CN106654966A - Environment-friendly gas-insulated ring main unit - Google Patents
Environment-friendly gas-insulated ring main unit Download PDFInfo
- Publication number
- CN106654966A CN106654966A CN201710152947.8A CN201710152947A CN106654966A CN 106654966 A CN106654966 A CN 106654966A CN 201710152947 A CN201710152947 A CN 201710152947A CN 106654966 A CN106654966 A CN 106654966A
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- CN
- China
- Prior art keywords
- fixed
- insulating
- isolation
- gas
- insulated ring
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- 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.)
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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
- H02B13/0352—Gas-insulated switchgear for three phase switchgear
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses an environment-friendly gas-insulated ring main unit. The environment-friendly gas-insulated ring main unit comprises a cabinet body, a gas box, a wire-inlet sleeve, a bus box, a main busbar, a three-phase high-voltage vacuum switch, a flexible flat cable, a wire-outlet sleeve, a supporting busbar, a circuit breaking driving mechanism and an isolation driving mechanism, wherein the three-phase high-voltage vacuum switch comprises an insulating cover, a vacuum arc extinguish chamber, a circuit breaking main shaft, a guiding connector, a pull rod assembly, an isolation contact, an insulating seat, a conductive seat, a three-station swing arm, an isolation blade and a grounding contact; the insulating cover is fixed on the inner side of the gas box; the vacuum arc extinguish chamber is fixed in the insulating cover; the circuit breaking main shaft is pivoted on the inner side of the gas box; the lower end of the guiding connector is fixed at the upper end of the vacuum arc extinguish chamber; the pull rod assembly is in transmission connection between the upper end of the guiding connector and the circuit breaking main shaft; the isolation contact is electrically with the lower end of the vacuum arc extinguish chamber; the conductive seat is fixed on the insulating seat; the three-station swing arm is pivoted in the gas box; the isolation blade is fixed on the three-station swing arm and electrically connected with the conductive seat; and the grounding contact is fixed on the inner side of the gas box.
Description
Technical field
The present invention relates to the technical field of the insulated switching installation of power system, more particularly to a kind of environmentally friendly gas-insulated ring
Net cabinet.
Background technology
Ring main unit（Ring Main Unit）It is one group of transmission ＆ distribution electrical equipment（High-tension switch gear）It is mounted in metal or non-gold
Category insulation cabinet body is interior or makes the electrical equipment of assembled compartment ring network power supplying units, and its core is using on-load switch and melts
Disconnected device, has the advantages that power supply parameter and performance and power supply safety can be improved.It is widely used in Urban Residential District, height
In the power distribution station and box-type substation of the load centers such as layer building, large public building, factory and enterprise.
But, in existing technology, it is high to there is complex structure, production cost in the three-phase high-voltage vacuum switch in ring main unit
Shortcoming, be very easy to break down during its use, cause security incident, and maintenance cost is high.
Therefore, it is badly in need of wanting a kind of environmentally friendly gas-insulated ring network cabinet to overcome above-mentioned problem.
The content of the invention
It is an object of the invention to provide a kind of environmentally friendly gas-insulated ring network cabinet, the environmentally friendly gas-insulated ring network cabinet has to be tied
Structure is simple, safe, low production cost, be less prone to the low advantage of failure and maintenance cost during use.
