CN101142648A - Curve profile switch - Google Patents
Curve profile switch Download PDFInfo
- Publication number
- CN101142648A CN101142648A CNA2006800087973A CN200680008797A CN101142648A CN 101142648 A CN101142648 A CN 101142648A CN A2006800087973 A CNA2006800087973 A CN A2006800087973A CN 200680008797 A CN200680008797 A CN 200680008797A CN 101142648 A CN101142648 A CN 101142648A
- Authority
- CN
- China
- Prior art keywords
- extinguishing arc
- contact
- extinguishing
- curve profile
- equipment
- 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.)
- Pending
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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
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- 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
- H01H33/127—Load break switches comprising a separate circuit breaker movable with a sectionalising contact arm and operated by such movement
-
- 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
Abstract
The invention relates to a device (1) for switching electric alternating current comprising an extinguishing contact assembly (2) for putting the device (1) under current and for extinguishing an electric arc occurring during switching off, a disconnection contact assembly in-series connected with respect to the extinguishing contact assembly (2) for providing a required dielectric strength and a drive for initiating a switching movement which is passed to the extinguishing contact assembly (2) by a drive kinematics (6,7,8,9,10,21). The aim of said invention is to develop a device having a simple structural design and devoid of the motion of mechanically sensitive parts. For this purpose, the drive kinematics has a an extinguishing curve profile (8) and a separation curve profile (17) arranged on at lest one cam disc (10,20) rotatably connected to the drive shaft (21) of said drive kinematics, wherein at least one contact of the extinguishing contact assembly (2) is mechanically coupled with an extinguishing contact pin (7) adjacent to the extinguishing curve profile (8) and at least one contact of the disconnection contact assembly (11) is mechanically coupled with a disconnection contact pin (16) adjacent to the separation curve profile (17).
Description
The present invention relates to a kind of current switch equipment, comprise that an extinguishing arc contact apparatus is used for connecting equipment and eliminate connect with the extinguishing arc contact apparatus separated contacts device of the compressive resistance that is used to provide needs and one of the electric arc that produces, when disconnecting in when energising being used to produce the driver that switch moves, switch moves can pass to the extinguishing arc contact apparatus by drive transmission device.
Be entitled as known this equipment among the goods catalogue HA35.41 of " medium-voltage equipment " in 2003 by Siemens AG Representation.There the 17th page has schematically illustrated a circuit breaker field, and it has the gas tank of an airtight filling sulphur hexafluoride.Some vacuum switch tubes that an extinguishing arc contact apparatus is respectively arranged arranged side by side and horizontal orientation are arranged in gas tank.Here each vacuum switch tube is attached troops to a unit in phase of AC network, and is connected with a separate contacts device by copper cash, and it is contained in the common case for circuit breaker with other separate contacts devices mutually.The separate contacts device of each phase and extinguishing arc contact apparatus are connected in the bus-bar and the series circuit between the cable pigtail of power supply, and wherein, the extinguishing arc contact apparatus is designed for the electric arc that elimination causes in a vacuum when its extinguishing arc contact separates.Eliminate the separate contacts no current of back separate contacts device and have enough spacings ground separated from one another at electric arc, so that the compressive resistance of requirement to be provided.For can stagger in time the ground switch, the separate contacts device with separate that driver is connected and the extinguishing arc contact apparatus is connected with the extinguishing arc driver.For prevent undesirable switching sequence and thereby misoperation, drive transmission device separately is engaged with each other by appropriate mutual interlocking gear.But its structure more complicated of independent driver and mutual interlocking gear also causes improving equipment cost.
By the known a kind of equipment that comprises extinguishing arc contact apparatus and separate contacts device of DE10047032C2, they are connected mutually, and here this series circuit is used for main contact device of cross-over connection.In order to stipulate the switching sequence between separate contacts device and the extinguishing arc contact apparatus, on the vacuum casting of extinguishing arc contact apparatus, settle a pilot pin, it is pressed against in switching process on the curve profile of cam and along its guiding.Yet the same complex structure of this known equipment.In addition, it can cause the motion of vacuum casting and the extinguishing arc contact apparatus that is mounted in it, and wherein relates to some responsive members.The motion of these sensitive components causes this known device to need often to safeguard.
