CN201781216U - Load switch cabinet - Google Patents
Load switch cabinet Download PDFInfo
- Publication number
- CN201781216U CN201781216U CN 201020227818 CN201020227818U CN201781216U CN 201781216 U CN201781216 U CN 201781216U CN 201020227818 CN201020227818 CN 201020227818 CN 201020227818 U CN201020227818 U CN 201020227818U CN 201781216 U CN201781216 U CN 201781216U
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- China
- Prior art keywords
- switch
- load switch
- bus
- solid insulation
- material layer
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- Expired - Fee Related
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/01—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with resin casing
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The utility model discloses a load switch cabinet, which comprises buses, three-station load switches, wire outlet casing pipes, a cabinet body, and three-station load switch operation mechanisms. The bus, the three-station load switch and a high-voltage live portion of the wire outlet casing pipe of each phase are poured in epoxy resin, a thin semiconductive layer is coated on each epoxy resin surface, modules are in plug-in connection with each other, conducted by spring contacts and sealed by silicon rubber pads, and an integral switch device truly realizes full-solid insulation and complete sealing. A load switch vacuum arc extinguishing chamber and a second switch vacuum arc extinguishing chamber are mounted inside each three-station load switch, movable ends of the load switch vacuum arc extinguishing chambers are connected with fixed ends of the second switch vacuum arc extinguishing chambers, and each load switch is controlled by the corresponding three-station load switch operating mechanism to be in a switch-on state, a switch-off state and a grounding state. The load switch cabinet has the advantages of environmental protection, high environment adaptability and safety and reliability in running.
Description
Technical field
The utility model relates to power equipment manufacturing technology field, particularly a kind of equipment of mainly bearing the on-load switch effect.
Background technology
At present the gas-insulated on-load switch equipment majority of 12kV-40.5kV electric pressure be sulfur hexafluoride gas as dielectric, wherein the on-load switch contact is the cutter head formula, the electrification in high voltage part over the ground, the alternate sulfur hexafluoride gas isolated insulation that utilizes.Though the insulating capacity of sulfur hexafluoride gas is higher than air, the isolation distance that insulate altogether is still very big, and this insulation mode and needed volume can not satisfy society to needs.The characteristic of sulfur hexafluoride gas itself makes the switchgear with sulfur hexafluoride gas-insulating that following drawback be arranged in addition: the first, and sulfur hexafluoride gas is equivalent to 24000 times of carbon dioxide to the destructiveness of atmospheric ozone layer, will aggravate greenhouse effect in case leak; The second, the subfluoride that sulfur hexafluoride gas facilitates electric arc to decompose at moisture content transfers acid speciality to, and human body, environment are all had harmful effect; The 3rd, the condensation point of sulfur hexafluoride gas reduces along with the rising of air pressure, and is relatively poor with its environmental suitability as the power equipment of dielectric; The 4th, sulfur hexafluoride gas has better arc extinguishing ability, but the generation that can not stop electric arc, in case inner arcing takes place, not only the electric equipment of gas tank inside is damaged, even can cause gas tank blast, the safety that jeopardizes equipment and operating personnel.
Summary of the invention
Problem to be solved in the utility model provides a kind of loading switch cabinet, and it is big because of the volume that adopts sulfur hexafluoride gas-insulating to cause that this switch cubicle can solve prior art, and fail safe and reliability are not high, and the problem that does not meet environmental requirement.
