the hidden danger of partial discharge, it is also crucial at metal electrode, in the design of the wedge air gap of---air---epoxy resin two point of interfaces, whether having done good processing.Process badly, field intensity is high herein, and office is high-volume large, all can affect solid insulation performance.Solid insulation ring main unit is because whole galvanic circle is all wrapped up by epoxy resin, and impact heat radiation, and intensifier ring epoxy resins heat ageing, so this product insulation fault is more.In addition, solid insulation ring main unit cost is higher.
Utility model content
The purpose of this utility model is that a kind of pull-out type air insulation ring main unit will be provided, both SF6 gas-insulated ring network cabinet Leakage Gas and blast problem had been solved, also solid insulation ring main unit product quality shakiness and the high shortcoming of cost have been solved, easy to maintenance, and can normally operation under the adverse circumstances such as severe cold, plateau, humidity, high wind sand.
For achieving the above object, the utility model provides a kind of pull-out type air insulation ring main unit, comprises cabinet, is arranged at that inlet wire connecting system, outlet in cabinet picks out system and with the separable wire inlet unit vacuum circuit-breaker docking of inlet wire connecting system, pick out the separable some outgoing line unit vacuum circuit-breakers that dock of system with outlet.Wire inlet unit vacuum circuit-breaker is connected by main bus bar with some outgoing line unit vacuum circuit-breakers.Wire inlet unit vacuum circuit-breaker and some outgoing line unit vacuum circuit-breakers can be extracted out and be arranged in cabinet.Wire inlet unit vacuum circuit-breaker and some outgoing line unit vacuum circuit-breakers are that horizontal Tile is arranged and tile vertically is arranged.
Preferably, in described cabinet, be provided with sliding rail, on wire inlet unit vacuum circuit-breaker and some outgoing line unit vacuum circuit-breakers, be provided with pulley, these pulleys difference relative set are on sliding rail.
Preferably, wire inlet unit vacuum circuit-breaker and some outgoing line unit vacuum circuit-breakers are whole pull-out type.
Preferably, wire inlet unit vacuum circuit-breaker and some outgoing line unit vacuum circuit-breakers are that horizontal Tile is arranged and tile vertically is arranged.
Preferably, inlet wire connecting system is provided with inlet wire inserting column, and described wire inlet unit vacuum circuit-breaker is provided with inlet wire clamping interface, and described inlet wire inserting column and this inlet wire clamping interface are pegged graft; Described outlet picks out system and is provided with outlet inserting column, and described outgoing line unit vacuum circuit-breaker is provided with outlet clamping interface, and described outlet inserting column and this outlet clamping interface are pegged graft.
Preferably, outgoing line unit vacuum circuit-breaker is provided with earthed switch.
Preferably, described inlet wire connecting system comprises inlet wire plug cable end, inlet wire wall bushing, inlet wire lightning arrester, inlet wire current instrument transformer and inlet wire inserting column, described inlet wire plug cable end is inserted into inlet wire wall bushing outside, described inlet wire lightning arrester is inserted in inlet wire plug cable end rear side, described inlet wire current instrument transformer is sleeved on inlet wire wall bushing, and described inlet wire inserting column and inlet wire plug cable end forms and is connected and stretches out described inlet wire wall bushing.
Preferably, described outlet picks out system and comprises OIR cable end, outgoing line wall bushing, outlet lightning arrester, outlet current transformer and mountain line inserting column, describedly go out OIR cable end and be inserted into outgoing line wall bushing outside, described outlet lightning arrester is inserted in out OIR cable end rear side, described mountain line current instrument transformer is sleeved on line wall bushing, described outlet inserting column with go out OIR cable end and form and to be connected and to stretch out described outgoing line wall bushing.
Preferably, described cabinet is provided with barricade, described inlet wire connecting system, outlet pick out system and are positioned at barricade one side, described inlet wire inserting column, outlet inserting column pass barricade by wall bushing and are positioned at barricade opposite side, and described wire inlet unit vacuum circuit-breaker, some outgoing line unit vacuum circuit-breakers profit main bus bar are also positioned at barricade opposite side.
The utility model pull-out type air insulation ring main unit is by wire inlet unit vacuum circuit-breaker, outgoing line unit vacuum circuit-breaker respectively with inlet wire connecting system, outlet picks out system and realizes separable docking, wire inlet unit vacuum circuit-breaker is connected by main bus bar with some outgoing line unit vacuum circuit-breakers, wire inlet unit vacuum circuit-breaker and some outgoing line unit vacuum circuit-breakers can be extracted design out, both SF6 gas-insulated ring network cabinet Leakage Gas and blast problem had been solved, also solid insulation ring main unit product quality shakiness and the high shortcoming of cost have been solved, take up an area close with solid insulation ring main unit with SF6 gas-insulated ring network cabinet, easy to maintenance, and can be in severe cold, plateau, moist, normally operation under the adverse circumstances such as high wind sand.Unit horizontal arrangement and being arranged vertically combines, and makes whole ring main unit compact design, takes up an area and highly take up an area little, reaches optimum size.