The equipment that the purpose of this invention is to provide the described type of preface, it has simple structure and meanwhile also avoids the mechanically motion of sensitive components.
The present invention reaches the measure that this purpose takes to be, drive transmission device has an extinguishing arc curve profile to separate curve profile with one, they are located on the cam that the driving shaft rotation of at least one and drive transmission device is permanently connected, wherein, at least one of extinguishing arc contact apparatus contact and extinguishing arc contact plug mechanical connection, the latter abuts on the extinguishing arc curve profile, and at least one of separate contacts device contact with separate the contact plug mechanical connection, the latter abuts in and separates on the curve profile.
By the present invention, the actuation movement of described separate contacts device and extinguishing arc contact apparatus is produced by single driver.Replace complicated interlocking, be used for the prescribed switch order by the present invention by at least two curve profiles of design, they for example can design in single cam.Be connected with everybody a shared driving shaft by each cam of the present invention, the actuation movement of public driver passed to cam by it.Curve profile is process on contact plug, and contact plug rests on the curve profile and changes according to the profile of curve profile separately based on rotatablely moving and is driven.The extinguishing arc curve profile is coordinated with each other with the moulding that separates curve profile.Usually switching characteristic is adjusted into, makes the separate contacts device lag behind the extinguishing arc contact apparatus.Therefore the extinguishing arc contact apparatus is designed for switching current, causes electric arc this moment between contact.For eliminating electric arc, the extinguishing arc contact apparatus is in the suitable arc extinguishing medium, as gas or vacuum.The contact design of extinguishing arc contact apparatus is anti-as far as possible scaling loss, to avoid in charged disconnection and to cause the consequence of material heavy losses when connecting because of electric arc.Otherwise separate contacts device preferably no current is opened.Contact plug can be by appropriate motion by the skew of curve profile, and for example connecting rod or bar thick stick mechanism pass to contact apparatus separately.
Advantageously, the extinguishing arc curve profile designs on the extinguishing arc cam and separates the curve profile design on detaching cam.By this scheme of the present invention, curve profile can design on different cams, for example to process the form of the groove in cam.This has just simplified equipment assembling subsequently.
By a kind of preferred embodiment, but an extinguishing arc action bars that the extinguishing arc contact plug longitudinally moves by a Be Controlled and an extinguishing arc motion contact of extinguishing arc contact apparatus are rigidly connected.Appropriate here is, extinguishing arc motion contact is along described vertically opposed with the extinguishing arc fixed contact of a fixed-site of extinguishing arc contact apparatus, connects or separation thereby the lengthwise movement by the extinguishing arc action bars causes the contact of extinguishing arc contact apparatus contact.In other words, the extinguishing arc action bars is implemented a kind of lifter motion, and the extinguishing arc contact apparatus is designed to promote switch in the case.
By associated appropriate further developing, the separate contacts device has one, and be hinged on can rotating switchblade knife on the action bars.A kind of compact especially equipment is provided in this way.Different with it is, the switchblade knife of separate contacts device is hinged on the support of a fixed-site of equipment, thereby the switch motion that makes the separate contacts device is irrelevant and do not consider in the extinguishing arc curve profile with the switch motion of extinguishing arc action bars.
Advantageously, the extinguishing arc contact apparatus has a vacuum casting that wherein is in vacuum state.In other words, the extinguishing arc contact apparatus is a vacuum switch tube, but it has an extinguishing arc fixed contact and the extinguishing arc motion contact that Be Controlled is longitudinally moved, and they are longitudinally opposite each other.Extinguishing arc motion contact is connected with the shell of vacuum switch tube by the wavy metal box, and the sealing of vacuum casting necessity is provided in this way.
