CN207705676U - The middle hermetically sealed dry air insulation ring main unit of pressure - Google Patents
The middle hermetically sealed dry air insulation ring main unit of pressure Download PDFInfo
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- CN207705676U CN207705676U CN201721508293.XU CN201721508293U CN207705676U CN 207705676 U CN207705676 U CN 207705676U CN 201721508293 U CN201721508293 U CN 201721508293U CN 207705676 U CN207705676 U CN 207705676U
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- cabinet
- ring main
- main unit
- hermetically sealed
- dry air
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Abstract
The utility model discloses the hermetically sealed dry air insulation ring main unit of middle pressure, electric panel room cabinet is hermetically sealed metal safe, and interior insulation medium is dry air, and air clearance meets 125mm between electrical body in electric panel room, electrical body spacing cannot achieve 125 position mm, then is equipped with insulating barrier；After using said program, the closed gas tank of the utility model does not have to the leakage for worrying stainless steel gas tank, prevents the entrance of moisture, the generation of condensation from promoting the ability of product environment resistant；The traditional SF6 inflatable ring network cabinet appearance and size of appearance and size is close, because SF6 has the insulation performance of 3 times of air, so with SF6 gas-filling cabinets space of the same size, remain to realize the electric property that equipment is all.
Description
Technical field
The utility model is related to a kind of middle voltage electrical equipment, refer in particular to a kind of ring main unit.
Background technology
In intermediate distribution system, due to light industry and utility development and the application of new energy electric power, looped network
Cabinet is widely used, from small-scale industrial user, school, hospital, charging pile, solar power generation, to residential quarters
And the public utilities of all types of small electricity consumption scales.
In the invention of ring main unit and application more than 50 year, there is the ring main unit of various types and structure, there is SF6 to inflate looped network
Cabinet, solid insulation ring main unit, compartment ring main unit.Wherein, for SF6 inflatable ring network cabinet due to technology maturation, appearance and size is compact, side
Case is complete, it is cheap the advantages that and be widely used, but due to SF6 gases system greenhouse gases, SF6 inflatable ring network cabinet by
In the sealing technology the problem of, there is always the accident of SF6 gases leakage, SF6 gases have considerable once a leak occurs, pollution environment
SF6 inflatable ring network cabinet carries out insulation and arc extinguishing, the leakage of SF6 by SF6 can cause the stoppage in transit of equipment to be overhauled.In this feelings
Under condition, there is solid insulation ring main unit again in the market, but solid insulation ring main unit the phenomenon that still there is environmental pollutions, moves back
The ring main unit for going out operation can not be recycled and be utilized because largely using epoxy resin.Simultaneously as solid insulation ring main unit,
The problem of insulating part surface electrostatic is accumulated, after running a period of time, insulating part disintegrates insulating part.If it is desired to insulating part is not accumulated
Electrostatic, need to do sandblasting on insulating part surface or spray the similar technique of semi-conductive layer, and it is inadequate at this moment to bring major loop creep distance again
The problem of, meanwhile, improve the overall cost of equipment.These reasons, all so that solid insulation ring main unit can not large-scale popularization.Between
Every formula ring main unit, using the cooperation of vacuum load switch and disconnecting switch or the tactic pattern of pressure-operated load switch, busbar
With branch bar by air insulation, the problem of environmental pollution and buildup of static electricity is not present, but because appearance and size is bigger than normal, and do not have
Metal sealing is easy to be influenced by environment such as moisture, condensations, is suitable only for using environment indoors and has linear quadratic control power supply
Environment is also subject to certain restrictions in application aspect.
Utility model content
The purpose of this utility model is to provide it is a kind of it is small, without using have pollution insulating gas middle pressure ring main unit.
