CN101340066B - Solid insulating fully enclosed looped network cabinet - Google Patents
Solid insulating fully enclosed looped network cabinet Download PDFInfo
- Publication number
- CN101340066B CN101340066B CN2007101184360A CN200710118436A CN101340066B CN 101340066 B CN101340066 B CN 101340066B CN 2007101184360 A CN2007101184360 A CN 2007101184360A CN 200710118436 A CN200710118436 A CN 200710118436A CN 101340066 B CN101340066 B CN 101340066B
- Authority
- CN
- China
- Prior art keywords
- housing
- power transmission
- transmission shaft
- looped network
- fully enclosed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007787 solid Substances 0.000 title claims abstract description 30
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- 239000010949 copper Substances 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003822 epoxy resin Substances 0.000 claims abstract description 9
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 9
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 24
- 238000002955 isolation Methods 0.000 claims description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 150000001879 copper Chemical class 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Images
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
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0354—Gas-insulated switchgear comprising a vacuum switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
- H01H2033/6623—Details relating to the encasing or the outside layers of the vacuum switch housings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/022—Details particular to three-phase circuit breakers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
- H01H33/6661—Combination with other type of switch, e.g. for load break switches
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Patch Boards (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a solid insulated totally-enclosed ring main unit, which comprises at least a line of leading-in unit and at least a line of leading-out unit, and each line of switch comprises a 3-phase high-voltage vacuum switch unit. The high-voltage vacuum switch consists of a housing fixed inside a box body, and a main switch and an isolator arranged in the housing, wherein, the housing is made of epoxy resin, and a copper joint pin of the main switch and the outside of a busbar connected with the copper joint pin are coated with silicon rubber layers. The ring main unit of the invention adopts a totally enclosed design, which causes the ring main unit to have smaller volume and compact structure, and to be safe and reliable; the probability of leakage and discharge is low, thus improving the insulation class, and the ring main unit has obvious effect on saving energy and materials; air, moisture, dust and hot and cool air sources are isolated, which effectively retards the corrosion of a power source body, stabilizes the output of supply voltage, decreases the times of the device maintenance, reduces expense cost and prolongs the service life of the ring main unit.
Description
Technical field
The present invention relates to the circuit arrangement of a kind of ac mains or ac distribution network, particularly a kind of solid insulating fully enclosed looped network cabinet.
Background technology
In the prior art, the gas-insulated ring main unit is arranged, adopt gas that high-pressure vacuum switch is sealed insulation; Because the gas SF6 that adopts is carrying out having toxicity behind the arc extinguishing, and easily leaks, metal device casing is long-pending big, to the sealing requirements height, the processing technology complexity causes casing cost height, safeguards and detects complexity, degree of protection is also not enough, and electrified body is exposed, is subjected to the erosion of air, dust, easily causes the corrosion of electrified body, reduce the grade of insulation, very easily caused human casualty accident.
Summary of the invention
The object of the present invention is to provide a kind of nontoxic volume little, technology is simple, the solid insulating fully enclosed looped network cabinet that maintenance cost is low.
To achieve these goals, technical solution of the present invention is: a kind of solid insulating fully enclosed looped network cabinet, comprise at least one road inlet wire and the outlet of at least one road, every road comprises the three-phase high-voltage vacuum switch unit, described high-pressure vacuum switch unit is made up of the main switch and the isolation knife that are fixed on the housing in the casing and be mounted in it, wherein said housing is made by epoxy resin, the copper joint pin of described main switch and the bus that is attached thereto outside coat silastic-layer, described isolation knife comprises connecting lever, isolate pull bar, isolate blade, described isolation pull bar two ends are hinged with described connecting lever and isolation blade respectively, and the described connecting lever other end links to each other with the isolation power transmission shaft.
Solid insulating fully enclosed looped network cabinet of the present invention, the housing wall thickness of wherein said epoxy resin is 10mm-15mm, the silastic-layer wall thickness is 8mm-10mm.
Solid insulating fully enclosed looped network cabinet of the present invention, wherein said epoxy resin are 208L.
Solid insulating fully enclosed looped network cabinet of the present invention, wherein said isolation power transmission shaft is driven by the ground connection power transmission shaft by gear mechanism isolates the power transmission shaft rotation, described ground connection power transmission shaft is fixed on the cover body, described isolation cardan-shaft suspension is on the cover body of described housing, described isolation blade one end is hinged on the binding post of bilateral, the other end opening or closing respectively be fixed on housing on grounding contact or T shape contact link to each other.
