CN108390304A - Environment-friendly type air insulation ring main unit - Google Patents

Environment-friendly type air insulation ring main unit Download PDF

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Publication number
CN108390304A
CN108390304A CN201810245924.6A CN201810245924A CN108390304A CN 108390304 A CN108390304 A CN 108390304A CN 201810245924 A CN201810245924 A CN 201810245924A CN 108390304 A CN108390304 A CN 108390304A
Authority
CN
China
Prior art keywords
leadscrew
main unit
environment
ring main
nut mechanism
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.)
Granted
Application number
CN201810245924.6A
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Chinese (zh)
Other versions
CN108390304B (en
Inventor
王蓉晖
肖谢科
蔡小波
周斌
陈康
游波
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.)
Huaxiang Xiangneng Technology Co Ltd
Original Assignee
Huaxiang Xiangneng Electric 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 Huaxiang Xiangneng Electric Co Ltd filed Critical Huaxiang Xiangneng Electric Co Ltd
Priority to CN201810245924.6A priority Critical patent/CN108390304B/en
Publication of CN108390304A publication Critical patent/CN108390304A/en
Application granted granted Critical
Publication of CN108390304B publication Critical patent/CN108390304B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H02B13/045Details of casing, e.g. gas tightness

Abstract

The present invention discloses a kind of environment-friendly type air insulation ring main unit, and environment-friendly type air insulation ring main unit controls cut-offfing for vacuum circuit breaker by the first leadscrew-nut mechanism, is connected respectively with the first leadscrew-nut mechanism by first motor, controller, realization automatically controls;First rotational handle ensures that manually controllable vacuum circuit breaker is cut-off in the case of control circuit failure or power-off.Second leadscrew-nut mechanism control plug-in type disconnecting switch is cut-off or is grounded, and the second motor, controller are connected with the second leadscrew-nut mechanism respectively, and realization automatically controls;Second rotational handle ensures that manually controllable plug-in type disconnecting switch is cut-off or is grounded in the case of control circuit failure or power-off.Environment-friendly type air insulation looped network cabinet proposed by the present invention is simple, and control is reliable and precision is high, while replacing SF6 as insulating gas using dry air, and environment-protecting clean effectively reduces the discharge of greenhouse gases.

