CN101345156A - Demarcation switch - Google Patents
Demarcation switch Download PDFInfo
- Publication number
- CN101345156A CN101345156A CNA2007100689118A CN200710068911A CN101345156A CN 101345156 A CN101345156 A CN 101345156A CN A2007100689118 A CNA2007100689118 A CN A2007100689118A CN 200710068911 A CN200710068911 A CN 200710068911A CN 101345156 A CN101345156 A CN 101345156A
- Authority
- CN
- China
- Prior art keywords
- electrically connected
- housing
- transformer
- demarcation switch
- switch according
- 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
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000002955 isolation Methods 0.000 claims description 31
- 230000004888 barrier function Effects 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 8
- 229920002379 silicone rubber Polymers 0.000 claims description 8
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 6
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 claims description 5
- 229910018503 SF6 Inorganic materials 0.000 claims description 4
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract 9
- 230000007935 neutral effect Effects 0.000 description 7
- 244000000626 Daucus carota Species 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 235000005770 birds nest Nutrition 0.000 description 6
- 229910052573 porcelain Inorganic materials 0.000 description 6
- 235000005765 wild carrot Nutrition 0.000 description 6
- 241000271566 Aves Species 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Abstract
The invention discloses a opening switch, comprising a shell, three wire-in columns and three wire-out columns arranged on the shell, and three arc extinguish chambers, a separation mechanism, a tripping mechanism, a current transformer, a voltage transformer and a zero sequence sensor which are arranged in the shell; the separation mechanism comprises a separation rotation shaft and three separation cutters which are relatively and fixedly arranged with the separation rotation shaft and are mutually insulated; the separation cutter rotates by a certain angle under the driving of the separation rotation shaft so as to realize the electric connection or disconnection of the separation cutter and the wire-in column; the tripping mechanism comprises a mainshaft and three movable contacts which are mutually insulated; under the driving of the mainshaft, all movable contacts carry out the reciprocating motion in the arc extinguish chamber so as to realize the electric connection or disconnection of the movable contact and the wire-out column; the separation cutter and the wire-in joint of the zero sequence transformer are electrically connected with each other; the movable contact and the wire-out joint of the zero sequence transformer are electrically connected with each other. The opening switch of the invention has the functions of unbalanced phases, small current grounding and electric leakage detection.
Description
Technical field
The invention belongs to High-Voltage Electrical Appliances unit switch technical field, be specifically related to a kind of demarcation switch.
Background technology
For supply network, the safe power supply of 10KV feed outlet is very important in the major network main system.But, 10KV feeder line characteristics are that structure is various, the accident pilosity, particularly also there is a large amount of overhead transmission lines in city suburbs and remote districts, these overhead transmission lines all are multipoint lines often, and security reliability is poor, runs into bad weathers such as blowing and raining, ground connection and short trouble take place frequently, and have had a strong impact on the safe and reliable power supply of electrical network.Along with increasing considerably of urban and rural power grids construction and transformation, inquire into the application technology means, solve this type of problem and be very important.
(1) the line construction complex accident is searched difficulty.User's special line only is with one or two branch line, and the circuit that has is that T connects many branch lines or many transformers are radial; The circuit that has is short to tens meters, and the circuit that has reaches tens kms; The overhead transmission line that has is crossed over mountain after mountain difficult in maintenance, and the distribution transformer that has is aging serious; The all fronts that have are built on stilts, have plenty of the cable aerial mixed line; Some overhead transmission line has cable user temporarily, has interim case change.In a single day overhead transmission line breaks down and searches difficulty, particularly when circuit generation single-phase earthing, owing to the fault point is difficult to determine, has often incured loss through delay accident treatment, causes fault to enlarge, and is further development of phase fault, perhaps damages electric equipment.
(2) the route protection configuration is simple relatively.Overcurrent, quick-break, reclosing protection are generally only disposed in the protection of 10kV overhead transmission line, dispose two sections zero-sequenceprotections in the low resistance grounding system again.Therefore, for guaranteeing the selectivity and the sensitivity of relaying protection, the whole piece circuit all is within the protection range, when requiring the line end fault, protection should have enough sensitivity.Like this, will have a power failure, and the protection of circuit the superior and the subordinate is ladder and cooperatively interacts, do not protected the differential time, can only lose the selectivity failure break and cause breaking completely at line end owing to place's fault cause completely.