Solid insulating fully enclosed looped network cabinet of the present invention, wherein said main switch comprises the power transmission shaft connecting lever, side's pull bar, brace, fairlead, insulated tension pole, the contact spring, sluice separating spring, double threaded screw, vacuum bubbles and be installed in wherein moving contact and fixed contact, the copper joint pin, described sluice separating spring one end and square pull bar are fixed together, the other end is fixed on the track frame that is welded on the housings support plate, power transmission shaft connecting lever one headgear is connected to power transmission shaft, on the other end side of the being hinged on pull bar, circular shaft in side's pull bar slotted hole is hinged with brace, the other end of brace is connected with screw rod, screw flight connects fairlead, the guide post of insulated tension pole upper end extend in the fairlead and by fairlead and leads, the insulated tension pole other end is connected with double threaded screw, the contact spring is housed between fairlead and the insulated tension pole, the bottom of double threaded screw is connected with moving contact, and fixed contact is connected with the copper joint pin, and moving contact and fixed contact are located in the vacuum bubbles.
Insulated tension pole in the solid insulating fully enclosed looped network cabinet of the present invention, wherein said main switch is with several falope rings that silicon rubber is made outward.
Solid insulating fully enclosed looped network cabinet of the present invention, the wherein layer of silica gel that has one deck and housing to be bonded together around the outer wall of vacuum bubbles.
After adopting such scheme, solid insulating fully enclosed looped network cabinet of the present invention owing to adopted totally-enclosed solid encapsulation high-pressure vacuum switch, can not produce creepage phenomenon, thereby improved the grade of insulation, on fail safe and energy savings performance, significant effect is arranged, owing to completely cut off air, aqueous vapor, dust and cold and hot source of the gas, the corrosion that has slowed down power source body effectively, stablized the output of supply voltage, the maintenance times of minimizing equipment reduces expense cost, has prolonged the useful life of ring main unit; Accomplish visual, have the sense of security, obtain very high economic benefit.
Other details of solid insulation ring main unit of the present invention and characteristics can just can be cheer and bright by reading the hereinafter auspicious in conjunction with the accompanying drawings embodiment that adds description.
Description of drawings
Fig. 1 is the overall pattern of solid insulating fully enclosed looped network cabinet of the present invention;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the single high-pressure vacuum switch group structural representation of solid insulating fully enclosed looped network cabinet of the present invention;
Fig. 5 is the end view of Fig. 4.
Embodiment
Be illustrated in figure 1 as solid insulating fully enclosed looped network cabinet overall pattern of the present invention, it comprises three road high-pressure vacuum switchs, in conjunction with Fig. 2, ring main unit upward view shown in Figure 3 and the vertical view of ring main unit, the cabling mode of solid insulation ring main unit bus as can be seen, high-pressure vacuum switch 1 is made up of the main switch 3 and the isolation knife 4 that are fixed on the housing 2 in the casing and be contained in the housing 2, housing 2 wall thickness 10mm, housing 2 is made by 208L epoxy resin.