To achieve these goals, the technical solution of the utility model is: this loading switch cabinet, comprise that branch is separated with the cabinet of hyperbaric chamber, cable vault and operating mechanism chamber, the bus electric conductor, three-stations load switch and the outlet sleeve pipe electric conductor that have three-phase to connect successively in the described hyperbaric chamber, the moving contact of the described three-stations load switch on the indoor three-stations load switch operating mechanism of described operating mechanism and the described three-phase line is connected parts and is connected, in addition:
The described bus electric conductor of A, each phase and the bus epoxy resins insulation layer that is enclosed in its outside and be located at the outer semiconductive material layer formation of bus solid insulation bus on the outer surface of this bus epoxy resins insulation layer except that the link composition surface; The described three-stations load switch of each phase constitutes the solid insulation on-load switch with the on-load switch epoxy resins insulation layer of the high pressure electric-conductor outside that is enclosed in it and the outer semiconductive material layer of on-load switch that is located on the outer surface of this on-load switch epoxy resins insulation layer except that the link composition surface; The described outlet sleeve pipe electric conductor of each phase and the lead collar tube epoxy resin insulating barrier that is enclosed in its outside and be located at the outer semiconductive material layer formation of outlet sleeve pipe solid insulation outlet sleeve pipe on the outer surface of this lead collar tube epoxy resin insulating barrier except that the link composition surface;
Between B, described solid insulation bus and the described solid insulation on-load switch, adopt the connection of plug insertion socket, between the described bus epoxy resins insulation layer of Plug Division and described on-load switch epoxy resins insulation layer, the insulation elastic sealing gasket is housed; Between described solid insulation on-load switch and the described solid insulation outlet sleeve pipe, adopt the connection of plug insertion socket, between the on-load switch epoxy resins insulation layer of Plug Division and described lead collar tube epoxy resin insulating barrier, the insulation elastic sealing gasket is housed;
The resistance value R that C, the outer semiconductive material layer of described bus, the outer semiconductive material layer of described on-load switch and the outer semiconductive material layer of described outlet sleeve pipe all are the every cm distance of its outer surface is: 500 ohm≤R≤10000 ohm stratiform thing, they all are connected with described cabinet conduction.
In the technique scheme, technical scheme can be more specifically:
Be provided with semiconductive material layer in the bus between the bus electric conductor of the solid insulation bus of described each phase and the described bus epoxy resins insulation layer; Be provided with semiconductive material layer in the outlet sleeve pipe between described solid insulation outlet sleeve pipe electric conductor and the described lead collar tube epoxy resin insulating barrier; The resistance value R2 that the interior semiconductive material layer of semiconductive material layer and described outlet sleeve pipe all is the every cm distance of its outer surface in the described bus is: 500 ohm≤R2≤10000 ohm stratiform thing; Described solid insulation tri-station isolating switch has been drawn together first switch and second switch, and described first switch and second switch all are the switches with vacuum interrupter; The fixed contact link of described first switch is a high voltage input terminal; The moving contact link of described first switch is a high-voltage output end, and this output is connected with the fixed contact link of described second switch; The moving contact link of described second switch is an earth terminal, and this earth terminal is connected with described cabinet; The arc control device of described first switch and described second switch and their fixed contact link, moving contact link and the part that moving contact link with described first switch is connected with the fixed contact link of described second switch all are encapsulated in the inside of the on-load switch epoxy resins insulation layer that forms with the epoxy resin pressure injection; The double threaded screw of the insulated tension pole of described first switch movable contact of actuating and the described second switch moving contact of actuating is connected with described three-stations load switch operating mechanism; The inner part that is connected with the high pressure electric conductor of described insulated tension pole is enclosed in the installing hole of described on-load switch epoxy resins insulation layer by insulation rubber sleeve.
In the various compound modes of technique scheme, technical scheme can also be more specifically: between described solid insulation bus and the described solid insulation on-load switch and the grafting between described solid insulation on-load switch and the described solid insulation outlet sleeve pipe, the electric conductor that is plug one side inserts in socket one side's the electric conductor, the taper body of plug one side's epoxy resins insulation layer inserts in the bellmouth of socket one side's epoxy resins insulation layer, being connected of the mutual crimping of described semiconductive material layer of the described semiconductive material layer of plug one side's outer surface and socket one side's outer surface, between described plug and socket, be connected by bolted.
Owing to adopted technique scheme, the utility model compared with prior art has following beneficial effect:
1. volume is little: because the high-tension circuit parts of the primary line of this cabinet all adopt solid insulation mode pressure injection to become whole one by one module, and connect at the intermodule insulated enclosure, very high dielectric strength can be obtained, zero distance can be accomplished between the module; Adopt the socket connection of band taper hole, can save very big making again and install and remove the space, whole cabinet volume is dwindled greatly;
2. safe and reliable: on the one hand, parts of each phase of the present utility model are independent module, and pass through semiconductive material layer ground connection on its surface, do not have alternate arcing, even certain punctures insulation mutually, also fault can not striden expansion mutually; On the other hand, adopt that vacuum load switch is connected, the disjunction load, and in on-load switch epoxy resins insulation layer, shielding is all pressed in the inner of the endoporus of installation insulated tension pole, avoid the discharge of on-load switch inside or to outside arcing with equal casting die; Again on the one hand, the epoxy resins insulation laminar surface can make the surface induction magnitude of voltage of epoxy resins insulation layer be controlled in the safe scope with the semi-conductive layer material layer that cabinet reliably is connected, and avoids taking place the accidental shock to personnel or equipment;
3. more environmental protection: need not sulfur hexafluoride gas in the utility model, do not have the hidden danger of leakage, the accident of gas tank blast can not take place, can not impact, can not aggravate greenhouse effect, can not produce toxic gas to environment;
4. environmental suitability is strong: parts of the present utility model adopt solid insulation, different parts adopt the plug formula to connect and adopt the sealing of insulation elastic sealing gasket, electrification in high voltage partly is not subjected to the influence of impurity in ambient humidity and the gas, improves the switchgear environmental suitability;
5. convenient for installation and maintenance: parts of the present utility model adopt solid insulation, and the different plug formulas that partly adopt connect, so installation and maintenance are very convenient.