The structure of the demarcation switch that uses comprises housing at present, be fixed on three porcelain knob outlet column of housing left-hand end and be fixed on three porcelain knob inlet wire posts of case top, be arranged on three arc control device, interrupter, tripping mechanism in the housing, be used for the current transformer that electric current is sampled and be used for as control circuit power source voltage instrument transformer; Described interrupter comprises that isolating rotating shaft and three is provided with and isolation knife insulated from each other with described isolation rotating shaft relative fixed, described isolation knife being electrically connected or disconnection with realization isolation knife and inlet wire post that turn an angle under the drive of isolating rotating shaft; Described tripping mechanism comprises main shaft and three moving contacts insulated from each other, and described each moving contact is done back and forth movement to realize being electrically connected or disconnection of moving contact and outlet column in arc control device under the drive of main shaft, and described voltage transformer is arranged on outside the housing.
The shortcoming of this kind demarcation switch is: (1) this kind demarcation switch does not have the detection and the defencive function of alternate unbalanced, small current neutral grounding and electric leakage, and alternate unbalanced, small current neutral grounding or leak current fault are the accidents that demarcation switch mostly occurs.(2) inlet wire post and outlet column are the porcelain knob binding post, in the process of transportation and carrying, the porcelain knob binding post are damaged; If be used for the bigger area of day and night temperature in addition, make porcelain knob cracked because of expanding with heat and contract with cold easily.(3) outboard end of porcelain knob binding post is provided with the exposed aerial binding post that is electrically connected with external cable of being used for, and during use the electric power cable joint is fixed on the binding post; But find in the practice that a lot of birds are liked doing nest on the housing on the demarcation switch, bird's nest can conduct electricity in rainy weather, and some bigger bird's nest can be because of being short-circuited or leak current fault when rainy on the binding post that covers binding post.(4) because voltage transformer is arranged on outside the housing, cause volume bigger, install and use inconvenience, cost is increased.
Summary of the invention
The purpose of this invention is to provide a kind of demarcation switch with alternate unbalanced, small current neutral grounding and detection of electrical leakage function.
The technical scheme that realizes the object of the invention is: a kind of demarcation switch, comprise housing, be arranged on three inlet wire posts and three outlet column on the housing, be arranged on three arc control device, interrupter, tripping mechanism in the housing, be used for the current transformer that electric current is sampled and be used for as control circuit power source voltage instrument transformer; Described interrupter comprises that isolating rotating shaft and three is provided with and isolation knife insulated from each other with described isolation rotating shaft relative fixed, described isolation knife being electrically connected or disconnection with realization isolation knife and inlet wire post that turn an angle under the drive of isolating rotating shaft; Described tripping mechanism comprises main shaft and three moving contacts insulated from each other, and described each moving contact is done back and forth movement to realize being electrically connected or disconnection of moving contact and outlet column in arc control device under the drive of main shaft; Its design feature is: this demarcation switch also comprises zero-sequence transformer, and the lead-in line joint of described isolation knife and zero-sequence transformer is electrically connected, and the wire terminal that goes out of described moving contact and zero-sequence transformer is electrically connected.
Described inlet wire post is arranged on the housing left-hand end; Described outlet column is arranged on the housing right-hand end; The quantity of described current transformer is two or three.
Described arc control device are vacuum interrupter.
Described each outlet column and each inlet wire post include resin insulating barrier, be positioned at the outer rubber full skirt of resin insulating barrier, be positioned at the cable that the conducting rod of resin insulating barrier and being used for of being electrically connected with conducting rod are electrically connected with extraneous power line, described cable stretches out 1 meter to 5 meters of rubber full skirt, and described periphery of stretching out the cable of rubber full skirt is provided with the insulated enclosure layer.
Described resin insulating barrier preferably adopts the epoxy resins insulation layer, and described rubber full skirt preferably adopts the silicon rubber full skirt, and described insulated enclosure layer preferably adopts silastic-layer.
Described zero-sequence transformer is to have three lead-in line joints and three zero sequence current mutual inductors that go out wire terminal, and each lead-in line joint all is electrically connected with an isolation knife, respectively goes out wire terminal and all is electrically connected with a moving contact; Described zero-sequence transformer is arranged in the housing.
Described each lead-in line joint all is electrically connected with an isolation knife by being flexible coupling, and respectively goes out wire terminal and all is electrically connected with a moving contact by being flexible coupling.
Described voltage transformer is arranged on enclosure interior.
Described case top is provided with suspension gear.