Preferably further develop by one, the separate contacts device has a grounding contact.The equipment isolation (freischalten) of can insulating is closed, to implement the work of upkeep operation and so on.Separate contacts device with this grounding contact is also referred to as the three-position type switch.
The design of other practicalities of the present invention and advantage are referring to the technical theme of accompanying drawing to the explanation of the embodiment of the invention, and wherein identical member adopts same Reference numeral and wherein:
Fig. 1 schematically illustrates by a kind of embodiment of equipment of the present invention and is in on-position;
Fig. 2 presentation graphs 1 apparatus shown is after the disconnection process begins;
Fig. 3 presentation graphs 1 apparatus shown arrived open position not long ago;
Fig. 4 presentation graphs 1 apparatus shown is in open position;
Fig. 5 presentation graphs 4 apparatus shown are after ground connection connects beginning;
Fig. 6 presentation graphs 5 apparatus shown finished not long ago in ground connection connection; And
Fig. 7 presentation graphs 1 apparatus shown is in earthing position.
Fig. 1 schematically illustrates the embodiment by present device 1.Represented equipment 1 has an extinguishing arc contact apparatus 2, it by a fixed-site extinguishing arc fixed contact 4 and extinguishing arc motion contacts 5 of being contained in the vacuum casting 3 form, the longitudinally opposed and Be Controlled of the latter and extinguishing arc fixed contact is longitudinally moved.Be in vacuum state in vacuum casting 3, in other words extinguishing arc contact arrangement 2 is vacuum switch tubes, and this vacuum switch tube is that the professional is known, so here need not this is discussed further.
Extinguishing arc motion contact 5 is installed in one and stretches into vacuum casting 3 interior can longitudinally works on the action bars 6 of guiding movement, and it has an extinguishing arc contact plug 7 at it back to extinguishing arc motion contact 5 those ends.Extinguishing arc contact plug 7 abuts on the extinguishing arc curve profile 8, and it is designed to process the limit, boundary of first groove 9 in cam 10 in the present embodiment.
This external equipment 1 has a separate contacts device 11, and it can be made up of by rotating switchblade knife 13 the separation fixed contact 12 of a fixed-site and one, and the latter links on the pin joint 14 of action bars 6.Switchblade knife 13 is connected with the withdrawal lever 15 of insulation, and it has one to abut in the separation contact plug 16 that separates on the curve profile 17 at its that end back to switchblade knife 13, separates the limit, boundary that curve profile 17 is designed to process second groove 19 in cam 20.Cam 10 is fixedlyed connected with driving shaft 21 rotations with 20.
Fig. 2 represents equipment 1 by Fig. 1 soon situation after the disconnection process begins.Driving shaft 21 rotation counterclockwise for this reason, make them along equidirectional turn round because driving shaft 21 is fixedlyed connected with 20 rotation with cam 10 this moment.According to the moulding of extinguishing arc curve profile 8, the extinguishing arc contact plug is along the longitudinal movement, thereby extinguishing arc motion contact 5 is separated with extinguishing arc fixed contact 4.
Otherwise, separate 17 of curve profiles and be designed to, when cam 20 revolutions, extinguishing arc contact plug 16 is not driven also thereby with switchblade knife 13 and remains on its on-position.Owing under "on" position, open the extinguishing arc contact apparatus, cause forming electric arc, when the alternating current that flows by equipment 1 electric arc when current zero passes through disappears in a vacuum.
Fig. 3 represents that the equipment 1 by Fig. 1 is in and is about to arrive open position state not long ago.As can be seen, separate the moulding of curve profiles 17 based on cam 20, make position revolution that switchblade knife 13 represents in Fig. 1 with respect to it and with separate fixed contact 12 and be in not contact condition.Owing to pass through extinguishing arc contact apparatus early cut-off electric current in time, so the separate contacts device is opened at no current state.Carry out the transition to position shown in Figure 3 from position shown in Figure 2, cause by driving shaft 21 anticlockwise further revolutions.Based on the moulding of cam 10 extinguishing arc curve profiles 8, the extinguishing arc fixed contact 4 of extinguishing arc contact apparatus 2 and the distance between the extinguishing arc moving contact 5 have only unconspicuous change.In other words, by the suitable moulding of curve profile, can when driving shaft 21 rotations, realize switching speed section arbitrarily.
Fig. 4 indication equipment 1 is in open position, and not only the contact of the contact of extinguishing arc contact apparatus 2 but also separate contacts device 11 is separated from one another at this moment.By the separation of extinguishing arc contact apparatus 2 contacts, cause eliminating the electric arc that when contact separates, causes in known manner.Owing to compare with extinguishing arc contact apparatus 2 at this open position, the contact of separate contacts device 11 has bigger spacing, and institute thinks that equipment 1 provides for example for the required compressive resistance of pressure among the 24kV.
Fig. 5 presentation graphs 4 apparatus shown 1 soon state after equipment 1 ground connection connects beginning.Here driving shaft 21 continues rotation counterclockwise with respect to Fig. 4, thereby based on the moulding that separates curve profile 17, switchblade knife 13 clockwise directions are turned back on the grounding contact 22 that is in ground potential.According to the moulding of extinguishing arc curve profile 8, extinguishing arc contact apparatus 2 is rested on its separation point position of having represented in Fig. 4.
Position during Fig. 6 indication equipment 1 ground connection, this moment, switchblade knife 13 was connected with grounding contact 22 contacts.Because the extinguishing arc contact apparatus disconnects, carries out so the contact between switchblade knife 13 and the grounding contact 22 turns on no current state, thereby avoids scaling loss between the above-mentioned contact.
Fig. 7 presentation graphs 1 apparatus shown 1 is in the dead ground position, and so extinguishing arc motion this moment contact 4 and extinguishing arc fixed contact 5 contact closure are the same ground connection of joint that is connected extinguishing arc contact apparatus 2 downstreams of expression not in the drawings.The contact closure of extinguishing arc contact apparatus 2 counterclockwise is further rotated by driving shaft 21 and passes through extinguishing arc curve profile 8 and separate the appropriate moulding realization in curve profile 17 associated ground.If cable outlet and thereby on the joint of vacuum switch tube fixed-site, have reverse voltage, then vacuum tube works grounding device that keep to connect in this position of the switch.
By being rotated in a clockwise direction the closure of driving shaft 21 realization equipment 1, this moment, the position of the switch of expression in Fig. 1 to 7 was passed through by opposite order.When connecting, separate contacts device 11 no current states are closed down, and wherein, extinguishing arc contact apparatus 2 is designed to anti-scaling loss.
Claims (6)
1. an alternating current switchgear (1), comprise that an extinguishing arc contact apparatus (2) is used for connecting equipment (1) and eliminates the electric arc that produces when disconnecting when energising, the separate contacts device (11) of the compressive resistance that is used to provide needs of connecting with extinguishing arc contact apparatus (2), and driver that is used to produce the switch motion, the switch motion can be passed through drive transmission device (6,7,8,9,10,21) pass to extinguishing arc contact apparatus (2), it is characterized by: described drive transmission device has an extinguishing arc curve profile (8) to separate curve profile (17) with one, they are located at the cam (10 that driving shaft (21) rotation of at least one and described drive transmission device is permanently connected, 20) on, wherein, at least one of extinguishing arc contact apparatus (2) contact and extinguishing arc contact plug (7) mechanical connection, the latter abuts on the described extinguishing arc curve profile (8), and at least one of separate contacts device (11) contact with separate contact plug (16) mechanical connection, the latter abuts in and separates on the curve profile (17).
2. according to the described equipment of claim 1, it is characterized by, the design of described extinguishing arc curve profile on the extinguishing arc cam and the design of described separation curve profile on a detaching cam.
3. according to claim 1 or 2 described equipment (1), it is characterized by, described extinguishing arc contact plug (7) can longitudinally make the extinguishing arc action bars (6) of guiding movement by one and an extinguishing arc moving contact (5) of described extinguishing arc contact apparatus (2) is rigidly connected.
4. according to the described equipment of claim 3 (1), it is characterized by, described separate contacts device (11) has one, and be hinged on can rotating switchblade knife (13) on the described action bars (6).
5. according to the described equipment of one of all claims in prostatitis (1), it is characterized by, described extinguishing arc contact apparatus (2) has a vacuum casting (3) that wherein is in vacuum state.
6. according to the described equipment of one of all claims in prostatitis (1), it is characterized by, described separate contacts device (11) has a grounding contact (22).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200510013231 DE102005013231B3 (en) | 2005-03-18 | 2005-03-18 | Cam profile switch |
| DE102005013231.6 | 2005-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101142648A true CN101142648A (en) | 2008-03-12 |
Family
ID=36406018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800087973A Pending CN101142648A (en) | 2005-03-18 | 2006-03-14 | Curve profile switch |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1859463A1 (en) |
| CN (1) | CN101142648A (en) |
| DE (1) | DE102005013231B3 (en) |
| RU (1) | RU2007138644A (en) |
| WO (1) | WO2006097457A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102257588A (en) * | 2008-12-18 | 2011-11-23 | 施耐德电器工业公司 | Medium voltage electric distribution cell |
| CN104064393A (en) * | 2014-06-05 | 2014-09-24 | 张宏开 | Load switch for magnesium electrolysis |
| CN104170040A (en) * | 2012-03-15 | 2014-11-26 | 西门子公司 | Switching device, in particular load interrupter |
| CN105788979A (en) * | 2014-12-24 | 2016-07-20 | 施耐德电器工业公司 | Circuit breaker unit and power distribution switch cabinet |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2921198B1 (en) | 2007-09-17 | 2010-03-12 | Areva T & D Sa | ACTUATION BY A MAIN SHAFT ASSEMBLY AND SECONDARY TREES OF A CIRCUIT BREAKER BREAKER |
| PL211951B1 (en) * | 2008-01-25 | 2012-07-31 | Januszkiewicz Edward Edjan Jednostka Innowacyjno Wdrożeniowa | Middle voltage hyphen, especially for the power miner's machines |
| EP2244275B1 (en) | 2009-04-23 | 2014-06-18 | Ormazabal Y Cia., S.L.U. | Switchgear for electric distribution networks |
| DE102010063866B3 (en) * | 2010-12-22 | 2012-04-05 | Siemens Aktiengesellschaft | Load circuit breaker, has coupling unit including transmission slider, and spring i.e. opened spring, arranged at bolts, where one of bolts of transmission slider is arranged on load-circuit breaker-support |
| EP2745302B1 (en) * | 2011-08-17 | 2017-11-15 | Hubbell Incorporated | Dual stroke mechanically latched mechanism |
| DE102013205354B3 (en) * | 2013-03-26 | 2014-07-10 | Alstom Technology Ltd. | Electrical switchgear |
| IN2013KO01351A (en) * | 2013-11-29 | 2015-06-05 | Schneider Electric Ind Sas | |
| FR3025049A1 (en) * | 2014-08-20 | 2016-02-26 | Alstom Technology Ltd | CONTROL SYSTEM FOR ELECTRICAL EQUIPMENT WITH SELECTIVE COUPLING |
| FR3104807B1 (en) * | 2019-12-15 | 2021-11-19 | Betoliere Jean Pierre | Switch / circuit breaker-disconnector for electrical distribution networks greater than 3.6KV, with cutting and closing of currents in a vacuum interrupter and insulation without SF6. |