In conjunction with Fig. 4 and single high-pressure vacuum switch group structural representation shown in Figure 5, main switch 3 comprises power transmission shaft connecting lever 31, side's pull bar 28, brace 32, fairlead 24, insulated tension pole 21, contact spring 25, sluice separating spring 26, double threaded screw 27, vacuum bubbles 18 and be installed in wherein moving contact 29, fixed contact 35 and copper joint pin 6, be with several falope rings 37 that silicon rubber is made outside the insulated tension pole 21, sluice separating spring 26 1 ends and square pull bar 28 are fixed together, the other end is fixed on the track frame that is welded on the housings support plate on 22, power transmission shaft connecting lever 31 1 headgears are connected to isolates square shaft 38, on the other end side of the being hinged on pull bar 28, circular shaft on side's pull bar 28 is hinged with brace 32, the other end of brace 32 is connected with screw rod, screw flight connects fairlead 24, the guide post 34 of insulated tension pole 21 upper ends extend in the fairlead 24 and by fairlead and leads, insulated tension pole 21 other ends are connected with double threaded screw 27, between fairlead 24 and the insulated tension pole 21 contact spring 25 is housed, the bottom of double threaded screw 27 is connected with moving contact 29, fixed contact 35 is connected with copper joint pin 6 one ends, moving contact 29 and fixed contact 35 all are arranged in the vacuum bubbles 18, and one deck layer of silica gel 8 is arranged around the inwall of vacuum bubbles 18.The other end of copper joint pin 6 is connected with bus, and this copper joint pin 6 and bus 7 outsides are coated with silastic-layer 8, and these silastic-layer 8 wall thickness are 8mm.Isolation knife 4 comprises connecting lever 9, isolates pull bar 10 and isolates blade 11, it is hinged with connecting lever 9 and isolation blade 11 respectively to isolate pull bar 10 two ends, the other end of connecting lever 9 links to each other with isolation power transmission shaft 12, isolate power transmission shaft 12 and drive its rotation by power transmission shaft 14 by gear mechanism 13, power transmission shaft 14 is fixed on the cover body 23, isolating power transmission shaft 12 is bearing on the cover body 23 of housing 2, isolate blade 11 1 ends and be hinged on the binding post 33 of bilateral, the other end opening or closing respectively be fixed on housing 2 on grounding contact 16 and T shape contact 17 link to each other.
The high-pressure vacuum switch operation principle of solid insulation ring main unit of the present invention is: when the moving contact 29 of main switch 3 disconnected with fixed contact 35, main switch 3 disconnected, and isolated blade 11 actions, and it is connected from being connected with grounding contact 16 to turn to T shape contact 17; Turn to after grounding contact 16 is connected from being connected with T shape contact 17 when isolating blade 11, main switch 3 closes, and its moving contact 29 is connected with fixed contact 35, begins to switch on.
Solid insulating fully enclosed looped network cabinet of the present invention, owing to adopted totally-enclosed solid encapsulation high-pressure vacuum switch 1, its drive mechanism is simple, and it is little to take up room, and flexible movements are convenient to install and the debugging maintenance; Outside isolating pull bar 10, be with several falope rings 37 that silicon rubber is made, increased the insulation property of isolating pull bar 10, can not produce creepage phenomenon, thereby improved the grade of insulation, on fail safe and energy savings performance, significant effect is arranged; And housing 2 adopts epoxy resin, copper joint pin 6, the bus 7 outer and vacuum bubbles 18 outer silica gel that all apply, therefore the high-pressure vacuum switch 1 of solid insulating fully enclosed looped network cabinet of the present invention has completely cut off air, aqueous vapor, dust and cold and hot source of the gas, slowed down the corrosion of power source body effectively, stablized the output of supply voltage, the maintenance times of minimizing equipment, reduce expense cost, prolonged the useful life of ring main unit; Accomplish visual, have the sense of security, obtain very high economic benefit.
All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all comprise within the scope of the present invention.
Claims (7)
1. solid insulating fully enclosed looped network cabinet, comprise at least one road inlet wire and the outlet of at least one road, every road comprises three-phase high-voltage vacuum switch unit (1), described high-pressure vacuum switch unit (1) is formed by being fixed on housing (2) in the casing and the main switch (3) that is mounted in it and isolation knife (4), it is characterized in that: described housing (2) is made by epoxy resin, the copper joint pin (6) of described main switch (3) and the bus (7) that is attached thereto outside coat silastic-layer (8), described isolation knife (4) comprises connecting lever (9), isolate pull bar (10), isolate blade (11), described isolation pull bar (10) two ends are hinged with described connecting lever (9) and isolation blade (11) respectively, and described connecting lever (9) other end links to each other with isolation power transmission shaft (12).
2. solid insulating fully enclosed looped network cabinet according to claim 1 is characterized in that: the housing of described epoxy resin (2) wall thickness is 10mm-15mm, and silastic-layer (8) wall thickness is 8mm-10mm.
3. solid insulating fully enclosed looped network cabinet according to claim 2 is characterized in that: described epoxy resin is 208L.
4. according to the described solid insulating fully enclosed looped network cabinet of one of claim 1 to 3, it is characterized in that: described isolation power transmission shaft (12) is driven by ground connection power transmission shaft (14) by gear mechanism (13) isolates power transmission shaft (12) rotation, described ground connection power transmission shaft (14) is fixed on the cover body (23), described isolation power transmission shaft (12) is bearing on the cover body (23) of described housing (2), described isolation blade (11) one ends are hinged on the binding post (33) of bilateral, the other end opening or closing respectively be fixed on housing (2) on grounding contact (16) or T shape contact (17) link to each other.