Be filled with sulfur hexafluoride gas in the described housing.
The present invention has positive effect: (1) the present invention is owing to be provided with the zero-sequence transformer that is electrically connected with isolation knife and moving contact; make the present invention can have alternate unbalanced, small current neutral grounding and detection of electrical leakage function, and then can make product of the present invention have alternate unbalanced, small current neutral grounding and creepage protection function by the control of extraneous control circuit.(2) demarcation switch of the present invention is when user's branch line breaks down, but automatic brake separating gets rid of the fault branch line, has only failed subs criber to have a power failure, but the still safe operation of the user of other branch on transformer station and the feeder line.(3) the present invention
By inlet wire post and binding post being arranged on the left and right sides of housing, stay the suspension apparatus that the top is provided for hanging, such structural design can make the present invention needs hang carrying and the operation of hanging when installing comparatively convenient, fast.(4) the combined type inlet wire post of the present invention by being made by epoxy resin layer and silicon rubber full skirt can play cushioning effect when bumping, to the greatest extent farthest each binding post of protection.(5) when adopting the cable that is provided with the insulated enclosure layer, each inlet wire post of the present invention and each outlet column be used for being electrically connected with extraneous power line, like this when birds are cooked nest on demarcation switch of the present invention, because the cable of sealed insulation stretches out 1 meter to 5 meters of each binding post, make insulation distance between each binding post much larger than the width of various bird's nests, can effectively avoid the short circuit or the leak current fault that cause because of bird's nest.(6) the present invention is arranged on voltage transformer in the housing, makes product of the present invention have the less advantage in the space of occupation of land, and fitting operation is also comparatively convenient.(7) the present invention can pour sulfur hexafluoride gas in housing, because sulphur hexafluoride has electrical insulation properties preferably, the spacing distance between each parts in the housing is reduced, and further reduces the shared volume of the present invention.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is that the B of Fig. 1 is to view.
Fig. 4 is the sectional structure schematic diagram of demarcation switch shown in Figure 1.
Fig. 5 is the structural representation of the isolation knife in the demarcation switch shown in Figure 4 when being electrically connected with the inlet wire post.
Fig. 6 is the structural representation that disassembles Central Shanxi Plain inlet wire post shown in Figure 4.
Be labeled as shown in the accompanying drawing: housing 1, inlet wire post 2, resin insulating barrier 21, full skirt 22, conducting rod 23, cable 24 insulated enclosure layers 25, outlet column 3, arc control device 4, tripping mechanism 5, main shaft 51, moving contact 52, interrupter 6 is isolated rotating shaft 61, isolation knife 62, current transformer 7, voltage transformer 8, zero-sequence transformer 9, lead-in line joint 91 goes out wire terminal 92, suspension gear 100.
Embodiment
(embodiment 1)
Fig. 1 to Fig. 6 has shown one embodiment of the present invention.Wherein, Fig. 1 is a structural representation of the present invention.Fig. 2 is that the A of Fig. 1 is to view.Fig. 3 is that the B of Fig. 1 is to view.Fig. 4 is the sectional structure schematic diagram of demarcation switch shown in Figure 1.Fig. 5 is the structural representation of the isolation knife in the demarcation switch shown in Figure 4 when being electrically connected with the inlet wire post.Fig. 6 is the structural representation that disassembles Central Shanxi Plain inlet wire post shown in Figure 4.
Present embodiment is a kind of demarcation switch that is used for three-phase circuit, see Fig. 1 to Fig. 4, comprise housing 1, be fixed on three inlet wire posts 2 of housing 1 left-hand end and be fixed on three outlet column 3 of housing 1 right-hand end, the current transformer 7 that be arranged on three arc control device 4, interrupter 6, tripping mechanism 5 in the housing 1, is used for electric current is sampled,, be used for as control circuit power source voltage instrument transformer 8 and zero-sequence transformer 9; Described interrupter 6 comprises isolates rotating shaft 61 and three and described isolation rotating shaft 61 relative fixed settings and isolation knife 62 insulated from each other; Described tripping mechanism 5 comprises main shaft 51 and three moving contacts insulated from each other 52, and described each moving contact 52 is being done back and forth movement to realize being electrically connected or disconnection of moving contact 52 and outlet column 3 in arc control device 4 under the drive of main shaft 51; The lead-in line joint 91 of described isolation knife 62 and zero-sequence transformer 9 is electrically connected, and the wire terminal 92 that goes out of described moving contact 52 and zero-sequence transformer 9 is electrically connected.