For achieving the above object, the invention provides a kind of environmentally friendly gas-insulated ring network cabinet, including：Cabinet；In closed knot
The gas tank of structure, the gas tank is on the cabinet；Entrance bushing, the entrance bushing is fixed in the horizontal direction the gas tank
Upside；Bus box, the bus box is fixed on the inner side of the gas tank, and the bus box and the entrance bushing are in phase
To arrangement；Main busbar, the main busbar is electrically connected between the entrance bushing and the bus box；Three-phase high-voltage vacuum
Switch, the three-phase high-voltage vacuum switch comprising insulating boot, vacuum interrupter, breaking main shaft, be oriented to joint, rod assembly, every
From contact, insulating base, conductive seat, three station swing arms, isolation blade and grounding contact, the insulating boot is fixed on the gas tank
On inner side, the vacuum interrupter is fixed in the insulating boot, and the breaking main shaft is articulated on the inner side of the gas tank, institute
The upper end of the vacuum interrupter is fixed in the lower end for stating guiding joint, and the rod assembly is connected in the guiding joint
Upper end and the breaking main shaft between, the insulating contact is fixed on the lower end of the insulating boot, and insulating contact electricity
Property is connected to the lower end of the vacuum interrupter, and the insulating base is fixed on the inner side of the gas tank, and the conductive seat is fixed
On the insulating base, the three stations swing arm is articulated in the gas tank, and the isolation blade is fixed on the three stations pendulum
On arm, and the isolation blade is electrically connected on the conductive seat, and the grounding contact is fixed on the inner side of the gas tank,
The isolation blade has one to contact at connect station, a ground connection work for contacting at the grounding contact on the insulating contact
Position and the intermediate stations between the insulating contact and the grounding contact spaced apart；Flexible cord is arranged, the flexible cord row
It is electrically connected between the upper end of the bus box and the vacuum interrupter；Outlet casing tube, the outlet casing tube is along vertically side
To the bottom for being fixed on the gas tank；Busbar, described busbar be electrically connected at the conductive seat with it is described occur sleeve pipe it
Between；Breaking drive mechanism, on the cabinet, the breaking drive mechanism is connected in described the breaking drive mechanism
On breaking main shaft, the breaking drive mechanism orders about the breaking main axis to drive the rod assembly to draw the guiding
Joint is moved up and down；And isolation drive mechanism, on the cabinet, the isolation drive mechanism passes for the isolation drive mechanism
Dynamic to be connected in the three stations swing arm, the isolation drive mechanism orders about the three stations swing arm and rotates to drive the isolation
Blade switches on the connection station, intermediate stations and is grounded between station.
It is preferred that the rod assembly help pull a cart comprising insulation, elastic component, active pull rod and steady brace, it is described fixed to draw
The lower end insulated and help pull a cart is fixed in the upper end of bar, and the lower slide of the active pull rod is located at interior, the institute that helps pull a cart of insulating
State elastic component and be connected to the active pull rod and between the insulation is helped pull a cart, and the elastic component perseverance orders about the active pull rod court
It is away from the direction movement of the steady brace.
It is preferred that the breaking main shaft is extended radially outward and is formed with actuating arm.
It is preferred that the actuating arm is articulated in the lower end of the steady brace.
It is preferred that the rod assembly also includes connecting lever, the connecting lever is articulated on the insulating boot, the one of the connecting lever
End is articulated in the guiding joint, and the other end of the connecting lever is articulated in the upper end of the active pull rod.
It is preferred that the three-phase high-voltage vacuum switch also includes auxiliary positioning piece, the auxiliary positioning piece is fixed on described
The top of insulating boot.
It is preferred that the guiding joint activity is through the auxiliary positioning piece.
It is preferred that the three-phase high-voltage vacuum switch also includes silicon insulation sleeve, the silicon insulation sleeve fixed cover is located at described
On the outer wall of vacuum interrupter.
It is preferred that being formed with some reinforcements in the three stations swing arm.
It is preferred that being formed with the C-shaped grooves being arranged in a vertical direction on the insulating boot, the vacuum interrupter is located at institute
State in C-shaped grooves.
Description of the drawings
Fig. 1 is the combination schematic perspective view of the environmentally friendly gas-insulated ring network cabinet of the present invention.
Fig. 2 is gas tank, entrance bushing, bus box, main busbar, the three-phase high-voltage of the environmentally friendly gas-insulated ring network cabinet of the present invention
The combination schematic perspective view of vacuum switch, flexible cord row, outlet casing tube and a busbar.
Fig. 3 is that Fig. 2 removes the combination schematic perspective view after the gas tank wall of part.
Fig. 4 is Fig. 2 front views.
Fig. 5 is the sectional view of the line A-A along Fig. 4.
Specific embodiment
With reference now to Description of Drawings embodiments of the invention, the element numbers being similar in accompanying drawing represent similar element.