To reach above-mentioned purpose, hermetically sealed dry air insulation ring main unit is pressed in the utility model, including operating mechanism room,
Electric panel room and cable bin, it is characterised in that：Operating mechanism room and electric panel room design successively along cabinet ring main unit longitudinal direction, operate machine
Top is vacuum arc extinguishing unit operating mechanism in structure room, and lower section is isolator operating mechanism, and electric panel room cabinet is hermetically sealed gold
Belong to cabinet, interior insulation medium is dry air, and the interior top of electric panel room cabinet is vacuum arc extinguishing unit, and three of them pole is along cabinet
Body longitudinal direction is set gradually, and tri-station isolating switch is located at below vacuum arc extinguishing unit；Air is net between electrical body in electric panel room
Away from meet be more than or equal to 125mm, when electrical body spacing cannot achieve more than or equal to 125mm, between electrical body be equipped with insulation every
Plate.
The ring main unit size is the wide 350mm of cabinet, and cabinet depth is 900mm, a height of 1400mm of cabinet.
The arc extinguishing unit is vacuum load switch.
The arc extinguishing unit is vacuum circuit breaker.
It is equipped with explosion-proof diaphragm in electric panel room bottom of cabinet bulk, pneumatics table is set on looped network cabinet panel.
After using said program, the closed gas tank of the utility model does not have to the leakage for worrying stainless steel gas tank, prevents moisture
Entrance, the generation of condensation, promoted product environment resistant ability；The traditional SF6 inflatable ring network cabinet appearance and size of appearance and size connects
Closely, because SF6 has the insulation performance of 3 times of air, thus with SF6 gas-filling cabinets space of the same size, remain to realize equipment institute
Some electric properties.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model.
Label declaration：
1. 6. operating mechanism of extension header 2. arc extinguishing unit, 3. tri-station isolating switch, 4. stainless steel gas tank, 5. babinet, 7. pneumatics
8. isolator operating mechanism of table, 9. cable sleeve.
Specific implementation mode
For the technology contents of the utility model, construction feature, the objects and the effects are described in detail, below in conjunction with implementation
Mode simultaneously coordinates attached drawing to be explained in detail.
Referring to Fig. 1, Fig. 1 is ring main unit side visual angle, right side is ring main unit oriented manipulation person's one side, is to the left ring main unit
Longitudinal direction.
The gas tank of different units may be implemented as shown in Figure 1, serial number 1 is top extension header in the structural schematic diagram of this structure
Busbar connects, and serial number 2 is that cut-off the pole of unit according to requirement of engineering can be vacuum load switch and vacuum to vacuum
Breaker, serial number 3 are the disconnecting switch of three stations, realize the function of connecting, be isolated and be grounded, have glass in the front of gas tank
Observation window, it is observed that the position of earthing switch, serial number 4 is stainless steel gas chamber, and serial number 5 is metal stainless steel babinet, serial number 6
For vacuum circuit breaker or the operating mechanism of vacuum load switch, serial number 7 is pneumatics table, can indicate whether gas tank air pressure is low, sequence
Numbers 8 be Three-Position Switch Operate Institutions, and 3 tri-station isolating switch of serial number passes through its operation, and the earthing switch of serial number 3 uses
Can have short-circuit making capability with the operating mechanism of energy storage, serial number 9 is cable sleeve, connects external inlet-outlet line cable, serial number 9
Lower space is cable bin, can place the components such as fault detector, current transformer.In the bottom of stainless steel gas tank, also
It is provided with explosion-proof diaphragm, when short trouble occurs in gas tank, the air pressure generated in gas tank can be by pressure by explosion-proof diaphragm
Release.