Described arc control device 4 are vacuum interrupter.
The quantity of described current transformer 7 is two, is separately fixed on the outlet column 3.In concrete the manufacturing,, three current transformers can be set also as the fruit volume permission.
Zero-sequence transformer 9 in the present embodiment is for having three lead-in line joints 91 and three zero sequence current mutual inductors that go out wire terminal 92, each lead-in line joint 91 all is fixed contacts made of copper, each fixed contact all is flexible coupling with an isolation knife 62, respectively going out wire terminal 92 all is fixed contacts made of copper, and each fixed contact all is flexible coupling with a moving contact 52.Described voltage transformer 8 is arranged on housing 9 inside, compares with traditional demarcation switch, and institute takes up space less.
Described housing 1 top is provided with suspension gear 100, and the overhung construction of present embodiment comprises hook and suspended cross-beam.
See Fig. 6, described inlet wire post 2 includes epoxy resins insulation layer 21, be positioned at the outer silicon rubber full skirt 22 of epoxy resins insulation layer 21, be positioned at the cable 24 that the conducting rod 23 of epoxy resins insulation layer 21 and being used for of being electrically connected with conducting rod 23 are electrically connected with extraneous power line, described cable 24 stretches out 22 two meters of silicon rubber full skirts, and described periphery of stretching out the cable of silicon rubber full skirt 22 is provided with the insulated enclosure layer 25 that silicon rubber is made.
Present embodiment is owing to be provided with the zero-sequence transformer that is electrically connected with isolation knife and moving contact; make present embodiment can have alternate unbalanced, small current neutral grounding and detection of electrical leakage function, and then can make the present embodiment product have alternate unbalanced, small current neutral grounding and creepage protection function by the control of extraneous control circuit.
The demarcation switch of present embodiment is when user's branch line breaks down, but automatic brake separating gets rid of the fault branch line, has only failed subs criber to have a power failure, but the still safe operation of the user of other branch on transformer station and the feeder line.
Present embodiment stays the suspension apparatus that the top is provided for hanging by inlet wire post and binding post being arranged on the left and right sides of housing, such structural design can make present embodiment needs hang carrying and the operation of hanging when installing comparatively convenient, fast.
The combined type inlet wire post of present embodiment by being made by epoxy resin layer and silicon rubber full skirt can play cushioning effect when bumping, to the greatest extent farthest each binding post of protection.
When each inlet wire post of present embodiment and each outlet column adopt the cable that is provided with the insulated enclosure layer to be used for being electrically connected with extraneous power line, like this when birds are cooked nest on the present embodiment demarcation switch, because the cable of sealed insulation stretches out 1 meter to 5 meters of each binding post, make insulation distance between each binding post much larger than the width of various bird's nests, can effectively avoid the short circuit or the leak current fault that cause because of bird's nest.
Present embodiment is arranged on voltage transformer in the housing, makes the present embodiment product have the less advantage in the space of occupation of land, and fitting operation is also comparatively convenient.
(embodiment 2)
Present embodiment is substantially the same manner as Example 1, and difference is: be filled with sulfur hexafluoride gas in the described housing 1.Because sulphur hexafluoride has electrical insulation properties preferably, the spacing distance between each parts in the housing is reduced, further reduce the shared volume of present embodiment.
Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be qualification to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (10)
1, a kind of demarcation switch, comprise housing (1), be arranged on three inlet wire posts (2) and three outlet column (3) on the housing (1), be arranged on three arc control device (4), interrupter (6), tripping mechanism (5) in the housing (1), be used for the current transformer (7) that electric current is sampled and be used for as control circuit power source voltage instrument transformer (8); Described interrupter (6) comprises isolates rotating shaft (61) and three and described isolation rotating shaft (61) relative fixed setting and isolation knife (62) insulated from each other, described isolation knife (62) being electrically connected or disconnection with realization isolation knife (62) and inlet wire post (2) that turn an angle under the drive of isolation rotating shaft (61); Described tripping mechanism (5) comprises main shaft (51) and three moving contacts insulated from each other (52), and described each moving contact (52) is being done back and forth movement to realize being electrically connected or disconnection of moving contact (52) and outlet column (3) in arc control device (4) under the drive of main shaft (51); It is characterized in that: this demarcation switch also comprises zero-sequence transformer (9), and the lead-in line joint (91) of described isolation knife (62) and zero-sequence transformer (9) is electrically connected, and the wire terminal (92) that goes out of described moving contact (52) and zero-sequence transformer (9) is electrically connected.
