CN1599166A - Fixed vacuum breaker switch cabinet - Google Patents
Fixed vacuum breaker switch cabinet Download PDFInfo
- Publication number
- CN1599166A CN1599166A CN 03146888 CN03146888A CN1599166A CN 1599166 A CN1599166 A CN 1599166A CN 03146888 CN03146888 CN 03146888 CN 03146888 A CN03146888 A CN 03146888A CN 1599166 A CN1599166 A CN 1599166A
- Authority
- CN
- China
- Prior art keywords
- breaker
- vacuum circuit
- walls
- insulation
- bus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a fixed type vacuum circuit breaker switch cabinet, which is composed of the cabinet, mother line, isolating switch which can connect with the outlet terminal of the mother line, vacuum circuit breaker, which isolates the switch connection through connecting mother line, and wall-perforating clapboard insulator. The abovementioned wall-perforating clapboard insulator has the wall-perforating clapboard which separates the mother line cabinet from the cable cabinet. The installing pedestal butt of the vacuum circuit breaker connects with the pedestal of the wall-perforating clapboard insulator. Because the vacuum circuit breaker is fixed invertedly, the pedestals of the inverted vacuum circuit breaker and the isolating switch are both at the joint part of the mother line cabinet and the cable cabinet, which makes the vacuum circuit breaker and the operating mechanism of the isolating switch so close that they can be installed in one operational cabinet. It not only can dispense with the supporting rack of the circuit breaker, but also makes the electric part of the main circuit unnecessary to keep enough insulation distance against ground with the supporting rack.
Description
Technical field
The present invention relates to a kind of electric power system switchgear, particularly relate to a kind of fixed vacuum circuit-breaker switch cubicle.
Background technology
The killer switch cabinet of 12KV can be divided into two big classes substantially both at home and abroad at present, and a class is a withdraw-type killer switch cabinet, and a class is fixed killer switch cabinet.When maintenance, withdraw-type switch cabinet is more convenient than fixed switch cubicle, though withdraw-type switch cabinet is in order to realize removing function, propelling, shift-out mechanism and valve have been increased, also increased and adapted with it that comparatively complicated mechanical is chain, more than simultaneously six dynamic/static contact grafting points and 24-56 grafting point, this has not only increased manufacturing cost and manufacture difficulty, has also increased unreliable factor simultaneously.But advantages such as withdraw-type switch cabinet is still little with volume, compact conformation, maintenance convenience are subjected to user's favor.Continuous progress along with the manufacturing technology of circuit breaker, improve constantly the mechanical endurance of the vacuum circuit-breaker of spring mechanism, 10,000 times mechanical endurance, oneself was the basic reliability requirement of vacuum circuit-breaker, say nothing of the mechanical endurance of permanent magnetic actuator vacuum circuit breaker, oneself has surpassed the mechanical endurance of vacuum interrupter.The mechanical endurance of now domestic and international vacuum circuit-breaker, mostly oneself is in the scope below 100,000 times more than 10,000 times.Along with improving constantly of breaker reliability, withdraw-type switch cabinet compare with fixed switch cubicle the maintenance that had easily advantage lose gradually.Domestic most of switch experts think, if now select for use vacuum circuit-breaker to make the main electrical equipment primary element of switch cubicle, the reliability of fixed switch cubicle is than the reliability height of withdraw-type switch cabinet, because fixed switch cubicle need not to advance, shifts out, valve and comparatively complicated mechanical is chain etc., manufacturing cost also decreases simultaneously.But the volume of state's internally-fixed switch cubicle is bigger now, and promptly floor space is bigger, and in the urban network restructuring of an inch of land is an inch of gold, fixed switch cubicle does not give full play of the advantage of non-maintaining vacuum circuit-breaker.The wide 750mm that is generally of the fixed killer switch cabinet of external compact cabinet, the isolating switch that switch cubicle is used adopts the SF6 on-load switch, and this causes the cost height, and is not easy to see tangible isolation fracture, does not meet the national conditions of China.In sum, develop miniaturization, obvious cut-off point is arranged, be easy to be connected, fixed vacuum circuit-breaker switch cubicle easy for installation, not only can reduce cost, and can improve the reliability of switch cubicle with other cabinet types.