Fig. 1 to Fig. 5 is referred to, the environmentally friendly gas-insulated ring network cabinet 100 of the present invention includes cabinet 10, the gas in closed structure
Case 20, entrance bushing 30a, bus box 30b, main busbar（Do not show in figure）, three-phase high-voltage vacuum switch 40, flexible cord row（In figure not
Show）, outlet casing tube 30c, busbar（Do not show in figure）, breaking drive mechanism 40 and isolation drive mechanism 50, gas tank 20 is located at cabinet
On body 10, entrance bushing 30a is fixed in the horizontal direction the upside of gas tank 20；Bus box 30b is fixed on the inner side of gas tank 20,
And bus box 30b and entrance bushing 30a are in relative arrangement, main busbar be electrically connected at entrance bushing 30a and bus box 30b it
Between, realize the electric connection of entrance bushing 30a and bus box 30b, simple structure, safety.Three-phase high-voltage vacuum switch 40 is included
Insulating boot 41, vacuum interrupter 42a, breaking main shaft 43, guiding joint 42b, rod assembly 44, insulating contact 42c, insulating base
45a, conductive seat 45b, three station swing arms 46, isolation blade 47 and grounding contact 48, insulating boot 41 is fixed on the inner side of gas tank 20
On, vacuum interrupter 42a is fixed in insulating boot 41, and specifically, vacuum interrupter 42a is made up of insulating materials, not only
Realize the fixed installation of vacuum interrupter 42a, and insulating boot 41 ensure that vacuum interrupter 42a it is alternate and over the ground between
Insulating capacity.Breaking main shaft 43 is articulated on the inner side of gas tank 20, and vacuum interrupter 42a is fixed in the lower end for being oriented to joint 42b
Upper end, rod assembly 44 is connected in being oriented between the upper end of joint 42b and breaking main shaft 43, you can realize by open circuit
Main shaft 43 orders about the traction guiding joint 42b of rod assembly 44 and moves up and down, and loop current is cut-off in realization.Insulating contact 42c is fixed
In the lower end of insulating boot 41, and insulating contact 42c is electrically connected at the lower end of vacuum interrupter 42a, and insulating base 45a is fixed on gas
On the inner side of case 20, conductive seat 45b is fixed on insulating base 45a, and three station swing arms 46 are articulated in gas tank 20, isolates blade 47
It is fixed in three station swing arms 46, and isolates blade 47 and be electrically connected on conductive seat 45b, grounding contact 48 is fixed on gas tank 20
Inner side on, isolate blade 47 and have one to contact at connecting station, contacting at connecing for grounding contact 48 on insulating contact 42c
Ground station and the intermediate stations between insulating contact 42c and grounding contact 48 spaced apart so that three-phase high-voltage vacuum
The structure more advantages of simple of switch 40.Flexible cord row is electrically connected between the upper end of bus box 30b and vacuum interrupter 42a,
Outlet casing tube 30c is vertically fixed on the bottom of gas tank 20, busbar be electrically connected at conductive seat 45b with occur sleeve pipe it
Between；On cabinet 10, breaking drive mechanism 40 is connected on breaking main shaft 43 breaking drive mechanism 40, breaking driving machine
Structure 40 orders about breaking main shaft 43 and rotates to drive the traction guiding joint 42b of rod assembly 44 to move up and down；Isolation drive mechanism 50
On cabinet 10, isolation drive mechanism 50 is connected in three station swing arms 46, and isolation drive mechanism 50 orders about three stations
Swing arm 46 rotates to drive isolation blade 47 to switch between connection station, intermediate stations and ground connection station, realizes isolation blade
47 close a floodgate, the switching between disjunction and ground connection so that the mounting structure of isolation blade 47 is simple and station flexibly switches, structure peace
It is complete reasonable.Structure is more simple, substantially increases security, reduces being less prone to failure during production cost, and use,
Security incident is avoided the occurrence of, security is substantially increased, and greatly reduces maintenance cost, substantially prolongs service life.
Specifically, it is as follows：
Refer to Fig. 3 and Fig. 5, rod assembly 44 is helped pull a cart 441, elastic component 442, active pull rod 443 and steady brace comprising insulation
444, the upper end of steady brace 444 be fixed on insulation help pull a cart 441 lower end, the lower slide of active pull rod 443 draws located at insulation
In set 441, elastic component 442 is connected to active pull rod 443 and insulation is helped pull a cart between 441, and the perseverance of elastic component 442 orders about active pull rod
443 towards the direction movement for being away from steady brace 444.Helped pull a cart by insulation and 441 play a part of insulation, structure is safer can
Lean on.Wherein, elastic component 442 is preferably spring, and spring is built in insulation and helps pull a cart 441, and elastic component 442 provides combined floodgate when closing a floodgate and connects
Touch pressure.
