CN106654966A - Environment-friendly gas-insulated ring main unit - Google Patents

Environment-friendly gas-insulated ring main unit Download PDF

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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
Authority
CN
China
Prior art keywords
fixed
insulating
isolation
gas
insulated ring
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.)
Pending
Application number
CN201710152947.8A
Other languages
Chinese (zh)
Inventor
兰桂刚
卓克勤
张志鹏
肖淑伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUANGDONG AERPAI ELECTRIC POWER TECHNOLOGY CO LTD
Original Assignee
GUANGDONG AERPAI ELECTRIC POWER TECHNOLOGY CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GUANGDONG AERPAI ELECTRIC POWER TECHNOLOGY CO LTD filed Critical GUANGDONG AERPAI ELECTRIC POWER TECHNOLOGY CO LTD
Priority to CN201710152947.8A priority Critical patent/CN106654966A/en
Publication of CN106654966A publication Critical patent/CN106654966A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035Gas-insulated switchgear
    • H02B13/0352Gas-insulated switchgear for three phase switchgear

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

Environmentally friendly gas-insulated ring network cabinet
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.
CN201710152947.8A 2017-03-15 2017-03-15 Environment-friendly gas-insulated ring main unit Pending CN106654966A (en)

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)

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Cited By (2)

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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 kind of tri-station isolating switch and Cubicle Gas-Insulated Switchgear gas tank
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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* Cited by examiner, † Cited by third party
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 kind of tri-station isolating switch and Cubicle Gas-Insulated Switchgear gas tank
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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