A kind of known fixed switch cubicle (as shown in Figure 1) comprises cabinet 1 ', is arranged on the busbar 2 ' of cabinet 1 ' internal upper part, the isolating switch 3 ' that is connected with busbar 2 ' output, is installed in sensor 6 ' and man-operating mechanism etc. behind vacuum circuit-breaker 5 ' in the cabinet 1 ', the electric current by vacuum circuit-breaker mounting panel 4 '.The base of the vacuum circuit-breaker 5 ' of this switch cubicle down, for just putting installation, must establish the circuit breaker mounting bracket in the cable vault, the conductive attachment of major loop must keep enough insulation distances with support, it is bigger that this kind installation takies the space of cable vault, makes troubles for the cable installation and maintenance.
Summary of the invention
The object of the present invention is to provide a kind of have big operating space, miniaturization, fixed vacuum circuit-breaker switch cubicle easy for installation.
For achieving the above object, solution of the present invention is:
The present invention is a kind of fixed vacuum circuit-breaker switch cubicle, and it comprises bus-bar room, circuit breaker cable chamber, operating mechanism relaying protection chamber, busbar, isolating switch and vacuum circuit-breaker; After the busbar of described bus-bar room is three-phase, in, preceding arrangement, the end of incoming cables of isolating switch be installed in bus-bar room in busbar be connected, the leading-out terminal of the vacuum circuit-breaker that the leading-out terminal of isolating switch is indoor with being installed in the circuit breaker cable is connected.The base of described vacuum circuit-breaker mounting seat end face and isolating switch is fitted fixing.
Described isolating switch adopts tri-station isolating switch, and it mainly is made up of a deciliter operating mechanism, power transmission shaft, insulated tension pole, insulation connecting lever, isolation knife, bus end static contact and insulation, barrier insulation through walls and ground connection fixed contact; Isolation knife is movably connected in the upper end of barrier insulation through walls, and the other end is positioned at the bus end and can combines with bus end static contact and insulation or intermediate isolating or combine with the ground connection fixed contact; Deciliter operating mechanism drives the rotation end swing of isolation knife around isolation knife by power transmission shaft, insulation connecting lever and insulated tension pole; Described barrier insulation through walls mainly constitutes by insulator with the separated dividing plate through walls of bus-bar room and circuit breaker cable chamber, and insulator places the middle part that is fixed on dividing plate through walls; Described bus end static contact and insulation is at bus-bar room, and the leading-out terminal that is positioned at the indoor isolation knife of circuit breaker cable is connected with the leading-out terminal of vacuum circuit-breaker.
The rotation end of described isolation knife is movably articulated in the shaft hole at middle part of barrier insulation through walls.
The level height of sub-shaft hole of described barrier insulation through walls and dividing plate through walls upper surface is the 30-150 millimeter.
The dividing plate through walls of described barrier insulation through walls forms two planes of a upper and lower dislocation at longitudinal cross-section, and the bottom surface on plane is fitted fixing on the upper surface of vacuum circuit-breaker mounting seat and the dividing plate through walls.
The downward elongated end of the insulator of described barrier insulation through walls has a breach that can be connected with connection bus.
The sub-angle of inclination of described bus end static contact and insulation is 40 °-60 °.
Vacuum circuit-breaker of the present invention is to be inverted to be installed, the base of the vacuum circuit-breaker after the upside-down mounting and the base of isolating switch be the junction surface that separates of each comfortable bus-bar room and cable vault all, this makes that the operating mechanism of vacuum circuit-breaker and isolating switch is nearer to being installed in the operating room, simplified the design of mechanical chain mechanism, dwindled the length of mechanical chain mechanism, make mechanical chain mechanism compact more, improved the reliability of mechanical chain.And the downward elongated end of barrier insulation through walls of isolating switch of the present invention has a breach that can be connected with connection bus, the existence of this breach, make connection bus when being connected, can not occupy insulation distance with barrier insulation through walls, connection bus and switch cubicle wall strengthen, insulation distance strengthens, thereby can dwindle the volume of switch cubicle.
Barrier insulation through walls of the present invention has changed the cylindrical structural of conventional insulators, traditional dividing plate through walls and insulator are combined, design this benzvalene form of the present invention barrier insulation through walls, and barrier insulation through walls is whole to adopt the epoxy material cast of insulation to form, make isolating switch the insulation distance of prerequisite vertical direction transfer to the level insulation distance, the present invention has utilized the wasted space of switch cubicle, has effectively reduced the shared height of isolating switch.