Wherein, breaking main shaft 43 is extended radially outward and is formed with actuating arm 431, and actuating arm 431 is articulated in steady brace
444 lower end, it is simple and reasonable so as to draw the start of steady brace 444 by actuating arm 431.Rod assembly 44 is also wrapped
Containing connecting lever 445, connecting lever 445 is articulated on insulating boot 41, and one end of connecting lever 445 is articulated in guiding joint 42b, connecting lever 445 it is another
One end is articulated in the upper end of active pull rod 443, and driving structure is more simple.
Compared with the superior, in the present embodiment, three-phase high-voltage vacuum switch 40 also includes auxiliary positioning piece 42d, auxiliary positioning piece
42d is fixed on the top of insulating boot 41, joint 42b activities is oriented to through auxiliary positioning piece 42d, by auxiliary positioning piece 42d
To ensure to be oriented to the linear motion of joint 42b.
Compared with the superior, in the present embodiment, three-phase high-voltage vacuum switch 40 also includes silicon insulation sleeve 42c, and silicon insulation sleeve 42c consolidates
Surely it is sheathed on the outer wall of vacuum interrupter 42a, specifically, silicon insulation sleeve 42c closely glues with vacuum interrupter 42a outer surfaces
Close, for vacuum interrupter 42a external insulations, by the insulating effect of silicon insulation sleeve 42c, increase vacuum interrupter 42a moved ends with
Creep age distance between static side.
Compared with the superior, in the present embodiment, some reinforcements 461 are formed with three station swing arms 46 so that the structure of swing arm
It is more solid and reliable.
Compared with the superior, in the present embodiment, the C-shaped grooves 411 being arranged in a vertical direction are formed with insulating boot 41, vacuum is gone out
Arc chamber 42a be located at C-shaped grooves 411 in, its c-type partly enclose shape ensure it is alternate and over the ground between insulating capacity, structure is more
It is safe and reliable.
It should be noted that breaking drive mechanism 40 and isolation drive mechanism 50 are using well known to those skilled in the art
Technological means, i.e. the concrete structure of its breaking drive mechanism 40 and isolation drive mechanism 50 is ripe for those skilled in the art
Know, therefore, this is no longer going to repeat them.
Furthermore, the environmentally friendly insulating gas of filling is nitrogen in gas tank 20, to replace the insulation of traditional filling pernicious gas
Mode, safer environmental protection.
With reference to accompanying drawing, the operation principle of the environmentally friendly gas-insulated ring network cabinet 100 of the present invention is elaborated：Wherein, lead to
Cross breaking drive mechanism 40 to order about the rotation of breaking main shaft 43 to drive the traction guiding joint 42b of rod assembly 44 to move up and down, it is real
The arc extinguishing start of existing vacuum interrupter 42a.Furthermore, by isolation drive mechanism 50 order about three station swing arm 46 rotate drive every
Switch between connection station, intermediate stations and ground connection station from blade 47, existed according to use demand with ordering about isolation blade 47
Switching between combined floodgate, disjunction and ground connection.
Compared with prior art, because the entrance bushing 30a of environmentally friendly gas-insulated ring network cabinet 100 of the invention is along level side
To the upside for being fixed on gas tank 20；Bus box 30b is fixed on the inner side of gas tank 20, and bus box 30b and entrance bushing 30a is in
Relative arrangement, main busbar is electrically connected between entrance bushing 30a and bus box 30b；Three-phase high-voltage vacuum switch 40 is included
Insulating boot 41, vacuum interrupter 42a, breaking main shaft 43, guiding joint 42b, rod assembly 44, insulating contact 42c, insulating base
45a, conductive seat 45b, three station swing arms 46, isolation blade 47 and grounding contact 48, insulating boot 41 is fixed on the inner side of gas tank 20
On, vacuum interrupter 42a is fixed in insulating boot 41, and breaking main shaft 43 is articulated on the inner side of gas tank 20, is oriented to joint 42b's
The upper end of vacuum interrupter 42a is fixed in lower end, and rod assembly 44 is connected in the upper end and breaking main shaft that are oriented to joint 42b
Between 43, insulating contact 42c is fixed on the lower end of insulating boot 41, and insulating contact 42c is electrically connected at vacuum interrupter 42a's
Lower end, insulating base 45a is fixed on the inner side of gas tank 20, and conductive seat 45b is fixed on insulating base 45a, the pivot of three station swing arm 46
It is connected in gas tank 20, isolation blade 47 is fixed in three station swing arms 46, and isolates blade 47 and is electrically connected at conductive seat 45b
On, grounding contact 48 is fixed on the inner side of gas tank 20, is isolated blade 47 and is had one to contact at the connection work on insulating contact 42c
Position, one contact at grounding contact 48 ground connection station and one be spaced apart between insulating contact 42c and grounding contact 48
Intermediate stations so that the structure of three-phase high-voltage vacuum switch 40 more advantages of simple.Flexible cord row be electrically connected at bus box 30b with
Between the upper end of vacuum interrupter 42a, outlet casing tube 30c is vertically fixed on the bottom of gas tank 20, and a busbar electrically connects
It is connected to conductive seat 45b and occurs between sleeve pipe；On cabinet 10, breaking drive mechanism 40 is connected breaking drive mechanism 40
On breaking main shaft 43, breaking drive mechanism 40 is ordered about breaking main shaft 43 and rotates to drive the traction of rod assembly 44 to be oriented to joint
42b is moved up and down；On cabinet 10, isolation drive mechanism 50 is connected in three station swing arms 46 for isolation drive mechanism 50
On, isolation drive mechanism 50 orders about three station swing arm 46 and rotates to drive isolation blade 47 to switch on connection station, intermediate stations
And between ground connection station.Structure is more simple, substantially increases security, reduces being difficult during production cost, and use
Break down, it is to avoid security incident occur, substantially increase security, and greatly reduce maintenance cost, substantially prolongs
Service life.
Above disclosed is only the preferred embodiments of the present invention, can not limit the right of the present invention with this certainly
Scope, therefore the equivalent variations made according to scope of the present invention patent, still belong to the scope that the present invention is covered.
Claims (10)
1. a kind of environmentally friendly gas-insulated ring network cabinet, it is characterised in that include：Cabinet；Gas tank in closed structure, the gas tank sets
On the cabinet；Entrance bushing, the entrance bushing is fixed in the horizontal direction the upside of the gas tank；Bus box, it is described
Bus box is fixed on the inner side of the gas tank, and the bus box is in relative arrangement with the entrance bushing；Main busbar, institute
State main busbar to be electrically connected between the entrance bushing and the bus box；Three-phase high-voltage vacuum switch, the three-phase high-voltage
Vacuum switch includes insulating boot, vacuum interrupter, breaking main shaft, guiding joint, rod assembly, insulating contact, insulating base, conduction
Seat, three station swing arms, isolation blade and grounding contact, the insulating boot is fixed on the inner side of the gas tank, and the vacuum is gone out
Arc chamber is fixed in the insulating boot, and the breaking main shaft is articulated on the inner side of the gas tank, the lower end for being oriented to joint
The upper end of the vacuum interrupter is fixed on, the rod assembly is connected in the upper end of the guiding joint and the open circuit
Between main shaft, the insulating contact is fixed on the lower end of the insulating boot, and the insulating contact is electrically connected at the vacuum
The lower end of arc-chutes, the insulating base is fixed on the inner side of the gas tank, and the conductive seat is fixed on the insulating base, institute
State three station swing arms to be articulated in the gas tank, the isolation blade is fixed in the three stations swing arm, and the isolation knife
Piece is electrically connected on the conductive seat, and the grounding contact is fixed on the inner side of the gas tank, and the isolation blade has
One contacts at connecting station, contacting at ground connection station and a position spaced apart of the grounding contact on the insulating contact
Intermediate stations between the insulating contact and the grounding contact；Flexible cord is arranged, and the flexible cord row is electrically connected at the mother
Between the upper end of line box and the vacuum interrupter；Outlet casing tube, the outlet casing tube is vertically fixed on the gas tank
Bottom；Busbar, described busbar is electrically connected at the conductive seat and described occurs between sleeve pipe；Breaking drive mechanism,
The breaking drive mechanism is on the cabinet, and the breaking drive mechanism is connected on the breaking main shaft, described
Breaking drive mechanism orders about the breaking main axis to drive the rod assembly traction guiding joint to move up and down；And
Isolation drive mechanism, on the cabinet, the isolation drive mechanism driving is connected to described three for the isolation drive mechanism
In station swing arm, the isolation drive mechanism orders about the three stations swing arm and rotates described to drive the isolation blade to switch on
Connect between station, intermediate stations and ground connection station.