2, demarcation switch according to claim 1 is characterized in that: described inlet wire post (2) is arranged on housing (1) left-hand end; Described outlet column (3) is arranged on housing (2) right-hand end; The quantity of described current transformer (7) is two or three.
3, demarcation switch according to claim 1 is characterized in that: described arc control device (4) are vacuum interrupter.
4, demarcation switch according to claim 1, it is characterized in that: described each outlet column (3) and each inlet wire post (2) include resin insulating barrier (21), be positioned at the outer rubber full skirt (22) of resin insulating barrier (21), be positioned at the cable (24) that the conducting rod (23) of resin insulating barrier (21) and being used for of being electrically connected with conducting rod (23) are electrically connected with extraneous power line, described cable (24) stretches out (22) 1 meters to 5 meters of rubber full skirts, and described periphery of stretching out the cable of rubber full skirt (22) is provided with insulated enclosure layer (25).
5, demarcation switch according to claim 4 is characterized in that: described resin insulating barrier (21) is an epoxy resins insulation layer (21), and described rubber full skirt (22) is the silicon rubber full skirt; Described insulated enclosure layer (25) is a silastic-layer.
6, demarcation switch according to claim 1, it is characterized in that: described zero-sequence transformer (9) is for having three lead-in line joints (91) and three zero sequence current mutual inductors that go out wire terminal (92), each lead-in line joint (91) all is electrically connected with an isolation knife (62), respectively goes out wire terminal (92) and all is electrically connected with a moving contact (52); Described zero-sequence transformer (9) is arranged in the housing (1).
7, demarcation switch according to claim 1 is characterized in that: described each lead-in line joint (91) all is electrically connected with an isolation knife (62) by being flexible coupling, and respectively goes out wire terminal (92) and all is electrically connected with a moving contact (52) by being flexible coupling.
8, demarcation switch according to claim 1 is characterized in that: described voltage transformer (8) is arranged on housing (9) inside.
9, demarcation switch according to claim 1 is characterized in that: described housing (1) top is provided with suspension gear (100).
10, demarcation switch according to claim 1 is characterized in that: described housing is filled with sulfur hexafluoride gas in (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100689118A CN101345156B (en) | 2007-05-24 | 2007-05-24 | Demarcation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100689118A CN101345156B (en) | 2007-05-24 | 2007-05-24 | Demarcation switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101345156A true CN101345156A (en) | 2009-01-14 |
| CN101345156B CN101345156B (en) | 2011-08-10 |
Family
ID=40247123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100689118A Expired - Fee Related CN101345156B (en) | 2007-05-24 | 2007-05-24 | Demarcation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101345156B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122140A (en) * | 2010-12-24 | 2011-07-13 | 扬州扬开电力控制设备有限公司 | Demarcation switch system |
| CN103474286A (en) * | 2013-08-29 | 2013-12-25 | 浙江博益电气有限公司 | Outdoor high voltage vacuum circuit breaker |
| CN105845491A (en) * | 2016-04-25 | 2016-08-10 | 信尔德科技有限公司 | Intelligent high-voltage dual-power vacuum circuit breaker |
| WO2019029481A1 (en) * | 2017-08-09 | 2019-02-14 | 施耐德电气工业公司 | Electric leakage circuit breaker |
| RU2774982C2 (en) * | 2017-08-09 | 2022-06-24 | Шнейдер Электрик Эндюстри Сас | Circuit breaker at leakage |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1219306C (en) * | 2002-08-06 | 2005-09-14 | 西安前进电器实业有限公司 | Cable lead wire electric porcelain sleeve for high voltage switch |
| EP1538650B1 (en) * | 2003-12-02 | 2017-11-08 | Schneider Electric Energy Manufacturing Italia S.r.l. | Isolator/circuit-breaker device for electric substations |
| CN201069751Y (en) * | 2007-05-24 | 2008-06-04 | 郑文秀 | Boundary switch |
-
2007
- 2007-05-24 CN CN2007100689118A patent/CN101345156B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122140A (en) * | 2010-12-24 | 2011-07-13 | 扬州扬开电力控制设备有限公司 | Demarcation switch system |