Description of drawings
Accompanying drawing 1 is the utility model embodiment cabinet inner structure schematic diagram;
Accompanying drawing 2 is sectional structure schematic diagrames of a live part functional module of the utility model embodiment.
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
Divide in the cabinet 1 of this loading switch cabinet shown in Figure 1 and be separated with hyperbaric chamber 4, cable vault 8 and operating mechanism chamber 6, the moving contact of the three-stations load switch 2 on the three-stations load switch operating mechanism 5 in the solid insulation bus 3, solid insulation three-stations load switch 2 and the solid insulation outlet sleeve pipe 7 that have three-phase to connect successively in hyperbaric chamber 4, described operating mechanism chamber 6 and the three-phase line is connected parts and is connected.
Shown in Figure 2 is A circuitry phase device and syndeton thereof in the cabinet inner high voltage chamber, and all the other quarter-phase circuit devices and syndeton thereof are identical therewith.
The outside of the part of bus electric conductor 3.1 except that link of the solid insulation bus 3 in the A circuitry phase is used 3.2 sealing of bus epoxy resins insulation layer that the insulating epoxy material adopts pressure injection technology to form, and is provided with semiconductive material layer 3.3 in the bus between bus electric conductor 3.1 and bus epoxy resins insulation layer 3.2; Semiconductive material layer 3.3 is just to be coated in to be used for the position that engages with bus epoxy resins insulation layer 3.2 bus electric conductor 3.1 outside before insulating epoxy material pressure injection technology in the bus, and the resistance value R2 of the interior every cm distance of semiconductive material layer 3.3 outer surface of bus is: 500 ohm≤R2≤10000 ohm; Solid insulation bus 3 is " T " font structure, its mutual two coaxial links are provided with along the cabinet side directions, the bus electric conductor 3.1 of link and its outer bus epoxy resins insulation layer 3.2 are set to one and are used for the high pressure output plug of pegging graft with solid insulation on-load switch 2 high voltage input terminal in the middle of it, and the bus epoxy resins insulation layer 3.2 of this plug portion has tapered front end; Outside bus epoxy resins insulation layer 3.2, except the tapered front end of intercalation part and mutually the part the front portion of two coaxial links be coated with the outer semiconductive material layer 3.4 of bus be housed, the bus resistance value R1 of the every cm distance of semiconductive material layer 3.4 outer surface outward is: 500 ohm≤R≤10000 ohm semiconductive material layer.
Solid insulation tri-station isolating switch 2 in the A circuitry phase includes first switch and second switch, and first switch and second switch all are the switches with vacuum interrupter; The fixed contact link 2.1 of first switch is a high voltage input terminal, the moving contact link 2.13 of first switch is a high-voltage output end, the moving contact link 2.13 of first switch is connected with the fixed contact link 2.5 of second switch, the moving contact link 2.7 of second switch is an earth terminal, this earth terminal with cabinet 1(Fig. 1 in) be connected; The inside that connector 2.8 that the arc control device of first switch and second switch and their fixed contact link 2.1,2.5, moving contact link 2.13,2.7 and moving contact link 2.13 with first switch are connected with the fixed contact link 2.5 of second switch and conductor parts such as attaching nut, second switch moving contact sliding shoe 2.6 all are encapsulated in the on-load switch epoxy resins insulation layer 2.2 that forms with the epoxy resin pressure injection; Among the double threaded screw 2.8 of the insulated tension pole 2.11 of actuating first switch movable contact and actuating second switch moving contact and three-stations load switch operating mechanism 5(Fig. 1) be connected; The insulated tension pole 2.11 inner parts that are connected with the high pressure electric conductor are passed through bolt by the silicone rubber sleeve 2.10 of insulation, pad 2.9 is enclosed in the installing hole of on-load switch epoxy resins insulation layer 2.2, in on-load switch epoxy resins insulation layer 2.2, also be embedded with the equal casting die 2.12 that the main body of being made by copper material is a cylindrical shell, all casting die 2.12 right-hand members are connected by the screw conduction with the fixed contact link 2.1 of first switch, all casting die 2.12 covers on outside the inner of installing hole of insulated tension pole 2.11 of on-load switch epoxy resins insulation layer 2.2, fixed contact link 2.1 and the junction surface of on-load switch epoxy resins insulation layer 2.2 in the hole with first switch, and insulated tension pole 2.11 in the shielding of connection screw insertions in equal casting dies 2.12, in case these parts are outwards discharged; The moving contact link 2.13 outer on-load switch epoxy resins insulation layers 2.2 that the high voltage input terminal that solid insulation tri-station isolating switch 2 and solid insulation bus 3 are pegged graft is arranged to socket first switch are provided with the bellmouth of socket; Part outside on-load switch epoxy resins insulation layer 2.2 except that the installing hole of the bellmouth of socket and insulated tension pole 2.11 is coated with semiconductive material layer 2.3 outside the on-load switch is housed, and the resistance value R1 of the outer every cm distance of semiconductive material layer 2.3 outer surface of on-load switch is: 500 ohm≤R≤10000 ohm semiconductive material layer.
When the plug of solid insulation bus 3 inserts the socket of solid insulation tri-station isolating switch 2, in the spliced eye of the fixed contact link 2.1 that the connection conducting ring and the conducting ring mounting bracket assembly 3.5 thereof of bus electric conductor 3.1 by its front end is plugged on solid insulation tri-station isolating switch 2 first switches, between the taper hole of the cone head part of solid insulation bus 3 plugs and the socket of solid insulation tri-station isolating switch 2 electrically insulating silicone rubber sealing gasket 11 is housed, there is through hole that 4 bolts 9 pass solid insulation bus 3 intercalation parts to be connected, described electrically insulating silicone rubber sealing gasket 11 closely is crimped between solid insulation bus 3 and the solid insulation tri-station isolating switch 2 with nut insertion in the receptacle portion on-load switch epoxy resins insulation layer 2.2 that is embedded in solid insulation tri-station isolating switch 2.
The outside of the part of outlet sleeve pipe electric conductor 7.1 except that link of solid insulation outlet sleeve pipe 7 is used the insulating epoxy material and adopts the lead collar tube epoxy resin insulating barrier 7.3 of pressure injection technology formation to seal, between outlet sleeve pipe electric conductor 7.1 and lead collar tube epoxy resin insulating barrier 7.3, be provided with semiconductive material layer 7.2 in the outlet sleeve pipe, semiconductive material layer 7.2 just is coated with before insulating epoxy material pressure injection technology and is contained in lead collar pipe electric conductor 7.1 and is used for linking to each other with the thread casing epoxy resins insulation layer 7.3 of going out and is connected to the surface in the outlet sleeve pipe, and the resistance value R2 of the interior every cm distance of semiconductive material layer 7.2 outer surface of outlet sleeve pipe is: 500 ohm≤R2≤10000 ohm; The last link of solid insulation outlet sleeve pipe 7 is arranged to socket, lead collar tube epoxy resin insulating barrier 7.3 at socket part is provided with the grafting bellmouth, the part that lead collar tube epoxy resin insulating barrier 7.3 is connected the end for 7 times except that this grafting bellmouth and solid insulation outlet sleeve pipe is provided with the outer semiconductive material layer 7.4 of outlet sleeve pipe, and the resistance value R1 that the outer semiconductive material layer 7.4 of outlet sleeve pipe is the every cm distance of outer surface is: 500 ohm≤R≤10000 ohm semiconductive material layer.
When solid insulation outlet sleeve pipe 7 is pegged graft with the plug of solid insulation tri-station isolating switch 2 high-voltage output ends, the first switch movable contact link 2.13 of solid insulation tri-station isolating switch 2 is plugged in the spliced eye of solid insulation outlet sleeve pipe 7 outlet sleeve pipe electric conductors 7.1 upper ends by the connection conducting ring and the conducting ring mounting bracket assembly thereof of its front end, between the taper hole of the socket of the cone head part of solid insulation tri-station isolating switch 2 plugs and solid insulation outlet sleeve pipe 7 electrically insulating silicone rubber sealing gasket 12 is housed, there is through hole that 4 bolts 10 pass solid insulation tri-station isolating switch 2 intercalation parts to be connected, electrically insulating silicone rubber sealing gasket 12 closely is crimped on solid insulation tri-station isolating switch 2 and solid insulation outlet sleeve pipe 7 with nut insertion in being embedded in solid insulation outlet sleeve pipe 7 receptacle portion lead collar tube epoxy resin insulating barriers 7.3.
When the solid insulation bus 3 of pegging graft successively, solid insulation tri-station isolating switch 2 and solid insulation outlet sleeve pipe 7 are pegged graft mutually, outer semiconductive material layer 3.4 of bus and outer semiconductive material layer 2.3 crimping mutually of on-load switch at the junction surface, the outer semiconductive material layer 2.3 of on-load switch and the outer semiconductive material layer 7.4 of outlet sleeve pipe be also in the crimping mutually of its junction surface, the moving contact link 2.7 by the second switch that is connected with the outer semiconductive material layer 2.3 of on-load switch with cabinet 1(Fig. 1 in) be connected.Under the operating mode, the outer surface of solid insulation bus 3, solid insulation tri-station isolating switch 2 and solid insulation outlet sleeve pipe 7 obtains the close safe current potential of current potential with cabinet 1 under arms.
Claims (3)
1. loading switch cabinet, comprise that branch is separated with the cabinet (1) of hyperbaric chamber (4), cable vault (8) and operating mechanism chamber (6), the bus electric conductor (3.1), three-stations load switch and the outlet sleeve pipe electric conductor (7.1) that have three-phase to connect successively in the described hyperbaric chamber (4), the moving contact of the described three-stations load switch on the three-stations load switch operating mechanism (5) in the described operating mechanism chamber (6) and the described three-phase line is connected parts and is connected, and it is characterized in that:
The described bus electric conductor (3.1) of A, each phase and the bus epoxy resins insulation layer (3.2) that is enclosed in its outside and be located on the outer surface of this bus epoxy resins insulation layer (3.2) except that the link composition surface bus outward semiconductive material layer (3.4) connect to solid insulation bus (3); The described three-stations load switch of each phase connects to solid insulation on-load switch (2) with the on-load switch epoxy resins insulation layer (2.2) of the high pressure electric-conductor outside that is enclosed in it and the outer semiconductive material layer (2.3) of on-load switch that is located on the outer surface of this on-load switch epoxy resins insulation layer (2.2) except that the link composition surface; The described outlet sleeve pipe electric conductor (7.1) of each phase and the lead collar tube epoxy resin insulating barrier (7.3) that is enclosed in its outside and be located on the outer surface of this lead collar tube epoxy resin insulating barrier (7.3) except that the link composition surface the outlet sleeve pipe outward semiconductive material layer (7.2) connect to solid insulation outlet sleeve pipe (7);
Between B, described solid insulation bus (3) and the described solid insulation on-load switch (2), adopt the connection of plug insertion socket, between the described bus epoxy resins insulation layer (3.2) of Plug Division and described on-load switch epoxy resins insulation layer (2.2), the elastic sealing gasket (11) that insulate is housed; Between described solid insulation on-load switch (2) and the described solid insulation outlet sleeve pipe (7), adopt the connection of plug insertion socket, between the on-load switch epoxy resins insulation layer (2.2) of Plug Division and described lead collar tube epoxy resin insulating barrier (7.3), the elastic sealing gasket (12) that insulate is housed;
The resistance value R that C, the outer semiconductive material layer (3.4) of described bus, the outer semiconductive material layer (2.3) of described on-load switch and the outer semiconductive material layer (7.2) of described outlet sleeve pipe all are the every cm distance of its outer surface is: 500 ohm≤R≤10000 ohm stratiform thing, they all are connected with described cabinet conduction.
2. loading switch cabinet according to claim 1 is characterized in that:
Be provided with semiconductive material layer (3.3) in the bus between the bus electric conductor (3.1) of the solid insulation bus (3) of described each phase and the described bus epoxy resins insulation layer (3.2); Be provided with semiconductive material layer (7.2) in the outlet sleeve pipe between described solid insulation outlet sleeve pipe (7) outlet sleeve pipe electric conductor (3.1) and the described lead collar tube epoxy resin insulating barrier (3.2); The resistance value R2 that the interior semiconductive material layer (7.2) of semiconductive material layer (3.3) and described outlet sleeve pipe all is the every cm distance of its outer surface in the described bus is: 500 ohm≤R2≤10000 ohm stratiform thing;
Described solid insulation tri-station isolating switch (2) includes first switch and second switch, and described first switch and second switch all are the switches with vacuum interrupter; The fixed contact link (2.1) of described first switch is a high voltage input terminal; The moving contact link (2.13) of described first switch is a high-voltage output end, and this output is connected with the fixed contact link (2.5) of described second switch; The moving contact link (2.7) of described second switch is an earth terminal, and this earth terminal is connected with described cabinet (1); The arc control device of described first switch and described second switch and their fixed contact link (2.1,2.5), moving contact link (2.13,2.7) and the part (2.8) that moving contact link (2.13) with described first switch is connected with the fixed contact link (2.5) of described second switch all are encapsulated in the inside of the on-load switch epoxy resins insulation layer (2.2) that forms with the epoxy resin pressure injection; The insulated tension pole (2.11) of described first switch movable contact of actuating and the double threaded screw (2.8) of the described second switch moving contact of actuating are connected with described three-stations load switch operating mechanism (5); The inner part that is connected with the high pressure electric conductor of described insulated tension pole (2.11) is enclosed in the installing hole of described on-load switch epoxy resins insulation layer (2.2) by insulation rubber sleeve.
3. loading switch cabinet according to claim 1 and 2, it is characterized in that: between described solid insulation bus (3) and the described solid insulation on-load switch (2) and the grafting between described solid insulation on-load switch (2) and the described solid insulation outlet sleeve pipe (7), the electric conductor that is plug one side inserts in socket one side's the electric conductor, the taper body of plug one side's epoxy resins insulation layer inserts in the bellmouth of socket one side's epoxy resins insulation layer, being connected of the mutual crimping of described semiconductive material layer of the described semiconductive material layer of plug one side's outer surface and socket one side's outer surface, between described plug and socket by bolt (9,10) be fastenedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020227818 CN201781216U (en) | 2010-06-18 | 2010-06-18 | Load switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020227818 CN201781216U (en) | 2010-06-18 | 2010-06-18 | Load switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201781216U true CN201781216U (en) | 2011-03-30 |
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ID=43794419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020227818 Expired - Fee Related CN201781216U (en) | 2010-06-18 | 2010-06-18 | Load switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201781216U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629742A (en) * | 2012-05-06 | 2012-08-08 | 云南云开电气股份有限公司 | Solid insulation switch equipment |
| CN103001136A (en) * | 2012-11-30 | 2013-03-27 | 北海银河开关设备有限公司 | Solid insulating looped network circuit breaker cabinet |
| CN103001137A (en) * | 2012-11-30 | 2013-03-27 | 北海银河开关设备有限公司 | Solid insulating looped network load switch cabinet |
| CN103036171A (en) * | 2012-12-04 | 2013-04-10 | 北海银河开关设备有限公司 | Solid insulation voltage transformer cabinet |
| CN106451191A (en) * | 2016-11-14 | 2017-02-22 | 国家电网公司 | Cubicle gas-insulated switchgear |
| CN106654869A (en) * | 2016-11-04 | 2017-05-10 | 北京双杰电气股份有限公司 | Switch cabinet |
-
2010
- 2010-06-18 CN CN 201020227818 patent/CN201781216U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629742A (en) * | 2012-05-06 | 2012-08-08 | 云南云开电气股份有限公司 | Solid insulation switch equipment |
| CN103001136A (en) * | 2012-11-30 | 2013-03-27 | 北海银河开关设备有限公司 | Solid insulating looped network circuit breaker cabinet |
| CN103001137A (en) * | 2012-11-30 | 2013-03-27 | 北海银河开关设备有限公司 | Solid insulating looped network load switch cabinet |
| CN103036171A (en) * | 2012-12-04 | 2013-04-10 | 北海银河开关设备有限公司 | Solid insulation voltage transformer cabinet |
| CN106654869A (en) * | 2016-11-04 | 2017-05-10 | 北京双杰电气股份有限公司 | Switch cabinet |
| CN106451191A (en) * | 2016-11-14 | 2017-02-22 | 国家电网公司 | Cubicle gas-insulated switchgear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20190618 |
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| CF01 | Termination of patent right due to non-payment of annual fee |