The utility model is a kind of novel all-inflation and all-insulation ring main unit, is applied in intermediate distribution system, complete with SF6
Inflatable ring main unit is the same, and all energized circuits are enclosed in stainless steel metal gas tank, the difference is that in closed gas tank, fills
Full is dry air rather than SF6 gases, the design of the live part in gas tank, be according to the compound inslation under pure air into
Row design, electrical body air clearance is almost 125mm, and the position that clear distance cannot achieve is blocked using insulating barrier, this
The purpose of design of sample does not have to the leakage for worrying stainless steel gas tank, the normal operation of equipment is not influenced, using metal stainless steel gas tank
Purpose primarily to prevent the entrance of moisture, the generation of condensation promotes the ability of product environment resistant.The utility model shape
Size is the wide 350mm of cabinet, and cabinet depth is 900mm, and a height of 1400mm of cabinet and traditional SF6 inflatable ring network cabinet appearance and size are close, because
SF6 has the insulation performance of 3 times of air, so in holding and SF6 gas-filling cabinets space of the same size, can realize that equipment is all
Electric property.The arc extinguishing unit of the utility model is embodied as vacuum extinction, can be vacuum load switch and vacuum circuit breaker,
It is the disconnecting switch of three stations below vacuum arc extinguishing unit.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent shapes made based on the specification and figures of the utility model or Structural Transformation, are applied directly or indirectly in other
Relevant technical field, is equally included in the patent within the scope of the utility model.
Claims (5)
- Hermetically sealed dry air insulation ring main unit, including operating mechanism room, electric panel room and cable bin are pressed in 1., it is characterised in that： Operating mechanism room and electric panel room design successively along cabinet ring main unit longitudinal direction, and top is that vacuum arc extinguishing unit is grasped in operating mechanism room Make mechanism, lower section is isolator operating mechanism, and electric panel room cabinet is hermetically sealed metal safe, and interior insulation medium is dry empty Gas, the interior top of electric panel room cabinet is vacuum arc extinguishing unit, and three of them pole is set gradually along cabinet longitudinal direction, three stations Disconnecting switch is located at below vacuum arc extinguishing unit；Air clearance meets and is more than or equal to 125mm between electrical body in electric panel room, is charging When body spacing be cannot achieve more than or equal to 125mm, insulating barrier is equipped between electrical body.
- 2. the hermetically sealed dry air insulation ring main unit of pressure in as described in claim 1, it is characterised in that：The ring main unit ruler Very little is the wide 350mm of cabinet, and cabinet depth is 900mm, a height of 1400mm of cabinet.
- 3. the hermetically sealed dry air insulation ring main unit of pressure in as described in claim 1, it is characterised in that：The arc extinguishing unit For vacuum load switch.
- 4. the hermetically sealed dry air insulation ring main unit of pressure in as described in claim 1, it is characterised in that：The arc extinguishing unit For vacuum circuit breaker.
- 5. the hermetically sealed dry air insulation ring main unit of pressure in as described in claim 1, it is characterised in that：Electric panel room bottom of cabinet bulk Equipped with explosion-proof diaphragm, pneumatics table is set on looped network cabinet panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721508293.XU CN207705676U (en) | 2017-11-13 | 2017-11-13 | The middle hermetically sealed dry air insulation ring main unit of pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721508293.XU CN207705676U (en) | 2017-11-13 | 2017-11-13 | The middle hermetically sealed dry air insulation ring main unit of pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207705676U true CN207705676U (en) | 2018-08-07 |
Family
ID=63022488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721508293.XU Active CN207705676U (en) | 2017-11-13 | 2017-11-13 | The middle hermetically sealed dry air insulation ring main unit of pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207705676U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244927A (en) * | 2018-10-08 | 2019-01-18 | 江苏南瑞泰事达电气有限公司 | A kind of SF6 all-insulated ring network cabinet of high-seal |
| CN114300999A (en) * | 2021-12-28 | 2022-04-08 | 江苏凯顺电气有限公司 | Medium-voltage full-sealed dry air insulation ring main unit |
-
2017
- 2017-11-13 CN CN201721508293.XU patent/CN207705676U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244927A (en) * | 2018-10-08 | 2019-01-18 | 江苏南瑞泰事达电气有限公司 | A kind of SF6 all-insulated ring network cabinet of high-seal |
| CN114300999A (en) * | 2021-12-28 | 2022-04-08 | 江苏凯顺电气有限公司 | Medium-voltage full-sealed dry air insulation ring main unit |
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