Accompanying drawing explanation:
Fig. 1 is the front view of the utility model pull-out type air insulation ring main unit;
Fig. 2 is the left side view of the ring main unit of pull-out type air insulation shown in Fig. 1, for ease of checking, cabinet left part is concealed.
Embodiment
By describing technology contents of the present utility model, structural feature in detail, being realized object and effect, below in conjunction with execution mode and coordinate accompanying drawing to be explained in detail.
Refer to Fig. 1 and Fig. 2, the utility model pull-out type air insulation ring main unit comprises cabinet 10, be arranged at that inlet wire connecting system 20, outlet in cabinet 10 picks out system 30 and with the separable wire inlet unit vacuum circuit-breaker 40 docking of inlet wire connecting system 20, pick out the separable some outgoing line unit vacuum circuit-breakers 50 that dock of system 30 with outlet.
It is rectangular-shaped that cabinet 10 is roughly, and is provided with sliding rail 11 and 1 barricade 12 that is roughly vertical bending setting of 6 groups of levels in cabinet 10.Cabinet 10 tops are provided with panel board 13.
Inlet wire connecting system 20, outlet pick out system 30 and are positioned at barricade 12 1 sides, are positioned in the present embodiment barricade 12 left sides.
In the present embodiment, inlet wire connecting system 20 comprises inlet wire plug cable end 21, inlet wire wall bushing 22, inlet wire lightning arrester 23, inlet wire current instrument transformer 24 and inlet wire inserting column 25.Inlet wire plug cable end 21 is inserted into inlet wire wall bushing 22 outsides, inlet wire lightning arrester 23 is inserted in inlet wire plug cable end 21 rear sides, inlet wire current instrument transformer 24 is sleeved on inlet wire wall bushing 22, and inlet wire inserting column 25 and inlet wire plug cable end 21 forms and is connected and stretches out inlet wire wall bushing 22.Inlet wire inserting column 25 passes barricade 12 by wall bushing and is positioned at barricade 12 opposite sides (being right side in the present embodiment).
In the present embodiment, outlet picks out system 30 and comprises OIR cable end 31, outgoing line wall bushing 32, outlet lightning arrester 33, outlet current transformer 34 and outlet inserting column 35.Go out OIR cable end 31 and be inserted into outgoing line wall bushing 32 outsides, outlet lightning arrester 33 is inserted in out OIR cable end 31 rear sides, outlet current transformer 34 is sleeved on line wall bushing 32, outlet inserting column 35 with go out OIR cable end 31 and form and be connected and stretch out outgoing line wall bushing 32.Outlet inserting column 35 passes barricade 12 by wall bushing and is positioned at barricade 12 opposite sides (being right side in the present embodiment).
Wire inlet unit vacuum circuit-breaker 40 is connected by main bus bar 60 with some outgoing line unit vacuum circuit-breakers 50.Wire inlet unit vacuum circuit-breaker 40, some outgoing line unit vacuum circuit-breakers 50 and main bus bar 60 are also positioned at barricade opposite side (being right side in the present embodiment).
Wire inlet unit vacuum circuit-breaker 40 is provided with inlet wire clamping interface 41, and inlet wire inserting column 25 is pegged graft with this inlet wire clamping interface 41.Outgoing line unit vacuum circuit-breaker 50 is provided with outlet clamping interface 51, and outlet inserting column 35 is pegged graft with this outlet clamping interface 51.
Wire inlet unit vacuum circuit-breaker 40 and some outgoing line unit vacuum circuit-breakers 50 can be extracted out and be arranged in cabinet 10, particularly, on wire inlet unit vacuum circuit-breaker 40 and some outgoing line unit vacuum circuit-breakers 50, be provided with pulley 70, these pulleys 70 difference relative set are on sliding rail 11.Preferably, wire inlet unit vacuum circuit-breaker 40 and some outgoing line unit vacuum circuit-breakers 50 are whole pull-out type.
In the present embodiment, 1 wire inlet unit vacuum circuit-breaker 40 is horizontal Tile layout and the vertical layout that begins to rehearse with 5 outgoing line unit vacuum circuit-breakers 50, particularly, wire inlet unit vacuum circuit-breaker 40 is arranged in the upper left corner in cabinet 10,2 outgoing line unit vacuum circuit-breaker 50 horizontal Tiles are arranged in wire inlet unit vacuum circuit-breaker 40 right sides, and other 3 outgoing line unit vacuum circuit-breakers 50 respectively corresponding horizontal Tile layout are arranged in the below of above-mentioned 1 wire inlet unit vacuum circuit-breaker 40 and 2 outgoing line unit vacuum circuit-breakers 50 with vertical beginning to rehearse.
Further, the bus of the capacitor type insulating body that described main bus bar 60 packs for baffle external application organic insulation band, in the present embodiment, described main female silk 60 is U-shaped main bus bar, and main female silk 60 wherein one or two free end is provided with and the inlet wire clamping interface 41 of wire inlet unit vacuum circuit-breaker 40 or the inserting terminal 61 of pegging graft with the outlet clamping interface 51 of outgoing line unit vacuum circuit-breaker 50.
Further, outgoing line unit vacuum circuit-breaker 50 is provided with earthed switch 80.
The utility model pull-out type air insulation ring main unit is when work, and wire inlet unit vacuum circuit-breaker 40 pushes and puts in place, and the inlet wire inserting column of inlet wire connecting system 20 and main bus bar 60 are pegged graft, and main bus bar 60 is electrically connected with wire inlet unit vacuum circuit-breaker 40; Outgoing line unit vacuum circuit-breaker 50 pushes and puts in place, main bus bar 60 is electrically connected with outgoing line unit vacuum circuit-breaker 50, outgoing line unit vacuum circuit-breaker 50 is pegged graft with outlet inserting column 35, through outgoing line wall bushing 32 and outlet cable plug head 31, sends electric energy to outlet cable.
Wire inlet unit vacuum circuit-breaker 40 is extracted out and is put in place, and the inlet wire inserting column of inlet wire connecting system 20 and main bus bar 60 disconnect, and main bus bar 60 disconnects and being electrically connected with wire inlet unit vacuum circuit-breaker 40; Outgoing line unit vacuum circuit-breaker 50 is extracted out and is put in place, main bus bar 60 disconnects and being electrically connected with outgoing line unit vacuum circuit-breaker 50, outgoing line unit vacuum circuit-breaker 50 disconnects with outlet inserting column 35, and outlet earthed switch 80 is connected with outgoing line wall bushing 32 inner side outlet inserting columns, is grounded.In outgoing line unit vacuum circuit-breaker 50 push-on process, outlet earthed switch 80 is worn moisture in the soil sleeve pipe 32 inner conductor outlet inserting columns 35 with outlet and is departed from.
In the utility model pull-out type air insulation ring main unit, in 1 wire inlet unit vacuum circuit-breaker 40 and 5 outgoing line unit vacuum circuit-breakers 50, unit is all to adopt to cut-off by whole pull-out type vacuum circuit-breaker; no longer use on-load switch and fusible link; each unit standard configurations; this can improve ring main unit break performance and integrated protection performance, thereby improves the level of intelligence of ring main unit.Unit horizontal arrangement combines with being arranged vertically, and makes the occupation of land of whole ring main unit and highly reaches optimum size.Vacuum circuit-breaker and main bus bar and wall bushing adopt pegs graft, when circuit breaker breaks down, and whole extraction out, every phase is all separated from bus and wall bushing, has obvious breakpoint, realizes the function of isolating switch.Except wire inlet unit vacuum circuit-breaker 40, other unit all arrange earthed switch, after circuit breaker extraction puts in place, the earthing of earthed switch 80 is connected with the outlet inserting column 31 of outgoing line wall bushing 32 ends, be grounded, in pushing outgoing line unit vacuum circuit-breaker 50 processes, the earthing of earthed switch 80 is separated from the outlet inserting column 35 of outgoing line wall bushing 32.Outgoing line wall bushing 32 1 sides are connected with outgoing line unit vacuum circuit-breaker 50, and opposite side is connected with cable plug head 31, cable plug head 31 is all arranged in to the rear side of ring main unit.Main bus bar 60 is placed on the middle part of ring main unit, and main bus bar and each unit are easy to connect like this.
In sum, the utility model pull-out type air insulation ring main unit is by wire inlet unit vacuum circuit-breaker 40, outgoing line unit vacuum circuit-breaker 50 respectively with inlet wire connecting system 20, outlet picks out system 30 and realizes separable docking, wire inlet unit vacuum circuit-breaker 40 is connected by main bus bar 60 with some outgoing line unit vacuum circuit-breakers 50, wire inlet unit vacuum circuit-breaker 40 and some outgoing line unit vacuum circuit-breakers 50 can be extracted design out, both SF6 gas-insulated ring network cabinet Leakage Gas and blast problem had been solved, also solid insulation ring main unit product quality shakiness and the high shortcoming of cost have been solved, take up an area close with solid insulation ring main unit with SF6 gas-insulated ring network cabinet, easy to maintenance, and can be in severe cold, plateau, moist, normally operation under the adverse circumstances such as high wind sand.