5. solid insulating fully enclosed looped network cabinet according to claim 4, it is characterized in that: described main switch (3) comprises power transmission shaft connecting lever (31), side's pull bar (28), brace (32), fairlead (24), insulated tension pole (21), contact spring (25), sluice separating spring (26), double threaded screw (27), vacuum bubbles (18) and be installed in wherein moving contact (29) and fixed contact (35), copper joint pin (6), described sluice separating spring (26) one ends and square pull bar (28) are fixed together, the other end is fixed on the track frame (22) that is welded on housing (2) supporting bracket, power transmission shaft connecting lever (31) one headgears are connected to power transmission shaft (38), on the other end side of the being hinged on pull bar (28), the same brace of circular shaft (32) in side's pull bar (28) slotted hole is hinged, the other end of brace (32) is connected with screw rod, screw flight connects fairlead (24), the guide post (34) of insulated tension pole (21) upper end extend in the fairlead and by fairlead (24) and leads, insulated tension pole (21) other end is connected with double threaded screw (27), between fairlead (24) and the insulated tension pole (21) contact spring (25) is housed, the bottom of double threaded screw (27) is connected with moving contact (29), fixed contact (35) is connected with copper joint pin (6), and moving contact (29) and fixed contact (35) are located in the vacuum bubbles (18).
6. solid insulating fully enclosed looped network cabinet according to claim 5 is characterized in that: be with several falope rings (37) that silicon rubber is made outside the insulated tension pole (21) in the described main switch (3).
7. solid insulating fully enclosed looped network cabinet according to claim 6 is characterized in that: the layer of silica gel (8) that has one deck and housing (2) to be bonded together around the outer wall of vacuum bubbles (18).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101184360A CN101340066B (en) | 2007-07-05 | 2007-07-05 | Solid insulating fully enclosed looped network cabinet |
| PCT/CN2007/070675 WO2009003345A1 (en) | 2007-07-05 | 2007-09-12 | Solid insulation full-closed loop networt cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101184360A CN101340066B (en) | 2007-07-05 | 2007-07-05 | Solid insulating fully enclosed looped network cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101340066A CN101340066A (en) | 2009-01-07 |
| CN101340066B true CN101340066B (en) | 2010-09-29 |
Family
ID=40214065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101184360A Active CN101340066B (en) | 2007-07-05 | 2007-07-05 | Solid insulating fully enclosed looped network cabinet |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101340066B (en) |
| WO (1) | WO2009003345A1 (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728781B (en) * | 2009-12-16 | 2012-06-13 | 北京合纵科技股份有限公司 | Solid isolated vacuum ring main unit |
| CN101847838B (en) * | 2010-06-22 | 2014-01-08 | 北京双杰电气股份有限公司 | 24kV solid insulated fully-closed switch combined electrical appliance |
| CN102136682A (en) * | 2010-12-29 | 2011-07-27 | 常州森源力拓开关有限公司 | Solid insulating switch cabinet |
| CN102222868B (en) * | 2011-06-22 | 2013-07-24 | 上海正昊电力科技有限公司 | Solid insulating vacuum ring network cabinet |
| CN102522713B (en) * | 2011-12-29 | 2015-01-07 | 北京双杰电气股份有限公司 | Three-station solid insulating full-closed ring main unit |
| CN102437518B (en) * | 2011-12-29 | 2014-10-08 | 北京双杰电气股份有限公司 | Three-station solid insulating fully-sealed switch grounding mechanism |
| CN102545089B (en) * | 2012-02-20 | 2015-08-19 | 北京科力恒久电力技术股份有限公司 | Fully closed solid insulated switch insulating cover |
| EP2645395B1 (en) * | 2012-03-26 | 2014-11-12 | ABB Technology AG | An electric switching device and related electric apparatus |