| CN103474286A (en) * | 2013-08-29 | 2013-12-25 | 浙江博益电气有限公司 | Outdoor high voltage vacuum circuit breaker |
| CN105845491A (en) * | 2016-04-25 | 2016-08-10 | 信尔德科技有限公司 | Intelligent high-voltage dual-power vacuum circuit breaker |
| WO2019029481A1 (en) * | 2017-08-09 | 2019-02-14 | 施耐德电气工业公司 | Electric leakage circuit breaker |
| GB2579953A (en) * | 2017-08-09 | 2020-07-08 | Schneider Electric Ind Sas | Electric leakage circuit breaker |
| RU2774982C2 (en) * | 2017-08-09 | 2022-06-24 | Шнейдер Электрик Эндюстри Сас | Circuit breaker at leakage |
| GB2579953B (en) * | 2017-08-09 | 2023-05-10 | Schneider Electric Ind Sas | Leakage circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101345156B (en) | 2011-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207474334U (en) | A kind of isolation circuit breakers for dry air insulation ring main unit | |
| CN106848909A (en) | One kind is without isolated switchgear under bin static contact non-SF 6 gas insulative | |
| CN101345156B (en) | Demarcation switch | |
| WO2015043460A1 (en) | High-speed grounding switch and grounding switch assembly unit composed thereof | |
| CN201069751Y (en) | Boundary switch | |
| US9472926B2 (en) | Gas-insulated switchgear arrangement | |
| CN104037011A (en) | Watchdog division load switch | |
| CN103972809B (en) | Dual-breaker DCB type high-voltage combined electrical apparatus | |
| CN202019159U (en) | Intellectualized solid sealing insulation fixed type high-voltage switch cabinet | |
| CN102986100B (en) | There is the switchgear of the single-phase isolation including air and screen | |
| CN203659733U (en) | Outdoor high-voltage demarcation vacuum circuit breaker | |
| CN104051180A (en) | 10kV pole-mounted vacuum load switch | |
| CN201975190U (en) | Bridge connection type shifting multi-function arrester | |
| CN105575720A (en) | Outdoor high-voltage boundary vacuum circuit breaker | |
| CN102227059A (en) | Intelligent solid closed insulating fixed-type high voltage switchgear | |
| CN201681779U (en) | Boundary switch | |
| CN104112999B (en) | A kind of solid insulation ring main unit | |
| CN203086051U (en) | Double-circuit breaker (DCB) type high-voltage composite electric appliance | |
| CN103117189B (en) | A kind of pole and solid insulation ring main unit | |
| CN202749310U (en) | Replaceable built-in voltage transformer high voltage alternating current dividing circuit breaker | |
| CN106654966A (en) | Environment-friendly gas-insulated ring main unit | |
| CN104143464A (en) | Earthing switch assembling unit and high-speed earthing switch | |
| CN201408721Y (en) | Built-in voltage transformer-type high-voltage AC demarcation circuit breaker | |
| CN202797734U (en) | Combination switch cabinet of solid insulation fuse | |
| CN104143451A (en) | High-speed earthing switch and earthing switch assembly unit with same |
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 | ||
| ASS | Succession or assignment of patent right |
Owner name: HONGXIU ELECTRIC (ANHUI) CO., LTD. Free format text: FORMER OWNER: ZHENG WENXIU Effective date: 20120301 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 325604 WENZHOU, ZHEJIANG PROVINCE TO: 239000 CHUZHOU, ANHUI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120301 Address after: 239000 Industrial Zone, Langya District, Anhui, Chuzhou Patentee after: Hongxiu Electrical (Anhui) Co.,Ltd. Address before: 325604, Zhenxing Road, Xinguang Industrial Zone, Yueqing, Zhejiang, Liushi 8, China Patentee before: Zheng Wenxiu |
|
| C56 | Change in the name or address of the patentee |
Owner name: XINERDE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: HONGXIU ELECTRIC (ANHUI) CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 239000 Century Avenue, Anhui, Chuzhou, No. 677 Patentee after: XINERDE TECHNOLOGY Co.,Ltd. Address before: 239000 Industrial Zone, Langya District, Anhui, Chuzhou Patentee before: Hongxiu Electrical (Anhui) Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Demarcation switch system Effective date of registration: 20171020 Granted publication date: 20110810 Pledgee: Bank of Communications Ltd. Chuzhou branch Pledgor: XINERDE TECHNOLOGY Co.,Ltd. Registration number: 2017340000298 |
|
| 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: 20110810 |