The utility model is not limited to above-mentioned embodiment, and those skilled in the art also can make multiple variation accordingly, but any and the utility model are equal to or similar variation all should be encompassed in the scope of the utility model claim.
Claims (8)
1. a pull-out type air insulation ring main unit, comprise cabinet and be arranged at the inlet wire connecting system in cabinet, outlet picks out system, it is characterized in that: also comprise with the separable wire inlet unit vacuum circuit-breaker docking of inlet wire connecting system and with outlet and pick out the separable some outgoing line unit vacuum circuit-breakers that dock of system, described wire inlet unit vacuum circuit-breaker is connected by main bus bar with some outgoing line unit vacuum circuit-breakers, described wire inlet unit vacuum circuit-breaker and some outgoing line unit vacuum circuit-breakers can be extracted out and be arranged in described cabinet, described wire inlet unit vacuum circuit-breaker and some outgoing line unit vacuum circuit-breakers are that horizontal Tile is arranged and tile vertically is arranged.
2. pull-out type air insulation ring main unit according to claim 1, it is characterized in that: in described cabinet, be provided with sliding rail, on described wire inlet unit vacuum circuit-breaker and some outgoing line unit vacuum circuit-breakers, be provided with pulley, these pulleys difference relative set are on sliding rail.
3. pull-out type air insulation ring main unit according to claim 1 and 2, is characterized in that: described wire inlet unit vacuum circuit-breaker and some outgoing line unit vacuum circuit-breakers are whole pull-out type.
4. pull-out type air insulation ring main unit according to claim 3, it is characterized in that: described inlet wire connecting system is provided with inlet wire inserting column, described wire inlet unit vacuum circuit-breaker is provided with inlet wire clamping interface, and described inlet wire inserting column and this inlet wire clamping interface are pegged graft; Described outlet picks out system and is provided with outlet inserting column, and described outgoing line unit vacuum circuit-breaker is provided with outlet clamping interface, and described outlet inserting column and this outlet clamping interface are pegged graft.
5. pull-out type air insulation ring main unit according to claim 3, is characterized in that: described outgoing line unit vacuum circuit-breaker is provided with earthed switch.
6. pull-out type air insulation ring main unit according to claim 1, it is characterized in that: described inlet wire connecting system comprises inlet wire plug cable end, inlet wire wall bushing, inlet wire lightning arrester, inlet wire current instrument transformer and inlet wire inserting column, described inlet wire plug cable end is inserted into inlet wire wall bushing outside, described inlet wire lightning arrester is inserted in inlet wire plug cable end rear side, described inlet wire current instrument transformer is sleeved on inlet wire wall bushing, and described inlet wire inserting column and inlet wire plug cable end forms and is connected and stretches out described inlet wire wall bushing.
7. pull-out type air insulation ring main unit according to claim 1, it is characterized in that: described outlet picks out system and comprises OIR cable end, outgoing line wall bushing, outlet lightning arrester, outlet current transformer and outlet inserting column, describedly go out OIR cable end and be inserted into outgoing line wall bushing outside, described outlet lightning arrester is inserted in out OIR cable end rear side, described outlet current transformer is sleeved on line wall bushing, described mountain line inserting column with go out OIR cable end and form and to be connected and to stretch out described outgoing line wall bushing.
8. pull-out type air insulation ring main unit according to claim 1, it is characterized in that: described cabinet is provided with barricade, described inlet wire connecting system, outlet pick out system and are positioned at barricade one side, described inlet wire inserting column, outlet inserting column pass barricade by wall bushing and are positioned at barricade opposite side, and described wire inlet unit vacuum circuit-breaker, some outgoing line unit vacuum circuit-breakers and main bus bar are also positioned at barricade opposite side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320507291.4U CN203456783U (en) | 2013-08-12 | 2013-08-12 | Draw-out type air insulation ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320507291.4U CN203456783U (en) | 2013-08-12 | 2013-08-12 | Draw-out type air insulation ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203456783U true CN203456783U (en) | 2014-02-26 |
Family
ID=50136637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320507291.4U Expired - Fee Related CN203456783U (en) | 2013-08-12 | 2013-08-12 | Draw-out type air insulation ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203456783U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457195A (en) * | 2013-08-12 | 2013-12-18 | 天津沃尔法电力设备有限公司 | Draw-out type air insulation ring main unit |
-
2013
- 2013-08-12 CN CN201320507291.4U patent/CN203456783U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103457195A (en) * | 2013-08-12 | 2013-12-18 | 天津沃尔法电力设备有限公司 | Draw-out type air 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: 20140226 Termination date: 20200812 |
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| CF01 | Termination of patent right due to non-payment of annual fee |