In addition, the mounting bracket of circuit breaker because the present invention has defaulted, thus the space that increase current transformer and cable are installed has reduced the workmen and has advanced the cabinet mounting hardness, and the size of switch cubicle can further be dwindled.
By above-mentioned design, though the overall dimension of switch cubicle of the present invention significantly reduces (600 wide * 900 dark * 1950 height), the electrical apparatus insulation distance of switch cubicle does not a bit reduce, insulation margin is big.The present invention adopts air insulation, and specific volume is also little mutually for the C-GIS2100 inflation cabinet of overall dimension and Japanese up-to-date development (600 wide * 1185 dark * 2300 height), and cost of the present invention is inflated low many of cabinet than C-G1S2100.The present invention can easily see before the cabinet close close, deciliter state of isolation and ground connection fracture, bus in the cabinet, arrange before adopting in the back to be connected with the ring main unit of interior dress on-load switch and combined electrical apparatus and need not the transition cabinet, the cable installing space is big, highly meets the requirement about power supply department 600mm.
If vertical side dress circuit breaker (Chinese patent ZL02219787.7) of tri-station isolating switch and inventor's invention is combined, not only can significantly reduce the overall volume of switch cubicle, reduced manufacturing cost, and improved the reliability of switch cubicle, and simplified and being connected of other cabinet types, the external form of inflation cabinet had, the price of fixed switch cubicle, tangible visual fracture is arranged, and abundant clog-free cable installing space is desirable controller switching equipment.
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the schematic diagram of known switch cubicle;
Fig. 2 is a front view of the present invention;
Fig. 3 is an end view of the present invention;
Fig. 4 is the front view of isolating switch of the present invention;
Fig. 5 is the end view of isolating switch of the present invention;
Fig. 6 is the vertical view of isolating switch of the present invention;
Fig. 7 is the front view of the present invention's barrier insulation through walls;
Fig. 8 attempts for the side of the present invention's barrier insulation through walls;
Fig. 9 is the vertical view of the present invention's barrier insulation through walls;
Figure 10 is the another kind of installation diagram of operating mechanism relaying protection of the present invention chamber.
Embodiment
As Fig. 2, shown in Figure 3, the fixed vacuum circuit-breaker switch cubicle of the present invention comprises bus-bar room 10, circuit breaker cable chamber 20, operating mechanism relaying protection chamber 1, busbar 2, tri-station isolating switch 3 and vacuum circuit-breaker 4.
After described busbar 2 is A, B, C three-phase, in, preceding arrangement, the end of incoming cables of tri-station isolating switch 3 be installed in bus-bar room 10 in busbars 2 is connected, the leading-out terminal of the vacuum circuit-breaker 4 that the leading-out terminal of tri-station isolating switch 3 is interior with being installed in circuit breaker cable chamber 20 is connected.
As Fig. 4, Fig. 5, shown in Figure 6, described tri-station isolating switch 3 mainly is made up of deciliter operating mechanism 31, power transmission shaft 30, insulated tension pole 32, insulation connecting lever 40, isolation knife 33, bus end static contact and insulation 34, ground connection fixed contact 35, barrier insulation through walls 36.Described bus end static contact and insulation 34 is at bus-bar room 10.Described isolation knife 33 is positioned at bus end 21 (as shown in Figure 3); Deciliter operating mechanism 31 drives isolation knife 33 by power transmission shaft 30, insulation connecting lever 40 and insulated tension pole 32 and rotates about it end 331 swings, thereby be implemented in different angles and bus end static contact and insulation 34 or ground connection fixed contact 35 in conjunction with separate, or make isolation knife 33 be in unsettled intermediate isolating state, realize to close close, isolation and grounding function.
Shown in Fig. 7-9, described barrier insulation 36 through walls mainly is made of insulator 362 and dividing plate through walls 367, this barrier insulation 3 through walls is to be poured into a mould by the epoxy material of insulation to form, insulator 362 places the middle part that is fixed on dividing plate 367 through walls, its portion of extending upward forms a connecting portion 363 that is connected with the rotation end 331 of isolation knife 33, middle part at this connecting portion 363 laterally forms a through hole 364, and promptly shaft hole 364; The downward elongated end of described barrier insulation 36 through walls has a breach 361 that can be connected with connection bus 8, the existence of this breach 361, make connection bus 8 (as shown in Figure 5) when being connected, can not occupy insulation distance with barrier insulation 36 through walls, connection bus 8 strengthens with the switch cubicle wall, insulation distance strengthens, thereby has dwindled the volume of switch cubicle.Described dividing plate through walls 37 forms two planes 371,372 (that is: step surface) of a upper and lower dislocation at longitudinal cross-section, and described barrier insulation 35 shaft holes 364 through walls are the 30-150 millimeter with the level height of dividing plate through walls 357 upper surfaces.When assembling, the upper surface of the mounting seat 42 (as shown in Figure 5) of vacuum circuit-breaker 4 just with dividing plate 37 through walls on the bottom surface (that is: the base of tri-station isolating switch 3) on plane 371 fit fixing, vacuum circuit-breaker 4 is to be inverted to be installed, the base 42 of the vacuum circuit-breaker 4 after the upside-down mounting and the base of tri-station isolating switch 3 be the junction surface that separates of each comfortable bus-bar room 10 and cable vault 20 all, this makes vacuum circuit-breaker 4 nearer to being installed in the operating room with the operating mechanism of tri-station isolating switch 3, simplified the design of mechanical chain mechanism, dwindle the length of mechanical chain mechanism, improved the reliability of mechanical chain.Described dividing plate through walls 37 also can be upper and lower two parallel planes at longitudinal cross-section.
As shown in Figure 5, the rotation end 331 of isolation knife 33 is movably articulated in the shaft hole 364 (as shown in Figure 7) at barrier insulation through walls 36 middle parts, and its leading-out terminal is connected with the leading-out terminal of vacuum circuit-breaker 4.
Described bus end static contact and insulation 34 that is connected with bus is bird formula insulator, the angle of inclination is between 40 °-60 °, the best is 50 °, and beak and bus link have guaranteed the insulation distance of bus link and switch cubicle side plate, has reserved the space for isolation knife 33 rotations and operating axis.
As shown in figure 10, for shared useful space, further reduction operation mechanism relaying protection chamber 1, the present invention can be horizontal arrangement with operating mechanism relaying protection chamber 1.
Vertical side dress switch vacuum circuit-breaker (Chinese patent ZL02219787.7) and tri-station isolating switch that vacuum circuit-breaker 4 among the present invention preferably adopts the inventor to be invented.Certainly, also can adopt the isolating switch of other form, but arrangement promptly falls into protection scope of the present invention as long as vacuum circuit-breaker is upside-down mounting.
Operation principle of the present invention:
Main electric elements in the present invention adopt vertical side dress switch vacuum circuit-breaker and three station sides dress isolating switch, if claim that the vacuum circuit-breaker of traditional fixed switch cubicle is a formal dress, the installation of vacuum circuit-breaker 4 so of the present invention just can be referred to as upside-down mounting.Vacuum circuit-breaker 4 bases 42 after the upside-down mounting and the mounting seat of tri-station isolating switch 3, all joint portion that separates of each comfortable bus-bar room 10 and circuit breaker cable chamber 20.This structural design, make the operating mechanism of vacuum circuit-breaker 4 and tri-station isolating switch 3, close together is to being contained in the operating room together, simplified the design of mechanical chain, dwindled the connection length of mechanical chain, improved the reliability of mechanical chain, cable is installed clear space and is maximized big under equal cabinet profile.
Claims (7)
1, a kind of fixed vacuum circuit-breaker switch cubicle, it comprises bus-bar room, circuit breaker cable chamber, operating mechanism relaying protection chamber, busbar, isolating switch and vacuum circuit-breaker; After the busbar of described bus-bar room is three-phase, in, preceding arrangement, the end of incoming cables of isolating switch be installed in bus-bar room in busbar be connected, the leading-out terminal of the vacuum circuit-breaker that the leading-out terminal of isolating switch is indoor with being installed in the circuit breaker cable is connected; It is characterized in that: the base of described vacuum circuit-breaker mounting seat end face and isolating switch is fitted fixing.
2, fixed vacuum circuit-breaker switch cubicle according to claim 1, it is characterized in that: described isolating switch adopts tri-station isolating switch, and it mainly is made up of a deciliter operating mechanism, power transmission shaft, insulated tension pole, insulation connecting lever, isolation knife, bus end static contact and insulation, barrier insulation through walls and ground connection fixed contact; Isolation knife is movably connected in the upper end of barrier insulation through walls, and the other end is positioned at the bus end and can combines with bus end static contact and insulation or intermediate isolating or combine with the ground connection fixed contact; Deciliter operating mechanism drives the rotation end swing of isolation knife around isolation knife by power transmission shaft, insulation connecting lever and insulated tension pole; Described barrier insulation through walls mainly constitutes by insulator with the separated dividing plate through walls of bus-bar room and circuit breaker cable chamber, and insulator places the middle part that is fixed on dividing plate through walls; Described bus end static contact and insulation is at bus-bar room, and the leading-out terminal that is positioned at the indoor isolation knife of circuit breaker cable is connected with the leading-out terminal of vacuum circuit-breaker.
3, fixed vacuum circuit-breaker switch cubicle according to claim 2 is characterized in that: the rotation end of described isolation knife is movably articulated in the shaft hole at middle part of barrier insulation through walls.
4, fixed vacuum circuit-breaker switch cubicle according to claim 2 is characterized in that: the level height of sub-shaft hole of described barrier insulation through walls and dividing plate through walls upper surface is the 30-150 millimeter.
5, according to claim 2 or 4 described fixed vacuum circuit-breaker switch cubicles, it is characterized in that: the dividing plate through walls of described barrier insulation through walls forms two planes of a upper and lower dislocation at longitudinal cross-section, and the bottom surface on plane is fitted fixing on vacuum circuit-breaker mounting seat end face and the dividing plate through walls.
6, according to claim 2 or 4 described fixed vacuum circuit-breaker switch cubicles, it is characterized in that: the downward elongated end of the insulator of described barrier insulation through walls has a breach that can be connected with connection bus.
7, fixed vacuum circuit-breaker switch cubicle according to claim 1 is characterized in that: the sub-angle of inclination of described bus end static contact and insulation is 40 °-60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03146888 CN1278465C (en) | 2003-09-19 | 2003-09-19 | Fixed vacuum breaker switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03146888 CN1278465C (en) | 2003-09-19 | 2003-09-19 | Fixed vacuum breaker switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1599166A true CN1599166A (en) | 2005-03-23 |
| CN1278465C CN1278465C (en) | 2006-10-04 |
Family
ID=34659704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03146888 Expired - Fee Related CN1278465C (en) | 2003-09-19 | 2003-09-19 | Fixed vacuum breaker switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1278465C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009003345A1 (en) * | 2007-07-05 | 2009-01-08 | Beijing Sojo Electric Co., Ltd. | Solid insulation full-closed loop networt cabinet |
| CN100461567C (en) * | 2005-04-04 | 2009-02-11 | 沈阳昊诚电气设备有限公司 | Small size vacuum loading switch cabinet |
| CN100546137C (en) * | 2007-02-12 | 2009-09-30 | 常州太平洋电力设备(集团)有限公司 | Single phase gas insulation switch device |
| CN102055142A (en) * | 2009-11-04 | 2011-05-11 | 厦门科力特电气有限公司 | Novel integrated combined electrical appliance |
| CN102780171A (en) * | 2012-07-30 | 2012-11-14 | 日升集团有限公司 | Small-sized vacuum ring main unit |
| CN104577747A (en) * | 2014-12-10 | 2015-04-29 | 江苏德春电力科技有限公司 | Switch cabinet integrated to modular smart power grid |
| CN108922816A (en) * | 2018-07-10 | 2018-11-30 | 珠海南自电气***工程有限公司 | Earthed system is isolated in sextupole traction rectifier transformer |
| CN111404035A (en) * | 2020-04-28 | 2020-07-10 | 江苏神一电气有限公司 | Side-mounted high-voltage combined electrical apparatus |
-
2003
- 2003-09-19 CN CN 03146888 patent/CN1278465C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100461567C (en) * | 2005-04-04 | 2009-02-11 | 沈阳昊诚电气设备有限公司 | Small size vacuum loading switch cabinet |
| CN100546137C (en) * | 2007-02-12 | 2009-09-30 | 常州太平洋电力设备(集团)有限公司 | Single phase gas insulation switch device |
| WO2009003345A1 (en) * | 2007-07-05 | 2009-01-08 | Beijing Sojo Electric Co., Ltd. | Solid insulation full-closed loop networt cabinet |
| CN102055142A (en) * | 2009-11-04 | 2011-05-11 | 厦门科力特电气有限公司 | Novel integrated combined electrical appliance |
| CN102055142B (en) * | 2009-11-04 | 2014-03-05 | 厦门科力特电气有限公司 | Integrated combined electrical appliance |
| CN102780171A (en) * | 2012-07-30 | 2012-11-14 | 日升集团有限公司 | Small-sized vacuum ring main unit |
| CN102780171B (en) * | 2012-07-30 | 2015-04-08 | 日升集团有限公司 | Small-sized vacuum ring main unit |
| CN104577747A (en) * | 2014-12-10 | 2015-04-29 | 江苏德春电力科技有限公司 | Switch cabinet integrated to modular smart power grid |
| CN104577747B (en) * | 2014-12-10 | 2017-02-22 | 江苏德春电力科技股份有限公司 | Switch cabinet integrated to modular smart power grid |
| CN108922816A (en) * | 2018-07-10 | 2018-11-30 | 珠海南自电气***工程有限公司 | Earthed system is isolated in sextupole traction rectifier transformer |
| CN111404035A (en) * | 2020-04-28 | 2020-07-10 | 江苏神一电气有限公司 | Side-mounted high-voltage combined electrical apparatus |
| CN111404035B (en) * | 2020-04-28 | 2024-04-16 | 江苏神一电气有限公司 | Side-mounted high-voltage combined electrical apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1278465C (en) | 2006-10-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2836279Y (en) | 12KV indoor AC high-voltage sulfur hexafluoride ring network switchgear | |
| CN1047695C (en) | Gas isolated SF6 switch with bus unit and metal shell sealing | |
| TWI505589B (en) | Switchgear and switchgear assembly method | |
| CN103311812B (en) | Combined electrical apparatus with isolation switch, vacuum breaker and earthing switch | |
| CN1278465C (en) | Fixed vacuum breaker switch cabinet | |
| CN1481056A (en) | Combined gas insulated on/off means | |
| CN101001005A (en) | Gas insulation switch device | |
| CN2840304Y (en) | Indoor high-voltage three-station isolating switch | |
| CN114156763B (en) | Economical switchgear suitable for wind power | |
| CN203312629U (en) | Combined electric appliance with isolation switch, vacuum circuit breaker and grounding switch | |
| CN201142295Y (en) | Miniature rotary isolation switch | |
| CN2648649Y (en) | Fixed vacuum circuit breaker switch cabinet | |
| CN2646852Y (en) | Three-position disconnecting switch | |
| TW563150B (en) | Gas insulated switch gear | |
| CN201282072Y (en) | Wall hanging type high-voltage vacuum switch | |
| CN106374381B (en) | A kind of air insulation cabinet | |
| CN201797234U (en) | Small-sized vacuum ring main unit | |
| CN205583387U (en) | Solid insulated cabinets's major loop and use solid insulated cabinets of this major loop | |
| JPH044707A (en) | Gas insulation switchgear | |
| CN1795595A (en) | Switch assembly | |
| CN206180469U (en) | Empty gas insulated cabinet | |
| US20040011765A1 (en) | Three-phase encapsulated high-voltage circuit breaker for outdoor use | |
| CN2280991Y (en) | Insulation tube for indoor high-voltage vacuum circuit breaker | |
| CN220753300U (en) | Load switch of inflatable cabinet | |
| JP3170854B2 (en) | Tank type gas circuit breaker with resistance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 361009, Fujian City, Xiamen Province Wo Cai Tong Industrial Development Zone Patentee after: SUCTRN TECHNOLOGY CO., LTD. Address before: 361009, Fujian City, Xiamen Province Wo Cai Tong Industrial Development Zone Patentee before: Xiamen Xiecheng Industrial Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061004 Termination date: 20190919 |