CN207234268U - Minimize outdoor ring network case - Google Patents
Minimize outdoor ring network case Download PDFInfo
- Publication number
- CN207234268U CN207234268U CN201721206375.9U CN201721206375U CN207234268U CN 207234268 U CN207234268 U CN 207234268U CN 201721206375 U CN201721206375 U CN 201721206375U CN 207234268 U CN207234268 U CN 207234268U
- Authority
- CN
- China
- Prior art keywords
- ring network
- network case
- babinet
- outdoor ring
- miniaturization
- 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.)
- Active
Links
Landscapes
- Patch Boards (AREA)
Abstract
Controller switching equipment technical field is the utility model is related to, outdoor ring network case, including babinet are minimized in particular to one kind（18）, main panel（3）, entrance bushing（5）, outlet casing tube（6）, earthing switch（10）, operating mechanism（12）And base（16）, which uses common box type structure, babinet（18）Rear portion for integral type seal gas tank（9）, the front upper part of the gas tank is operating mechanism room；The lower part of the gas tank is arrester room.The advantages that looped network box structure of the utility model is compact, floor space is small, maintenance workload is small, mounting means is flexible, and its mounting means in box-type substation is combined, miniaturization outdoor ring network case has a wide range of applications during the reconstruction of distribution network construction and city line.
Description
Technical field
The present invention relates to controller switching equipment technical field, and outdoor ring network case is minimized in particular to one kind.
Background technology
Power distribution network refers to from mains side（Power transmission network and power generating equipment）Receive electric energy, and by distribution facility on the spot or step by step
Distribute to the electric power networks of all types of user.In recent years, country continues to increase distribution network planning, construction and upgrading dynamics and with Denso
Standby R＆D fund is put into, and in constantly improve and on the basis of improving existing product technical merit, utilizes new technology, new material, new
Technological development is swift and violent.In terms of medium voltage switchgear equipment, important breakthrough is achieved, product is presented structure type and enriches, dielectric
Various, technical parameter and performance are lifted steadily.Current alternative equipment constantly comes out, and portioned product has reached or approaches
International most advanced level.
To improve power supply reliability, user is obtained power supply from both direction, usually circularize power supply network connection,
This power supply mode is referred to as ring network power supply.So, although general supply is single service, from each distribution branch
For but obtain being similar to the material benefit supplied power with double circuit, so as to improve the reliability of power supply.It is continuous with strong intelligent grid
Development, the advantage of ring network power supply system reliability will be protruded more, high-tension switch gear general custom used in ring network power supply
Upper to be known as ring main unit, its core uses on-load switch or on-load switch fuse combined electric apparatus or breaker, has structure
Simply, it is small, price is low, can improve the advantages that power supply parameter and performance and power supply safety, be widely used in city and live
In the power distribution station and box-type substation of the load centers such as residence cell, skyscraper, large public building, factory and enterprise.
Ring main unit（Ring Main Unit）Three kinds of air insulation, solid insulation and gas-insulated are generally divided into, gas is exhausted
Edge cabinet is mainly SF6 ring main units, and because it utilizes the SF6 gas-insulateds of excellent insulation performance, therefore whole cabinet is from external environment condition
Influence, while SF6 gas-insulated performances are three times of air, thus SF6 ring main units are small, floor space is few, enjoys user
Favor.Current ring main unit such as inside cable room space is limited, torsion is easily produced at casing, it is easy to cable connection occur and ask
Topic.In addition, switching device is installed respectively, connected using silicon rubber, volume is big, and the integrated, degree of modularity is not high to cause babinet
Take up a large area, being unable to adaptation to local conditions in some construction limited space regions carries out power distribution station construction.
With the fast development of distributed generation resource, micro-capacitance sensor, intelligent power, electric automobile, distribution network load rapid growth,
Significant changes are occurring for function and form, and the requirement to ring network power supply security, reliability, adaptability is also higher and higher.
Such as the Chinese utility model patent that Authorization Notice No. is 206041236 U of CN, it discloses a kind of outdoor ring
Net cabinet, including babinet, looped network cabinet, head cover, wind turbine, solar panel, storage battery, controller, door-controlled lamp；Storage battery, wind
Machine is electrically connected with the controller；Hollow cavity is enclosed between head cover and the top plate of babinet；Wind turbine is arranged in hollow cavity；Top
The left end of lid and the right end of head cover are equipped with Air Filter；Some sprays are distributed with the left plate of babinet and on the right plate of babinet
Head；Some nozzles are connected by guide duct with the air outlet of wind turbine；Further include some temperature sensors being arranged in babinet；
If dry temperature sensor is electrically connected with the controller；Door-controlled lamp is arranged on the inner side of roof box；Door-controlled lamp and storage battery electricity
Connection.The beneficial effect of the utility model is：The temperature in babinet can effectively be reduced, using the teaching of the invention it is possible to provide illumination, it is convenient to repair people
Member's night carries out maintenance operation, and overall structure is simple, reasonable, and dust tightness is good, environmental protection, and energy consumption is low.Parts more zero in cabinet
Dissipate, cause whole cabinet volume big.
Utility model content
In order to solve above-mentioned technological deficiency existing in the prior art, it is an object of the invention to provide one kind miniaturization is outdoor
Looped network case, with solve existing distribution network system high-voltage switch equipment and control device structural shape is unreasonable, take up a large area,
The problems such as long construction period, meet that power distribution network development trend minimizes ring main unit, is integrated, intelligent, highly reliable, non-maintaining
With environmental-friendly requirement.
A kind of miniaturization outdoor ring network case according to the invention, including babinet, main panel, entrance bushing, outlet casing tube, connect
Ground switch, operating mechanism and base, the looped network case use common box type structure, and the rear portion of babinet seals gas tank, the gas for integral type
The front upper part of case is operating mechanism room；The lower part of the gas tank is arrester room.Looped network box structure of the invention is compact, floor space
Small, the advantages that maintenance workload is small, mounting means is flexible, and its mounting means in box-type substation is combined, miniaturization is outdoor
Looped network case has a wide range of applications during the reconstruction of distribution network construction and city line.
Preferably, the babinet top is equipped with charge valve and pressure release passage.Relief valve can keep sealing gas tank air pressure
In safe range, equipment and personal safety are fully ensured that.
In any of the above-described scheme preferably, the charge valve is equipped with air gauge, before which is located at gas tank
Portion, can monitor insulating gas status information with simple, intuitive.
In any of the above-described scheme preferably, on-load switch, molten storehouse and on-load switch fuse are equipped with the babinet
Combination sideboard, is equipped with fuse and arrester in the combination sideboard, and the fuse unit in fuse is using yi word pattern arrangement.Into（Feedback）Line is adopted
With gas insulated load switch cabinet, on-load switch fuse combination electrical cabinet is used to transformer circuit, realizes inverse-time overcurrent
Protection, inlet-outlet line go out mode after using side, further reduce box volume.
On-load switch is three-stations load switch, it incorporates the function of both on-load switch and earthing switch, and by one
Body formula on-load switch is completed, and can so be realized mechanical latching, is prevented the powered conjunction earthing knife-switch of major loop.Switching manipulation mode carries
Spring energy agency, when switch shaft rotation, makes the helical compression spring energy storage of crank spring mechanism, and electric shock is managed corresponding shifting crossing dead point
After to the position of " conjunction " or " dividing ", energy release, reaches and divides at high speed, closes a floodgate, spring energy agency grasps manual operator
Make more convenient.
In any of the above-described scheme preferably, the fuse uses limiting fuse, and interrupting process is Melt molten
Caused by electric arc quartz sand effect under arc extinguishing disconnecting circuit, while fuse striker start on-load switch dropout key (i.e.
Spring energy-storage ram), make three pole contact synchronization separating brake of on-load switch, whole interrupting process presses inverse time lag time response,
Rapid disengagement failure, avoids phase-deficient operation in 10ms.Since actuation time is very short, transfer current is much smaller than fault current peak value,
Therefore circuit and power equipment are effectively protected.Fuse unit mounting means using yi word pattern arrange, save connection busbar and
Babinet longitudinal space is connected with operating mechanism room at the same time, by dropout interlock, more succinct safe and reliable.
In any of the above-described scheme preferably, injection technique and full frame shield structure after the arrester is selected.
In any of the above-described scheme preferably, the arrester selects front inserting AC gapless oxide elbow-type to take shelter from the thunder
Device.
Arrester uses front inserting AC gapless oxide elbow-type arrester, and protection distribution transformer avoids being struck by lightning
Overvoltage and the damage of system operatio overvoltage；Arrester is all insulation, complete using injection technique after advanced and shielding construction design
It is closed, non-maintaining, can plug；Arrester is transversely mounted, bottom-up, can utilize cabinet space to greatest extent, is reduced
Box height size, improves stock utilization.
In any of the above-described scheme preferably, an artificial line is added on the main panel；The lower part of main panel is equipped with
High-voltage charge display device with self-checking function.
An artificial line is added on main panel, simulation primary equipment circuit relationships and electriferous state in sealing gas tank, have
Help intuitively observe on high-tension side charged state.Lower panels are designed with the high-voltage charge display device with self-checking function, can
Realize that self is detected, and ensures the normal and reliability of its function in time；Outgoing line side electrification display can be carried out with grounding switch to be joined
Lock, avoids the powered conjunction earthing knife-switch of major loop.
In any of the above-described scheme preferably, the top of the babinet is equipped with box cover, and the cover board carries the gradient
For 3 ° of draining inclination angle, casing top ponding is avoided to influence equipment safety operation.
In any of the above-described scheme preferably, the top of the box cover is equipped with rotary hanging ring, the spiral shell of the hanging ring
Bolt can 360 ° of rotations, 180 ° of upsets are adapted to a variety of lifting operating modes, no moment of flexure moment of torsion, and safety coefficient is high；Rigging out can be packed up and hung
Ring, equipment effective height can reduce 70mm.
In any of the above-described scheme preferably, the babinet is welded using stainless steel laser.Generous beauty, air-tightness
Good, degree of protection reaches IP67 so that facility environment is adaptable, is operable with the adverse circumstances such as more dust, humidity, High aititude.
3mm stainless steel lasers welding not only waterproof durable, and can ensure to seal gas tank can bear draught head when vacuumizing, inflating and
It is indeformable.
In any of the above-described scheme preferably, the sidepiece of the babinet and rear portion are respectively equipped with entrance bushing and lead collar
Pipe.
In order to adapt to distribution network automated and improve distribution reliability requirement, motor drive mechanism can be installed additional as needed, matched somebody with somebody
Power grid control terminal unit etc., realizes backstage main website to the operation of field device element and fault monitoring, long distance meter reading, straighforward operation
Deng.
Brief description of the drawings
Fig. 1 is the left front view into rear outlet of a preferred embodiment of miniaturization outdoor ring network case according to the invention.
Fig. 2 is the right front view into rear outlet of a preferred embodiment of miniaturization outdoor ring network case according to the invention.
Fig. 3 is front view of another preferred embodiment left side according to the invention for minimizing outdoor ring network case into rear outlet.
Fig. 4 is the right main view into rear outlet of another preferred embodiment of miniaturization outdoor ring network case according to the invention
Figure.
Fig. 5 is the side view of the embodiment illustrated in fig. 1 of miniaturization outdoor ring network case according to the invention.
Fig. 6 is the internal structure schematic diagram of the embodiment illustrated in fig. 5 of miniaturization outdoor ring network case according to the invention.
Fig. 7 is the internal structure schematic diagram of the embodiment illustrated in fig. 1 of miniaturization outdoor ring network case according to the invention.
Description of reference numerals：
Artificial line 1, high-voltage charge display device 2, main panel 3, rotary hanging ring 4, entrance bushing 5, outlet casing tube 6,
Pressure release passage 7, on-load switch 8, gas tank 9, earthing switch 10, charge valve 11, operating mechanism 12, fuse 13, arrester 14, gas
Press table 15, base 16, box cover 17, babinet 18.
Embodiment
It is that the following description is substantially merely exemplary and be not intended to the limitation disclosure, application or purposes.Below
The embodiment of present invention miniaturization outdoor ring network case is further described with reference to Figure of description.
As shown in Figure 1 and Figure 2, a preferred embodiment of miniaturization outdoor ring network case according to the invention it is left into rear outlet,
The right front view into rear outlet.It is an object of the invention to provide one kind minimize outdoor ring network case, inlet-outlet line way for one into
Scene 2, the looped network case include babinet 18, main panel 3, entrance bushing 5, outlet casing tube 6, earthing switch 10, operating mechanism 12 and bottom
Seat 16（As shown in Figure 7）, which uses common box type structure, and the rear portion of babinet 18 seals gas tank 9 for integral type, the gas tank
Front upper part is operating mechanism room；The lower part of the gas tank is arrester room.Looped network box structure of the invention is compact, floor space is small,
The advantages that maintenance workload is small, mounting means is flexible, and its mounting means in box-type substation is combined, minimize outdoor ring network
Case has a wide range of applications during the reconstruction of distribution network construction and city line.
As shown in Figure 6, Figure 7, in the present embodiment, 18 top of babinet is equipped with charge valve 11 and pressure release passage 7.Pressure release
Valve 17 can keep sealing gas tank air pressure to be in safe range, fully ensure that equipment and personal safety.
In the present embodiment, the charge valve 11 is equipped with air gauge 15, which is located at the front portion of gas tank 9, can be with
Simple, intuitive monitors insulating gas status information.
In the present embodiment, on-load switch 8, molten storehouse and on-load switch fuse combined cabinet are equipped with the babinet 18, should
Be equipped with fuse 13 and arrester 14 in combination sideboard, the fuse unit in fuse is using yi word pattern arrangement.Into（Feedback）Line uses gas
Body insulation load switch cabinet, uses on-load switch fuse combination electrical cabinet to transformer circuit, realizes inverse-time overcurrent protection,
Inlet-outlet line goes out mode after using side, further reduces box volume.
On-load switch 8 is three-stations load switch, it incorporates the function of both on-load switch and earthing switch, and by one
Body formula on-load switch is completed, and can so be realized mechanical latching, is prevented the powered conjunction earthing knife-switch of major loop.Switching manipulation mode carries
Spring energy agency, when switch shaft rotation, makes the helical compression spring energy storage of crank spring mechanism, and electric shock is managed corresponding shifting crossing dead point
After to the position of " conjunction " or " dividing ", energy release, reaches and divides at high speed, closes a floodgate, spring energy agency grasps manual operator
Make more convenient.
In the present embodiment, the fuse 13 uses limiting fuse, and interrupting process is electric caused by Melt molten
Arc arc extinguishing disconnecting circuit under quartz sand effect, while (i.e. spring energy-storage is hit the dropout key of fuse striker startup on-load switch
Hit device), make three pole contact synchronization separating brake of on-load switch, whole interrupting process is pressed inverse time lag time response, cut rapidly in 10ms
Disconnected failure, avoids phase-deficient operation.Since actuation time is very short, transfer current is much smaller than fault current peak value, therefore effectively protects
Circuit and power equipment are protected.Fuse unit mounting means is arranged using yi word pattern, is saving connection busbar and babinet longitudinal space
Meanwhile be connected by dropout interlock with operating mechanism room, it is more succinct safe and reliable.
In the present embodiment, injection technique and full frame shield structure after the arrester 14 is selected.
In the present embodiment, the arrester 14 selects front inserting AC gapless oxide elbow-type arrester.
Arrester uses front inserting AC gapless oxide elbow-type arrester, and protection distribution transformer avoids being struck by lightning
Overvoltage and the damage of system operatio overvoltage；Arrester is all insulation, complete using injection technique after advanced and shielding construction design
It is closed, non-maintaining, can plug；Arrester is transversely mounted, bottom-up, can utilize cabinet space to greatest extent, is reduced
Box height size, improves stock utilization.
In the present embodiment, an artificial line 1 is added on the main panel 3；The lower part of main panel 3 is equipped with and carries Autonomous test
The high-voltage charge display device 2 of function.
An artificial line 1 is added on main panel 3, simulation primary equipment is sealing circuit relationships and electriferous state in gas tank,
Help intuitively to observe on high-tension side charged state.Lower panels are designed with the high-voltage charge display device 2 with self-checking function,
It can realize that self is detected, and ensures the normal and reliability of its function in time；Outgoing line side electrification display 2 can be carried out with grounding switch
Interlocking, avoids the powered conjunction earthing knife-switch of major loop.
In the present embodiment, the top of the babinet 18 is equipped with box cover 17, and the cover board is with the row that the gradient is 3 °
Water inclination angle, avoids casing top ponding from influencing equipment safety operation.
In the present embodiment, the top of the box cover 17 is equipped with rotary hanging ring 4（As shown in Figure 5）, the hanging ring
Bolt can 360 ° of rotations, 180 ° of upsets are adapted to a variety of lifting operating modes, no moment of flexure moment of torsion, and safety coefficient is high；Rigging out can be packed up
Hanging ring, equipment effective height can reduce 70mm.
In the present embodiment, the babinet 18 is welded using stainless steel laser.Generous beauty, air-tightness is good, degree of protection
Up to IP67 so that facility environment is adaptable, is operable with the adverse circumstances such as more dust, humidity, High aititude.3mm stainless steels swash
Photocoagulation not only waterproof durable, but also can ensure to seal gas tank and can bear draught head when vacuumizing, inflating and indeformable.
In the present embodiment, the sidepiece of the babinet 18 and rear portion are respectively equipped with entrance bushing 5 and outlet casing tube 6（Such as Fig. 5
It is shown）.
It is one into three structure gone out the invention also discloses inlet-outlet line way finally refering to shown in Fig. 3, Fig. 4, internal structure
It is identical with One In and Two Out, increase by one group of outlet arrangement compared with One In and Two Out looped network case, be not added with repeating herein.
The miniaturization outdoor ring network case of the present invention has the following advantages：
1st, miniaturization outdoor ring network case of the invention is designed according to outdoor requirement, and degree of protection is high, and weatherability is strong, is saved
Conventional mounting guard shield is removed, heat dissipation, dehumidifying, defrosting, change the no longer another consumption energy such as dew, so as to fulfill energy saving.
2nd, the design of outdoor ring network case integrated compact type is minimized, compact, shape rule, is directly seated in electric power change
Above depressor, " zero " floor space is realized, cable shaft design-build becomes Foundation Design construction with case and is combined into one, greatly speeds up and apply
Work progress.
When the 3rd, minimizing outdoor ring network case applied to miniaturization preassembled transformer station, it is installed on above transformer, inlet-outlet line
Casing and operating surface are in 1.5-1.8m, facilitate operating personnel's installation and repairing, meet ergonomic designs.
4th, miniaturization outdoor ring network case uses standardized designs, can be chosen to install according to outlet scheme, directly be made with transformer
Integral type stand-alone power distribution unit, is previously-completed assembling, wiring and tune during in-site installation without secondary combination, all devices in plant area
Examination, reduces the construction period, can meet quick power demands.
5th, miniaturization outdoor ring network case inlet-outlet sleeve is arranged on babinet sidepiece and rear portion, is installed using open cable empty
Between, it is convenient, efficient, convenient from the space limitation between guard shield and indoor type ring main unit, cable installation extension.
6th, minimize on outdoor ring network case operating mechanism panel and add an artificial line, help intuitively to observe on high-tension side
Switch division situation, checking experiment, definite, the raising O＆M security reliability of electriferous state.
7th, using the high-voltage charge display device 2 with self-checking function, it can realize that self is detected, and ensures its function in time
Normal and reliability；Outgoing line side electrification display can be carried out with grounding switch and interlocked, and avoid the powered conjunction earthing knife-switch of major loop.
8th, all charging members are sealed in reliable ground closing gas tank, non-maintaining from external environment influence；Each portion
Part and connection annex carry out all insulation, hermetically sealed, full-shield structure design, safe and reliable tangible.
It will be apparent to those skilled in the art that the miniaturization outdoor ring network case of the present invention includes each several part in this specification
Any combination.As space is limited and in order to make specification concise, these combinations are not discussed in detail one by one herein, but seen this theory
After bright book, the scope of the present invention that any combination for each several part being made of this specification is formed is self-evident.
Claims (12)
1. one kind miniaturization outdoor ring network case, including babinet（18）, main panel（3）, entrance bushing（5）, outlet casing tube（6）, connect
Ground switchs（10）, operating mechanism（12）And base（16）, it is characterised in that：The looped network case uses common box type structure, babinet（18）
Rear portion for integral type seal gas tank（9）, the front upper part of the gas tank is operating mechanism room；The lower part of the gas tank is arrester room.
2. miniaturization outdoor ring network case as claimed in claim 1, it is characterised in that：Babinet（18）Top is equipped with charge valve（11）
And pressure release passage（7）.
3. miniaturization outdoor ring network case as claimed in claim 2, it is characterised in that：Charge valve（11）It is equipped with air gauge
（15）, which is located at gas tank（9）Front portion.
4. miniaturization outdoor ring network case as claimed in claim 1, it is characterised in that：Babinet（18）It is interior to be equipped with on-load switch（8）、
Molten storehouse and on-load switch fuse combined cabinet, the combination sideboard is interior to be equipped with fuse（13）And arrester（14）, it is molten in fuse
Silk cylinder is arranged using yi word pattern.
5. miniaturization outdoor ring network case as claimed in claim 4, it is characterised in that：Fuse（13）Using limiting fuse.
6. miniaturization outdoor ring network case as claimed in claim 4, it is characterised in that：Arrester（14）After selection injection technique and
Full frame shield structure.
7. miniaturization outdoor ring network case as claimed in claim 4, it is characterised in that：Arrester（14）Select front inserting exchange nothing
Gap oxide elbow-type arrester.
8. miniaturization outdoor ring network case as claimed in claim 1, it is characterised in that：Main panel（3）Artificial line of upper addition
（1）；Main panel（3）Lower part be equipped with self-checking function high-voltage charge display device（2）.
9. the miniaturization outdoor ring network case as described in claim 1 or 4, it is characterised in that：Babinet（18）Top be equipped with babinet
Cover board（17）, the cover board is with the draining inclination angle that the gradient is 3 °.
10. miniaturization outdoor ring network case as claimed in claim 9, it is characterised in that：Box cover（17）Top be equipped with rotation
Rotatable hanging ring（4）, the bolt of the hanging ring can 360 ° of rotations, 180 ° of upsets.
11. the miniaturization outdoor ring network case as described in claim 1 or 4, it is characterised in that：Babinet（18）Using stainless steel laser
Welding.
12. the miniaturization outdoor ring network case as described in claim 1 or 4, it is characterised in that：Babinet（18）Sidepiece and rear part
She You not entrance bushing（5）And outlet casing tube（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721206375.9U CN207234268U (en) | 2017-09-20 | 2017-09-20 | Minimize outdoor ring network case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721206375.9U CN207234268U (en) | 2017-09-20 | 2017-09-20 | Minimize outdoor ring network case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207234268U true CN207234268U (en) | 2018-04-13 |
Family
ID=61863243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721206375.9U Active CN207234268U (en) | 2017-09-20 | 2017-09-20 | Minimize outdoor ring network case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207234268U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516845A (en) * | 2017-09-20 | 2017-12-26 | 江苏其厚智能电气设备有限公司 | Minimize outdoor ring network case |
-
2017
- 2017-09-20 CN CN201721206375.9U patent/CN207234268U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516845A (en) * | 2017-09-20 | 2017-12-26 | 江苏其厚智能电气设备有限公司 | Minimize outdoor ring network case |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106532534A (en) | Miniaturized preassembled substation for towns | |
| CN103489696B (en) | A kind of vacuum circuit breaker with double breaks structure of 10kV box built-in disconnector | |
| CN104967036B (en) | Integrated intelligent combination transformer station | |
| CN207234268U (en) | Minimize outdoor ring network case | |
| CN204835331U (en) | Integration intelligence combination transformer substation | |
| CN201562961U (en) | AC generator neutral point integrated cabinet | |
| CN203491181U (en) | 10kV box-type double-break vacuum circuit breaker structure with built-in isolation switch | |
| CN207303687U (en) | A kind of contact net console mode isolating switch cabinet | |
| CN201118131Y (en) | Prepackage type integrated transformer substation | |
| CN201846012U (en) | Switching device for 24KV alternating-current metal closed ring net | |
| CN107516845A (en) | Minimize outdoor ring network case | |
| CN212258161U (en) | Automatic switching formula dual supply block terminal | |
| CN210693242U (en) | Full-insulation full-sealing inflatable cabinet | |
| CN210723937U (en) | Lower isolation belt ground knife fixed high-voltage ring main unit structure | |
| CN207234224U (en) | A kind of Miniature low-voltage comprehensive distribution box | |
| CN207925997U (en) | A kind of Chinese character pin-shaped arrangement case structure changes | |
| CN207967646U (en) | A kind of open air intelligent power distribution low-tension switch cabinet | |
| CN207800473U (en) | Intelligent vacuum circuit breaker | |
| CN201674138U (en) | Box type fixed high-tension ring network switchgear | |
| CN201270418Y (en) | Box type high voltage passive automatic compensation apparatus | |
| CN215681474U (en) | High-voltage switch equipment | |
| CN110086177A (en) | Capacitor switching module for JP cabinet | |
| CN204012295U (en) | The compact-type low-voltage comprehensive distribution box that a kind of one side opens the door | |
| CN216648971U (en) | Automatic intelligent dual power supply distribution box who switches | |
| CN220122619U (en) | All-insulation cabinet type reactive power compensation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |