CN104054150B - Switching device for medium voltage switchgear equipment especially loads separating switch - Google Patents
Switching device for medium voltage switchgear equipment especially loads separating switch Download PDFInfo
- Publication number
- CN104054150B CN104054150B CN201380005529.6A CN201380005529A CN104054150B CN 104054150 B CN104054150 B CN 104054150B CN 201380005529 A CN201380005529 A CN 201380005529A CN 104054150 B CN104054150 B CN 104054150B
- Authority
- CN
- China
- Prior art keywords
- contact
- switching device
- current path
- motion
- rotatable movement
- 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.)
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Classifications
-
- 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
-
- 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
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
- H01H33/121—Load break switches
- H01H33/122—Load break switches both breaker and sectionaliser being enclosed, e.g. in SF6-filled container
-
- 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
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
- H01H33/121—Load break switches
- H01H33/125—Load break switches comprising a separate circuit breaker
- H01H33/128—Load break switches comprising a separate circuit breaker being operated by a separate mechanism interlocked with the sectionalising mechanism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
-
- 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
- H01H33/02—Details
- H01H33/022—Details particular to three-phase circuit breakers
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
To form the switching device for especially loading separating switch that can be inexpensively manufactured under cramped construction in particular for medium voltage switchgear equipment,Advise a kind of switching device of especially load separating switch (1) for medium voltage switchgear equipment,The switching device carries the main contact system formed by diametrically opposite first fixed contact (2) and the second fixed contact (3),And by the rotatable motion contact (4) of the rotary support (7) being arranged between the first fixed contact (2) and the second fixed contact (3),Isolating partition is formed so as to the formation primary current path under the first position of rotatable motion contact (4) and under the second place of rotatable movement contact (4),And by the first fixed contact (2),Second fixed contact (3),The auxiliary current path that arc extinguishing contact system (9) and the first sliding contact (15) and the second sliding contact (16) are formed,It is conductively connected with rotatable movement contact (4) with being formed in the anglec of rotation region between first position and the second place of rotatable movement contact (4),So that when rotary motion is incorporated into rotatable movement contact (4) realize flow through switching device alternating current from primary current path to the commutation of auxiliary current path,Wherein rotatable movement contact (4) are with the device (18 for interrupting arc extinguishing contact system (20),19),And the formation of isolating partition is realized in arc extinction and when introducing other rotary motion.
Description
Technical field
The present invention relates to a kind of switching device for medium voltage switchgear equipment, separating switch device is especially loaded.
Background technology
For medium voltage switchgear equipment such load separating switch for example from the A1 of DE 10 2,004 006 476, it is known that
And including main contact system and auxiliary connection branch road, be provided with arc extinguishing contact arrangement to extinguish electric arc in auxiliary connection branch road, and
Separation contact arrangement is provided with to provide resistance to pressure.
The content of the invention
The technical problems to be solved by the invention are to form a kind of switching device of aforementioned type, and the switching device is tight
Gather and can inexpensively manufacture under structure.
According to the present invention, this technical problem is opened by a kind of especially load separating switch for medium voltage switchgear equipment
Close device to solve, the switching device is carried：The master formed by diametrically opposite first fixed contact and the second fixed contact
Contact system, and touched by the rotatable motion of the rotary support being arranged between the first fixed contact and the second fixed contact
Point, so as to the formation primary current path under the first position of rotatable motion contact and in the second of rotatable movement contact
Lower formation isolating partition is put, and by the first fixed contact, the second fixed contact, arc extinguishing contact system and the first sliding contact
The auxiliary current path formed with the second sliding contact, with rotatable movement contact in first position and the second place it
Between anglec of rotation region in formed and be conductively connected with rotatable movement contact so that it is rotary motion is incorporated into rotatable
Motion contact when realize flow through switching device alternating current from primary current path to the commutation of auxiliary current path, wherein rotatable
Motion contact has the device for interrupting arc extinguishing contact system, and is realized in arc extinction and when introducing other rotary motion
The formation of isolating partition.
On the one hand, such switching device has compact structure, because passing through the first fixed contact and the second fixed contact
Diametrically opposed and arrangement rotatable movement contact in-between, realize primary current path and auxiliary current path with
Small structure space is arranged side by side, and mode is the alternating current that will be guided by switching device in rotary motion from principal current road
Commutation of the footpath to auxiliary current path.On the other hand, such switching device has cheap structure, because by being arranged in auxiliary electric current
Arc extinguishing contact system in path so that this arc extinguishing contact system and the first and second sliding contacts and with first and second
The other attachment means of fixed contact can be made up of cheap material, for example, be made up of steel or stainless steel or aluminium etc., because logical
Cross auxiliary current path and only temporarily guide electric current in switching process, until occurring to arrive negative after arc extinguishing in arc extinguishing contact system
Carry separating switch separation point position transfer so that for auxiliary current path material characteristics requirement ratio for primary current path
Material characteristics requirement it is lower.
In favourable construction of the invention, arc extinguishing contact system includes that contact spring is closeable to be connect with passing through
The vacuum switch tube of the system of touching.The contact system of vacuum switch tube is maintained at its closing position by contact spring, as long as
Rotatable movement contact does not act on thereon for interrupting the device of extinguishing arc contact system so that by by arc extinguishing contact system
It is arranged in auxiliary current path and requires nothing more than low spring force especially for contact spring, because by auxiliary current path not
Guiding short circuit current, and vibration is therefore for example also occurred without, the vibration will require that spring force significantly higher is opened with by vacuum
The contact system for closing pipe is maintained at closure state.
In other favourable construction of the invention, device is included for operating by induction element and vacuum switch tube
Motion contact portion pin connection cam disc swing shelf.This class formation is mechanically simple, and is therefore compact
And it is cheap, because only overcoming the small spring force of the contact spring of arc extinguishing contact system to do work by this structure.
In particularly advantageous construction of the invention, rotatable movement contact be formed about 360 ° it is rotatable.With this
Ensure in an advantageous manner, when only rotating in one direction, introduce in a same direction and lead to by by rotary motion
Transfer of the rotatable movement contact from the second place to first position is crossed, the connection process of switching device is performed and without auxiliary electric current
The participation in path and the participation of the vacuum switch tube especially without arc extinguishing contact system so that do not propose to close for vacuum switch tube
In the requirement of the resistance to property connected etc., because connect electric arc being touched in rotatable movement contact and first and second fixation during connection
Lighted between point, this is especially arranged in the shell of the dielectric filling of such as insulating gas or iknsulating liquid by switching device
It is the simple possibility for performing connection process when in vivo.
Brief description of the drawings
The present invention is hereinafter elucidated in more detail with reference to the drawing according to figure and embodiment.Each figure is：
Fig. 1 is the embodiment of the switching device of the invention in first position；
Fig. 2 to Fig. 6 is the switch dress of Fig. 1 in diverse location during switching process and formation isolating partition is performed
Put；
Fig. 7 is the 3-D view of the embodiment of the threephase switch device of the switching device according to Fig. 1；
Fig. 8 is the switching device being connected with the earthed switch in first position of the embodiment according to Fig. 1；With
Fig. 9 is the switching device of Fig. 8, and wherein earthed switch is in the second place.
Specific embodiment
Fig. 1 shows the switching device being applied in medium voltage switchgear equipment of the form with load separating switch 1, described
Switching device is not illustrated in detail in the accompanying drawings, wherein load separating switch 1 can be by the remittance of the first fixed contact 2 and switchgear
Stream bar connection, can be connected by the second fixed contact 3 with the cable connector of medium voltage switchgear equipment.First fixed contact 2 and two is solid
Fixed contact 3 forms the main contact system and primary current path of load separating switch 1 together with rotatable movement contact 4.Motion is touched
Point 4 is formed as knife pair, and including the first knife opposite end 5 and the second knife opposite end 6 and (not shown) in the accompanying drawings in the first knife opposite end 5
And second other between knife opposite end 6 be conductively connected, and the motion contact 4 is in first position in Fig. 1, wherein first
Knife opposite end 5 is conductively connected with the formation of the first fixed contact 2 and the second knife opposite end 6 forms with the second fixed contact 3 and is conductively connected, and makes
Must be flowed through by loading separating switch 1 or realizing electric current by primary current path.Rotatable movement contact 4 is fixed on rotation herein
Turn on bearing 7, in realizing accompanying drawing in the rotary support 7 also the powered motion of driver (not shown) so that rotary support
7 rotations, and it is achieved that the rotation of rotatable movement contact 4.Led by conductive connecting device 8 in the first fixed contact 2
Arc extinguishing contact system 9 is connected to electricly, and the arc extinguishing contact system 9 is by the vacuum with motion contact 11 and fixed contact 12
Switching tube 10 is formed, and wherein arc extinguishing contact system 9 is in closure state in Fig. 1, and mode is contact spring 13 in motion
Apply pressure on contact portion pin 14 to be maintained at the closing position of arc extinguishing contact system 9.The motion contact of arc extinguishing contact system 9
11 are conductively connected with the first sliding contact 15 again.Second sliding contact 16 is conductively connected 17 and second fixed contact by other
3 is conductively connected so that rotary motion is being incorporated into rotary support 7 and rotatable movement contact 4 rotates to contact position
(the wherein first knife opposite end 5 or the second knife opposite end 6 of rotatable movement contact 4 and the first sliding contact 15 or the second sliding contact
16 are conductively connected) after, slided by the arc extinguishing contact system 9, first of the first fixed contact 2, conductive connecting device 8, closure
Contact 15, rotatable movement contact 4, the second sliding contact 16, the fixed contact 3 of conductive connection element 17 and second form auxiliary electricity
Flow path, is such as hereinafter further explained in detail referring to figs. 2 to Fig. 6.There is furthermore provided having on rotatable movement contact 4
The swing shelf 18 of cam disc 19, by the cam disc 19 in 4 rotary motion of rotatable movement contact operable cam disc
20, the cam disc 20 can be rotated to support on the point of rotation 21 and guide rotation by guiding pin 22, which provide guiding
Element 23, the motion contact portion pin 14 for making arc extinguishing contact system 9 by the cam disc 20 of the induction element 23 is moved and will gone out
Arc contact system 9 is opened.Load separating switch 1 is arranged in housing 24 herein, and the housing 24 is with insulating gas or dielectric
What body can be filled, and can fix and medium voltage switchgear equipment can be arranged on for example, by the retaining element for only being marked with drawing reference numeral 25
On.The function of the load separating switch 1 in Fig. 1 is hereinafter explained in detail according to Fig. 1 to Fig. 6.As described above, load is separated
1 is closed in Fig. 1 in its first position, is touched with being fixed by the first fixed contact 2, rotatable movement contact 4 and second
The primary current path that point 3 is formed.When powered motion is incorporated into rotary support 7 to perform switching process and it is final be shape
Into the isolating partition for dielectric separation, the position of Fig. 2 is arrived first at, wherein the first knife opposite end 5 is in and the first fixed contact 2
And be conductively connected with the first sliding contact 15, and the second knife opposite end 6 is in the second fixed contact 3 and is slided with second tactile
Point 16 is conductively connected so that at this moment of the position of Fig. 2, when arc extinguishing contact system 9 close generation from primary current path to
The commutation of auxiliary current path.The position of Fig. 3 is reached when motion is further rotated, wherein the first knife opposite end 5 and the second knife pair
End 6 is only existed in and is conductively connected with the first sliding contact 15 and the second sliding contact 16 so that primary current path is interrupted.In Fig. 3
Position in, swing shelf 18 acted on cam disc 20 with its cam disc 19 so that by cam disc 20 around the point of rotation
21 rotation causes the motion of the motion contact portion pin 14 of arc extinguishing contact system 9 by induction element 23, and the motion overcomes and connects
The spring force of touch pressure spring 13 can be introduced and cause arc extinguishing contact system 9 to be opened so that be opened in vacuum in auxiliary current path
Electric arc, current over-zero of the electric arc in the alternating current guided by switching device are lighted in the arc extinguishing contact system 9 for closing pipe 10
When extinguish.In the position of Fig. 4, opened completely in this arc extinguishing contact system 9, and the arc extinguishing of the opening in vacuum switch tube 10 connects
The electric arc for touching burning in system 9 extinguishes in current over-zero, and the first knife opposite end 5 and the second knife opposite end 6 and the first slip are touched
The sliding contact 16 of point 15 and second is always at being conductively connected, until arc extinguishing process terminates position that is rear and reaching Fig. 5, finally
The position of Fig. 6 is reached when motion is further rotated, wherein rotatable movement contact 4 is in the second place and forms separation position
Put, and electric current is interrupted completely, wherein swing shelf 18 in addition no longer being acted on cam disc 20 with its cam disc 19 so that pass through
The effect of the spring force of contact spring 13, closes the arc extinguishing contact system 9 of auxiliary current path again, and knife opposite end 5 with
And there is enough distances between knife opposite end 6 and between fixed contact 2 and 3 and sliding contact 15 and 16, opened with meeting
Close the dielectric separation condition of device and medium voltage switchgear equipment.
Therefore in other words, in the first position of the on-state for loading separating switch 1 of Fig. 1 and dividing with load for Fig. 6
By in rotary support 7 and therefore in rotatable movement contact 4 between the second place of the isolating partition for being formed for leaving pass 1
It is interior introducing rotary motion and by the anglec of rotation region of rotatable movement contact 4 so that first realize flow through switching device
Alternating current from primary current path to the commutation of auxiliary current path, and in arc extinction and when further rotating motion, reaching
The formation of isolating partition is realized during the second place of Fig. 6.
Load separating switch 1 connection process realize in the following way, that is, be further introduced into the place as shown in figure 6
In the load separating switch 1 of separation point position rotary motion and further rotate rotatable movement contact 4 in a same direction,
Until the second last knife opposite end 6 and the first fixed contact 2 are conductively connected and the first knife opposite end 5 and the conduction of the second fixed contact 3
Connection, wherein ignited before connecting electric arc, this is arranged in filling with the container of dielectric for load separating switch 1
Situation there is no problem, and the vacuum switch tube 10 of inexpensively construction arc extinguishing contact system 9 is especially realized, because described true
Empty switching tube 10 be not involved in connection process and therefore for its it is resistance to connect property need not propose particular/special requirement.Additionally, around 360 °
In the arrangement of rotatable motion contact 4, auxiliary current path can be made up of cheap material, for example by steel, stainless steel or
Aluminium is made, because only temporarily guiding electric current on auxiliary current path, and especially occurs without short circuit current in auxiliary current path.
Fig. 7 shows threephase switch device 1, and wherein each phase 26,27 or 28 is formed according to the embodiment of Fig. 1 to Fig. 6, its
In obvious housing 24, and wherein single phase 26,27 and 28 is connected with each other by connecting element 29 so that by being introduced into figure
The rotary motion of driver (not shown) is incorporated into while being realized for all phases in rotary support 7 and operates.
Fig. 8 shows the load separating switch 1 in its second place of the isolating partition that band has been formed, such as with reference to figure
6 have explained in detail, wherein providing ground joint 30 in the second fixed contact 3 in fig. 8, the ground joint 30 is in Fig. 8
In with ground connection motion contact 31 be conductively connected, it is described ground connection motion contact 31 rotatably supported on the point of rotation 32 and with ground electricity
Gesture is connected.
Ground connection motion contact 31 is dividually illustrated with ground joint 30 in fig .9 so that in ground connection motion contact 31
The ground connection in the cable connector region of switching device is formd in illustrated position in fig. 8, and in the position for illustrating in fig .9
Switching device is in normal operation mode.
By with the individually construction by the single driver ground connection motion contact 31 for driving (not shown in figure)
Earthed switch, load separating switch 1 and the position of the switch of earthed switch be changeably mutually combined, therefore for example also in container
Failure situation in, when primary current path is closed and therefore even if also whole current path can be connect when busbar is connected
Ground and therefore effectively prevent the pressure initiation in container indigenous fault electric arc.
Reference list
1 load separating switch
2 first fixed contacts
3 second fixed contacts
4 motion contacts
5 first knife opposite ends
6 second knife opposite ends
7 rotary supports
8 conductive connecting devices
9 arc extinguishing contact systems
10 vacuum switch tubes
11 motion contacts
12 fixed contacts
13 contact springs
14 motion contact portion pins
15 first sliding contacts
16 second sliding contacts
17 connecting elements
18 swing shelf
19 cam rails
20 cam discs
21 points of rotation
22 guiding pins
23 induction elements
24 housings
25 retaining elements
26th, 27,28 phase
29 connecting elements
30 ground joints
31 ground connection motion contacts
32 points of rotation
Claims (5)
1. a kind of switching device for medium voltage switchgear equipment, the switching device is carried：Fixed by diametrically opposite first
Contact (2) and the second fixed contact (3) and can be by being arranged between the first fixed contact (2) and the second fixed contact (3)
Rotary support (7) rotation motion contact (4) formed main contact system, with the first of rotatable motion contact (4)
Position forms primary current path and the second place in rotatable movement contact (4) forms isolating partition, and is fixed by first
Contact (2), the second fixed contact (3), arc extinguishing contact system (9) and the first sliding contact (15) and the second sliding contact (16)
The auxiliary current path for being formed, with the anglec of rotation between first position and the second place of rotatable movement contact (4)
Formation is conductively connected with rotatable movement contact (4) in degree region so that touch rotary motion is incorporated into rotatable movement
Can realize flowing through during point (4) switching device alternating current from primary current path to the commutation of auxiliary current path, wherein, can revolve
Transhipment movable contact (4) in arc extinction and is introduced in addition with the device (18,19) for interrupting arc extinguishing contact system (20)
Rotary motion when realize the formation of isolating partition.