2. environmental protection gas-insulated ring network cabinet as claimed in claim 1, it is characterised in that the rod assembly draws comprising insulation
The lower end insulated and help pull a cart is fixed in set, elastic component, active pull rod and steady brace, the upper end of the steady brace, described
The lower slide of active pull rod located at it is described insulation help pull a cart in, the elastic component be connected to the active pull rod with it is described insulation draw
Between set, and the elastic component perseverance orders about the active pull rod towards the direction movement for being away from the steady brace.
3. environmental protection gas-insulated ring network cabinet as claimed in claim 2, it is characterised in that the breaking main shaft radially prolongs
Stretch and be formed with actuating arm.
4. environmental protection gas-insulated ring network cabinet as claimed in claim 3, it is characterised in that the actuating arm is articulated in the fixation
The lower end of pull bar.
5. the environmentally friendly gas-insulated ring network cabinet as described in any one of claim 2 to 4, it is characterised in that the rod assembly is also
Comprising connecting lever, the connecting lever is articulated on the insulating boot, and one end of the connecting lever is articulated in the guiding joint, the connecting lever
The other end be articulated in the upper end of the active pull rod.
6. environmental protection gas-insulated ring network cabinet as claimed in claim 1, it is characterised in that the three-phase high-voltage vacuum switch is also wrapped
Piece containing auxiliary positioning, the auxiliary positioning piece is fixed on the top of the insulating boot.
7. environmental protection gas-insulated ring network cabinet as claimed in claim 6, it is characterised in that the guiding joint activity is through institute
State auxiliary positioning piece.
8. environmental protection gas-insulated ring network cabinet as claimed in claim 1, it is characterised in that the three-phase high-voltage vacuum switch is also wrapped
Siliceous insulation sleeve, the silicon insulation sleeve fixed cover is on the outer wall of the vacuum interrupter.
9. environmental protection gas-insulated ring network cabinet as claimed in claim 1, it is characterised in that if being formed with the three stations swing arm
Dry reinforcement.
10. environmental protection gas-insulated ring network cabinet as claimed in claim 1, it is characterised in that be formed with the insulating boot along perpendicular
, to the C-shaped grooves of arrangement, the vacuum interrupter is in the C-shaped grooves for Nogata.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710152947.8A CN106654966A (en) | 2017-03-15 | 2017-03-15 | Environment-friendly gas-insulated ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710152947.8A CN106654966A (en) | 2017-03-15 | 2017-03-15 | Environment-friendly gas-insulated ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106654966A true CN106654966A (en) | 2017-05-10 |
Family
ID=58847456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710152947.8A Pending CN106654966A (en) | 2017-03-15 | 2017-03-15 | Environment-friendly gas-insulated ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106654966A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109962427A (en) * | 2019-04-25 | 2019-07-02 | 上海巴佩开关设备有限公司 | A three-position isolating switch and gas-insulated metal-enclosed switchgear gas box |
| CN114284926A (en) * | 2021-12-27 | 2022-04-05 | 亨斯迈(杭州)电力技术有限公司 | Atmospheric air insulation switch equipment |
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| CN105071277A (en) * | 2015-07-31 | 2015-11-18 | 益和电气集团股份有限公司 | Environment-friendly inflatable ring main unit |
| CN105490199A (en) * | 2016-01-21 | 2016-04-13 | 上海攀森电气设备有限公司 | Drawer type air insulated ring network cabinet |
| CN105655912A (en) * | 2016-03-11 | 2016-06-08 | 中天电气技术有限公司 | Environment-friendly gas insulation switch cabinet |
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|---|---|---|---|---|
| CN109962427A (en) * | 2019-04-25 | 2019-07-02 | 上海巴佩开关设备有限公司 | A three-position isolating switch and gas-insulated metal-enclosed switchgear gas box |
| CN114284926A (en) * | 2021-12-27 | 2022-04-05 | 亨斯迈(杭州)电力技术有限公司 | Atmospheric air insulation switch equipment |
| CN114284926B (en) * | 2021-12-27 | 2023-12-15 | 亨斯迈(杭州)电力技术有限公司 | Atmospheric air insulation switch equipment |
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Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |