CN109510080A - 10kV intelligence express user inlet wire boundary type cable branch box - Google Patents
10kV intelligence express user inlet wire boundary type cable branch box Download PDFInfo
- Publication number
- CN109510080A CN109510080A CN201811221670.0A CN201811221670A CN109510080A CN 109510080 A CN109510080 A CN 109510080A CN 201811221670 A CN201811221670 A CN 201811221670A CN 109510080 A CN109510080 A CN 109510080A
- Authority
- CN
- China
- Prior art keywords
- switch
- module
- vacuum
- operating mechanism
- controller
- 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
Links
- 238000004891 communication Methods 0.000 claims abstract description 10
- 238000002955 isolation Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000017525 heat dissipation Effects 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a kind of 10kV intelligence express user inlet wire boundary type cable branch box, shell including box house is arranged in, enclosure interior is equipped with vacuum switch and disconnecting switch, vacuum switch includes vacuum switch operating mechanism, vacuum switch operating mechanism is connected with the upper end of insulated pull rod, and the lower end of insulated pull rod is connected with the moved end of vacuum interrupter；Main line connector connects several twig connectors, demarcation switch is equipped between the main line connector and twig connectors, the demarcation switch and controller communicate to connect, and the controller is equipped with communication module, and the controller controls demarcation switch according to communication module received signal and acts.Demarcation switch is arranged in the present invention between main line, branch line, and is controlled by controller demarcation switch, realizes branch control and reduces maintenance scope of power outage, improves power supply reliability.
Description
Technical field
The present invention relates to electric power project engineerings, and in particular to cable branch box.
Background technique
Traditional cable feeder pillar, structure include the shell that box house is arranged in, enclosure interior be equipped with vacuum switch and
Disconnecting switch, vacuum switch include vacuum switch operating mechanism, and vacuum switch operating mechanism is connected with the upper end of insulated pull rod,
The lower end of insulated pull rod is connected with the moving contact of vacuum interrupter；Disconnecting switch includes isolator operating mechanism, disconnecting switch
For operating mechanism through being connected in the middle part of isolation pull rod and isolation switch, one end of isolation switch and moving contact are hinged.When work, vacuum is opened
It closes operating mechanism and drives the moving contact of vacuum interrupter to move up and down through insulated pull rod, vacuum interrupter realizes division movement；Every
Isolation switch separating brake and combined floodgate are driven through isolation pull rod from switch operating mechanism.Disadvantage is that: electric arc is put in order to prevent
Electricity reduces the volume of cable branch box, and case is filled with SF6 gas, and 6 gas of SF can generate the substance being harmful to the human body,
High temperature area is using that can have an impact air pressure in cabinet, and in low temp area, using gas can liquefy, which uses
After need irregularly to detect leakproofness, later maintenance cost is high；Wiring is complicated in cable branch box, increases production cost.
Certainly, there has also been solid insulation cable branch box, the interior hollow insulation for being equipped with upper opening of shell currently on the market
Cylinder, vacuum switch operating mechanism and isolator operating mechanism are arranged on the upside of insulating cylinder, insulated pull rod and vacuum interrupter
It is arranged inside insulating cylinder, isolation pull rod, isolation switch and moving contact are also disposed inside insulating cylinder, and moving contact is through conductive material
It is flexible coupling with the moved end of vacuum interrupter；The side of insulating cylinder is equipped with end of incoming cables, and the other side of insulating cylinder is equipped with leading-out terminal, cabinet
The internal side close to shell end of incoming cables is enter line side, and box house is outgoing line side close to the side of shell leading-out terminal.It is used
Solid insulation cylinder, it is no longer necessary to use SF6 gas, improve the class of insulation.
Several branches can be separated from cable branch box, once one of branch breaks down, it is necessary to cut off cable point
Power supply of the branch case to all branches.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of 10kV intelligence express user inlet wire boundary type cables point
Branch case realizes branch control and reduces maintenance scope of power outage.
In order to solve the above technical problems, the present invention adopts the following technical scheme: 10kV intelligence express user inlet wire boundary type
Cable branch box, the shell including box house is arranged in, enclosure interior are equipped with vacuum switch and disconnecting switch, vacuum switch packet
Vacuum switch operating mechanism is included, vacuum switch operating mechanism is connected with the upper end of insulated pull rod, the lower end of insulated pull rod and true
The moved end of empty arc-chutes is connected；Disconnecting switch includes isolator operating mechanism, isolator operating mechanism through isolation pull rod with
It is connected in the middle part of isolation switch, one end of isolation switch and moving contact are hinged, the hollow insulating cylinder of upper opening are equipped in shell, very
Empty switch operating mechanism and isolator operating mechanism are arranged on the upside of insulating cylinder, and insulated pull rod and vacuum interrupter setting exist
Inside insulating cylinder, isolation pull rod, isolation switch and moving contact are also disposed inside insulating cylinder, and moving contact is through conductive material and vacuum
The moved end of arc-chutes is flexible coupling；The side of insulating cylinder is equipped with end of incoming cables, and the other side of insulating cylinder is equipped with leading-out terminal, and box house leans on
The side of nearly shell end of incoming cables is enter line side, and box house is outgoing line side close to the side of shell leading-out terminal, and the outgoing line side connects
Main line connector is connect, the main line connector connects several twig connectors, and boundary is equipped between the main line connector and twig connectors and is opened
It closing, the demarcation switch is equipped with short circuit indicator and plug-in potential indicator, and the demarcation switch and controller communicate to connect,
The controller is equipped with communication module, and the controller controls demarcation switch according to communication module received signal and acts.
Preferably, the power supply of the feeder pillar is connected with switch, and the switch is connected with Switching Power Supply line, the feeder pillar
Equipped with anti-lightning strike module, the anti-lightning strike module includes module input wires terminal plug, module output wiring terminal plug, mould
Block input wires terminal socket, module outlet terminal sub-socket, the module input wires terminal plug and module output connect
Line terminals plug connection switch power supply line, the module input wires terminal plug and the plug of module input wires terminal socket connect
It connects, the module output wiring terminal plug and the plug of module outlet terminal sub-socket connect, and the anti-lightning strike module is equipped with
Protective shell.
Preferably, the top surface of the cabinet is equipped with catch basin, and the left and right sides wall of the cabinet is equipped with heat dissipation waterway channel,
The catch basin be equipped with the discharge outlet that be connected to of heat dissipation waterway channel, be equipped with solenoid valve at the discharge outlet, the solenoid valve and
Controller communication connection.
Preferably, the cabinet is equipped with the contact temperature-measuring sensor of detection box temperature, the temperature transducer and control
Device communication connection processed, controller control solenoid valve when spin manifold temperature reaches setting threshold values are opened.
The present invention by adopting the above technical scheme, has the following beneficial effects:
1, by the way that demarcation switch is arranged between main line, branch line, and demarcation switch is controlled by controller, is realized
Branch control and reduce maintenance scope of power outage, improve power supply reliability.
2, design has independent lightning-protection module, it is ensured that lightning-protection module is isolated with the circuit in feeder pillar, even if being burned out
Circuit in feeder pillar will not be influenced, loss range can be effectively controlled.
3, water-cooling is increased on cabinet, i.e., the setting heat dissipation waterway channel in the side wall of cabinet, water is along water of radiation
When paths flow to bottom surface from box top, water-cooled cooling is carried out to the side wall of cabinet naturally.
The specific technical solution of the present invention and its advantages will in the following detailed description in conjunction with attached drawing into
Row detailed description.
Detailed description of the invention
Present invention will be further described below with reference to the accompanying drawings and specific embodiments:
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the decomposition texture schematic diagram of lightning-protection module；
Fig. 3 is the structural schematic diagram of catch basin.
Specific embodiment
The technical solution of the embodiment of the present invention is explained and illustrated below with reference to the attached drawing of the embodiment of the present invention, but under
It states embodiment to be merely a preferred embodiment of the present invention, and not all.Based on the implementation example in the implementation mode, those skilled in the art
Obtained other embodiments without making creative work, belong to protection scope of the present invention.
As shown in Figure 1,10kV intelligence express user inlet wire boundary type cable branch box, including being arranged in inside cabinet 1
Shell 11, enclosure interior are equipped with vacuum switch and disconnecting switch, and vacuum switch includes vacuum switch operating mechanism, vacuum switch behaviour
Make mechanism to be connected with the upper end of insulated pull rod, the lower end of insulated pull rod is connected with the moved end of vacuum interrupter；Disconnecting switch packet
Isolator operating mechanism is included, isolator operating mechanism in the middle part of isolation pull rod and isolation switch through being connected, and the one of isolation switch
Hold, the shell interior hollow insulating cylinder that is equipped with upper opening hinged with moving contact, vacuum switch operating mechanism and isolator operation
Mechanism is arranged on the upside of insulating cylinder, and insulated pull rod and vacuum interrupter are arranged inside insulating cylinder, and pull rod, isolation switch is isolated
It is also disposed inside insulating cylinder with moving contact, moving contact is flexible coupling through the moved end of conductive material and vacuum interrupter；Insulating cylinder
Side is equipped with end of incoming cables, and the other side of insulating cylinder is equipped with leading-out terminal, and box house is enter line side close to the side of shell end of incoming cables,
Box house is outgoing line side close to the side of shell leading-out terminal, and the outgoing line side connects main line connector, the main line connector connection
Several twig connectors.Demarcation switch is equipped between the main line connector and twig connectors, the demarcation switch is equipped with short circuit instruction
Device and plug-in potential indicator, the demarcation switch and controller communicate to connect, and the controller is equipped with communication module, described
Controller controls demarcation switch movement according to communication module received signal.Demarcation switch is controlled by controller, it is real
Show branch control and reduced maintenance scope of power outage, improves power supply reliability.Setting short circuit indicator and plug-in electrification refer to
Show device, be conducive to daily monitoring and maintenance, peace can be further increased by polyester material and silicone rubber material seal interface switch
Quan Xing.
Refering to what is shown in Fig. 2, the power supply of the feeder pillar is connected with switch, the switch is connected with Switching Power Supply line 21, institute
Feeder pillar is stated equipped with anti-lightning strike module 2, the anti-lightning strike module includes module input wires terminal plug 22, module output connection
Terminal plug 23, module input wires terminal socket 24, module outlet terminal sub-socket 25, the module input wires terminal
Plug and module output wiring terminal plug connection switch power supply line, the module input wires terminal plug connect with module input
The plug connection of line end sub-socket, the module output wiring terminal plug and the plug of module outlet terminal sub-socket connect, institute
Anti-lightning strike module is stated equipped with protective shell 26.Lightning-protection module can be plugged directly, after lightning-protection module damage, directly by it
It pulls up, changes new lightning-protection module, be very convenient to fast, not influence the use of equipment.
Refering to what is shown in Fig. 3, the top surface of the cabinet is equipped with catch basin 12, the left and right sides wall of the cabinet is equipped with water of radiation
Paths, the catch basin are equipped with the discharge outlet 121 being connected to heat dissipation waterway channel, are equipped with solenoid valve, institute at the discharge outlet
It states solenoid valve and controller communicates to connect, the cabinet is equipped with the contact temperature-measuring sensor of detection box temperature, the thermometric
Sensor and controller communicate to connect, and controller control solenoid valve when spin manifold temperature reaches setting threshold values is opened.Wherein,
Catch basin can collect daily precipitation, and discharge outlet can not be opened when cabinet does not need cooling, only reach in spin manifold temperature
Solenoid valve can just be opened when setting threshold values, when water flows through from top to bottom out of heat dissipation waterway channel, the left side wall of cabinet and the right side
Side wall is by water-cooled cooling effect.When necessary liquid level sensor can be installed additional in water storage tank 12, if rainfall is larger, water storage
Liquid level in slot 12, which is higher than liquid level sensor, opens solenoid valve to be drained in time.The waterway channel that radiates can be in multistage S-shaped
On the one hand structure setting reduces water velocity, heat dissipation contact area can be improved in still further aspect, and the waterway channel that radiates
A plurality of branch can be set, connect with the same discharge outlet, facilitate and controlled.The bottom surface of the water storage tank 12 is intermediate high
The structure that degree is high, left and right sides height is low, the discharge outlet are located at height lowest part in the left and right sides of water storage tank 12, can allow water
Flow to discharge outlet.
In addition to above preferred embodiment, there are other embodiments of the invention, and those skilled in the art can be according to this
Invention makes various changes and modifications, and as long as it does not depart from the spirit of the invention, should belong in claims of the present invention and determines
The range of justice.
Claims (4)
1.10kV intelligence express user inlet wire boundary type cable branch box, the shell including box house is arranged in, enclosure interior
Equipped with vacuum switch and disconnecting switch, vacuum switch includes vacuum switch operating mechanism, and vacuum switch operating mechanism and insulation are drawn
The upper end of bar is connected, and the lower end of insulated pull rod is connected with the moved end of vacuum interrupter；Disconnecting switch includes isolator operation
Mechanism, for isolator operating mechanism through being connected in the middle part of isolation pull rod and isolation switch, one end of isolation switch and moving contact are hinged,
The hollow insulating cylinder of upper opening is equipped in shell, vacuum switch operating mechanism and isolator operating mechanism are arranged at insulation
Cylinder upside, insulated pull rod and vacuum interrupter are arranged inside insulating cylinder, and isolation pull rod, isolation switch and moving contact are also disposed at
Inside insulating cylinder, moving contact is flexible coupling through the moved end of conductive material and vacuum interrupter；The side of insulating cylinder is equipped with end of incoming cables, absolutely
The other side of edge cylinder is equipped with leading-out terminal, and box house is enter line side close to the side of shell end of incoming cables, and box house is close to shell
The side of leading-out terminal is outgoing line side, which is characterized in that the outgoing line side connects main line connector, and the main line connector connection is several
Wire terminal, is equipped with demarcation switch between the main line connector and twig connectors, the demarcation switch is equipped with short circuit indicator and inserts
Formula potential indicator is pulled out, the demarcation switch and controller communicate to connect, and the controller is equipped with communication module, the controller
Demarcation switch movement is controlled according to communication module received signal.
2. 10kV intelligence express user inlet wire boundary type cable branch box according to claim 1, which is characterized in that described
The power supply of feeder pillar is connected with switch, and the switch is connected with Switching Power Supply line, and the feeder pillar is equipped with anti-lightning strike module, described
Anti-lightning strike module include module input wires terminal plug, module output wiring terminal plug, module input wires terminal socket,
Module outlet terminal sub-socket, the module input wires terminal plug and module output wiring terminal plug connection switch electricity
Source line, the module input wires terminal plug and the plug of module input wires terminal socket connect, the module output connection
Terminal plug and the plug of module outlet terminal sub-socket connect, and the anti-lightning strike module is equipped with protective shell.
3. 10kV intelligence express user inlet wire boundary type cable branch box according to claim 1, which is characterized in that described
The top surface of cabinet is equipped with catch basin, and the left and right sides wall of the cabinet is equipped with heat dissipation waterway channel, and the catch basin is equipped with and dissipates
The discharge outlet of hot water paths connection, solenoid valve is equipped at the discharge outlet, and the solenoid valve and controller communicate to connect.
4. 10kV intelligence express user inlet wire boundary type cable branch box according to claim 3, which is characterized in that described
Cabinet is equipped with the contact temperature-measuring sensor of detection box temperature, and the temperature transducer and controller communicate to connect, the control
Device processed control solenoid valve when spin manifold temperature reaches setting threshold values is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811221670.0A CN109510080A (en) | 2018-10-19 | 2018-10-19 | 10kV intelligence express user inlet wire boundary type cable branch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811221670.0A CN109510080A (en) | 2018-10-19 | 2018-10-19 | 10kV intelligence express user inlet wire boundary type cable branch box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109510080A true CN109510080A (en) | 2019-03-22 |
Family
ID=65746760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811221670.0A Pending CN109510080A (en) | 2018-10-19 | 2018-10-19 | 10kV intelligence express user inlet wire boundary type cable branch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109510080A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202772069U (en) * | 2012-09-07 | 2013-03-06 | 临安亿安电力电子科技有限公司 | Electrical switch and earth leakage protection apparatus with plug-in type lightning protection module |
| CN203983792U (en) * | 2014-07-04 | 2014-12-03 | 国家电网公司 | A kind of novel quick heat radiating low-voltage comprehensive distribution box |
| CN205016842U (en) * | 2015-09-15 | 2016-02-03 | 江苏亚开电气有限公司 | Solid insulation intelligence permanent magnetism vacuum cable branch case |
| CN205407210U (en) * | 2016-03-23 | 2016-07-27 | 江苏申源电气工程有限公司 | Cable branch box |
-
2018
- 2018-10-19 CN CN201811221670.0A patent/CN109510080A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202772069U (en) * | 2012-09-07 | 2013-03-06 | 临安亿安电力电子科技有限公司 | Electrical switch and earth leakage protection apparatus with plug-in type lightning protection module |
| CN203983792U (en) * | 2014-07-04 | 2014-12-03 | 国家电网公司 | A kind of novel quick heat radiating low-voltage comprehensive distribution box |
| CN205016842U (en) * | 2015-09-15 | 2016-02-03 | 江苏亚开电气有限公司 | Solid insulation intelligence permanent magnetism vacuum cable branch case |
| CN205407210U (en) * | 2016-03-23 | 2016-07-27 | 江苏申源电气工程有限公司 | Cable branch box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103219666B (en) | Modular solid insulation ring network cabinet | |
| CN203134677U (en) | Insulating cylinder and main loop structure adopting same | |
| CN202019159U (en) | Intellectualized solid sealing insulation fixed type high-voltage switch cabinet | |
| CN105633849A (en) | SF6 insulating vacuum boundary switch cabinet | |
| CN109510080A (en) | 10kV intelligence express user inlet wire boundary type cable branch box | |
| CN205303963U (en) | Heat dissipation formula block terminal | |
| CN204376293U (en) | A kind of solid insulation switch module for solid-state insulated switchgear | |
| CN208111341U (en) | A kind of pole with current-taking function | |
| CN113328362B (en) | High-efficient radiating 10KV small-size intelligent fixed switch equipment | |
| CN204835352U (en) | Circuit breaker air chamber and have two feeder cabinets of keeping apart of this circuit breaker air chamber | |
| CN109524933A (en) | A kind of efficient auto-cut-off type jack box | |
| CN214899808U (en) | Atmospheric air insulation environment-friendly cabinet | |
| CN214100292U (en) | Moisture-proof and condensation-proof switch cabinet | |
| CN204680935U (en) | The isolation of rotary separated solid and earthed switch structure | |
| CN205016842U (en) | Solid insulation intelligence permanent magnetism vacuum cable branch case | |
| CN205666177U (en) | Outdoor interchange high pressure boundary circuit breaker | |
| CN208272484U (en) | Closed gas insulated switch cabinet | |
| CN112531640A (en) | Electric leakage circuit breaking system of electrical equipment | |
| CN214313889U (en) | Electrical connection plug-in type container | |
| CN207124393U (en) | A kind of distribution box | |
| CN216750716U (en) | High tension switchgear with good waterproof construction | |
| CN204068006U (en) | A kind of pot type high-voltage combined electrical apparatus with series connection vacuum interrupter | |
| CN218958397U (en) | Spring mechanism normal pressure cabinet | |
| CN2766426Y (en) | Box-type sulfur hexafluoride switch cabinet | |
| CN211508251U (en) | Novel safe and reliable high-low voltage switch cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190322 |
|
| RJ01 | Rejection of invention patent application after publication |