| CN102761072A (en) * | 2012-07-27 | 2012-10-31 | 无锡市凯立电器有限公司 | Solid insulated load switch-fuse combined electric appliance cabinet |
| CN203134677U (en) | 2012-12-25 | 2013-08-14 | 北京华东森源电气有限责任公司 | Insulating cylinder and main loop structure adopting same |
| CN103151723A (en) * | 2013-04-07 | 2013-06-12 | 深圳市金博联电力技术有限公司 | Completely-sealed and complete-solid insulation ring main unit |
| CN103280728B (en) * | 2013-06-21 | 2015-06-24 | 许昌华元泰电气科技有限公司 | Intelligent solid insulating metal-enclosed switchgear |
| CN104242137A (en) * | 2013-11-15 | 2014-12-24 | 宏秀电气有限公司 | Solid ring main unit vacuum assembly |
| CN104505284B (en) * | 2014-12-10 | 2017-03-15 | 北京双杰电气股份有限公司 | Bidirectional load switchgear |
| CN105719894A (en) * | 2016-03-29 | 2016-06-29 | 西安森源配电自动化设备有限公司 | Indoor high-voltage alternating-current isolating load switch |
| CN105719897A (en) * | 2016-03-29 | 2016-06-29 | 西安森源配电自动化设备有限公司 | Indoor high-voltage alternating-current isolating circuit breaker |
| CN106208387B (en) * | 2016-08-30 | 2018-06-22 | 温州电力设计有限公司 | A kind of intelligent distribution system |
| CN106208067B (en) * | 2016-08-30 | 2018-06-22 | 温州电力设计有限公司 | A kind of double loop anti-harmonic capacitor |
| CN107765044B (en) * | 2017-11-03 | 2023-09-26 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Change-over transformer temperature rise test is with change-over switch device |
| CN108134337A (en) * | 2017-12-27 | 2018-06-08 | 上海正昊电力科技有限公司 | Breaker module and the environmentally friendly gas-insulated ring network cabinet for including it |
| CN109360765A (en) * | 2018-11-16 | 2019-02-19 | 湖北上科电气有限公司 | A kind of isolation knife device for vacuum load switch |
| CN110768153B (en) * | 2019-11-07 | 2024-06-11 | 清远市新能电力工程有限公司 | Fixed high-voltage ring main unit structure of lower median ground sword |
| JP6877515B1 (en) * | 2019-11-27 | 2021-05-26 | 三菱電機株式会社 | Manufacturing method of grounding device, switchboard and grounding device |
| CN112509848B (en) * | 2020-11-27 | 2023-11-17 | 河南平高通用电气有限公司 | Electric operating device of grounding switch for ring main unit test |
| EP4443462A1 (en) * | 2023-04-03 | 2024-10-09 | Eaton Intelligent Power Limited | Compact switching apparatus |
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| EP1109277A3 (en) * | 1999-12-18 | 2002-04-10 | ABB PATENT GmbH | Coupling element for two, mounted side by side, installation apparatuses, and method for the connection of installation apparatuses |
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| CN201051616Y (en) * | 2007-07-05 | 2008-04-23 | 北京双杰配电自动化设备有限公司 | Solid insulation full enclosed loop cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1278465C (en) * | 2003-09-19 | 2006-10-04 | 厦门协成实业有限公司 | Fixed vacuum breaker switch cabinet |
| JP4660303B2 (en) * | 2005-07-12 | 2011-03-30 | 株式会社東芝 | Solid insulation switchgear |
| CN2836279Y (en) * | 2005-07-14 | 2006-11-08 | 杭州电器开关有限公司 | 12KV indoor AC high-voltage sulfur hexafluoride ring network switchgear |
| CN2867671Y (en) * | 2006-01-05 | 2007-02-07 | 镇江龙源电力科技有限公司 | Whole-solid insulating metal enclosed switch device |
-
2007
- 2007-07-05 CN CN2007101184360A patent/CN101340066B/en active Active
- 2007-09-12 WO PCT/CN2007/070675 patent/WO2009003345A1/en active Application Filing
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|---|---|---|---|---|
| EP1109277A3 (en) * | 1999-12-18 | 2002-04-10 | ABB PATENT GmbH | Coupling element for two, mounted side by side, installation apparatuses, and method for the connection of installation apparatuses |
| CN2788420Y (en) * | 2004-04-03 | 2006-06-14 | 深圳市沃尔电气有限公司 | Novel indoor and outdoor circulating net cabinet |
| CN201051616Y (en) * | 2007-07-05 | 2008-04-23 | 北京双杰配电自动化设备有限公司 | Solid insulation full enclosed loop cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101340066A (en) | 2009-01-07 |
| WO2009003345A1 (en) | 2009-01-08 |
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