Description

Environment-friendly type air insulation ring main unit
Technical field
The present invention relates to electric switch technical fields, and in particular to a kind of environment-friendly type air insulation ring main unit.
Background technology
In the existing power supply network system in China, to improve power supply reliability, usually power supply network connection is circularized, is used Family can obtain power supply from both direction, and this power supply mode is referred to as ring network power supply.Ring main unit in ring network power supply equipment is Core switching equipment, the ring main unit can be divided into air type ring main unit, SF6 gas-insulated rings again according to the different of dielectric Net cabinet, solid insulation ring main unit etc..Existing gas-insulated ring network cabinet mainly uses SF6 gases, since SF6 is anti-in 1997 Greenhouse gases are only designated as in the meeting of global warming capital of a country and limiting emission, to expect opening without using SF6 gases Close the birth of cabinet.High voltage, large capacity environmentally friendly gas-insulated ring network cabinet technically, economically occupy prodigious advantage, Demand of the market to filling the Inflatable ring main unit of SF6 is caused to successively decrease year by year, it will instead of the environment-friendly type ring main unit of SF6 inflatable ring network cabinet As the mainstream in market, and gradually replace SF6 inflatable ring network cabinet.At present using SF6 gases as the gas of insulation and arc-extinguishing medium Insulate ring main unit, and model is numerous, complicated, poor reliability, and there are security risk, cable installation and maintenance are inconvenient;Simultaneously SF6 gases belong to greenhouse gases, not environmentally.
Invention content
The main object of the present invention is to provide a kind of environment-friendly type air insulation ring main unit, it is intended to solve existing with SF6 gases Gas-insulated ring network cabinet as insulation and arc-extinguishing medium is complicated, poor reliability;SF6 gases belong to greenhouse gases simultaneously, Not environmentally the problem of.
To achieve the above object, a kind of environment-friendly type air insulation ring main unit proposed by the present invention comprising ring main unit ontology, First motor, the second motor, controller, the first leadscrew-nut mechanism, the second leadscrew-nut mechanism, vacuum circuit breaker, first connect Fishplate bar, the second connecting plate, plug-in type disconnecting switch, cable access system, cable pick out system, conductive rod, the first rotational handle With the second rotational handle;The ring main unit ontology includes control room, air insulation room, cable vault and discouraged room;The air is exhausted Marginal cell and the control room are set to the opposite sides above the ring main unit ontology, the discouraged room and cable vault setting Opposite sides below the ring main unit ontology, and the air insulation room and the discouraged room are located at the same side;The electricity The cable access system is provided in cable room;The vacuum circuit breaker, first leadscrew-nut mechanism, second leading screw Nut body and the plug-in type disconnecting switch are set in the air insulation room;The vacuum circuit breaker include dynamic connector and Quiet connector, the dynamic connector pick out system with the cable and are connected;One end of the dynamic connector and first connecting plate is fixed Connection, the other end is fastened by bolts with the nut of first leadscrew-nut mechanism to be connected;The first motor is arranged in institute It states in control room, and is respectively connected with the leading screw of first leadscrew-nut mechanism, the controller;The plug-in type is kept apart The switch column for including switch base and being inserted into the switch base is closed, the switch base is provided with ground connection, disconnection, connects three stations, The conductive rod is connected with the connection station;The switch column is connected with the quiet connector, and the switch base connects by second Fishplate bar is connected with the nut of second leadscrew-nut mechanism;Second motor is arranged in the control room, and with it is described The leading screw of second leadscrew-nut mechanism, the controller are respectively connected with;The conductive rod is connected with the cable access system;Institute It states the first rotational handle with the leading screw of first leadscrew-nut mechanism to be connected, second rotational handle and second leading screw The leading screw of nut body is connected;It is filled with dry air in the air insulation room.
Preferably, the environment-friendly type air insulation ring main unit includes the first ceramic shaft coupling and the second ceramic shaft coupling, institute It states first motor with the leading screw of first leadscrew-nut mechanism to be connected by the first ceramic shaft coupling, second motor and institute The leading screw for stating the second leadscrew-nut mechanism is connected by the second ceramic shaft coupling.
Preferably, the one end of the switch column far from the quiet connector is provided with ball, and the switch base is tubular, The switch base is disposed with three ground connection, off and on stations from nozzle into cylinder;It is provided on each station To protrusion, the protrusion is connected with the side wall of the switch base by spring, and the protruding apex is the circular shape of indent; The ball is inserted into the circular cavity, is connected with the corresponding station.
Preferably, the environment-friendly type air insulation ring main unit includes three display lamps, and the display lamp is arranged in the control System is indoor, and the display lamp is connected with three station one-to-one correspondence.
Preferably, first leadscrew-nut mechanism is equal with the air insulation room, the control room connection respectively It is provided with sealing ring;Second leadscrew-nut mechanism is all provided with the air insulation room, the control room connection respectively It is equipped with sealing ring.
Preferably, it is provided with relief valve on the partition board between the air insulation room and the discouraged room.
Preferably, the cable access system includes into wire insertion end, inlet wire wall bushing and inlet wire inserting column;Institute It states and is inserted on the outside of inlet wire wall bushing into wire insertion end, the inlet wire inserting column forms connection simultaneously with into wire insertion end The inlet wire wall bushing is stretched out, the inlet wire inserting column is connected with the conductive rod.
Preferably, it includes wire insertion end, outgoing line wall bushing and outlet inserting column, institute that the cable, which picks out system, It states out wire insertion end to be inserted on the outside of outgoing line wall bushing, the outlet inserting column forms connection simultaneously with wire insertion end is gone out The outgoing line wall bushing is stretched out, the outlet inserting column is connected with the dynamic connector.
Preferably, the conductive rod is copper rod.
Preferably, drier is placed in the air insulation room.
In technical scheme of the present invention, vacuum circuit breaker is driven to move connector and by the by the first leadscrew-nut mechanism Two leadscrew-nut mechanisms driving plug-in type disconnecting switch makes simple in structure and control reliable and stable, plug-type three stations isolation Construction of switch is compact, and can effectively promote its insulating capacity, uses dry air to substitute SF6 as insulating gas, realizes environmental protection Free of contamination purpose.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of the environment-friendly type air insulation ring main unit of one embodiment of the invention.
Drawing reference numeral explanation:
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Base Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention In explaining relative position relation, motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and should not be understood as It indicates or implies its relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ", The feature of " second " can explicitly or implicitly include at least one of the features.In the description of the present invention, " multiple " contain Justice is at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. shall be understood in a broad sense, For example, " fixation " may be a fixed connection, it may be a detachable connection, or integral;It can be mechanical connection, can also be Electrical connection;It can be directly connected, can also can be indirectly connected through an intermediary the connection inside two elements or two The interaction relationship of a element, unless otherwise restricted clearly.It for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In addition, the technical solution between each embodiment of the present invention can be combined with each other, but must be general with this field Logical technical staff can be implemented as basis, will be understood that when the combination of technical solution appearance is conflicting or cannot achieve this The combination of technical solution is not present, also not the present invention claims protection domain within.
The present invention proposes a kind of environment-friendly type air insulation ring main unit.
Fig. 1 is please referred to, in an embodiment of the present invention, environment-friendly type air insulation ring main unit includes ring main unit ontology 1, first Motor 2, the second motor 3, controller 4, the first leadscrew-nut mechanism 5, the second leadscrew-nut mechanism 6, vacuum circuit breaker 7, first Connecting plate 8, the second connecting plate 9, plug-in type disconnecting switch 10, cable access system 11, cable pick out system 12, conductive rod 13, First rotational handle 14 and the second rotational handle 15;Ring main unit ontology 1 includes control room, air insulation room, cable vault and loses heart Room;Air insulation room and control room are set to the opposite sides of 1 top of ring main unit ontology, and discouraged room and cable vault are set to looped network The opposite sides of 1 lower section of cabinet ontology, and air insulation room and discouraged room are located at the same side;Cable access system is provided in cable vault System 11;Vacuum circuit breaker 7, the first leadscrew-nut mechanism 5, the second leadscrew-nut mechanism 6 and plug-in type disconnecting switch 10 are set to In air insulation room;Vacuum circuit breaker 7 includes dynamic connector 71 and quiet connector 72, and dynamic connector 71 picks out system 12 with cable and is connected; One end of 71 first connecting plate 8 of dynamic connector is fixedly connected with dynamic connector 71, and the nut of the other end and the first leadscrew-nut mechanism 5 is logical Bolt fastening is crossed to be connected;The setting of first motor 2 divides in control room, and with the leading screw of the first leadscrew-nut mechanism 5, controller 4 Xiang Lian not;Plug-in type disconnecting switch 10 includes switch base 101 and the switch column 102 for being inserted into switch base 101, and switch base 101 is arranged There are ground connection, disconnection, connect three stations, conductive rod 13 is connected with station is connected;Switch column 102 is connected with quiet connector 72, switch Seat 101 is connected by the second connecting plate 9 with the nut of the second leadscrew-nut mechanism 6;Second motor 3 is arranged in control room, and It is respectively connected with leading screw, the controller 4 of the second leadscrew-nut mechanism 6;Conductive rod 13 is connected with cable access system 11;First turn Fixed handle 14 is connected with the leading screw of the first leadscrew-nut mechanism 5, the leading screw of the second rotational handle 15 and the second leadscrew-nut mechanism 6 It is connected;Air insulation is filled with dry air in room.
In technical scheme of the present invention, the first leadscrew-nut mechanism 5 control vacuum circuit breaker 7 is cut-off, and passes through the first electricity Machine 2 is respectively connected with controller 4, the first leadscrew-nut mechanism 5, and realization automatically controls;First rotational handle 14, which ensures, to be controlled In the case of line fault processed or power-off, manually controllable vacuum circuit breaker 7 is cut-off.Second leadscrew-nut mechanism 6 controls Plug-in type disconnecting switch 10 is cut-off or is grounded, and the second motor 3 is respectively connected with controller 4, the second leadscrew-nut mechanism 6, real Now automatically control;Second rotational handle 15 ensure control circuit failure or power-off in the case of, manually controllable insertion Formula disconnecting switch 10 is cut-off or is grounded.The structure of ring main unit is simple, and control is reliable and precision is high, while being replaced with dry air SF6 effectively reduces the discharge of greenhouse gases as insulating gas, environment-protecting clean.
Specifically, environment-friendly type air insulation ring main unit includes 16 and second ceramic shaft coupling 17 of the first ceramic shaft coupling, the One motor 2 is connected with the leading screw of the first leadscrew-nut mechanism 5 by the first ceramic shaft coupling 16, the second motor 3 and the second leading screw The leading screw of nut body 6 is connected by the second ceramic shaft coupling 17.Ceramic material has excellent thermoelectricity and mechanical performance, in machine Tool aspect of performance has high temperature resistant, heat-insulated, high rigidity, abrasion performance etc.;There are insulating properties, piezoelectricity, semiconductor in terms of thermoelectricity capability Property, magnetism etc..First motor 2 is connected with the leading screw of the first leadscrew-nut mechanism 5 by ceramic shaft coupling;Second motor 3 and The leading screw of two leadscrew-nut mechanisms 6 is connected by ceramic shaft coupling, and ceramic shaft coupling can be by the transmission of the dynamic high efficiency of motor To the leading screw of leadscrew-nut mechanism, the rotation of leading screw drives the translation of nut;The shaft coupling insulation performance of ceramic material is excellent simultaneously It is good, it is ensured that the safety used.
The one end of switch column 102 far from quiet connector 72 is provided with ball 103, and switch base 101 is tubular, switch base 101 are disposed with three ground connection, off and on stations from nozzle into cylinder;Pairs of protrusion 104 is provided on each station, Protrusion 104 is connected with the side wall of switch base 101 by spring, and raised 104 tops are the circular shape of indent;Ball 103 It is inserted into circular cavity, is connected with corresponding station.Switch base 101 is prepared using ceramic material, insulation performance and piezoelectricity Function admirable, and its mechanical strength meets requirement, the switch base 101 made using ceramic material effectively increases insertion The insulating capacity of formula switch.The ball 103 of 102 one end of spherical cavity package switch column that a pair of of protrusion 104 is constituted, and It is squeezed by spring so that ball 103 is well contacted with protrusion 104.
Second motor 3 controls the leading screw rotation of the second leadscrew-nut mechanism 6, and nut translation, nut is driven to connect by second Fishplate bar 9 drives switch base 101 to move, and realizes the connecting and disconnecting of three stations in switch base 101 of switch column 102, in order to Which kind of station the ball 103 of intuitive display current switch column 102 is in, and environment-friendly type air insulate ring main unit including three Display lamp, display lamp are arranged in control room, and display lamp is connected with three station one-to-one correspondence.Display lamp is arranged in control room Interior, the second motor 3 or second handle drive the leading screw of the second leadscrew-nut mechanism 6 to rotate, and ball 103 is made to be in switch A certain station in seat 101, the display lamp being connected at this time with this station light, and reach intuitive display current switch column 102 Ball 103 residing for station purpose.
Air insulation fills dry air in room, needs to be sealed air insulation room, the first leadscrew-nut mechanism 5 difference It is both provided with sealing ring with air insulation room, control room connection;Second leadscrew-nut mechanism 6 respectively with air insulation room, Control room connection is both provided with sealing ring.Junction is sealed using sealing ring, it is therefore prevented that the leakage of gas.
Preferably, it is provided with relief valve 18 on the partition board between air insulation room and discouraged room.Air insulation is indoor dry Dry air since temperature raises caused by rising-heat contracting-cold or dry air be filled with and too low will lead to the indoor air pressure liter of air insulation Height, there are the danger of explosion.When the indoor air pressure of air insulation is higher, can by relief valve 18 to its pressure release to protect Demonstrate,prove the indoor pressure stability of air insulation, it is ensured that safe to use.
Specifically, cable access system 11 includes into wire insertion end, inlet wire wall bushing and inlet wire inserting column;Inlet wire Plug end is inserted on the outside of inlet wire wall bushing, and inlet wire inserting column is worn with forming connection into wire insertion end and stretch out inlet wire Wall sleeve, inlet wire inserting column are connected with conductive rod 13.Can realize the fast insert-pull of inlet wire into wire insertion end, it is simple in structure and It is easy to use.Inlet wire wall bushing is arranged on the indoor wall of air insulation, and is sealed by sealing ring.
Specifically, it includes wire insertion end, outgoing line wall bushing and outlet inserting column, outlet that cable, which picks out system 12, Plug end is inserted on the outside of outgoing line wall bushing, outlet inserting column and goes out wire insertion end and form connection and stretch out outlet to wear Wall sleeve, outlet inserting column are connected with dynamic connector 71.The fast insert-pull of outlet can be realized by plug end occur, it is simple in structure and It is easy to use.Outgoing line wall bushing is arranged on the indoor wall of air insulation, and is sealed by sealing ring.
Preferably, conductive rod 13 is copper rod.Copper has excellent electric conductivity, and ductility is excellent, is made using copper product For conductive rod 13, the electric conductivity of ring main unit is improved.
Preferably, drier is placed in air insulation room.The indoor dry air of air insulation is after a protracted use It can make moist, it is dried using drier, it is ensured that the insulating capacity of ring main unit.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every in the present invention Design under, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/be used in other phases indirectly The technical field of pass is included in the scope of patent protection of the present invention.