2. switching device according to claim 1, it is characterised in that the arc extinguishing contact system (9) is including with can lead to
Cross the vacuum switch tube (10) of the contact system of contact spring (13) closure.
3. switching device according to claim 2, it is characterised in that described device (18,19) is with passing through for operating
The swing bow of the cam disc (20) that induction element (23) couples with motion contact portion pin (14) of the vacuum switch tube (10)
Frame (18).
4. switching device according to any one of claim 1 to 3, it is characterised in that the rotatable movement contact (4)
It is formed to around 360 ° of rotations.
5. switching device according to any one of claim 1 to 3, it is characterised in that the switching device is load point
Leave pass (1).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012200962.0A DE102012200962B4 (en) | 2012-01-24 | 2012-01-24 | Switchgear, in particular switch disconnector, for medium-voltage switchgear |
| DE102012200962.0 | 2012-01-24 | ||
| PCT/EP2013/050491 WO2013110511A1 (en) | 2012-01-24 | 2013-01-11 | Switching device, more particularly a load interrupter switch, for medium-voltage switching systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104054150A CN104054150A (en) | 2014-09-17 |
| CN104054150B true CN104054150B (en) | 2017-05-31 |
Family
ID=47594688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380005529.6A Active CN104054150B (en) | 2012-01-24 | 2013-01-11 | Switching device for medium voltage switchgear equipment especially loads separating switch |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2789000B1 (en) |
| CN (1) | CN104054150B (en) |
| DE (1) | DE102012200962B4 (en) |
| NO (1) | NO2922890T3 (en) |
| WO (1) | WO2013110511A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319159B (en) * | 2014-11-19 | 2016-03-23 | 电光防爆科技股份有限公司 | A kind of three-phase isolation switch |
| FR3034251B1 (en) | 2015-03-27 | 2017-04-28 | Schneider Electric Ind Sas | SWITCH OF A THREE-PHASE NETWORK |
| CN108320931B (en) * | 2018-02-01 | 2023-06-27 | 雷顿电气科技有限公司 | Automatic change-over switch electric appliance |
| WO2020200864A1 (en) * | 2019-03-29 | 2020-10-08 | Siemens Aktiengesellschaft | Optimised three-position switch |
| ES1229781Y (en) * | 2019-04-26 | 2019-08-12 | Ormazabal Y Cia S L U | Gas cutting switch |
| EP3843117B1 (en) | 2019-12-24 | 2023-11-15 | Elna Kabel d.o.o. | Load-break switch without sf6 gas having a vacuum circuit interrupter for medium-voltage switching systems |
| FR3121267A1 (en) | 2021-03-24 | 2022-09-30 | Schneider Electric Industries Sas | Switching system of an electrical device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0693763A1 (en) * | 1994-07-20 | 1996-01-24 | Schneider Electric Sa | M.T. electrical switches |
| CN101964271A (en) * | 2010-09-28 | 2011-02-02 | 丹东供电设备厂 | High-voltage switch transfer current device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2719154B1 (en) * | 1994-04-25 | 1996-06-07 | Merlin Gerin | Medium voltage electric switch. |
| DE102004006476B4 (en) | 2004-02-04 | 2006-02-09 | Siemens Ag | Switch disconnectors |
| DE202010009448U1 (en) * | 2010-06-23 | 2010-09-09 | Ipt International Power & Technology Gmbh | High voltage switching device |
-
2012
- 2012-01-24 DE DE102012200962.0A patent/DE102012200962B4/en not_active Expired - Fee Related
-
2013
- 2013-01-11 WO PCT/EP2013/050491 patent/WO2013110511A1/en active Application Filing
- 2013-01-11 EP EP13700673.0A patent/EP2789000B1/en active Active
- 2013-01-11 CN CN201380005529.6A patent/CN104054150B/en active Active
- 2013-11-20 NO NO13798609A patent/NO2922890T3/no unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0693763A1 (en) * | 1994-07-20 | 1996-01-24 | Schneider Electric Sa | M.T. electrical switches |
| CN101964271A (en) * | 2010-09-28 | 2011-02-02 | 丹东供电设备厂 | High-voltage switch transfer current device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2789000A1 (en) | 2014-10-15 |
| EP2789000B1 (en) | 2018-01-03 |
| WO2013110511A1 (en) | 2013-08-01 |
| DE102012200962B4 (en) | 2018-07-26 |
| NO2922890T3 (en) | 2018-01-27 |
| DE102012200962A1 (en) | 2013-07-25 |
| CN104054150A (en) | 2014-09-17 |
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