| DE102020202689B4 (en) * | 2020-03-03 | 2022-06-09 | Siemens Aktiengesellschaft | Switching arrangement for medium voltage |
| RU206634U1 (en) * | 2021-03-10 | 2021-09-20 | Общество С Ограниченной Ответственностью "Свердловэлектро-Силовые Трансформаторы" (Ооо "Свэл-Силовые Трансформаторы") | High voltage apparatus contact device |
| RU206368U1 (en) * | 2021-03-10 | 2021-09-08 | Общество С Ограниченной Ответственностью "Свердловэлектро-Силовые Трансформаторы" (Ооо "Свэл-Силовые Трансформаторы") | High voltage apparatus receiving contact |
| RU2758067C1 (en) * | 2021-03-10 | 2021-10-26 | Общество С Ограниченной Ответственностью "Свердловэлектро-Силовые Трансформаторы" (Ооо "Свэл-Силовые Трансформаторы") | Contact system of the high voltage apparatus and the receiving contact of the contact system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR747866A (en) * | 1931-12-23 | 1933-06-24 | Siemens Ag | Conjunction-disjunction arrangement, composed of several switches intended to be actuated in a determined order of succession |
| DE893684C (en) * | 1939-10-11 | 1953-10-19 | Sachsenwerk Licht & Kraft Ag | Drive device for high voltage breaker |
| US3590186A (en) * | 1968-12-19 | 1971-06-29 | Allis Chalmers Mfg Co | Vacuum interrupter having series connected resistor and shunting means for the latter |
| JPS5812230A (en) * | 1981-07-16 | 1983-01-24 | 富士電機株式会社 | Vacuum laod switch with disconnecting switch |
| CH649864A5 (en) * | 1982-09-30 | 1985-06-14 | Gardy Particip App | Device interruption of electrical current. |
| US4591678A (en) * | 1984-10-26 | 1986-05-27 | Square D Company | High power switching apparatus |
| KR100319407B1 (en) * | 1999-10-07 | 2002-01-05 | 이종수 | Arc quenching device for ring main unit |
| DE10016950A1 (en) * | 2000-04-05 | 2001-10-11 | Abb Hochspannungstechnik Ag Zu | Procedure for switching off a short-circuit current in the area close to the generator |
| DE10047032C2 (en) * | 2000-09-22 | 2003-12-04 | Elpro Gmbh Berlin Industriehol | Medium voltage switch disconnectors with vacuum interrupters |
| DE102004006476B4 (en) * | 2004-02-04 | 2006-02-09 | Siemens Ag | Switch disconnectors |
-
2005
- 2005-03-18 DE DE200510013231 patent/DE102005013231B3/en not_active Expired - Fee Related
-
2006
- 2006-03-14 CN CNA2006800087973A patent/CN101142648A/en active Pending
- 2006-03-14 WO PCT/EP2006/060680 patent/WO2006097457A1/en active Application Filing
- 2006-03-14 EP EP06725036A patent/EP1859463A1/en not_active Withdrawn
- 2006-03-14 RU RU2007138644/09A patent/RU2007138644A/en not_active Application Discontinuation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102257588A (en) * | 2008-12-18 | 2011-11-23 | 施耐德电器工业公司 | Medium voltage electric distribution cell |
| CN106876208A (en) * | 2008-12-18 | 2017-06-20 | 施耐德电器工业公司 | Medium voltage electric distribution cell |
| CN104170040A (en) * | 2012-03-15 | 2014-11-26 | 西门子公司 | Switching device, in particular load interrupter |
| CN104064393A (en) * | 2014-06-05 | 2014-09-24 | 张宏开 | Load switch for magnesium electrolysis |
| CN104064393B (en) * | 2014-06-05 | 2016-04-27 | 东莞市大展机械自动化科技有限公司 | A kind of magnesium eletrolysis on-load switch |
| CN105788979A (en) * | 2014-12-24 | 2016-07-20 | 施耐德电器工业公司 | Circuit breaker unit and power distribution switch cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005013231B3 (en) | 2006-09-21 |
| WO2006097457A1 (en) | 2006-09-21 |
| EP1859463A1 (en) | 2007-11-28 |
| RU2007138644A (en) | 2009-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080312 |