Claims (10)

  1. The ring main unit 1. a kind of environment-friendly type air insulate, which is characterized in that including ring main unit ontology, first motor, the second motor, control Device processed, the second leadscrew-nut mechanism, vacuum circuit breaker, the first connecting plate, the second connecting plate, is inserted into first leadscrew-nut mechanism Formula disconnecting switch, cable access system, cable pick out system, conductive rod, the first rotational handle and the second rotational handle;The ring Net cabinet ontology includes control room, air insulation room, cable vault and discouraged room;The air insulation room and the control room are set to Opposite sides above the ring main unit ontology, the discouraged room and the cable vault are set to below the ring main unit ontology Opposite sides, and the air insulation room and the discouraged room are located at the same side;The cable is provided in the cable vault to connect Enter system;The vacuum circuit breaker, first leadscrew-nut mechanism, second leadscrew-nut mechanism and the plug-in type every Pass is left to be set in the air insulation room;The vacuum circuit breaker includes dynamic connector and quiet connector, the dynamic connector and institute State cable pick out system be connected;The dynamic connector is fixedly connected with one end of first connecting plate, the other end and described first The nut of leadscrew-nut mechanism is fastened by bolts connected;The first motor is arranged in the control room, and with described the The leading screw of one leadscrew-nut mechanism, the controller are respectively connected with;The plug-in type disconnecting switch includes switch base and insertion institute The switch column of switch base is stated, the switch base is provided with ground connection, disconnection, connects three stations, the conductive rod and the connection Station is connected;The switch column is connected with the quiet connector, and the switch base passes through the second connecting plate and the second leading screw spiral shell The nut of parent agency is connected;Second motor is arranged in the control room, and with the silk of second leadscrew-nut mechanism Thick stick, the controller are respectively connected with;The conductive rod is connected with the cable access system;First rotational handle with it is described The leading screw of first leadscrew-nut mechanism is connected, and second rotational handle is connected with the leading screw of second leadscrew-nut mechanism; It is filled with dry air in the air insulation room.
  2. The ring main unit 2. environment-friendly type air as described in claim 1 insulate, which is characterized in that the environment-friendly type air insulation looped network Cabinet includes the first ceramic shaft coupling and the second ceramic shaft coupling, the leading screw of the first motor and first leadscrew-nut mechanism It is connected by the first ceramic shaft coupling, the leading screw of second motor and second leadscrew-nut mechanism is joined by the second ceramics Axis device is connected.
  3. The ring main unit 3. environment-friendly type air as described in claim 1 insulate, which is characterized in that the switch column quiet connects far from described One end of head is provided with ball, and the switch base is tubular, the switch base be disposed with from nozzle into cylinder ground connection, Three stations of off and on;Pairs of protrusion is provided on each station, the protrusion and the side wall of the switch base are logical It crosses spring to be connected, the protruding apex is the circular shape of indent;The ball is inserted into the circular cavity, and right The station answered is connected.
  4. The ring main unit 4. environment-friendly type air as claimed in claim 3 insulate, which is characterized in that the environment-friendly type air insulation looped network Cabinet includes three display lamps, and the display lamp is arranged in the control room, and the display lamp and three stations one are a pair of It should be connected.
  5. The ring main unit 5. environment-friendly type air according to any one of claims 1-4 insulate, which is characterized in that the first leading screw spiral shell Parent agency is both provided with sealing ring with the air insulation room, the control room connection respectively;Second feed screw nut Mechanism is both provided with sealing ring with the air insulation room, the control room connection respectively.
  6. The ring main unit 6. environment-friendly type air according to any one of claims 1-4 insulate, which is characterized in that the air insulation room It is provided with relief valve on partition board between the discouraged room.
  7. The ring main unit 7. environment-friendly type air according to any one of claims 1-4 insulate, which is characterized in that cable access system System includes into wire insertion end, inlet wire wall bushing and inlet wire inserting column;It is described that into wire insertion end to be inserted into inlet wire through walls Outside of sleeve, the inlet wire inserting column are connected and stretch out the inlet wire wall bushing with being formed into wire insertion end, it is described into Line inserting column is connected with the conductive rod.
  8. The ring main unit 8. environment-friendly type air according to any one of claims 1-4 insulate, which is characterized in that the cable, which picks out, is System includes wire insertion end, outgoing line wall bushing and outlet inserting column, it is described go out wire insertion end to be inserted into outlet through walls Outside of sleeve, the outlet inserting column and goes out wire insertion end and is formed to connect and stretch out the outgoing line wall bushing, it is described go out Line inserting column is connected with the dynamic connector.
  9. The ring main unit 9. environment-friendly type air according to any one of claims 1-4 insulate, which is characterized in that the conductive rod is copper Stick.
  10. The ring main unit 10. environment-friendly type air according to any one of claims 1-4 insulate, which is characterized in that the air insulation Indoor placement drier.
CN201810245924.6A 2018-03-23 2018-03-23 Environment-friendly type air insulation ring network cabinet Active CN108390304B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810245924.6A CN108390304B (en) 2018-03-23 2018-03-23 Environment-friendly type air insulation ring network cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810245924.6A CN108390304B (en) 2018-03-23 2018-03-23 Environment-friendly type air insulation ring network cabinet

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Publication Number Publication Date
CN108390304A true CN108390304A (en) 2018-08-10
CN108390304B CN108390304B (en) 2019-07-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109727808A (en) * 2018-12-14 2019-05-07 北京双杰电气股份有限公司 Environment-friendly type breaker gas tank
CN116706755A (en) * 2023-07-28 2023-09-05 四川宝光电器设备有限公司 Environment-friendly gas-insulated inflatable cabinet

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CN103199453A (en) * 2012-04-17 2013-07-10 苏州朗格电气有限公司 Nitrogen insulation ring main unit
CN203300530U (en) * 2013-05-27 2013-11-20 国家电网公司 Three-location isolation ground switch and its conductive circuit
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
CN204190252U (en) * 2014-10-27 2015-03-04 江苏华厦电力成套设备有限公司 SF6 insulate vacuum demarcation switch cabinet
CN104779549A (en) * 2015-04-20 2015-07-15 深圳市华诚电力设备有限公司 Intelligent fully-enclosed permanent magnetic vacuum circuit breaker
CN105071280A (en) * 2015-08-21 2015-11-18 亚洲电力设备(深圳)股份有限公司 Vacuum switch ring main unit suitable for being insulated by environment-friendly gas

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103199453A (en) * 2012-04-17 2013-07-10 苏州朗格电气有限公司 Nitrogen insulation ring main unit
CN203300530U (en) * 2013-05-27 2013-11-20 国家电网公司 Three-location isolation ground switch and its conductive circuit
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
CN204190252U (en) * 2014-10-27 2015-03-04 江苏华厦电力成套设备有限公司 SF6 insulate vacuum demarcation switch cabinet
CN104779549A (en) * 2015-04-20 2015-07-15 深圳市华诚电力设备有限公司 Intelligent fully-enclosed permanent magnetic vacuum circuit breaker
CN105071280A (en) * 2015-08-21 2015-11-18 亚洲电力设备(深圳)股份有限公司 Vacuum switch ring main unit suitable for being insulated by environment-friendly gas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109727808A (en) * 2018-12-14 2019-05-07 北京双杰电气股份有限公司 Environment-friendly type breaker gas tank
CN116706755A (en) * 2023-07-28 2023-09-05 四川宝光电器设备有限公司 Environment-friendly gas-insulated inflatable cabinet
CN116706755B (en) * 2023-07-28 2023-10-20 四川宝光电器设备有限公司 Environment-friendly gas-insulated inflatable cabinet

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